                   Asset Backed Securities Portfolio Analysis
                           Fieldstone Mortgage Company
                            Mortgage Portfolio 2005-3
                                  2,438 records
                              Balance: 563,268,715

--------------------------------------------------------------------------------

Selection Criteria: Group 2
Table of Contents

1. FICO & Documentation
2. Original LTV
3. Principal Balance
4. APR & FICO
5. APR & LTV

--------------------------------------------------------------------------------

1. FICO & Documentation




FICO &                    % Full       % Limited       % Stated
Documentation  Count  Documentation  Documentation  Documentation  % Purchase
-----------------------------------------------------------------------------
501 - 550        113       2.58           0.00           0.31          0.95
551 - 600        469      11.02           0.16           2.01          7.25
601 - 650        610      12.69           0.17           8.29         15.23
651 - 700        764       4.41           0.14          29.62         28.92
701 - 750        386       0.86           0.11          14.69         13.89
751 - 800         92       0.30           0.03           3.40          3.66
801 - 850          4       0.02           0.00           0.24          0.26
-----------------------------------------------------------------------------
Total:          2438      31.88           0.61          58.57         70.17
=============================================================================


                                                Wtd
FICO &                                          Avg     IO    Silent
Documentation  % CO Refi   WAC   Avg Prin Bal   LTV   Loans  Seconds
--------------------------------------------------------------------
501 - 550         0.46    8.334   170,837.02   78.10   0.13    0.09
551 - 600         2.31    7.553   183,578.38   81.59   3.65    4.90
601 - 650         3.05    7.116   236,856.45   82.28  15.17   13.59
651 - 700         1.39    7.080   261,708.57   83.29  27.29   27.93
701 - 750         0.41    7.174   232,324.81   85.25  11.77   11.93
751 - 800         0.13    7.312   242,186.11   84.67   2.95    2.78
801 - 850         0.00    6.735   369,897.98   85.39   0.23    0.23
--------------------------------------------------------------------
Total:            7.75    7.228   231,037.21   82.97  61.19   61.45
====================================================================









2. Original LTV



                 Number   FICO <=  FICO 451 -  FICO 501 -  FICO 551 -  FICO 601 -  FICO 651 -  FICO 701 -  FICO 751 -
Original LTV    of Loans    450        500         550         600         650          700        750        800
---------------------------------------------------------------------------------------------------------------------
10.01 -  20.00       3      0.00      0.00        0.00        0.02        0.01         0.00       0.00        0.00
20.01 -  30.00       1      0.00      0.00        0.01        0.00        0.00         0.00       0.00        0.00
30.01 -  40.00       5      0.00      0.00        0.00        0.06        0.01         0.01       0.00        0.01
40.01 -  50.00      12      0.00      0.00        0.05        0.22        0.01         0.05       0.00        0.00
50.01 -  60.00      24      0.00      0.00        0.12        0.29        0.25         0.00       0.00        0.00
60.01 -  70.00      71      0.00      0.00        0.59        0.87        1.19         0.20       0.08        0.06
70.01 -  80.00    1210      0.00      0.00        1.18        7.46       13.45        19.55       7.17        2.00
80.01 -  90.00     687      0.00      0.00        1.47        5.18        9.71        13.37       6.17        1.24
90.01 - 100.00     425      0.00      0.00        0.00        1.18        1.01         2.32       2.50        0.64
---------------------------------------------------------------------------------------------------------------------
Total:            2438      0.00      0.00        3.43       15.29       25.65        35.50      15.92        3.96
=====================================================================================================================


                                       Avg
                FICO 801 -    WA       Prin             Gross      % Full       % Limited       % Stated      IO   Silent
Original LTV        850      FICO      Bal       WAC   Margin  Documentation  Documentation  Documentation  Loans  Second
-------------------------------------------------------------------------------------------------------------------------
10.01 -  20.00     0.00     608.44   58304.22   8.607   3.800       0.02          0.00            0.01       0.00    0.00
20.01 -  30.00     0.00     525.00   59947.82  10.100   6.250       0.00          0.00            0.01       0.00    0.00
30.01 -  40.00     0.00     634.01  111122.35   7.613   5.705       0.08          0.00            0.01       0.00    0.00
40.01 -  50.00     0.00     583.74  158184.47   7.260   5.706       0.27          0.00            0.07       0.07    0.00
50.01 -  60.00     0.00     585.90  157009.72   7.127   5.599       0.54          0.00            0.07       0.17    0.03
60.01 -  70.00     0.00     603.80  237772.76   7.357   5.752       1.28          0.08            1.22       1.31    0.24
70.01 -  80.00     0.13     655.65  237125.00   6.972   5.718      16.17          0.42           30.03      32.55   41.03
80.01 -  90.00     0.12     654.09  305585.76   7.180   5.712      11.44          0.08           22.16      25.93   20.13
90.01 - 100.00     0.01     678.40  101344.17   9.104   5.687       2.08          0.03            4.97       1.15    0.02
-------------------------------------------------------------------------------------------------------------------------
Total:             0.26     654.50  231037.21   7.228   5.715      31.88          0.61           58.57      61.19   61.45
=========================================================================================================================









3. Principal Balance



                                       FICO    FICO    FICO    FICO   FICO    FICO    FICO    FICO
                            FICO <=   451 -   501 -   551 -   601 -   651 -   701 -   751 -   801 -
Principal Balance               450     500     550     600     650     700     750     800     850
---------------------------------------------------------------------------------------------------
0.01 - 50,000.00              0.00     0.00    0.02    0.04    0.04    0.27    0.29    0.03    0.00
50,000.01 - 100,000.00        0.00     0.00    0.38    1.55    1.56    1.56    1.24    0.37    0.01
100,000.01 - 150,000.00       0.00     0.00    0.75    2.65    2.98    2.02    0.92    0.19    0.02
150,000.01 - 200,000.00       0.00     0.00    0.55    2.60    2.78    2.10    0.67    0.06    0.00
200,000.01 - 250,000.00       0.00     0.00    0.28    1.59    1.66    2.47    0.74    0.35    0.00
250,000.01 - 300,000.00       0.00     0.00    0.36    1.21    1.58    3.52    0.92    0.34    0.00
300,000.01 - 350,000.00       0.00     0.00    0.34    0.68    2.49    3.91    1.93    0.34    0.00
350,000.01 - 400,000.00       0.00     0.00    0.40    2.28    3.14    5.25    2.27    0.33    0.00
400,000.01 - 450,000.00       0.00     0.00    0.08    1.44    2.71    2.96    2.19    0.45    0.00
450,000.01 - 500,000.00       0.00     0.00    0.17    0.86    1.86    4.40    1.27    0.34    0.00
500,000.01 - 550,000.00       0.00     0.00    0.00    0.28    1.22    2.50    0.83    0.18    0.00
550,000.01 - 600,000.00       0.00     0.00    0.10    0.10    1.24    1.81    0.61    0.21    0.10
600,000.01 - 650,000.00       0.00     0.00    0.00    0.00    1.00    1.23    1.01    0.11    0.00
650,000.01 - 700,000.00       0.00     0.00    0.00    0.00    0.60    0.48    0.24    0.00    0.00
700,000.01 - 750,000.00       0.00     0.00    0.00    0.00    0.13    0.39    0.51    0.51    0.13
750,000.01 - 800,000.00       0.00     0.00    0.00    0.00    0.14    0.00    0.28    0.00    0.00
800,000.01 - 850,000.00       0.00     0.00    0.00    0.00    0.15    0.29    0.00    0.15    0.00
850,000.01 - 900,000.00       0.00     0.00    0.00    0.00    0.16    0.15    0.00    0.00    0.00
950,000.01 - 1,000,000.00     0.00     0.00    0.00    0.00    0.00    0.18    0.00    0.00    0.00
1,000,000.01 >=               0.00     0.00    0.00    0.00    0.21    0.00    0.00    0.00    0.00
---------------------------------------------------------------------------------------------------
Total:                        0.00     0.00    3.43   15.29   25.65   35.50   15.92    3.96    0.26
===================================================================================================


                                      Wtd
                              WA      Avg             Gross       % Full          % Limited    % Stated         IO    Silent
Principal Balance            FICO     LTV     WAC    Margin   Documentation   Documentation   Documentation   Loans   Second
----------------------------------------------------------------------------------------------------------------------------
0.01 - 50,000.00            689.65   92.39   9.758    5.828        0.14            0.01            0.52        0.00     0.01
50,000.01 - 100,000.00      648.15   87.10   8.740    5.990        3.44            0.03            3.01        0.06     2.27
100,000.01 - 150,000.00     628.99   83.57   7.834    5.648        5.80            0.03            3.14        1.13     5.17
150,000.01 - 200,000.00     625.70   81.35   7.374    5.690        5.40            0.07            2.78        2.48     5.57
200,000.01 - 250,000.00     644.98   81.77   7.279    5.763        2.65            0.04            3.64        3.69     4.97
250,000.01 - 300,000.00     654.60   82.49   7.121    5.756        1.84            0.05            5.15        5.29     5.63
300,000.01 - 350,000.00     663.03   82.41   6.935    5.703        2.23            0.17            6.51        7.39     7.69
350,000.01 - 400,000.00     652.91   81.91   6.932    5.658        3.94            0.06            8.67       10.58     7.45
400,000.01 - 450,000.00     661.20   83.09   7.039    5.695        2.25            0.08            6.73        8.17     5.65
450,000.01 - 500,000.00     664.63   82.62   6.883    5.698        1.29            0.08            6.85        7.35     5.48
500,000.01 - 550,000.00     670.06   82.90   6.825    5.664        0.37            0.00            3.88        4.34     3.42
550,000.01 - 600,000.00     671.03   83.73   6.878    5.751        0.51            0.00            3.04        3.35     2.83
600,000.01 - 650,000.00     674.84   84.83   6.801    5.663        0.77            0.00            2.12        3.24     2.34
650,000.01 - 700,000.00     664.07   81.92   6.836    5.799        0.00            0.00            0.84        1.20     1.09
700,000.01 - 750,000.00     720.20   84.41   6.975    5.777        0.26            0.00            1.41        1.42     0.90
750,000.01 - 800,000.00     681.93   87.67   6.846    5.766        0.00            0.00            0.28        0.42     0.28
800,000.01 - 850,000.00     674.92   84.86   6.762    5.986        0.30            0.00            0.00        0.59     0.15
850,000.01 - 900,000.00     655.71   82.48   6.872    5.650        0.31            0.00            0.00        0.31     0.15
950,000.01 - 1,000,000.00   669.00   80.00   6.850    6.250        0.18            0.00            0.00        0.18     0.18
1,000,000.01 >=             648.00   62.34   6.500    6.000        0.21            0.00            0.00        0.00     0.21
----------------------------------------------------------------------------------------------------------------------------
Total:                      654.50   82.97   7.228    5.715       31.88            0.61           58.57       61.19    61.45
============================================================================================================================









4. APR & FICO



                            FICO    FICO    FICO    FICO    FICO    FICO    FICO    FICO
                  FICO <=   451 -   501 -   551 -   601 -   651 -   701 -   751 -   801 -
APR & FICO            450     500     550     600     650     700     750     800     850
-----------------------------------------------------------------------------------------
6.001 - 6.500       0.00     0.00    0.00    1.26    5.40    9.29    5.03    0.89    0.13
6.501 - 7.000       0.00     0.00    0.28    4.11    9.10   13.40    6.25    1.41    0.10
7.001 - 7.500       0.00     0.00    0.55    2.37    5.44    6.75    2.10    0.63    0.00
7.501 - 8.000       0.00     0.00    0.67    4.09    3.55    3.34    0.46    0.52    0.02
8.001 - 8.500       0.00     0.00    0.72    1.58    1.12    0.56    0.03    0.00    0.00
8.501 - 9.000       0.00     0.00    0.45    1.06    0.78    0.32    0.06    0.02    0.00
9.001 - 9.500       0.00     0.00    0.35    0.50    0.22    0.29    0.38    0.07    0.00
9.501 - 10.000      0.00     0.00    0.24    0.26    0.03    0.80    0.98    0.31    0.00
10.001 - 10.500     0.00     0.00    0.12    0.05    0.02    0.58    0.38    0.08    0.00
10.501 - 11.000     0.00     0.00    0.04    0.00    0.00    0.16    0.24    0.04    0.01
-----------------------------------------------------------------------------------------
Total:              0.00     0.00    3.43   15.29   25.65   35.50   15.92    3.96    0.26
=========================================================================================


                    WA                       Gross      Avg         % Full         % Limited        % Stated      IO     Silent
APR & FICO         FICO     LTV      WAC    Margin   Principal   Documentation   Documentation   Documentation   Loans   Second
-------------------------------------------------------------------------------------------------------------------------------
6.001 - 6.500     673.79   80.99    6.390    5.681   340551.60        7.18            0.06           13.32       18.26    18.34
6.501 - 7.000     663.22   81.64    6.808    5.713   295827.36        9.71            0.28           20.75       26.02    25.78
7.001 - 7.500     652.42   82.96    7.301    5.699   247507.73        5.77            0.09           10.40       10.28    11.44
7.501 - 8.000     625.25   83.40    7.767    5.726   213212.28        4.42            0.06            6.91        4.94     4.44
8.001 - 8.500     594.09   85.02    8.306    5.736   186387.89        1.96            0.08            1.62        0.85     0.88
8.501 - 9.000     596.34   86.20    8.786    5.862   130049.20        1.53            0.00            0.97        0.67     0.38
9.001 - 9.500     625.03   89.07    9.380    5.965    91468.41        0.79            0.02            0.91        0.09     0.15
9.501 - 10.000    682.85   95.67    9.912    6.027    80964.40        0.39            0.00            2.11        0.07     0.03
10.001 - 10.500   683.17   95.72   10.279    6.039    67500.29        0.09            0.01            1.12        0.00     0.01
10.501 - 11.000   697.05   97.11   10.654    6.003    69742.02        0.04            0.00            0.45        0.00     0.00
-------------------------------------------------------------------------------------------------------------------------------
Total:            654.50   82.97    7.228    5.715   231037.21       31.88            0.61           58.57       61.19    61.45
===============================================================================================================================








5. APR & LTV



                         LTV      LTV      LTV      LTV      LTV      LTV
                  LTV  40.01 -  50.01 -  60.01 -  70.01 -  80.01 -  90.01 -   LTV    WA    WA
   APR & LTV     <=40     50       60       70       80       90      100    100+   LTV   FICO
----------------------------------------------------------------------------------------------
6.001 - 6.500    0.00    0.04     0.08     0.87    14.01     7.00     0.00   0.00  80.99   674
6.501 - 7.000    0.00    0.15     0.35     1.00    20.10    12.52     0.54   0.00  81.64   663
7.001 - 7.500    0.04    0.04     0.12     0.28     8.90     7.81     0.64   0.00  82.96   652
7.501 - 8.000    0.05    0.06     0.07     0.29     5.52     5.87     0.79   0.00  83.40   625
8.001 - 8.500    0.00    0.03     0.00     0.06     1.27     2.17     0.48   0.00  85.02   594
8.501 - 9.000    0.02    0.01     0.04     0.14     0.52     1.19     0.75   0.00  86.20   596
9.001 - 9.500    0.01    0.01     0.00     0.16     0.29     0.55     0.79   0.00  89.07   625
9.501 - 10.000   0.00    0.00     0.01     0.11     0.22     0.14     2.14   0.00  95.67   683
10.001 - 10.500  0.01    0.00     0.00     0.06     0.08     0.02     1.06   0.00  95.72   683
10.501 - 11.000  0.00    0.00     0.00     0.03     0.01     0.00     0.45   0.00  97.11   697
----------------------------------------------------------------------------------------------
Total:           0.14    0.34     0.67     3.00    50.94    37.27     7.65   0.00  82.97   654
==============================================================================================



                  Gross   Avg Prin       % Full       % Limited       % Stated      IO   Silent
   APR & LTV     Margin      Bal     Documentation  Documentation  Documentation  Loans   2nds
-----------------------------------------------------------------------------------------------
6.001 - 6.500     5.681  340,551.60       7.18           0.06          13.32      18.26   18.34
6.501 - 7.000     5.713  295,827.36       9.71           0.28          20.75      26.02   25.78
7.001 - 7.500     5.699  247,507.73       5.77           0.09          10.40      10.28   11.44
7.501 - 8.000     5.726  213,212.28       4.42           0.06           6.91       4.94    4.44
8.001 - 8.500     5.736  186,387.89       1.96           0.08           1.62       0.85    0.88
8.501 - 9.000     5.862  130,049.20       1.53           0.00           0.97       0.67    0.38
9.001 - 9.500     5.965   91,468.41       0.79           0.02           0.91       0.09    0.15
9.501 - 10.000    6.027   80,964.40       0.39           0.00           2.11       0.07    0.03
10.001 - 10.500   6.039   67,500.29       0.09           0.01           1.12       0.00    0.01
10.501 - 11.000   6.003   69,742.02       0.04           0.00           0.45       0.00    0.00
-----------------------------------------------------------------------------------------------
Total:            5.715  231,037.21      31.88           0.61          58.57      61.19   61.45
===============================================================================================


Please note LTV refers to loan to value for first lien and cumulative loan to
value for second lien








--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 24, 2005 13:42

--------------------------------------------------------------------------------
Disclaimer: This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.








                   Asset Backed Securities Portfolio Analysis
                           Fieldstone Mortgage Company
                            Mortgage Portfolio 2005-3
                                  2,438 records
                              Balance: 563,268,715

--------------------------------------------------------------------------------

Selection Criteria: Group 2
Table of Contents


1.  Summary Aggregate
2.  IO Loans From the Entire Pool


--------------------------------------------------------------------------------

1. Summary Aggregate

WAC: 7.228
Wtd Avg FICO: 654
FICO lt 600: 18.21
FICO 600 650: 26.16
WA LTV: 82.97
LTV eq 80: 44.35
LTV gt 80.01: 44.92
LTV 95.01 100: 4.20
Full Doc: 31.88
Stated Doc: 58.57
Limited Doc: 0.61
Purch %: 70.17
CO refi %: 7.75
Owner OCC: 98.86
Prepay Penalty: 84.97
Wtd Avg DTI: 41.87
ARM %: 89.51
2 YR Fixed ARM: 78.49
3 YR Fixed ARM: 9.78
1st Lien %: 95.60
Avg Loan Balance: 231037.21
# of Loans: 2438
Loan Bal < 100K: 7.33
Mtg Rates > 12%: 0.00
Manuf Housing (%): 0.07
Silent 2nd %: 61.45
IO Loan %: 61.19








2. IO Loans From the Entire Pool

5 YR IO: 100.00
2 YR IO: 0.00
FICO: 671
LTV: 82.54
DTI: 42.80
Full Doc: 20.04
Purchase: 75.76








--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 24, 2005 13:42

--------------------------------------------------------------------------------
Disclaimer: This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.





Fieldstone Mortgage Investment Trust, Series 2005-3

FOR INTERNAL DISTIBUTION ONLY



Prepayment Speed     65% Pricing  65% Pricing  65% Pricing  65% Pricing  100% Pricing  100% Pricing  100% Pricing  100% Pricing
Losses                    SDA         SDA          SDA          SDA          SDA            SDA          SDA           SDA
Loss Severity             45%         55%          45%          55%          45%            55%          45%           55%
P&I Advancing             Yes         Yes          Yes          Yes          Yes            Yes          Yes           Yes
Lag                       12           12           12           12           12            12            12            12
LIBOR                     FWD         FWD       FWD + 200    FWD + 200       FWD            FWD        FWD + 200     FWD + 200
Triggers                 Fail         Fail         Fail         Fail         Fail          Fail          Fail          Fail
Optional Redemption  To Maturity  To Maturity  To Maturity  To Maturity   To Maturity   To Maturity   To Maturity   To Maturity

Class M6
WAL for Princ Pmts      15.79        16.91        16.66        17.58         9.63          10.56         10.09         10.91
Cum Loss                16.64%       17.36%       15.09%       15.69%       13.30%         13.57%       12.05%        12.27%
Month/Year of 1st
   $ Loss             12/25/2012   10/25/2012   11/25/2012   9/25/2012     7/25/2014     5/25/2014     5/25/2015     1/25/2015
SDA Multiple (1st
   $ Loss)             3274 SDA     2616 SDA     2843 SDA     2283 SDA     3882 SDA       3049 SDA     3395 SDA      2678 SDA

Class M8
WAL for Princ Pmts      17.57        18.34        18.28        18.98         11.27         11.97         11.66         12.24
Cum Loss                14.14%       14.75%       12.57%       13.07%       10.52%        10.72%         9.32%         9.47%
Month/Year of 1st
   $ Loss             10/25/2012   7/25/2012    9/25/2012    6/25/2012     9/25/2014     9/25/2014     4/25/2019     7/25/2019
SDA Multiple (1st
   $ Loss)             2600 SDA     2110 SDA     2221 SDA     1809 SDA     2843 SDA      2268 SDA      2440 SDA      1952 SDA


This information is being provided in response to your specific request for
information. The information has been prepared and furnished to you solely by
CREDIT SUISSE FIRST BOSTON CORPORATION (CSFBC) and not the Issuer of the
Securities or any of its affiliates. The preliminary description of the under-
lying assests has not been independently verified by CSFBC. CSFBC is not acting
as agent for the Issuer or its affiliiates in connection with the proposed
transaction. All information contained herein is preliminary, limited in nature
and subject to completion or amendment. CSFBC makes no representation that the
above referenced seurity will actually perform as described in any scenario. The
above analysis alone is not intended to be a prospectus and any investment
decision with respect to the security should be made by you based solely upon
the information contained in the final prospectus. Under no circumstances shall
the information presented constitute an offer to sell or solicitation of an
offer to by nor shall there be any sale of securities in any jurisdiction in
which such offer, solicitation or sale would be unlawful prior to registration
or qualification under the securities laws of such jurisdiction. The securities
my not be sold nor may an offer to buy be accepted prior to the delivery of a
final prospectus relating to the securites.







Dynamic Credit Collateral Analysis
FMIC 2005-3

I. FICO and LTV



                                                                Percent
                                         Total       Average       of     Wtd   Wtd    Wtd    Wtd
                                        Current       Current    total    Avg   Avg    Avg    Avg                  % Owner
Grouping                     count      Balance       Balance   Balance  FICO   DTI    LTV    GWAC  % SFD   %PUD  Occupied
--------------------------------------------------------------------------------------------------------------------------
FICO 500-524 and LTV > 65       24    4,026,941.24  167,789.22     0.46   517  44.22  75.95  8.845  46.39  35.61       100
FICO 525-549 and LTV > 65      115   17,186,334.28  149,446.39     1.96   539  40.11  81.99  8.526  75.21  19.09     99.48
FICO 550-574 and LTV > 65      311   55,600,316.91  178,779.15     6.35   562  41.56  83.95  7.999  74.98  18.54     98.57
FICO 575-599 and LTV > 65      468   80,162,472.69  171,287.33     9.16   588  41.19  82.49  7.411  76.49  14.29     99.13
FICO 600-619 and LTV > 70      475   94,440,288.35  198,821.66    10.79   609  40.37  83.16  7.202  67.73  19.96     98.36
FICO 620-639 and LTV > 70      436   86,208,532.00  197,725.99     9.85   629  40.72  83.35  7.161  66.16  21.86     98.13
FICO 640-659 and LTV > 70      443  102,457,337.66  231,280.67     11.7   649  41.85  82.96  7.062  66.77  21.15     97.34
FICO 660-679 and LTV > 80      155   50,188,389.38  323,796.06     5.73   669  43.74   86.6  6.999   61.8  16.61       100
FICO 680-699 and LTV > 80      341   48,001,594.02  140,767.14     5.48   689  43.06  90.28   7.75  70.54     11      99.3
FICO 700-724 and LTV > 80      263   40,605,790.23  154,394.64     4.64   711  43.71  90.35  7.624  68.01  10.49       100
FICO 725-749 and LTV > 80      150   23,225,033.05  154,833.55     2.65   735  43.87  90.25  7.624  62.97   8.23     99.68
FICO 750 - Max and LTV > 90     82    5,394,887.45   65,791.31     0.62   767   42.6  99.24  9.693  69.82   15.6       100


                                                                                               % MI
                                                          %     % 12 or 24     %          Covered (By          % With
                                 %       2+    % Full  Limited  Month Bank  Stated  % No   Remaining   % Int   Silent
Grouping                     Investor  Family    Doc     Doc    Statements    Doc    Doc      Bal)      Only  Seconds
---------------------------------------------------------------------------------------------------------------------
FICO 500-524 and LTV > 65           0   12.25    87.8        0        12.2       0     0            0      0        0
FICO 525-549 and LTV > 65        0.52    0.75   75.04        0       11.21   13.75     0            0      0     9.09
FICO 550-574 and LTV > 65        1.43    2.05   71.68        0       14.11   14.21     0            0  40.27    10.52
FICO 575-599 and LTV > 65        0.87    2.26   74.98     1.11       12.21   11.69     0            0  25.58    43.46
FICO 600-619 and LTV > 70        1.64    4.27    72.8        0       12.55   14.66     0            0  58.03    48.46
FICO 620-639 and LTV > 70        1.87    4.83   60.96     1.18       15.21   22.64     0            0  64.81    52.28
FICO 640-659 and LTV > 70        2.66    6.44   42.13     0.42        8.81   48.65     0            0  70.77    63.76
FICO 660-679 and LTV > 80           0   10.28   17.34        0        5.75   76.91     0            0  80.15    67.72
FICO 680-699 and LTV > 80         0.7    9.46   13.14     0.19        3.37    83.3     0            0  61.98    49.45
FICO 700-724 and LTV > 80           0   12.11   10.12        0        1.32   88.55     0            0  62.92    52.76
FICO 725-749 and LTV > 80        0.32    21.6   14.24     0.25        1.52      84     0            0  62.86    54.99
FICO 750 - Max and LTV > 90         0    8.43    6.09     0.67        2.04   91.21     0            0      0        0


II. LTV and DTI



                                                                    Percent
                                                                       of     Wtd   Wtd    Wtd    Wtd
                                            Current       Current    total    Avg   Avg    Avg    Avg                  % Owner
Grouping                          count     Balance       Balance   Balance  FICO   DTI    LTV    GWAC  % SFD   %PUD  Occupied
------------------------------------------------------------------------------------------------------------------------------
LTV < 80 and DTI gt 50               72  14,122,348.47  196,143.73     1.61   601  52.62  67.69   7.26  62.63  19.49     88.84
LTV 80.00 to 84.99 and DTI gt 50     89  19,805,674.69  222,535.67     2.26   622   52.7  80.56  6.977   63.4  23.78     98.73
LTV 85.00 89.99 and DTI gt 50        30   7,412,699.80  247,089.99     0.85   615  52.83  85.21  7.333  84.01   8.45       100
LTV 90.00 94.99 and DTI gt 50        17   4,441,084.82  261,240.28     0.51   641   52.3   90.3  7.093  58.17      0       100
LTV 95.00 99.99 and DTI gt 50         8   1,935,086.62  241,885.83     0.22   605  53.25  95.04  7.748  67.28  25.12       100
LTV 100.00 109.99 and DTI gt 50       9     357,287.96   39,698.66     0.04   711  52.14    100  9.608  52.57  29.53       100


                                                                                                   % MI
                                                               %     % 12 or 24     %          Covered (By          % With
                                     %        2+    % Full  Limited  Month Bank  Stated  % No   Remaining   % Int   Silent
Grouping                          Investor  Family    Doc     Doc    Statements    Doc    Doc      Bal)      Only  Seconds
--------------------------------------------------------------------------------------------------------------------------
LTV < 80 and DTI gt 50               11.16    12.3    79.2        0       16.74    4.06     0            0  56.42    10.83
LTV 80.00 to 84.99 and DTI gt 50      1.27    7.93   85.39        0        9.41     5.2     0            0  48.94    58.46
LTV 85.00 89.99 and DTI gt 50            0       0   90.74        0        3.19    6.07     0            0  51.77    28.44
LTV 90.00 94.99 and DTI gt 50            0   13.99   98.74        0        1.26       0     0            0  55.51    26.47
LTV 95.00 99.99 and DTI gt 50            0       0   69.96        0       30.04       0     0            0  20.37        0
LTV 100.00 109.99 and DTI gt 50          0       0   86.18        0       13.82       0     0            0      0        0


III. DTI and FICO



                                                                   Percent
                                            Total       Average       of     Wtd   Wtd    Wtd    Wtd
                                           Current       Current    total    Avg   Avg    Avg    Avg                  % Owner
Grouping                        count      Balance       Balance   Balance  FICO   DTI    LTV    GWAC  % SFD   %PUD  Occupied
-----------------------------------------------------------------------------------------------------------------------------
DTI 20.00 29.99 and FICO < 550     19    2,354,498.21  123,920.96     0.27   536  25.72  76.14  8.447  70.43  29.57       100
DTI 30.00 34.99 and FICO < 600    111   18,488,070.23  166,559.19     2.11   571   32.7  79.96  7.823  73.81  17.69     98.53
DTI 35.00 39.99 and FICO < 675    453   83,421,495.00  184,153.41     9.53   618  37.82  81.06  7.371  71.02  16.94     98.07
DTI 40.00 44.99 and FICO < 675    581  120,879,014.78  208,053.38    13.81   621  42.58  81.94   7.29   68.9   19.5      98.5
DTI 45.00 49.99 and FICO < 700  1,220  270,044,682.12  221,348.10    30.85   638  47.88  82.67  7.227  67.33  17.57        98
DTI 50.00 54.99 and FICO < 750    228   48,889,803.15  214,428.96     5.59   616  52.57  79.23  7.165  64.75  18.29     96.26
DTI >= 55.00 and FICO < 750         2      501,600.00  250,800.00     0.06   625     55   83.5  8.179    100      0       100


                                                                                                % MI
                                                             %     % 12 or 24    %           Covered (By          % With
                                   %        2+    % Full  Limited  Month Bank  Stated  % No   Remaining   % Int   Silent
Grouping                        Investor  Family    Doc     Doc    Statements    Doc    Doc      Bal)      Only  Seconds
------------------------------------------------------------------------------------------------------------------------
DTI 20.00 29.99 and FICO < 550         0       0   66.71        0          15   18.29     0            0      0     7.02
DTI 30.00 34.99 and FICO < 600      1.47    2.31   68.71     2.34       15.43   13.51     0            0  22.61    22.58
DTI 35.00 39.99 and FICO < 675      1.93    6.63   56.55     0.47        9.87   33.11     0            0  54.45    46.79
DTI 40.00 44.99 and FICO < 675       1.5    4.69   50.83     1.07        7.03   41.06     0            0  57.72    50.66
DTI 45.00 49.99 and FICO < 700         2    6.41   42.82     0.29        5.02   51.86     0            0  65.58    62.65
DTI 50.00 54.99 and FICO < 750      3.74    8.65   83.66        0       10.42    5.92     0            0  50.89    34.78
DTI >= 55.00 and FICO < 750            0       0   47.37        0       52.63       0     0            0    100    47.37




IV. LIMITED AND STATED DOC



                            Total         Average     Percent
                           Current        Current    of total   Wtd Avg   Wtd Avg   Wtd Avg   Wtd Avg
Grouping       count       Balance        Balance     Balance     FICO      DTI       LTV       GWAC
-----------------------------------------------------------------------------------------------------
FICO 500 524       1       159,903.52   159,903.52       0.02     520      40.88        65      9.05
FICO 525 574      56    12,059,712.01   215,352.00       1.38     558      41.59        73     8.261
FICO 575 599      51    12,294,068.49   241,060.17        1.4     588      41.05     74.17     7.773
FICO 600 619      62    14,608,605.70   235,622.67       1.67     610      40.95     84.41     8.001
FICO 620 639      90    23,945,130.15   266,057.00       2.74     628      41.85     82.52     7.657
FICO 640 659     188    52,540,495.72   279,470.72          6     649      42.37     81.75     7.261
FICO 660 679     385   107,811,631.00   280,030.21      12.32     669      43.41     81.86     7.051
FICO 680 699     463    87,189,678.38   188,314.64       9.96     689      42.91     84.31      7.36
FICO 700 724     381    73,369,212.85   192,570.11       8.38     711      43.25      84.5     7.264
FICO 725 749     204    40,033,562.02   196,242.95       4.57     735      43.01     84.65     7.212
FICO 750 max     163    30,868,699.87   189,378.53       3.53     770      43.15     84.37     7.342


                                                                                 %      % 12 or 24
                                % Owner                                %      Limited   Month Bank
Grouping       % SFD   % PUD   Occupied   % Investor   2+ Family   Full Doc     Doc     Statements
--------------------------------------------------------------------------------------------------
FICO 500 524       0     100        100            0           0          0         0            0
FICO 525 574   70.99   18.91      97.86         2.14        7.42          0         0            0
FICO 575 599   90.57    3.92      98.74         1.26           0          0      7.25            0
FICO 600 619   68.41   21.67        100            0         7.7          0         0            0
FICO 620 639   76.16   12.76      95.09         4.91        5.03          0      4.26            0
FICO 640 659   71.95   18.58       96.6          3.4        5.72          0      0.81            0
FICO 660 679   60.96   17.54      97.15         2.85       11.26          0       0.3            0
FICO 680 699   65.72   14.46      96.61         3.39        7.95          0      0.52            0
FICO 700 724   68.72   10.11      98.01         1.99       11.94          0      0.45            0
FICO 725 749   66.67   11.62      96.78         3.22       13.85          0      0.71            0
FICO 750 max   67.31   18.47       98.8          1.2        8.08          0      0.58            0


                                         % MI
                                     Covered (By                                  % With
                    %         %       Remaining                                   Silent
Grouping       Stated Doc   No Doc       Bal)       % IO   % CA    % NY   % FL   Seconds
----------------------------------------------------------------------------------------
FICO 500 524          100        0             0       0       0     0       0         0
FICO 525 574          100        0             0   46.11   44.91     0   11.18      0.91
FICO 575 599        92.75        0             0   55.63   41.46     0    16.1      1.25
FICO 600 619          100        0             0   51.28   33.11     0   16.85      0.87
FICO 620 639        95.74        0             0   71.97    55.6     0    8.85      6.94
FICO 640 659        99.19        0             0   74.97   48.55     0    9.57     62.57
FICO 660 679         99.7        0             0   79.49   55.97     0    6.28     83.05
FICO 680 699        99.48        0             0   71.02   57.25     0    7.42      69.8
FICO 700 724        99.55        0             0   69.97   62.42     0    4.86     71.59
FICO 725 749        99.29        0             0   72.54   59.77     0    4.58     72.96
FICO 750 max        99.42        0             0   70.25   54.51     0    9.13     74.07


V. High LTV LOANS



                                 Total         Average    Percent
                                Current        Current    of total   Wtd Avg   Wtd Avg   Wtd Avg   Wtd Avg
Grouping            count       Balance        Balance     Balance     FICO      DTI       LTV       GWAC
----------------------------------------------------------------------------------------------------------
LTV 80.00 89.99     2,421   566,498,728.17   233,993.69      64.72       658     42.33     81.75     7.013
LTV 90.00 94.99       556   124,957,327.52   224,743.39      14.28       635     40.95     90.17     7.522
LTV 95.00 99.99       170    27,553,801.12   162,081.18       3.15       631     41.76     95.11     8.174
LTV 100.00 110.00     546    31,763,511.15    58,174.93       3.63       715     43.33       100      9.99


                                                                                                 % 12 or 24
                                    % Owner                                          % Limited   Month Bank
Grouping            % SFD   % PUD   Occupied   % Investor   2+ Family   % Full Doc      Doc      Statements
-----------------------------------------------------------------------------------------------------------
LTV 80.00 89.99     67.24   17.34      97.82         2.18         7.3        35.96         0.5         7.36
LTV 90.00 94.99     68.55   15.92      99.65         0.35        6.49        52.14        0.05        10.01
LTV 95.00 99.99     66.89   19.75        100            0        8.22        64.32           0         9.38
LTV 100.00 110.00   69.82   12.09        100            0        7.87         8.19        0.58         1.94


                                      % MI Covered
                    % Stated   % No   (By Remaining                                  2-28    3-27   5-25
Grouping               Doc      Doc        Bal)        % IO    % CA   % NY   % FL    ARMs    ARMs   ARMs
--------------------------------------------------------------------------------------------------------
LTV 80.00 89.99        56.18      0               0   68.95   42.84     0    6.81   81.97   10.16      0
LTV 90.00 94.99         37.8      0               0   60.14   35.52     0    8.42   80.02   14.32      0
LTV 95.00 99.99         26.3      0               0   29.94   17.63     0    7.89   77.06   12.38      0
LTV 100.00 110.00       89.3      0               0       0   52.05     0    5.34       0       0      0




VI. IO LOANS




                                                   Percent
                            Total        Average      of     Wtd   Wtd    Wtd    Wtd
                           Current       Current    total    Avg   Avg    Avg    Avg                  % Owner      %
Grouping        count      Balance       Balance   Balance  FICO   DTI    LTV    GWAC  % SFD   %PUD  Occupied  Investor
-----------------------------------------------------------------------------------------------------------------------
FICO 525 - 574    111   26,756,471.62  241,049.29     3.06   562  43.61  77.13  7.695  72.36  18.79     98.42      1.58
FICO 575 - 599    100   24,762,965.37  247,629.65     2.83   587  41.52  76.84  7.339  80.14  12.05     98.56      1.44
FICO 600 - 619    230   57,674,654.74  250,759.37     6.59   610  40.22  82.63  7.056  70.27  17.88     97.59      2.41
FICO 620 - 639    240   59,538,877.25  248,078.66      6.8   629  41.62  81.95  7.053  64.61  22.59     98.07      1.93
FICO 640 - 659    270   75,063,460.35  278,012.82     8.58   649  42.24  82.51  6.971  67.37  19.36     97.75      2.25
FICO 660 - 679    347  104,961,559.56  302,482.88    11.99   669  43.76  82.16  6.909  62.43  17.88     97.32      2.68
FICO 680 - 699    233   71,516,945.06  306,939.68     8.17   689  43.15  82.25  6.845   65.7  14.53     96.92      3.08
FICO 700 - 724    181   57,223,516.65  316,152.03     6.54   711  44.08  82.83  6.798  68.85  11.05     97.41      2.59
FICO 725 - 749     98   32,537,570.74  332,016.03     3.72   735  43.18  82.54  6.685  69.89   7.25      95.1       4.9
FICO 750 - Max     85   25,883,215.17  304,508.41     2.96   770   43.1  81.83  6.834  61.35  17.28      98.9       1.1


                                                                    % MI
                                                                 Covered
                          %       %     % 12 or 24     %     %      (By
                  2+     Full  Limited  Month Bank  Stated   No  Remaining                           2-28   3-27  5-25
Grouping        Family   Doc     Doc    Statements    Doc   Doc     Bal)    % IO   %CA   %NY   %FL   ARMs   ARMs  ARMs
----------------------------------------------------------------------------------------------------------------------
FICO 525 - 574    2.78  67.23        0       11.98   20.78    0          0   100  45.55    0  4.46  84.96  14.44     0
FICO 575 - 599    3.61  59.34     1.85       13.04   25.77    0          0   100  50.05    0  3.85  82.89  11.78     0
FICO 600 - 619    3.33   73.4        0       13.61   12.99    0          0   100  43.15    0  6.13  83.97  12.08     0
FICO 620 - 639    4.27  55.04     1.27       16.02   27.67    0          0   100  41.35    0  4.98  81.97  14.95     0
FICO 640 - 659    6.82  39.26     0.57        8.27   51.91    0          0   100  47.76    0  6.96  84.74   9.74     0
FICO 660 - 679    8.74  15.19     0.31        3.16   81.34    0          0   100  62.31    0  4.88  86.04  10.59     0
FICO 680 - 699     8.2  10.66      0.5        2.76   86.08    0          0   100  62.43    0  5.86  87.91   8.35     0
FICO 700 - 724   10.92    8.9     0.58        1.39   89.14    0          0   100  69.65    0  3.04  87.51   9.54     0
FICO 725 - 749   15.25   8.53        0        2.22   89.25    0          0   100  71.54    0  1.09  89.77   8.77     0
FICO 750 - Max   14.68  13.13        0        3.09   83.78    0          0   100   63.9    0  6.51  81.75  15.76     0


VII. SECOND LIEN LOANS (IF ANY)




                                                 Percent
                           Total       Average      of     Wtd   Wtd    Wtd     Wtd
                          Current      Current    total    Avg   Avg    Avg     Avg                  % Owner      %
Grouping        count     Balance      Balance   Balance  FICO   DTI    LTV    GWAC   % SFD   %PUD  Occupied  Investor
----------------------------------------------------------------------------------------------------------------------
FICO 680 - 699    230  12,982,369.15  56,445.08     1.48   689  43.38  99.75  10.002  69.17  15.04       100         0
FICO 700 - 724    178  10,337,751.92  58,077.26     1.18   710  43.19  99.38    9.98  72.38   9.43       100         0
FICO 725 - 749    102   5,930,688.85  58,144.01     0.68   735  43.13  99.68  10.037  68.74   6.73       100         0
FICO 750 - Max     82   4,693,449.68  57,237.19     0.54   770  43.04  99.85   9.961  65.31  17.93       100         0


                                                                    % MI
                                                                  Covered
                          %       %     % 12 or 24     %     %      (By
                  2+     Full  Limited  Month Bank  Stated   No  Remaining
Grouping        Family   Doc     Doc    Statements    Doc   Doc     Bal)    % IO   %CA   %NY   %FL
--------------------------------------------------------------------------------------------------
FICO 680 - 699    4.84  10.13     0.69           2   87.17    0          0     0   49.1    0  7.41
FICO 700 - 724    8.82   6.92        0        1.92   91.16    0          0     0  54.89    0  4.11
FICO 725 - 749   13.18   6.71     0.96        0.79   91.54    0          0     0  53.28    0   1.8
FICO 750 - Max    9.69      7     0.77        2.35   89.89    0          0     0  50.41    0  8.37


VIII. MANUFACTURED HOME LOANS (IF ANY)




                                               Percent
                          Total      Average      of     Wtd   Wtd    Wtd    Wtd
                         Current     Current    total    Avg   Avg    Avg    Avg                 % Owner      %
Grouping        count    Balance     Balance   Balance  FICO   DTI    LTV    GWAC  % SFD  %PUD  Occupied  Investor
------------------------------------------------------------------------------------------------------------------
FICO 620 - 639      1  405,000.00  405,000.00     0.05   637  42.24  69.83  6.675      0     0       100         0


                                                                   % MI
                                                                 Covered
                          %      %     % 12 or 24     %     %      (By
                  2+    Full  Limited  Month Bank  Stated   No  Remaining                       2-28  3-27  5-25
Grouping        Family   Doc    Doc    Statements    Doc   Doc     Bal)    % IO  %CA  %NY  %FL  ARMs  ARMs  ARMs
----------------------------------------------------------------------------------------------------------------
FICO 620 - 639       0     0        0           0     100    0          0   100  100    0    0     0   100     0





1. LTV - FICO (Aggregate)



LTV - FICO
(Aggregate)     0-499  500-519  520-539  540-559  560-579  580-599
------------------------------------------------------------------
0.00 - 65.00        0     0.06     0.13     0.36     0.63     0.62
65.01 - 70.00       0     0.07     0.11     0.29     0.34     0.42
70.01 - 75.00       0      0.1     0.27     0.41     0.24     0.38
75.01 - 78.00       0        0     0.03     0.26     0.04     0.13
78.01 - 80.00       0        0     0.23     0.91     0.89     4.43
80.01 - 85.00       0        0     0.47     0.59     0.68        1
85.01 - 90.00       0        0        0     1.35     1.83     1.17
90.01 - 95.00       0        0        0     0.01     0.67     0.61
95.01 - 100.00      0        0        0        0        0        0
------------------------------------------------------------------
Total:              0     0.22     1.24     4.18     5.33     8.76
------------------------------------------------------------------


LTV - FICO
(Aggregate)     600-619  620-639  640-659  660-679  680-699  700-719   720+
---------------------------------------------------------------------------
0.00 - 65.00       0.14     0.38     0.36     0.13     0.24     0.02   0.09
65.01 - 70.00      0.48     0.33     0.26     0.13     0.01     0.14   0.17
70.01 - 75.00      0.79     0.44     0.34     0.19     0.07     0.11   0.17
75.01 - 78.00      0.24     0.19     0.18     0.26     0.12     0.08   0.15
78.01 - 80.00      5.38     4.89     6.03     8.97     5.78     3.55   5.22
80.01 - 85.00       1.1     1.51     2.96     3.88     2.55     1.68   2.23
85.01 - 90.00      2.63     2.45     1.73     1.66     1.35     1.02   1.35
90.01 - 95.00      0.65     0.38     0.48     0.19     0.16     0.31   0.29
95.01 - 100.00        0        0        0        0     1.43     0.91   1.37
---------------------------------------------------------------------------
Total:             11.4    10.56    12.32    15.41     11.7     7.83  11.04
---------------------------------------------------------------------------


2. LTV - FICO (ARM-Purchase)



LTV - FICO
(ARM-Purchase)  0-499  500-519  520-539  540-559  560-579  580-599
------------------------------------------------------------------
0.00 - 65.00        0        0     0.06     0.05     0.06     0.05
65.01 - 70.00       0        0        0     0.02     0.06     0.05
70.01 - 75.00       0     0.04     0.12     0.12     0.08     0.14
75.01 - 78.00       0        0        0     0.11        0      0.1
78.01 - 80.00       0        0     0.11     0.46     0.43     5.19
80.01 - 85.00       0        0     0.42     0.38     0.16     0.52
85.01 - 90.00       0        0        0     1.01     1.59     0.57
90.01 - 95.00       0        0        0     0.03      0.7     0.28
------------------------------------------------------------------
Total:              0     0.04     0.71     2.17     3.07      6.9
------------------------------------------------------------------


LTV - FICO
(ARM-Purchase)  600-619  620-639  640-659  660-679  680-699  700-719   720+
---------------------------------------------------------------------------
0.00 - 65.00       0.03     0.03        0        0        0        0   0.01
65.01 - 70.00      0.11     0.09     0.12     0.01     0.02        0   0.08
70.01 - 75.00      0.18      0.4     0.13     0.02     0.02      0.1   0.15
75.01 - 78.00      0.09     0.18     0.08     0.17     0.01     0.06   0.22
78.01 - 80.00      5.43     5.57      7.2    13.52     8.56     5.72   8.67
80.01 - 85.00      0.89     0.66     3.14     5.03     3.89     2.29   3.49
85.01 - 90.00      1.71     1.61     0.54     1.46     1.16     1.19   1.85
90.01 - 95.00      0.29     0.15     0.28     0.07      0.1     0.07   0.24
---------------------------------------------------------------------------
Total:             8.72     8.68     11.5    20.29    13.77     9.43  14.71
---------------------------------------------------------------------------


3. LTV - FICO (ARM-Refi No Cashout)



LTV - FICO
(ARM-Refi No
Cashout)       0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719  720+
-----------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00       0     0.17     0.28     0.73     1.37     1.01     0.25     0.82      1.1        0     0.51     0.05  0.31
65.01 - 70.00      0     0.07     0.34     0.83     0.72     0.93      1.2     0.64     0.22     0.24        0     0.43  0.46
70.01 - 75.00      0     0.22     0.72     0.93     0.45     0.77     1.36     0.49     0.62     0.24     0.16     0.16  0.33
75.01 - 78.00      0        0     0.11     0.69     0.07     0.23     0.67     0.27     0.41     0.48     0.26     0.19  0.09
78.01 - 80.00      0        0     0.49     1.69     1.95     3.56     4.93     4.24     4.47     3.83     2.29     0.68  1.28
80.01 - 85.00      0        0      0.8     0.76     1.34     1.32     1.26     3.21     2.58     3.66     1.42        1  0.65
85.01 - 90.00      0        0        0     2.22     2.67     2.52     3.55     3.44     2.94     2.09     1.73     0.89  0.97
90.01 - 95.00      0        0        0        0     0.74     1.19     1.43     0.79     1.13     0.39     0.12     0.83  0.33
-----------------------------------------------------------------------------------------------------------------------------
Total:             0     0.46     2.74     7.86     9.32    11.54    14.64     13.9    13.48    10.95     6.49     4.22  4.42
-----------------------------------------------------------------------------------------------------------------------------




4. LTV - FICO (ARM-Cashout)



LTV - FICO
(ARM-Cashout)  0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719  720+
-----------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00       0        0     0.24     1.19     2.73     1.98     0.43      0.5     0.51     0.33     0.56        0     0
65.01 - 70.00      0     0.57     0.17      0.3     0.39     0.68     0.59     0.67     0.99     0.67        0     0.32     0
70.01 - 75.00      0     0.15     0.11     0.58     0.71     0.98     1.54     0.48     0.63     0.89        0        0     0
75.01 - 78.00      0        0        0        0      0.2        0        0        0        0        0        0        0     0
78.01 - 80.00      0        0     0.48     1.41     0.97      2.4     6.07     4.28      2.5     2.59      3.6        1  0.98
80.01 - 85.00      0        0      0.2     1.37     2.52     2.46     2.23     1.72     3.45     0.91     0.84        2  0.83
85.01 - 90.00      0        0        0     1.68     2.76     2.15     6.95     6.63     5.38     2.11     1.62     0.68     1
90.01 - 95.00      0        0        0        0     0.65     1.13     1.14     0.81        0     0.14      0.1        0   0.2
-----------------------------------------------------------------------------------------------------------------------------
Total:             0     0.72     1.21     6.52    10.92    11.78    18.94    15.08    13.45     7.62     6.72     4.01  3.01
-----------------------------------------------------------------------------------------------------------------------------


5. LTV - FICO (FRM-Purchase)



LTV - FICO
(FRM-Purchase)  0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719   720+
-------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00        0     0.15        0        0        0        0        0     0.11        0        0        0     0.18      0
65.01 - 70.00       0        0        0        0     0.89        0        0        0     0.28        0        0        0      0
70.01 - 75.00       0        0     0.13        0        0     0.31     1.14        0      0.1     0.59     0.21        0      0
75.01 - 78.00       0        0        0        0        0     0.28     0.13     0.22     0.12     0.11     0.25        0      0
78.01 - 80.00       0        0        0     0.59        0     3.65     3.88     4.74     5.42     4.89     2.59     0.97   1.95
80.01 - 85.00       0        0        0      0.3        0     0.33     0.57     1.14     1.11     0.54        0        0    0.8
85.01 - 90.00       0        0        0     0.86     0.25        0     0.26     0.31     0.47      1.3     1.12        0   0.04
90.01 - 95.00       0        0        0        0      0.6     0.15        0     0.11        0      0.5      0.5     0.61   0.83
95.01 - 100.00      0        0        0        0        0        0        0        0        0        0    20.22    12.81   20.4
-------------------------------------------------------------------------------------------------------------------------------
Total:              0     0.15     0.13     1.74     1.74     4.72     5.97     6.64     7.49     7.94    24.89    14.56  24.02
-------------------------------------------------------------------------------------------------------------------------------


6. LTV - FICO (FRM-Refi No Cashout)



LTV - FICO (FRM
-Refi No Cashout)  0-499  500-519  520-539  540-559  560-579  580-599
---------------------------------------------------------------------
0.00 - 65.00           0        0        0     0.99        0     4.06
65.01 - 70.00          0        0        0     1.11        0     1.75
70.01 - 75.00          0        0        0     1.36     0.19        0
75.01 - 78.00          0        0        0     0.46     0.21        0
78.01 - 80.00          0        0        0        0     0.38     5.81
80.01 - 85.00          0        0     0.41     1.52     0.36     4.21
85.01 - 90.00          0        0        0     0.35        0        0
90.01 - 95.00          0        0        0        0        0     0.87
95.01 - 100.00         0        0        0        0        0        0
---------------------------------------------------------------------
Total:                 0        0     0.41      5.8     1.15     16.7
---------------------------------------------------------------------


LTV - FICO(FRM
-Refi No Cashout)  600-619  620-639  640-659  660-679  680-699  700-719  720+
-----------------------------------------------------------------------------
0.00 - 65.00          0.25     0.18     0.37     1.37     1.58        0     0
65.01 - 70.00         1.45     1.85        0        0        0        0     0
70.01 - 75.00         2.85     1.44     0.18        0        0     0.57     0
75.01 - 78.00         0.25     0.24     0.64     0.95     0.75        0     0
78.01 - 80.00         5.15     2.75     9.12     3.97     2.22     2.17     0
80.01 - 85.00         1.78     2.19     4.91     2.14        0     0.19  1.67
85.01 - 90.00         4.46     1.51     3.09     0.58     1.61     2.36  0.33
90.01 - 95.00         0.47     0.28      0.6        0     0.95     0.19     0
95.01 - 100.00           0        0        0        0      2.9     2.33  1.09
-----------------------------------------------------------------------------
Total:               16.65    10.44    18.91     9.01    10.01     7.83  3.09
-----------------------------------------------------------------------------




7. LTV - FICO (FRM-Cash Out)



LTV - FICO
(FRM- Cash Out)  0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719  720+
-------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00         0        0        0     0.61        0     1.66     0.94     6.98      0.7     5.12        0        0     0
65.01 - 70.00        0        0        0        0     1.92     2.09        0        0     2.63        0        0        0     0
70.01 - 75.00        0        0        0        0     0.89        0     2.65        0     2.92        0        0        0     0
75.01 - 78.00        0        0        0        0        0        0        0        0        0        0        0        0  0.76
78.01 - 80.00        0        0        0     3.82     3.77     4.77     16.5        0     8.34        0     1.39     6.37     0
80.01 - 85.00        0        0        0        0        0        0        0        0     3.95     1.14        0        0     0
85.01 - 90.00        0        0        0        0      1.1        0        0     1.96     4.81     2.96        0        0     0
90.01 - 95.00        0        0        0        0        0        0        0        0        0        0      0.2     0.68     0
95.01 - 100.00       0        0        0        0        0        0        0        0        0        0     3.83     1.45  3.11
-------------------------------------------------------------------------------------------------------------------------------
Total:               0        0        0     4.43     7.68     8.51    20.09     8.94    23.36     9.22     5.41      8.5  3.87
-------------------------------------------------------------------------------------------------------------------------------


8. LTV - FICO (ARM-Owner Occupied)



LTV - FICO
(ARM-Owner
Occupied)      0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719   720+
------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00       0     0.05     0.15     0.35     0.69     0.53     0.12     0.29     0.34     0.03      0.1     0.01   0.09
65.01 - 70.00      0     0.08     0.12      0.3      0.3     0.37     0.41     0.25     0.23     0.15     0.01     0.13   0.09
70.01 - 75.00      0     0.11     0.31     0.41     0.26     0.42      0.6     0.45     0.32     0.12     0.06     0.08   0.13
75.01 - 78.00      0        0     0.03     0.25     0.04     0.13     0.26     0.19     0.18     0.14     0.09     0.09   0.16
78.01 - 80.00      0        0     0.27     0.92     0.92     4.54      5.4     5.01     5.86     9.48     6.08     3.71   5.71
80.01 - 85.00      0        0     0.53      0.6     0.74     0.92     1.15     1.57     3.04     4.34     2.89     1.93   2.44
85.01 - 90.00      0        0        0     1.48     2.08     1.34     2.84     2.71     1.73     1.76     1.41     1.08   1.53
90.01 - 95.00      0        0        0     0.02     0.73     0.66     0.74     0.41     0.53     0.18     0.11      0.3   0.27
-------------------------------------------------------------------------------------------------------------------------------
Total:             0     0.24     1.41     4.32     5.76     8.92    11.53    10.88    12.22    16.19    10.76     7.34  10.43
-------------------------------------------------------------------------------------------------------------------------------


9. LTV - FICO (ARM-Second Home)

10. LTV - FICO (ARM-Investment Property)



LTV - FICO
(ARM-
Investment
Property)      0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719   720+
------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00       0        0        0     0.93     1.25     0.24     0.48     1.16      1.7        0     4.13        0   0.39
65.01 - 70.00      0        0        0        0        0     0.51     2.95     2.38     0.41        0        0     1.18   3.58
70.01 - 75.00      0        0        0     0.32        0        0     2.82        0     0.66     2.14        0     1.24   2.42
75.01 - 78.00      0        0        0     1.08        0        0        0     0.24        0     4.29        0        0      0
78.01 - 80.00      0        0        0     0.93     1.46     0.35     3.34     6.53     8.34    12.36     10.4     5.01   5.69
80.01 - 85.00      0        0        0        0     0.97     2.04     0.37        0     1.69        0     1.62        0   0.36
85.01 - 90.00      0        0        0        0        0        0        0        0     1.74        0        0        0   0.35
-------------------------------------------------------------------------------------------------------------------------------
Total:             0        0        0     3.25     3.67     3.14     9.96    10.31    14.53    18.78    16.14     7.43  12.79
-------------------------------------------------------------------------------------------------------------------------------




11. LTV - FICO (FRM-Owner Occupied)



LTV - FICO
(FRM-Owner
Occupied)       0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719   720+
-------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00        0     0.09        0     0.37        0     1.41     0.13     0.86     0.19        1     0.42     0.11      0
65.01 - 70.00       0        0        0     0.33     0.76     0.77     0.44     0.56     0.47        0        0        0      0
70.01 - 75.00       0        0     0.08     0.41     0.16     0.19     1.64     0.43     0.45     0.36     0.13     0.17      0
75.01 - 78.00       0        0        0     0.14     0.06     0.17     0.15     0.21     0.26     0.29     0.15        0   0.09
78.01 - 80.00       0        0        0     0.79     0.55      4.5     5.79     3.46     6.81     3.99     2.33     1.24   1.18
80.01 - 85.00       0        0     0.12     0.64     0.11     1.47     0.88     1.35      2.6      1.1        0     0.06   0.99
85.01 - 90.00       0        0        0     0.62     0.27        0      1.5     0.87     1.77      1.3     1.16     0.71   0.13
90.01 - 95.00       0        0        0        0     0.36     0.35     0.14     0.15     0.18      0.3     0.61      0.5    0.5
95.01 - 100.00      0        0        0        0        0        0        0        0        0        0    13.52      8.6     13
-------------------------------------------------------------------------------------------------------------------------------
Total:              0     0.09      0.2     3.31     2.28     8.87    10.68     7.89    12.74     8.35    18.32     11.4  15.88
-------------------------------------------------------------------------------------------------------------------------------


12. LTV - FICO (FRM-Second Home)

13. LTV - FICO (FRM-Investment Property)



LTV - FICO
(FRM-
Investment
Property)      0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719   720+
------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00       0        0        0        0        0        0     2.65     3.18        0        0        3        0      0
70.01 - 75.00      0        0        0        0        0        0    10.33        0        0        0        0        0      0
75.01 - 78.00      0        0        0        0        0        0        0        0        0     3.21    11.14        0      0
78.01 - 80.00      0        0        0        0        0        0        0    11.26     8.57     7.77     2.93    35.96      0
-------------------------------------------------------------------------------------------------------------------------------
Total:             0        0        0        0        0        0    12.98    14.44     8.57    10.98    17.07    35.96      0
-------------------------------------------------------------------------------------------------------------------------------


14. LTV - FICO (ARM-Full Doc)



LTV - FICO
(ARM-Full Doc)  0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719   720+
-------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00        0     0.13      0.2      0.9     1.14     0.62     0.33     0.53     0.52     0.06     0.14        0      0
65.01 - 70.00       0     0.19     0.17     0.52      0.3     0.29     0.77     0.03     0.36     0.02     0.02        0      0
70.01 - 75.00       0     0.24     0.28     0.37      0.3     0.79     1.33     0.24     0.31     0.04        0        0   0.06
75.01 - 78.00       0        0     0.08     0.17      0.1      0.3     0.48     0.16     0.25     0.14     0.02        0   0.07
78.01 - 80.00       0        0     0.42     1.71     1.15     8.69     11.1     9.46     6.12     3.03     1.24     0.91   0.74
80.01 - 85.00       0        0     0.95     1.27     1.59     1.32     1.77     1.86      2.3     0.86     0.86     0.13   0.81
85.01 - 90.00       0        0        0     3.24     4.08     2.87     3.65     3.02     2.08     1.19     0.52     0.73   0.64
90.01 - 95.00       0        0        0     0.04      1.8     1.41     1.58     0.83     0.53     0.24     0.11        0   0.13
-------------------------------------------------------------------------------------------------------------------------------
Total:              0     0.56     2.11     8.22    10.47     16.3    21.02    16.13    12.47     5.59     2.92     1.77   2.45
-------------------------------------------------------------------------------------------------------------------------------




15. LTV - FICO (ARM-Limited Documentation)



LTV - FICO
(ARM-Limited
Documentation)  0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719   720+
-------------------------------------------------------------------------------------------------------------------------------
65.01 - 70.00       0        0        0        0    13.47        0        0        0        0        0        0        0      0
78.01 - 80.00       0        0        0        0        0        0        0    28.12    12.55        0    10.57     9.78  10.93
80.01 - 85.00       0        0        0        0        0    12.73        0        0        0        0        0        0      0
85.01 - 90.00       0        0        0        0        0        0        0     1.85        0        0        0        0      0
-------------------------------------------------------------------------------------------------------------------------------
Total:              0        0        0        0    13.47    12.73        0    29.97    12.55        0    10.57     9.78  10.93
-------------------------------------------------------------------------------------------------------------------------------


16. LTV - FICO - ARM - STATED



LTV - FICO -
ARM - STATED    0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719   720+
-------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00        0        0     0.05     0.01     0.41     0.45        0     0.16     0.33     0.02     0.26     0.03   0.19
65.01 - 70.00       0        0      0.1     0.02     0.09      0.5     0.19     0.56     0.18     0.26     0.01     0.31   0.25
70.01 - 75.00       0        0     0.21     0.27     0.26     0.13     0.26     0.52     0.29     0.26     0.08     0.21   0.31
75.01 - 78.00       0        0        0     0.25        0        0        0     0.05     0.14     0.35     0.15     0.17   0.26
78.01 - 80.00       0        0     0.12     0.41     0.87     0.97     0.79      0.5     5.86    15.55    10.48      6.2  10.17
80.01 - 85.00       0        0        0        0        0     0.41     0.44     1.06     3.45     7.19     4.69     3.48   3.79
85.01 - 90.00       0        0        0        0        0        0     1.76     2.51     1.47     1.98     2.18     1.46   2.18
90.01 - 95.00       0        0        0        0        0        0        0        0     0.37     0.13     0.12     0.48   0.41
-------------------------------------------------------------------------------------------------------------------------------
Total:              0        0     0.48     0.96     1.62     2.46     3.44     5.36    12.09    25.73    17.97    12.33  17.56
-------------------------------------------------------------------------------------------------------------------------------


17. LTV - FICO (FRM- Full Doc)



LTV - FICO
(FRM- Full Doc)  0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719  720+
-------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00         0      0.2        0     0.79        0     2.57     0.39     1.76        0     1.31     0.54        0     0
65.01 - 70.00        0        0        0     0.54     0.13     1.13     0.93     0.38     0.36        0        0        0     0
70.01 - 75.00        0        0     0.17     0.88     0.34     0.25     3.95     0.39     0.96     0.27        0     0.12     0
75.01 - 78.00        0        0        0      0.3     0.13     0.36     0.32     0.45     0.15     0.28     0.17        0  0.19
78.01 - 80.00        0        0        0     1.69     0.92     7.06     7.91     6.16     9.76     5.65     2.21     1.46  1.48
80.01 - 85.00        0        0     0.26     1.36     0.23     2.29     1.37     1.13     3.12     1.66        0     0.13  1.45
85.01 - 90.00        0        0        0     1.33     0.59        0     2.87     1.85     2.63     2.06     0.51     0.65  0.21
90.01 - 95.00        0        0        0        0     0.77     0.75      0.3     0.32     0.38        0     0.57        0     0
95.01 - 100.00       0        0        0        0        0        0        0        0        0        0     2.87     1.59  1.73
-------------------------------------------------------------------------------------------------------------------------------
Total:               0      0.2     0.43     6.88     3.12    14.41    18.06    12.44    17.38    11.23     6.86     3.94  5.06
-------------------------------------------------------------------------------------------------------------------------------




18. LTV - FICO (FRM Limited)



LTV - FICO
(FRM Limited)   0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719  720+
------------------------------------------------------------------------------------------------------------------------------
78.01 - 80.00       0        0        0        0        0        0        0        0        0    64.21        0        0     0
95.01 - 100.00      0        0        0        0        0        0        0        0        0        0    17.59        0  18.2
------------------------------------------------------------------------------------------------------------------------------
Total:              0        0        0        0        0        0        0        0        0    64.21    17.59        0  18.2
------------------------------------------------------------------------------------------------------------------------------


19. LTV - FICO (FRM - Stated)



LTV - FICO
(FRM - Stated)  0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719   720+
-------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00        0        0        0        0        0     0.46        0     0.21     0.42     0.85     0.49     0.24      0
65.01 - 70.00       0        0        0        0     0.35     0.53        0     0.83        0        0        0        0      0
70.01 - 75.00       0        0        0        0        0        0        0     0.55        0      0.5     0.28     0.26      0
75.01 - 78.00       0        0        0        0        0        0        0        0        0     0.48     0.66        0      0
78.01 - 80.00       0        0        0        0     0.25     0.87     0.46      0.5     3.06     2.24     2.97     2.21   1.07
80.01 - 85.00       0        0        0        0        0        0     0.51     0.29     2.49        0        0        0   0.67
85.01 - 90.00       0        0        0        0        0        0     0.34        0     0.46     0.73     0.45      0.9   0.06
90.01 - 95.00       0        0        0        0        0        0        0        0        0     0.67     0.75     1.11   1.09
95.01 - 100.00      0        0        0        0        0        0        0        0        0        0    25.85    16.75  26.12
-------------------------------------------------------------------------------------------------------------------------------
Total:              0        0        0        0     0.61     1.86     1.32     2.39     6.43     5.48    31.46    21.46     29
-------------------------------------------------------------------------------------------------------------------------------


20. LTV - FICO (ARM-IO)



LTV - FICO
(ARM-IO)        0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719   720+
-------------------------------------------------------------------------------------------------------------------------------
0.00 - 65.00        0        0        0     0.22      0.7     0.65     0.07     0.33     0.24     0.04     0.29        0   0.12
65.01 - 70.00       0        0        0     0.17     0.39     0.37     0.47      0.3     0.25     0.11        0     0.09   0.24
70.01 - 75.00       0        0        0     0.43     0.16     0.23     0.34     0.52     0.23     0.19     0.03     0.09   0.12
75.01 - 78.00       0        0        0     0.15        0     0.07     0.25     0.24     0.13     0.19     0.12     0.12   0.22
78.01 - 80.00       0        0        0      0.4     0.88     1.29      5.2     5.05     6.45     11.5     7.45     4.39   7.12
80.01 - 85.00       0        0        0     0.15      0.5     0.36     1.03     1.79     4.01      5.7     3.75     2.54   3.22
85.01 - 90.00       0        0        0     0.64     0.92     0.89     2.69     2.65     2.08     1.73     1.72     1.21   1.65
90.01 - 95.00       0        0        0        0        0     0.04      0.6     0.21     0.47     0.14     0.12     0.37   0.18
-------------------------------------------------------------------------------------------------------------------------------
Total:              0        0        0     2.15     3.55      3.9    10.67     11.1    13.87    19.59    13.48     8.82  12.87
-------------------------------------------------------------------------------------------------------------------------------


21. LTV - FICO (Manufacuted Housing)



LTV - FICO
(Manufacuted
Housing)       0-499  500-519  520-539  540-559  560-579  580-599  600-619  620-639  640-659  660-679  680-699  700-719  720+
-----------------------------------------------------------------------------------------------------------------------------
65.01 - 70.00      0        0        0        0        0        0        0      100        0        0        0        0     0
-----------------------------------------------------------------------------------------------------------------------------
Total:             0        0        0        0        0        0        0      100        0        0        0        0     0
-----------------------------------------------------------------------------------------------------------------------------




22. States



States                              Total UPB     ARM Pool %   Fixed Pool %
---------------------------------------------------------------------------
Arizona                           59,721,550.45         91.9            8.1
Arkansas                           1,126,427.17        70.23          29.77
California                       352,965,791.76        91.04           8.96
Colorado                          26,890,143.41        89.88          10.12
Connecticut                          726,457.84          100              0
Delaware                             825,252.97        89.71          10.29
Florida                           64,740,916.39         90.7            9.3
Georgia                           16,463,382.76        83.05          16.95
Idaho                              4,164,168.80        95.61           4.39
Illinois                          70,626,060.82        91.95           8.05
Indiana                            2,528,559.72        87.22          12.78
Iowa                               7,779,731.23        88.42          11.58
Kansas                            10,070,361.44        79.91          20.09
Kentucky                             960,461.60        97.61           2.39
Louisiana                            222,726.59          100              0
Maine                              1,263,456.50        86.65          13.35
Maryland                          21,263,307.20        93.33           6.67
Massachusetts                     24,258,316.77        92.71           7.29
Michigan                          10,481,578.88         93.3            6.7
Minnesota                          9,876,042.32        92.45           7.55
Mississippi                          483,431.34          100              0
Missouri                          17,960,702.98        95.19           4.81
Nebraska                           2,194,950.31        70.38          29.62
Nevada                            12,908,651.20        89.04          10.96
New Hampshire                      4,158,281.90        95.62           4.38
New Jersey                         6,443,533.75        96.74           3.26
New Mexico                         1,825,240.26          100              0
North Carolina                     1,340,139.04        81.17          18.83
North Dakota                          66,462.91          100              0
Ohio                                 459,776.57        54.33          45.67
Oklahoma                           2,059,211.04        93.98           6.02
Oregon                            10,850,796.53        73.23          26.77
Pennsylvania                       3,066,035.35        90.44           9.56
Rhode Island                       3,573,456.83        91.51           8.49
South Carolina                       987,747.14        88.17          11.83
South Dakota                         111,017.17          100              0
Tennessee                          3,928,687.32        72.36          27.64
Texas                             35,300,200.30        67.62          32.38
Utah                               4,648,423.76        92.55           7.45
Vermont                              550,381.47          100              0
Washington                        52,919,979.32        83.93          16.07
Virginia                          19,501,763.33        86.63          13.37
West Virginia                        799,113.44        26.79          73.21
Wisconsin                          2,004,893.48         98.7            1.3
Wyoming                              234,373.97          100              0
---------------------------------------------------------------------------
Total:                           875,331,945.33        89.21          10.79
---------------------------------------------------------------------------


This material is provided to you solely for informational purposes, is intended
for your use only and does not constitute an offer or commitment, a solicitation
of an offer or commitment, or any advice or recommendation, to enter into or
conclude any transaction (whether on the indicative terms shown or otherwise).
This material has been prepared by CSFB based on assumptions and parameters
determined by it in good faith. It is important that you (recipient) understand
that those assumptions and parameters are not the only ones that might
reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.





                     IO Original  Prepayment                 Periodic  Maximum   WA    WA       % of
Loan Type               Term         Term      WAC   Margin     Cap      Rate   FICO   LTV   total pool
-------------------------------------------------------------------------------------------------------
   2/28 LIBOR ARM          0               0  7.815   5.421         1   13.815   628  82.05         6.7
                                           6  7.949   5.873         1   13.949   620  83.24        0.71
                                          12  7.304   5.979         1   13.304   663  83.33        0.55
                                          24  7.418   5.763         1   13.418   615  81.83       16.61
                                          36  7.761   5.922         1   13.761   578     85        0.14
 2/28 LIBOR IO ARM        60               0  7.527   5.529         1   13.527   658  82.34        5.01
                                           6  7.249   5.771         1   13.249   649  80.89        0.15
                                          12  7.409   5.834         1   13.409   673  82.74         1.5
                                          24  6.884   5.771         1   12.884   663  81.95       45.43
                                          36  7.113   5.823         1   13.113   677  82.38        0.21
   30/15 BALLOON           0               0  10.13       0         0        0   714  99.74         1.4
                                          12  10.44       0         0        0   718  99.57        0.05
                                          24   9.91       0         0        0   715  99.58        2.41
                                          36  8.471       0         0        0   678  86.42        0.01
   3/27 LIBOR ARM          0               0  7.817   5.431         1   13.817   620  84.42        2.07
                                           6  8.077   5.883         1   14.077   594   84.3        0.06
                                          12    7.5       6         1     13.5   708     90        0.03
                                          24  7.062   5.758         1   13.062   621  78.84        0.49
                                          36  7.336    5.83         1   13.336   611  81.99        1.42
 3/27 LIBOR IO ARM        60               0  7.461   5.609         1   13.461   655  81.02        2.08
                                          12  6.799   5.657         1   12.799   613  74.45        0.17
                                          24  6.704   5.791         1   12.704   658   79.7        1.87
                                          36  6.917   5.832         1   12.917   662  82.01        2.67
  5/1 TREASURY ARM         0              36  6.684   5.949         1   12.684   652  70.46        0.28
5/1 TREASURY IO ARM       60               0    7.4       6         1     13.4   561  60.61        0.02
                                          24   7.25    6.25         1    13.25   669     85        0.07
                                          36  6.973   6.109         1   12.973   664  81.03        0.99
       Fixed               0               0  7.981       0         0        0   630  78.21        0.76
                                           6  8.199       0         0        0   627  81.46        0.21
                                          12   6.99       0         0        0   581  54.55        0.02
                                          24  7.951       0         0        0   643   82.6        0.17
                                          30   7.45       0         0        0   597     80        0.02
                                          36  7.288       0         0        0   633  78.89        4.67
      Fixed IO            60               0  7.633       0         0        0   673  82.52        0.05
                                          36  6.985       0         0        0   650   80.1        1.02
-------------------------------------------------------------------------------------------------------
                Grand Total:                  7.278   5.111         1   11.734   650   82.4         100
-------------------------------------------------------------------------------------------------------





Fieldstone Mortgage Investment Trust, Series 2005-3 - Stack Price/Yield
FOR INTERNAL DISTRIBUTION ONLY

Settle          11/23/2005
First Payment   12/25/2005

                                        1                  2                  3                  4
                   2A1
Price                                 100                100                100                100
--------------------------------------------------------------------------------------------------
                 Yield              4.197              4.197              4.197              4.197
                   WAL               4.15               2.17               1.45               1.08
              Mod Durn               3.68               2.03               1.38               1.04
Principal Window Begin         12/25/2005         12/25/2005         12/25/2005         12/25/2005
  Principal Window End          7/25/2014          7/25/2010         12/25/2008          2/25/2008
    Principal # Months                104                 56                 37                 27

             LIBOR_1MO              4.051              4.051              4.051              4.051
             LIBOR_6MO              4.376              4.376              4.376              4.376
                Prepay              5 CPR             10 CPR             15 CPR             20 CPR
            No Prepays
 Lockout and Penalties  Exclude Penalties  Exclude Penalties  Exclude Penalties  Exclude Penalties
Prepay Penalty Haircut                  0                  0                  0                  0
   Optional Redemption           10% Call           10% Call           10% Call           10% Call

                                        5                  6                  7                  8
                   2A1
Price                                 100                100                100                100
--------------------------------------------------------------------------------------------------
                 Yield              4.197              4.197              4.197              4.197
                   WAL               0.85               0.70               0.59               0.51
              Mod Durn               0.83               0.68               0.58               0.50
Principal Window Begin         12/25/2005         12/25/2005         12/25/2005         12/25/2005
  Principal Window End          8/25/2007          4/25/2007          2/25/2007         11/25/2006
    Principal # Months                 21                 17                 15                 12

             LIBOR_1MO              4.051              4.051              4.051              4.051
             LIBOR_6MO              4.376              4.376              4.376              4.376
                Prepay             25 CPR             30 CPR             35 CPR             40 CPR
            No Prepays
 Lockout and Penalties  Exclude Penalties  Exclude Penalties  Exclude Penalties  Exclude Penalties
Prepay Penalty Haircut                  0                  0                  0                  0
   Optional Redemption           10% Call           10% Call           10% Call           10% Call

The tables and other statistical analyses (the 'Hypothetical Performance Data')
that you will produce using Intex with the attached information are privileged
and intended solely for use by you (the party to whom CSFB LLC provided the
computer model used to generate them). The Hypothetical Performance Data will be
generated by you using a computer model prepared by CSFB LLC in reliance upon
information furnished by the issuer of the securities and its affiliates, the
accuracy and completeness of which has not been verified by CSFB LLC or any
other person. The computer model that you will use to prepare the Hypothetical
Performance Data was furnished to you solely by CSFB LLC and not by the issuer
of the securities. It may not be (a) used for any purpose other than to make a
preliminary evaluation of the referenced securities or (b) provided by you to
any third party other than your legal, tax, financial and/or accounting advisors
for the purposes of evaluating the Hypothetical Performance Data. You agree that
the Hypothetical Performance Data will be generated by or on behalf of you, and
that neither CSFB LLC nor anyone acting on its behalf has generated or is in any
way responsible for any Hypothetical Performance Data.







Fieldstone Mortgage Investment Trust, Series 2005-3
FOR INTERNAL DISTRIBUTION ONLY



                           1             2              3              4             5              6                7
Prepayment Speed     75% Rabo PPC  100% Rabo PPC  135% Rabo PPC  75% Rabo PPC  100% Rabo PPC  135% Rabo PPC     75% Rabo PPC
Losses                    CDR           CDR            CDR            CDR           CDR            CDR              CDR
Loss Severity             40%           40%            40%            65%           65%            65%              40%
Lag                       12            12              12            12             12             12              12
LIBOR                     FWD           FWD            FWD            FWD           FWD            FWD       Flat for 12,Flat +
                                                                                                               400bps for life
Triggers                 Fail          Fail            Fail          Fail           Fail           Fail            Fail
Optional Redemption   To Maturity   To Maturity    To Maturity    To Maturity   To Maturity    To Maturity      To Maturity

Class M4
WAL                      11.94         9.52            7.31          13.95         11.09           8.56            13.36
Cum Loss                18.97%        16.95%          15.21%        20.89%         18.09%         15.82%          16.19%
CDR Multiple           17.5 CDR      19.0 CDR        21.4 CDR       9.8 CDR       10.7 CDR       12.2 CDR        13.6 CDR

Class M5
WAL                      12.44         10.17           7.63          15.25         11.53           8.57            13.95
Cum Loss                17.67%        15.58%          13.67%        19.61%         16.60%         14.16%          14.79%
CDR Multiple           15.6 CDR      16.8 CDR        18.6 CDR       9.0 CDR       9.6 CDR        10.7 CDR        11.9 CDR

Class M6
WAL                      13.07         10.55           8.12          15.16         12.25           9.06            14.81
Cum Loss                16.40%        14.16%          12.21%        18.11%         15.19%         12.67%          13.45%
CDR Multiple           13.9 CDR      14.7 CDR        16.1 CDR       8.1 CDR       8.6 CDR        9.4 CDR         10.4 CDR


                             8                    9                  10                   11                12
Prepayment Speed        100% Rabo PPC       135% Rabo PPC       75% Rabo PPC        100% Rabo PPC      135% Rabo PPC
Losses                     CDR                   CDR                CDR                  CDR                CDR
Loss Severity              40%                   40%                65%                  65%                65%
Lag                         12                   12                  12                   12                12
LIBOR                Flat for 12,Flat +  Flat for 12,Flat +  Flat for 12,Flat +  Flat for 12,Flat +  Flat for 12,Flat +
                       400bps for life   400bps for life       400bps for life     400bps for life    400bps for life
Triggers                   Fail                 Fail                Fail                 Fail               Fail
Optional Redemption    To Maturity           To Maturity        To Maturity          To Maturity        To Maturity

Class M4
WAL                       10.42                 7.72               15.65                 12.07              8.65
Cum Loss                  14.65%               13.56%              17.45%                15.35%            13.83%
CDR Multiple             15.4 CDR             18.4 CDR            7.7 CDR               8.7 CDR           10.4 CDR

Class M5
WAL                       10.98                 8.08               15.45                 12.18              8.90
Cum Loss                  13.16%               11.97%              15.82%                13.73%            12.20%
CDR Multiple             13.3 CDR             15.7 CDR            6.8 CDR               7.6 CDR            9.0 CDR

Class M6
WAL                       11.60                 8.66               16.75                 12.57              9.25
Cum Loss                  11.71%               10.46%              14.50%                12.18%            10.64%
CDR Multiple             11.4 CDR             13.3 CDR            6.1 CDR               6.6 CDR            7.7 CDR


This information is being provided in response to your specific request for
information. The information has been prepared and furnished to you solely by
CREDIT SUISSE FIRST BOSTON CORPORATION (CSFBC) and not the Issuer of the
Securities or any of its affiliates. The preliminary description of the under-
lying assests has not been independently verified by CSFBC. CSFBC is not acting
as agent for the Issuer or its affiliiates in connection with the proposed
transaction. All information contained herein is preliminary, limited in nature
and subject to completion or amendment. CSFBC makes no representation that the
above referenced seurity will actually perform as described in any scenario. The
above analysis alone is not intended to be a prospectus and any investment
decision with respect to the security should be made by you based solely upon
the information contained in the final prospectus. Under no circumstances shall
the information presented constitute an offer to sell or solicitation of an
offer to by nor shall there be any sale of securities in any jurisdiction in
which such offer, solicitation or sale would be unlawful prior to registration
or qualification under the securities laws of such jurisdiction. The securities
my not be sold nor may an offer to buy be accepted prior to the delivery of a
final prospectus relating to the securites.





                      Forward               Flat for 12, Flat + 400bps for life
        ----------------------------------  -----------------------------------
Period  LIBOR_1MO Vector  LIBOR_6MO Vector  LIBOR_1MO Vector  LIBOR_6MO Vector
------  ----------------  ----------------  ----------------  -----------------
     1      4.0510000         4.3760000           4.051             4.376
     2      4.1868660         4.4582830           4.051             4.376
     3      4.3361820         4.5308430           4.051             4.376
     4      4.4076540         4.5838010           4.051             4.376
     5      4.4496960         4.6238840           4.051             4.376
     6      4.5884650         4.6603390           4.051             4.376
     7      4.5357580         4.6659100           4.051             4.376
     8      4.6142180         4.6846930           4.051             4.376
     9      4.6480160         4.6989510           4.051             4.376
    10      4.6436260         4.7162050           4.051             4.376
    11      4.6642730         4.7426040           4.051             4.376
    12      4.6212550         4.7732850           4.051             4.376
    13      4.6463040         4.8181880           8.051             8.376
    14      4.6981310         4.8645930           8.051             8.376
    15      4.7495520         4.9065170           8.051             8.376
    16      4.7989720         4.9423260           8.051             8.376
    17      4.8447910         4.9703880           8.051             8.376
    18      4.8854110         4.9890680           8.051             8.376
    19      4.9192340         4.9967330           8.051             8.376
    20      4.9446620         4.9922330           8.051             8.376
    21      4.9600960         4.9765090           8.051             8.376
    22      4.9639400         4.9514080           8.051             8.376
    23      4.9545940         4.9192440           8.051             8.376
    24      4.9304620         4.8827920           8.051             8.376
    25      4.8927870         4.8452900           8.051             8.376
    26      4.8522340         4.8099510           8.051             8.376
    27      4.8125420         4.7783700           8.051             8.376
    28      4.7748390         4.7516930           8.051             8.376
    29      4.7402520         4.7310670           8.051             8.376
    30      4.7099060         4.7176410           8.051             8.376
    31      4.6849290         4.7125610           8.051             8.376
    32      4.6664470         4.7165890           8.051             8.376
    33      4.6555870         4.7288530           8.051             8.376
    34      4.6534770         4.7478650           8.051             8.376
    35      4.6612420         4.7718840           8.051             8.376
    36      4.6800120         4.7989190           8.051             8.376
    37      4.7086320         4.8267250           8.051             8.376
    38      4.7386160         4.8531940           8.051             8.376
    39      4.7674550         4.8775990           8.051             8.376
    40      4.7947960         4.8995790           8.051             8.376
    41      4.8202870         4.9187760           8.051             8.376
    42      4.8435760         4.9348290           8.051             8.376
    43      4.8643110         4.9473770           8.051             8.376
    44      4.8821400         4.9562070           8.051             8.376
    45      4.8967110         4.9617130           8.051             8.376
    46      4.9076710         4.9644980           8.051             8.376
    47      4.9146680         4.9652390           8.051             8.376
    48      4.9173510         4.9646840           8.051             8.376





    49      4.9162240         4.9636520           8.051             8.376
    50      4.9145050         4.9628890           8.051             8.376
    51      4.9130840         4.9626020           8.051             8.376
    52      4.9120280         4.9628620           8.051             8.376
    53      4.9114060         4.9637370           8.051             8.376
    54      4.9112860         4.9652980           8.051             8.376
    55      4.9117340         4.9676120           8.051             8.376
    56      4.9128200         4.9707240           8.051             8.376
    57      4.9146110         4.9745700           8.051             8.376
    58      4.9171740         4.9790530           8.051             8.376
    59      4.9205790         4.9840620           8.051             8.376
    60      4.9248910         4.9894800           8.051             8.376
    61      4.9300280         4.9951780           8.051             8.376
    62      4.9354310         5.0010420           8.051             8.376
    63      4.9409590         5.0070560           8.051             8.376
    64      4.9466220         5.0132280           8.051             8.376
    65      4.9524270         5.0195660           8.051             8.376
    66      4.9583830         5.0260790           8.051             8.376
    67      4.9644970         5.0327750           8.051             8.376
    68      4.9707780         5.0396440           8.051             8.376
    69      4.9772350         5.0466090           8.051             8.376
    70      4.9838740         5.0535670           8.051             8.376
    71      4.9907040         5.0604110           8.051             8.376
    72      4.9977330         5.0670290           8.051             8.376
    73      5.0048700         5.0733030           8.051             8.376
    74      5.0117070         5.0791250           8.051             8.376
    75      5.0181240         5.0844530           8.051             8.376
    76      5.0240950         5.0892630           8.051             8.376
    77      5.0295940         5.0935270           8.051             8.376
    78      5.0345970         5.0972220           8.051             8.376
    79      5.0390800         5.1003210           8.051             8.376
    80      5.0430160         5.1028290           8.051             8.376
    81      5.0463820         5.1048790           8.051             8.376
    82      5.0491520         5.1066400           8.051             8.376
    83      5.0513010         5.1082920           8.051             8.376
    84      5.0528040         5.1100220           8.051             8.376
    85      5.0538180         5.1120280           8.051             8.376
    86      5.0550590         5.1144830           8.051             8.376
    87      5.0567300         5.1174440           8.051             8.376
    88      5.0588570         5.1209380           8.051             8.376
    89      5.0614670         5.1249920           8.051             8.376
    90      5.0645860         5.1296330           8.051             8.376
    91      5.0682400         5.1348870           8.051             8.376
    92      5.0724560         5.1407650           8.051             8.376
    93      5.0772580         5.1472090           8.051             8.376
    94      5.0826740         5.1541440           8.051             8.376
    95      5.0887300         5.1614870           8.051             8.376
    96      5.0954520         5.1691530           8.051             8.376
    97      5.1027700         5.1770540           8.051             8.376
    98      5.1103140         5.1851110           8.051             8.376
    99      5.1179930         5.1933120           8.051             8.376





   100      5.1258080         5.2016590           8.051             8.376
   101      5.1337620         5.2101530           8.051             8.376
   102      5.1418570         5.2187980           8.051             8.376
   103      5.1500960         5.2275950           8.051             8.376
   104      5.1584800         5.2365190           8.051             8.376
   105      5.1670130         5.2454250           8.051             8.376
   106      5.1756950         5.2541370           8.051             8.376
   107      5.1845300         5.2624680           8.051             8.376
   108      5.1935200         5.2702290           8.051             8.376
   109      5.2024980         5.2772230           8.051             8.376
   110      5.2107790         5.2832750           8.051             8.376
   111      5.2181630         5.2883210           8.051             8.376
   112      5.2246150         5.2923250           8.051             8.376
   113      5.2301000         5.2952520           8.051             8.376
   114      5.2345830         5.2970650           8.051             8.376
   115      5.2380290         5.2977300           8.051             8.376
   116      5.2404030         5.2972830           8.051             8.376
   117      5.2416710         5.2960550           8.051             8.376
   118      5.2417970         5.2944620           8.051             8.376
   119      5.2407470         5.2929350           8.051             8.376
   120      5.2384860         5.2919190           8.051             8.376
   121      5.2354030         5.2918750           8.051             8.376
   122      5.2331920         5.2932020           8.051             8.376
   123      5.2323190         5.2960240           8.051             8.376
   124      5.2328330         5.3003900           8.051             8.376
   125      5.2347850         5.3063510           8.051             8.376
   126      5.2382230         5.3139580           8.051             8.376
   127      5.2431970         5.3232610           8.051             8.376
   128      5.2497570         5.3342300           8.051             8.376
   129      5.2579510         5.3465080           8.051             8.376
   130      5.2678280         5.3596420           8.051             8.376
   131      5.2794400         5.3731670           8.051             8.376
   132      5.2928340         5.3866010           8.051             8.376
   133      5.3075860         5.3994490           8.051             8.376
   134      5.3218230         5.4112810           8.051             8.376
   135      5.3350420         5.4219790           8.051             8.376
   136      5.3472070         5.4315080           8.051             8.376
   137      5.3582820         5.4398300           8.051             8.376
   138      5.3682300         5.4469080           8.051             8.376
   139      5.3770150         5.4527050           8.051             8.376
   140      5.3846020         5.4572230           8.051             8.376
   141      5.3909540         5.4606270           8.051             8.376
   142      5.3960350         5.4631240           8.051             8.376
   143      5.3998090         5.4649320           8.051             8.376
   144      5.4022400         5.4662720           8.051             8.376
   145      5.4035240         5.4673740           8.051             8.376
   146      5.4045690         5.4684330           8.051             8.376
   147      5.4056070         5.4694910           8.051             8.376
   148      5.4066410         5.4705500           8.051             8.376
   149      5.4076720         5.4716130           8.051             8.376
   150      5.4087030         5.4726820           8.051             8.376





   151      5.4097360         5.4737600           8.051             8.376
   152      5.4107750         5.4748530           8.051             8.376
   153      5.4118210         5.4759880           8.051             8.376
   154      5.4128760         5.4771940           8.051             8.376
   155      5.4139440         5.4785020           8.051             8.376
   156      5.4150260         5.4799440           8.051             8.376
   157      5.4161520         5.4815520           8.051             8.376
   158      5.4174300         5.4833550           8.051             8.376
   159      5.4188940         5.4853640           8.051             8.376
   160      5.4205490         5.4875860           8.051             8.376
   161      5.4224030         5.4900260           8.051             8.376
   162      5.4244610         5.4926930           8.051             8.376
   163      5.4267300         5.4955920           8.051             8.376
   164      5.4292160         5.4987100           8.051             8.376
   165      5.4319270         5.5019510           8.051             8.376
   166      5.4348670         5.5051990           8.051             8.376
   167      5.4380450         5.5083320           8.051             8.376
   168      5.4414660         5.5112270           8.051             8.376
   169      5.4450180         5.5137580           8.051             8.376
   170      5.4482310         5.5158150           8.051             8.376
   171      5.4509770         5.5173690           8.051             8.376
   172      5.4532450         5.5184080           8.051             8.376
   173      5.4550270         5.5189230           8.051             8.376
   174      5.4563110         5.5189010           8.051             8.376
   175      5.4570860         5.5183340           8.051             8.376
   176      5.4573440         5.5172270           8.051             8.376
   177      5.4570720         5.5156510           8.051             8.376
   178      5.4562620         5.5136990           8.051             8.376
   179      5.4549020         5.5114630           8.051             8.376
   180      5.4529830         5.5090380           8.051             8.376
   181      5.4505910         5.5065210           8.051             8.376
   182      5.4481040         5.5039950           8.051             8.376
   183      5.4456210         5.5014800           8.051             8.376
   184      5.4431450         5.4989780           8.051             8.376
   185      5.4406770         5.4964910           8.051             8.376
   186      5.4382210         5.4940220           8.051             8.376
   187      5.4357780         5.4915730           8.051             8.376
   188      5.4333510         5.4891460           8.051             8.376
   189      5.4309430         5.4867450           8.051             8.376
   190      5.4285560         5.4843720           8.051             8.376
   191      5.4261920         5.4820290           8.051             8.376
   192      5.4238540         5.4797190           8.051             8.376
   193      5.4215450         5.4774450           8.051             8.376
   194      5.4192660         5.4752080           8.051             8.376
   195      5.4170210         5.4730110           8.051             8.376
   196      5.4148120         5.4708580           8.051             8.376
   197      5.4126410         5.4687490           8.051             8.376
   198      5.4105100         5.4666890           8.051             8.376
   199      5.4084230         5.4646790           8.051             8.376
   200      5.4063810         5.4627210           8.051             8.376
   201      5.4043870         5.4608190           8.051             8.376





   202      5.4024430         5.4589740           8.051             8.376
   203      5.4005520         5.4571910           8.051             8.376
   204      5.3987160         5.4554710           8.051             8.376
   205      5.3969380         5.4538160           8.051             8.376
   206      5.3952210         5.4522310           8.051             8.376
   207      5.3935670         5.4507160           8.051             8.376
   208      5.3919790         5.4492740           8.051             8.376
   209      5.3904600         5.4479060           8.051             8.376
   210      5.3890120         5.4466140           8.051             8.376
   211      5.3876360         5.4454010           8.051             8.376
   212      5.3863340         5.4442670           8.051             8.376
   213      5.3851050         5.4432180           8.051             8.376
   214      5.3839530         5.4422590           8.051             8.376
   215      5.3828810         5.4413950           8.051             8.376
   216      5.3818900         5.4406310           8.051             8.376
   217      5.3809850         5.4399730           8.051             8.376
   218      5.3801800         5.4394230           8.051             8.376
   219      5.3794780         5.4389760           8.051             8.376
   220      5.3788840         5.4386260           8.051             8.376
   221      5.3783990         5.4383640           8.051             8.376
   222      5.3780260         5.4381830           8.051             8.376
   223      5.3777590         5.4380750           8.051             8.376
   224      5.3775610         5.4380390           8.051             8.376
   225      5.3774230         5.4381080           8.051             8.376
   226      5.3773480         5.4383220           8.051             8.376
   227      5.3773360         5.4387220           8.051             8.376
   228      5.3773910         5.4393510           8.051             8.376
   229      5.3775500         5.4402500           8.051             8.376
   230      5.3779650         5.4414320           8.051             8.376
   231      5.3786790         5.4427870           8.051             8.376
   232      5.3796960         5.4441720           8.051             8.376
   233      5.3810230         5.4454410           8.051             8.376
   234      5.3826650         5.4464470           8.051             8.376
   235      5.3844860         5.4470390           8.051             8.376
   236      5.3859160         5.4471050           8.051             8.376
   237      5.3868050         5.4466920           8.051             8.376
   238      5.3871440         5.4458910           8.051             8.376
   239      5.3869250         5.4447940           8.051             8.376
   240      5.3861390         5.4434920           8.051             8.376
   241      5.3848700         5.4420830           8.051             8.376
   242      5.3834940         5.4406440           8.051             8.376
   243      5.3821060         5.4391940           8.051             8.376
   244      5.3807040         5.4377320           8.051             8.376
   245      5.3792910         5.4362590           8.051             8.376
   246      5.3778670         5.4347760           8.051             8.376
   247      5.3764310         5.4332820           8.051             8.376
   248      5.3749850         5.4317790           8.051             8.376
   249      5.3735280         5.4302660           8.051             8.376
   250      5.3720620         5.4287450           8.051             8.376
   251      5.3705870         5.4272160           8.051             8.376
   252      5.3691030         5.4256780           8.051             8.376





   253      5.3676100         5.4241330           8.051             8.376
   254      5.3661100         5.4225820           8.051             8.376
   255      5.3646020         5.4210240           8.051             8.376
   256      5.3630880         5.4194600           8.051             8.376
   257      5.3615660         5.4178900           8.051             8.376
   258      5.3600390         5.4163160           8.051             8.376
   259      5.3585060         5.4147370           8.051             8.376
   260      5.3569680         5.4131530           8.051             8.376
   261      5.3554250         5.4115660           8.051             8.376
   262      5.3538780         5.4099760           8.051             8.376
   263      5.3523270         5.4083830           8.051             8.376
   264      5.3507730         5.4067880           8.051             8.376
   265      5.3492160         5.4051910           8.051             8.376
   266      5.3476560         5.4035930           8.051             8.376
   267      5.3460940         5.4019940           8.051             8.376
   268      5.3445310         5.4003940           8.051             8.376
   269      5.3429670         5.3987940           8.051             8.376
   270      5.3414020         5.3971950           8.051             8.376
   271      5.3398360         5.3955970           8.051             8.376
   272      5.3382710         5.3940000           8.051             8.376
   273      5.3367070         5.3924050           8.051             8.376
   274      5.3351440         5.3908130           8.051             8.376
   275      5.3335820         5.3892230           8.051             8.376
   276      5.3320230         5.3876370           8.051             8.376
   277      5.3304660         5.3860540           8.051             8.376
   278      5.3289120         5.3844750           8.051             8.376
   279      5.3273610         5.3829020           8.051             8.376
   280      5.3258150         5.3813330           8.051             8.376
   281      5.3242720         5.3797700           8.051             8.376
   282      5.3227350         5.3782120           8.051             8.376
   283      5.3212020         5.3766620           8.051             8.376
   284      5.3196750         5.3751180           8.051             8.376
   285      5.3181550         5.3735820           8.051             8.376
   286      5.3166400         5.3720530           8.051             8.376
   287      5.3151330         5.3705330           8.051             8.376
   288      5.3136340         5.3690220           8.051             8.376
   289      5.3121420         5.3675200           8.051             8.376
   290      5.3106590         5.3660270           8.051             8.376
   291      5.3091840         5.3645450           8.051             8.376
   292      5.3077190         5.3630740           8.051             8.376
   293      5.3062640         5.3616140           8.051             8.376
   294      5.3048180         5.3601650           8.051             8.376
   295      5.3033840         5.3587280           8.051             8.376
   296      5.3019600         5.3573040           8.051             8.376
   297      5.3005480         5.3558930           8.051             8.376
   298      5.2991480         5.3544950           8.051             8.376
   299      5.2977610         5.3531110           8.051             8.376
   300      5.2963860         5.3517410           8.051             8.376
   301      5.2950250         5.3503860           8.051             8.376
   302      5.2936770         5.3490470           8.051             8.376
   303      5.2923440         5.3477230           8.051             8.376





   304      5.2910250         5.3464150           8.051             8.376
   305      5.2897220         5.3451240           8.051             8.376
   306      5.2884340         5.3438500           8.051             8.376
   307      5.2871620         5.3425940           8.051             8.376
   308      5.2859070         5.3413560           8.051             8.376
   309      5.2846680         5.3401360           8.051             8.376
   310      5.2834470         5.3389350           8.051             8.376
   311      5.2822440         5.3377540           8.051             8.376
   312      5.2810600         5.3365920           8.051             8.376
   313      5.2798940         5.3354510           8.051             8.376
   314      5.2787470         5.3343310           8.051             8.376
   315      5.2776200         5.3332310           8.051             8.376
   316      5.2765130         5.3321540           8.051             8.376
   317      5.2754270         5.3310990           8.051             8.376
   318      5.2743610         5.3300660           8.051             8.376
   319      5.2733170         5.3290570           8.051             8.376
   320      5.2722950         5.3280710           8.051             8.376
   321      5.2712960         5.3271090           8.051             8.376
   322      5.2703190         5.3261710           8.051             8.376
   323      5.2693650         5.3252590           8.051             8.376
   324      5.2684360         5.3243720           8.051             8.376
   325      5.2675300         5.3235110           8.051             8.376
   326      5.2666490         5.3226770           8.051             8.376
   327      5.2657930         5.3218690           8.051             8.376
   328      5.2649630         5.3210880           8.051             8.376
   329      5.2641590         5.3203350           8.051             8.376
   330      5.2633820         5.3196110           8.051             8.376
   331      5.2626310         5.3189140           8.051             8.376
   332      5.2619080         5.3182460           8.051             8.376
   333      5.2612110         5.3176080           8.051             8.376
   334      5.2605430         5.3169990           8.051             8.376
   335      5.2599030         5.3164220           8.051             8.376
   336      5.2592920         5.3158770           8.051             8.376
   337      5.2587100         5.3153650           8.051             8.376
   338      5.2581600         5.3148850           8.051             8.376
   339      5.2576420         5.3144380           8.051             8.376
   340      5.2571560         5.3140240           8.051             8.376
   341      5.2567030         5.3136400           8.051             8.376
   342      5.2562830         5.3132870           8.051             8.376
   343      5.2558960         5.3129630           8.051             8.376
   344      5.2555380         5.3126690           8.051             8.376
   345      5.2552070         5.3124090           8.051             8.376
   346      5.2549030         5.3121870           8.051             8.376
   347      5.2546290         5.3120100           8.051             8.376
   348      5.2543830         5.3118820           8.051             8.376
   349      5.2541700         5.3118090           8.051             8.376
   350      5.2540100         5.3117910           8.051             8.376
   351      5.2539070         5.3118170           8.051             8.376
   352      5.2538630         5.3118680           8.051             8.376
   353      5.2538770         5.3119270           8.051             8.376
   354      5.2539510         5.3119780           8.051             8.376





   355      5.2540680         5.3120010           8.051             8.376
   356      5.2541600         5.3120010           8.051             8.376
   357      5.2542080         5.3120010           8.051             8.376
   358      5.2542130         5.3120010           8.051             8.376
   359      5.2541730         5.3120010           8.051             8.376
   360      5.2540890         5.3120010           8.051             8.376




** Prepay Vectors capped at 90% CPR
Rabo_ARM Rabo_FRM


 1            4             4
 2   6.09090909   5.727272727
 3   8.18181818   7.454545455
 4   10.2727273   9.181818182
 5   12.3636364   10.90909091
 6   14.4545455   12.63636364
 7   16.5454546   14.36363636
 8   18.6363636   16.09090909
 9   20.7272727   17.81818182
10   22.8181818   19.54545455
11   24.9090909   21.27272727
12           27            23
13           27            23
14           27            23
15           27            23
16           27            23
17           27            23
18           27            23
19           27            23
20           27            23
21           27            23
22           27            23
23           50            23
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355   27   23
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359   27   23
360   27   23





Fieldstone Mortgage Investment Trust, Series 2005-3

Assumptions
50% Loss Severity
12 Month Delay
Triggers Failing
Run to maturity
Defaults are in addition to prepayments
Run at pricing speed
Break is before first dollar of principal loss

              Fwd LIBOR           Fwd LIBOR + 200
        --------------------   --------------------
        CDR Break   Cum Loss   CDR Break   Cum Loss
        ---------   --------   ---------   --------
M3        17.21      18.07%      15.62      16.81%
M4        15.27      16.51%      13.73      15.22%
M5        13.49      15.01%      11.99      13.67%

This information is being provided in response to your specific request for
information. The information has been prepared and furnished to you solely by
CREDIT SUISSE FIRST BOSTON CORPORATION (CSFBC) and not the Issuer of the
Securities or any of its affiliates. The preliminary description of the under-
lying assests has not been independently verified by CSFBC. CSFBC is not acting
as agent for the Issuer or its affiliiates in connection with the proposed
transaction. All information contained herein is preliminary, limited in nature
and subject to completion or amendment. CSFBC makes no representation that the
above referenced seurity will actually perform as described in any scenario. The
above analysis alone is not intended to be a prospectus and any investment
decision with respect to the security should be made by you based solely upon
the information contained in the final prospectus. Under no circumstances shall
the information presented constitute an offer to sell or solicitation of an
offer to by nor shall there be any sale of securities in any jurisdiction in
which such offer, solicitation or sale would be unlawful prior to registration
or qualification under the securities laws of such jurisdiction. The securities
my not be sold nor may an offer to buy be accepted prior to the delivery of a
final prospectus relating to the securites.




Fieldstone Mortgage Investment Trust, Series 2005-3

Assumptions
40% Loss Severity
12 Month Delay
Triggers Failing
100% Advancing
Run to maturity
Defaults are in addition to prepayments
Run at pricing speed
Break is before first dollar of principal loss

           Fwd LIBOR           Fwd LIBOR + 100        Fwd LIBOR + 200
------------------------------------------------------------------------
     CDR Break   Cum Loss   CDR Break   Cum Loss   CDR Break   Cum Loss
M7       13.03      11.68%      12.21      11.10%      11.25      10.39%
M8       11.36      10.47%      10.57       9.88%       9.65       9.16%
M9       10.07       9.49%       9.35       8.92%       8.49       8.23%
------------------------------------------------------------------------

This information is being provided in response to your specific request for
information. The information has been prepared and furnished to you solely by
CREDIT SUISSE FIRST BOSTON CORPORATION (CSFBC) and not the Issuer of the
Securities or any of its affiliates. The preliminary description of the under-
lying assests has not been independently verified by CSFBC. CSFBC is not acting
as agent for the Issuer or its affiliiates in connection with the proposed
transaction. All information contained herein is preliminary, limited in nature
and subject to completion or amendment. CSFBC makes no representation that the
above referenced seurity will actually perform as described in any scenario. The
above analysis alone is not intended to be a prospectus and any investment
decision with respect to the security should be made by you based solely upon
the information contained in the final prospectus. Under no circumstances shall
the information presented constitute an offer to sell or solicitation of an
offer to by nor shall there be any sale of securities in any jurisdiction in
which such offer, solicitation or sale would be unlawful prior to registration
or qualification under the securities laws of such jurisdiction. The securities
my not be sold nor may an offer to buy be accepted prior to the delivery of a
final prospectus relating to the securites.






Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
4,402 records

Table 1



                                                        Percent
                               Total         Average       of      Wtd     Wtd     Wtd
                              Current        Current     Total     Avg     Avg     Avg
FICO        LTV   Count       Balance        Balance    Balance    GWAC    DTI     LTV    % SFD
-----------------------------------------------------------------------------------------------
500 - 524   >65%     24     4,026,941.24   167,789.22      0.46   8.845   44.22   75.95   46.39
525 - 549   >65%    115    17,186,334.28   149,446.39      1.96   8.526   40.11   81.99   75.21
550 - 574   >65%    311    55,600,316.91   178,779.15      6.35   7.999   41.56   83.95   75.16
575 - 599   >70     447    75,902,628.87   169,804.54      8.67   7.407   41.19   83.25   76.81
600 - 624   >70     590   118,493,551.15   200,836.53     13.54   7.199   40.57   83.13   66.73
625 - 649   >70     565   118,287,161.87   209,357.81     13.51   7.118   41.05    83.3   68.45
650 - 674   >80%    187    57,361,534.82   306,746.18      6.55   7.052   43.08    86.7   64.31
675 - 699   >80%    379    61,014,983.27   160,989.40      6.97    7.59   43.34   89.54   68.45
700 - 724   >80%    263    40,605,790.23   154,394.64      4.64   7.624   43.71   90.35   68.16
725 - 749   >85%    122    13,581,032.73   111,319.94      1.55    8.28    43.5   94.34   65.34
750 - 774   >85%     58     6,299,792.27   108,617.11      0.72   8.483   39.84   94.89   70.79
775 - 799   >85%     36     2,564,625.79    71,239.61      0.29   9.077   40.59   97.19   64.38
  800 >=    >85%      4     1,086,591.90   271,647.98      0.12   7.019   40.32   90.57    67.7
                                                          65.33



                      %       %        %         %                                    Wtd
                    Owner    Full   Reduced   Stated                                  Avg
FICO         %PUD    OCC     Doc      Doc       Doc     %IO     %CA    %NY    %FL    FICO
-----------------------------------------------------------------------------------------
500 - 524   35.61     100    87.8         0        0       0   18.52     0     6.8    517
525 - 549   21.88   99.48   75.04         0    13.75       0    3.46     0   17.36    539
550 - 574   18.65   98.57   71.68         0    14.21   40.27   21.33     0    8.78    562
575 - 599   14.77   99.22   77.28      0.57     9.25    23.7   20.08     0    9.48    588
600 - 624      23   98.44   69.98      0.33    16.76   59.54   29.35     0    6.71    612
625 - 649   19.38   97.84   50.74      0.54    35.06   67.19   33.79     0    7.69    638
650 - 674   19.25      99   29.58         0    64.57   78.56   50.87     0    6.91    663
675 - 699   11.32   99.45    12.7      0.15    82.87   66.17   59.23     0    3.68    686
700 - 724   10.56     100   10.12         0    88.55   62.92    68.8     0    4.51    711
725 - 749   10.19     100    11.6      0.42    85.38   44.24   60.12     0    7.13    736
750 - 774   10.85   98.86    8.95      0.57    80.32   26.93   46.64     0    5.57    758
775 - 799   22.16     100    7.76         0    92.24    7.94   35.78     0    9.72    783
  800 >=     32.3     100   42.48         0    57.52   84.07   89.82     0       0    806



Table 2



                                                             Percent
                                    Total         Average       of      Wtd     Wtd     Wtd
                                   Current        Current     Total     Avg     Avg     Avg
LTV              DTI    Count      Balance        Balance    Balance    GWAC    DTI     LTV    % SFD
----------------------------------------------------------------------------------------------------
60.00 - 64.99   >= 50       9    1,779,449.07   197,716.56       0.2   7.298   53.38   62.36   62.85
65.00 - 69.99   >= 50       2      382,645.04   191,322.52      0.04   7.947   52.59   66.01   50.08
70.00 - 74.99   >= 50      15    3,577,447.48   238,496.50      0.41   7.103      53   71.96   50.79
75.00 - 79.99   >= 50      25    4,865,740.11   194,629.60      0.56    7.38    52.1   77.57   58.37
80.00 - 84.99   >= 50      92   20,513,594.69   222,973.86      2.34   6.964   52.61   80.54   63.43
85.00 - 89.99   >= 50      31    7,778,199.80   250,909.67      0.89   7.334    52.7    85.2   80.06
90.00 - 94.99   >= 50      19    4,918,003.08   258,842.27      0.56   7.144   52.08   90.27   58.08
95.00 - 99.99   >= 50       9    1,982,601.04   220,289.00      0.23   7.821   53.17   95.04   65.67
>= 100          >= 50       9      357,287.96    39,698.66      0.04   9.608   52.14     100   52.57
                          211



                          %       %        %         %                                    Wtd
                        Owner    Full   Reduced   Stated                                  Avg
LTV              %PUD    OCC     Doc      Doc       Doc     %IO     %CA    %NY    %FL    FICO
---------------------------------------------------------------------------------------------
60.00 - 64.99    8.43     100   61.66         0        0   43.55   43.55     0       0    569
65.00 - 69.99       0   49.92     100         0        0   49.92   49.92     0   50.08    552
70.00 - 74.99   20.88   88.39   67.14         0        0   69.34   59.36     0       0    611
75.00 - 79.99   32.91   86.23   84.77         0     7.68   58.08   19.09     0    5.06    602
80.00 - 84.99   22.96   98.77   83.65         0     6.26    50.7   32.25     0    5.59    622
85.00 - 89.99   12.76     100   86.48         0    10.49   54.04    48.9     0    6.19    618
90.00 - 94.99   10.83     100   95.28         0     3.59   53.72   48.24     0    8.42    634
95.00 - 99.99   24.51     100   68.28         0      2.4   19.89       0     0      10    608
>= 100          29.53     100   86.18         0        0       0   10.74     0   22.87    711



Table 3



                                                                       Percent
                                              Total         Average       of      Wtd     Wtd     Wtd
                                             Current        Current     Total     Avg     Avg     Avg
                                 Count       Balance        Balance    Balance    GWAC    DTI     LTV    % SFD
--------------------------------------------------------------------------------------------------------------
DTI 20.00 24.99 and FICO < 525       1        49,978.12    49,978.12      0.01   10.05   21.77   33.11     100
DTI 25.00 29.99 and FICO < 550      12     1,387,844.17   115,653.68      0.16   8.769   28.31   81.55   58.58
DTI 30.00 34.99 and FICO < 575      57     9,007,105.02   158,019.39      1.03   8.201   32.64   78.77   68.71
DTI 35.00 39.99 and FICO < 600     165    24,875,428.07   150,760.17      2.84   7.746    37.9    79.1   76.02
DTI 40.00 44.99 and FICO < 625     323    61,197,942.92   189,467.32      6.99   7.491    42.6   81.74   70.74
DTI 45.00 49.99 and FICO < 650     699   142,143,841.82   203,353.14     16.24   7.326   47.85   82.07   70.04
DTI 50.00 54.99 and FICO < 675     191    41,691,494.16   218,280.07      4.76   7.206   52.63   78.68   67.39
DTI >= 55.00 and FICO < 700          1       264,000.00   264,000.00      0.03    9.15      55   77.65     100



                                           %                %         %                                   Wtd
                                         Owner   %Full   Reduced   Stated                                 Avg
                                  %PUD    OCC     Doc      Doc       Doc     %IO     %CA    %NY    %FL   FICO
-------------------------------------------------------------------------------------------------------------
DTI 20.00 24.99 and FICO < 525       0     100     100         0        0       0       0     0      0    507
DTI 25.00 29.99 and FICO < 550   41.42     100   59.91         0    14.64       0       0     0     48    533
DTI 30.00 34.99 and FICO < 575   20.11   97.78   79.25         0    13.65    31.4   15.89     0   5.28    555
DTI 35.00 39.99 and FICO < 600   18.81   99.23    77.5         0     12.3   26.18   15.18     0    9.6    571
DTI 40.00 44.99 and FICO < 625   22.03   98.93    70.2      0.75    20.46   43.91   23.51     0     12    591
DTI 45.00 49.99 and FICO < 650   19.89    98.8   67.28      0.13    24.75   54.87   35.61     0   7.63    605
DTI 50.00 54.99 and FICO < 675   20.03   96.96   85.24         0     4.13   45.87   35.49     0   5.55    601
DTI >= 55.00 and FICO < 700          0     100       0         0        0     100       0     0      0    553




Table 4 Documentation (Stated and Limited)



                                                  Percent
                         Total         Average       of      Avg     Wtd     Wtd
                        Current        Current     Total     Wtd     Avg     Avg
FICO        Count       Balance        Balance    Balance    GWAC    DTI     LTV    % SFD
-----------------------------------------------------------------------------------------
500 - 524       1       159,903.52   159,903.52      0.02    9.05   40.88      65       0
525 - 549      17     2,472,199.58   145,423.50      0.28   9.109   38.18    74.2   87.97
550 - 574      39     9,587,512.43   245,833.65       1.1   8.043   42.47   72.69   66.61
575 - 599      51    12,294,068.49   241,060.17       1.4   7.773   41.05   74.17   90.57
600 - 624      92    22,545,816.39   245,063.22      2.58   7.837    41.2   82.89   68.71
625 - 649     164    45,987,766.51   280,413.21      5.25   7.409   42.32   82.44   75.15
650 - 674     372   103,125,729.61   277,219.70     11.78   7.109   43.04    81.7   65.43
675 - 699     560   114,436,228.44   204,350.41     13.07    7.28   43.12   83.85   63.55
700 - 724     381    73,369,212.85   192,570.11      8.38   7.264   43.25    84.5   68.96
725 - 749     204    40,033,562.02   196,242.95      4.57   7.212   43.01   84.65   67.07
750 - 774      97    19,259,923.19   198,555.91       2.2   7.415   43.46   84.47   67.35
775 - 799      63    10,239,800.78   162,536.52      1.17   7.296    42.4   84.09    72.9
  >= 800        3     1,368,975.90   456,325.30      0.16   6.669   44.36   85.02   45.65



                       %      %        %         %                                    Wtd
                     Owner   Full   Reduced   Stated                                  Avg
FICO         %PUD     OCC     Doc     Doc       Doc     %IO     %CA    %NY    %FL    FICO
-----------------------------------------------------------------------------------------
500 - 524     100      100      0         0      100       0       0     0       0    520
525 - 549    4.91      100      0         0      100       0   19.12     0    8.22    536
550 - 574   22.52    97.31      0         0      100   58.01   51.56     0   11.94    564
575 - 599    3.92    98.74      0      7.25    92.75   55.63   41.46     0    16.1    588
600 - 624   21.33    99.06      0      1.71    98.29   56.98   43.39     0   12.85    614
625 - 649   13.09     95.9      0      1.38    98.62   74.47   51.94     0    9.75    640
650 - 674   17.66    96.68      0      0.73    99.27   79.39   53.24     0    7.33    664
675 - 699   16.61    96.97      0      0.39    99.61   72.33    57.1     0    6.91    686
700 - 724   10.31    98.01      0      0.45    99.55   69.97   62.42     0    4.86    711
725 - 749   11.62    96.78      0      0.71    99.29   72.54   59.77     0    4.58    735
750 - 774   19.98    98.08      0      0.93    99.07   71.11   51.06     0   11.59    759
775 - 799   10.83      100      0         0      100   65.26   54.91     0    5.72    784
  >= 800    54.35      100      0         0      100   95.44     100     0       0    804


Table 5 IO LOANS



                                                       Percent
                              Total         Average       of      Wtd     Wtd     Wtd
                             Current        Current     Total     Avg     Avg     Avg
FICO             Count       Balance        Balance    Balance    GWAC    DTI     LTV    % SFD
----------------------------------------------------------------------------------------------
FICO 550 - 574     111    26,756,471.62   241,049.29      3.06   7.695   43.61   77.13   72.36
FICO 575 - 599     100    24,762,965.37   247,629.65      2.83   7.339   41.52   76.84   80.14
FICO 600 - 624     299    75,460,506.27   252,376.28      8.62   7.051   40.49   81.98   67.38
FICO 625 - 649     319    83,368,843.63   261,344.34      9.52   7.022   41.83   82.55   67.55
FICO 650 - 674     387   113,137,138.66   292,344.03     12.93   6.922   43.38   82.28    65.5
FICO 675 - 699     315    96,789,008.40   307,266.69     11.06   6.862   43.37   82.32   63.88
FICO 700 - 724     181    57,223,516.65   316,152.03      6.54   6.798   44.08   82.83    69.1
FICO 725 - 749      98    32,537,570.74   332,016.03      3.72   6.685   43.18   82.54   71.13
FICO 750 - 774      55    16,988,710.17   308,885.64      1.94    6.92   43.35   82.12   59.88
FICO 775 - 799      27     7,237,005.00   268,037.22      0.83     6.7   42.89    80.3      75
FICO 800 >=          3     1,657,500.00   552,500.00      0.19   6.547   41.45   85.51   33.94


                           %                %        %                                  Wtd
                         Owner   %Full   Reduced   Stated                               Avg
FICO              %PUD    OCC     Doc      Doc       Doc    %IO    %CA    %NY    %FL   FICO
-------------------------------------------------------------------------------------------
FICO 550 - 574   18.79   98.42   67.23         0    20.78   100   45.55     0   4.46    562
FICO 575 - 599   12.05   98.56   59.34      1.85    25.77   100   50.05     0   3.85    587
FICO 600 - 624   21.71   97.97   68.87      0.25    16.78   100   43.63     0   5.22    613
FICO 625 - 649   18.04    97.9   45.14      0.68    40.39   100   46.96     0   6.66    638
FICO 650 - 674   18.56   97.26   24.54      0.67     71.7   100   54.45     0    5.8    663
FICO 675 - 699   15.92   97.05   11.12      0.37    85.15   100   63.77     0   5.15    686
FICO 700 - 724   11.26   97.41     8.9      0.58    89.14   100   69.65     0   3.04    711
FICO 725 - 749    7.25    95.1    8.53         0    89.25   100   71.54     0   1.09    735
FICO 750 - 774   17.98   98.32   14.67         0    80.62   100   61.68     0   9.92    760
FICO 775 - 799    4.48     100    7.66         0    92.34   100   60.85     0      0    785
FICO 800 >=      66.06     100   21.18         0    78.82   100     100     0      0    804


Table 6 Manufactured Housing



                                                   Percent
                            Total       Average       of      Wtd     Wtd     Wtd
                           Current      Current     Total     Avg     Avg     Avg
FICO             Count     Balance      Balance    Balance    GWAC    DTI     LTV    % SFD
------------------------------------------------------------------------------------------
FICO 625 - 649       1   405,000.00   405,000.00      0.05   6.675   42.24   69.83       0



                          %       %       %         %                             Wtd
                        Owner   Full   Reduced   Stated                           Avg
FICO             %PUD    OCC     Doc     Doc       Doc    %IO   %CA   %NY  %FL   FICO
-------------------------------------------------------------------------------------
FICO 625 - 649      0     100      0         0      100   100   100     0    0    637






Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3

--------------------------------------------------------------------------------

Disclaimer:

The above analysis is not intended to be a prospectus and any investment
decision with respect to the security should be made by you based solely upon
all of the information contained in the final prospectus. Under no circumstances
shall the information presented constitute an offer to sell or the solicitation
of an offer to buy nor shall there be any sale of the securities in any
jurisdiction in which such offer, solicitation or sale would be unlawful prior
to registration or qualification under the securities laws of such jurisdiction.
The securities may not be sold nor may an offer to buy be accepted prior to the
delivery of a final prospectus relating to the securities. The above preliminary
description of the underlying assets has been provided by the issuer and has not
been independently verified by Credit Suisse First Boston. All information
described above is preliminary, limited in nature and subject to completion or
amendment. Credit Suisse First Boston makes no representations that the above
referenced security will actually perform as described in any scenario
presented. This memorandum is for informative purposes only. Under no
circumstances is it to be used or considered as an offer to sell, or a
solicitation of an offer to buy, any security. Additional information is
available upon request. Results based on hypothetical projections or past
performance have certain inherent limitations. There is no certainty that the
parameters and assumptions used can be duplicated with actual trades. Any
results shown do not reflect the impact of commissions and/or fees, unless
stated. Financial futures and options are not appropriate for all investors.
Their relative merits should be carefully weighed. Where information has been
obtained from outside sources, it is believed to be reliable but is not
represented to be accurate or complete. This document may not be reproduced in
whole or in part or otherwise made available without our written consent. This
firm may from time to time perform investment banking for, or solicit investment
banking or other business from, any company mentioned. We or our employees may
from time to time have a long or short position in any contract or security
discussed.

--------------------------------------------------------------------------------





Deal Info
----------------------------------
Deal Name              FMIC 2005-3
Bloomberg Ticker:
Asset Class:           Subprime
Issuer:
Trustee:
Lead Manager(s)

Month:
   To Roll             24
   Remaining Term      351
   Remaining IO Term   58

% Interest Only
----------------------------------


Cells in red font are calculations and should be left alone.

Please put averages in gray cells at the bottom of each bucket.



Master Servicer:
----------------
Backup Servicer:
----------------
Primary Servicer (s):    %    Name   Originator (s):    %    Name   FICO by Originator
--------------------------------------------------------------------------------------
                    1                              1
                    2                              2
                    3                              3
                    4                              4
                    5                              5
                    6                              6
                    7                              7
                    8                              8
                    9                              9
                   10                             10


Please fill out complete list of servicers and originators even if it is greater
then ten

                                   FICO BUCKET



                       Deal Size
            -------------------------------    WA Loan
FICO        # Loans      Balance        %      Balance
-------------------------------------------------------
NA                                     0.00%
=<500                                  0.00%
>500 =<520       17    2,186,123.63    0.25% 128,595.51
>520 =<540       72   11,257,942.39    1.29% 156,360.31
>540 =<560      225   39,682,113.21    4.53% 176,364.95
>560 =<580      253   45,267,397.22    5.17% 178,922.52
>580 =<600      466   80,053,478.83    9.15% 171,788.58
>600 =<620      501   98,551,385.98   11.26% 196,709.35
>620 =<640      471   94,238,361.56   10.77% 200,081.45
>640 =<660      468  110,748,470.81   12.65% 236,642.03
>660 =<680      511  129,995,852.14   14.85% 254,395.01
>680 =<700      569  103,424,456.49   11.82% 181,765.30
>700 =<750      661  125,092,617.25   14.29% 189,247.53
>750            188   34,833,745.81    3.98% 185,285.88
-------------------------------------------------------
TOTAL         4,402     875,331,945  100.00% 198,848.69
-------------------------------------------------------


                                  Weighted Average Collateral Characteristics
            ----------------------------------------------------------------------------------------
FICO         WAC   FICO  % LTV  % DTI  Primary  SF/PUD  Refi Cachout  Full Doc  Interest only   MI %
----------------------------------------------------------------------------------------------------
NA
=<500
>500 =<520  9.766   510  68.81  42.62      100   85.11         24.69     87.87              0  0.00%
>520 =<540  8.747   530  77.74  40.73      100   89.11          8.06     64.48              0  0.00%
>540 =<560  8.009   552   80.5  41.37    98.31   93.31         15.53      75.2          32.02  0.00%
>560 =<580  7.857   570  81.36  40.64    98.09   93.21         18.78     73.58          41.17  0.00%
>580 =<600  7.322   590  80.29   41.7    98.98    92.1          12.9     75.24          30.07  0.00%
>600 =<620  7.205   610  81.86  39.98    97.73   88.32          16.3     71.07           56.9  0.00%
>620 =<640  7.166   630  82.25  40.81    97.45   87.88         12.91     58.39          65.58  0.00%
>640 =<660  7.035   650  81.84  42.02    97.33   86.67         12.52     40.92          70.47  0.00%
>660 =<680   7.01   670  82.09  43.04    96.56   81.46          4.11     15.85          76.83  0.00%
>680 =<700  7.323   690  84.24  42.74    96.83   81.62          5.06     11.74          69.84  0.00%
>700 =<750  7.227   721  84.63  42.97     96.7   78.02           4.4      9.86          70.06  0.00%
>750        7.304   770  84.57  42.55    97.92   82.93          2.87     11.98          71.27  0.00%
----------------------------------------------------------------------------------------------------
TOTAL       7.278   650   82.4  41.91    97.42   85.39          9.78     40.23          61.22  0.00%
----------------------------------------------------------------------------------------------------


FICO Mean: 648   Median: 648   Standard Deviation: 59

                                   LTV BUCKET



                       Deal Size
            -------------------------------    WA Loan
LTV         # Loans      Balance        %      Balance
-------------------------------------------------------
=<50             46    6,923,348.74    0.79% 150,507.58
>50 =<55         22    4,081,985.63    0.47% 185,544.80
>55 =<60         42    7,420,580.73    0.85% 176,680.49
>60 =<65         41    9,169,038.61    1.05% 223,635.09
>65 =<70        115   24,021,461.98    2.74% 208,882.28
>70 =<75        197   30,686,609.66    3.51% 155,769.59
>75 =<80       1990  419,828,529.89   47.96% 210,969.11
>80 =<85        580  163,173,535.96   18.64% 281,333.68
>85 =<90        622  144,721,680.73   16.53% 232,671.51
>90 =<95        186   32,795,447.03    3.75% 176,319.61
>95 <100        561   32,509,726.36    3.71%  57,949.60
=>100                                  0.00%
-------------------------------------------------------
TOTAL         4,402     875,331,945  100.00% 198,848.69
-------------------------------------------------------


                                  Weighted Average Collateral Characteristics
            ----------------------------------------------------------------------------------------
LTV          WAC   FICO  % LTV  % DTI  Primary  SF/PUD  Refi Cachout  Full Doc  Interest only   MI %
----------------------------------------------------------------------------------------------------
=<50        7.324   602  42.27   39.1    94.56   71.83         31.68     62.19          52.92  0.00%
>50 =<55    6.935   606  53.09  37.44    98.78   91.36         37.07      53.9          67.56  0.00%
>55 =<60    7.292   598  58.09   40.2    90.86   91.37         31.05     73.37          47.19  0.00%
>60 =<65    7.345   609   62.8  43.08    87.08    82.8         22.24     59.27          48.55  0.00%
>65 =<70    7.426   613  68.93  40.25    90.54   87.15         19.63     40.78          53.88  0.00%
>70 =<75    7.539   608  73.79  40.52    92.91   86.68         17.07     50.12          42.26  0.00%
>75 =<80    6.986   656  79.84  42.15    96.68   86.49          5.89     38.92          65.46  0.00%
>80 =<85    7.071   659  84.75  42.69    99.11   82.22          8.85     29.45           75.4  0.00%
>85 =<90    7.501   636  89.72  40.88     99.7   85.99         16.84     50.81          59.54  0.00%
>90 =<95     8.04   630  94.75  41.77      100   86.26          9.79     66.92          35.41  0.00%
>95 <100    9.991   715  99.98  43.34      100   82.71          2.75      8.27              0  0.00%
=>100
----------------------------------------------------------------------------------------------------
TOTAL       7.278   650   82.4  41.91    97.42   85.39          9.78     40.23          61.22  0.00%
----------------------------------------------------------------------------------------------------



LTV Mean: 83.59   CLTV: 92.35   Standard Deviation: 9.87   LTV =80: 43.13   % Silent Seconds: 56.06
                                                           LTV =100: 3.63   CLTV W/ Silent Seconds: 99.31




                                   DTI BUCKET



                       Deal Size
            -------------------------------    WA Loan
DTI         # Loans      Balance        %      Balance
-------------------------------------------------------
=<20            110   22,587,638.65    2.58% 205,342.17
>20 =<25        121   17,489,451.80    2.00% 144,540.92
>25 =<30        243   38,862,436.35    4.44% 159,927.72
>30 =<35        428   75,620,478.10    8.64% 176,683.36
>35 =<40        710  126,600,533.99   14.46% 178,310.61
>40 =<45        999  200,415,446.82   22.90% 200,616.06
>45 =<50       1566  345,681,777.26   39.49% 220,741.88
>50 =<55        225   48,074,182.36    5.49% 213,663.03
>55 =<60                               0.00%
>60                                    0.00%
-------------------------------------------------------
TOTAL         4,402     875,331,945  100.00% 198,848.69
-------------------------------------------------------


                                  Weighted Average Collateral Characteristics
            ---------------------------------------------------------------------------------
DTI          WAC   FICO  % LTV  % DTI  Primary  SF/PUD  Refi Cachout  Full Doc  Interest only
---------------------------------------------------------------------------------------------
=<20        7.346   626  82.78  14.14    92.47   93.22         20.15     24.38          41.86
>20 =<25    7.552   633  79.54  22.87    93.51    88.8          10.4     39.68          42.55
>25 =<30    7.371   634  81.04  27.79    95.71   92.46         17.81     56.83          48.27
>30 =<35     7.32   640   81.5  32.59    97.61   83.54         11.62     47.09          52.34
>35 =<40    7.323   649  82.09  37.84    98.02   87.83          9.03     41.15          59.08
>40 =<45     7.29   657  82.94  42.66    97.74   85.12          8.48     33.18          63.56
>45 =<50    7.231   658  83.12  47.87    97.86   83.71          8.06     35.46          67.73
>50 =<55    7.176   616  79.12  52.68     96.2   84.57         15.05     85.02          50.67
>55 =<60
>60
---------------------------------------------------------------------------------------------
TOTAL       7.278   650   82.4  41.91    97.42   85.39          9.78     40.23          61.22
---------------------------------------------------------------------------------------------


DTI Mean: 41.18   Median: 43.15   Standard Deviation: 8.46

                                 PURPOSE BUCKET



                             Deal Size
                  -------------------------------    WA Loan
Purpose           # Loans     Balance         %      Balance
-------------------------------------------------------------
Purchase             2819  526,831,575.00   60.19% 186,885.98
Refi (Cash out)       373   85,614,057.42    9.78% 229,528.30
Refi (no Cash)                               0.00%
Refi (Rate Term)     1210  262,886,312.91   30.03% 217,261.42
Consolidation                                0.00%
Other                                        0.00%
-------------------------------------------------------------
TOTAL               4,402     875,331,945  100.00% 198,848.69
-------------------------------------------------------------


                                      Weighted Average Collateral Characteristics
                  ---------------------------------------------------------------------------------
Purpose            WAC   FICO  % LTV  % DTI  Primary  SF/PUD  Refi Cachout  Full Doc  Interest only
---------------------------------------------------------------------------------------------------
Purchase          7.233   666  83.31  42.63    98.54   83.38             0     31.23          63.88
Refi (Cash out)   7.311   624  80.81  40.32    96.45   87.92           100     52.27          57.57
Refi (no Cash)
Refi (Rate Term)  7.359   627   81.1  40.99     95.5   88.61             0     54.37          57.09
Consolidation
Other
---------------------------------------------------------------------------------------------------
TOTAL             7.278   650   82.4  41.91    97.42   85.39          9.78     40.23          61.22
---------------------------------------------------------------------------------------------------


                                OCCUPANCY BUCKET



                            Deal Size
                -------------------------------    WA Loan
Occ Type        # Loans      Balance        %      Balance
-----------------------------------------------------------
Primary (OOC)      4280  852,772,358.52   97.42% 199,245.88
Investment          122   22,559,586.82    2.58% 184,914.65
2nd / Vacation                             0.00%
Rental                                     0.00%
Other                                      0.00%
-----------------------------------------------------------
TOTAL             4,402     875,331,945  100.00% 198,848.69
-----------------------------------------------------------


                                   Weighted Average Collateral Characteristics
                ---------------------------------------------------------------------------------
Occ Type         WAC   FICO  % LTV  % DTI  Primary  SF/PUD  Refi Cachout  Full Doc  Interest only
-------------------------------------------------------------------------------------------------
Primary (OOC)   7.267   650  82.56  41.97            85.84          9.68     40.53          61.28
Investment      7.725   663  76.33  39.61        0    68.4         13.47     29.16           59.3
2nd / Vacation
Rental
Other
-------------------------------------------------------------------------------------------------
TOTAL           7.278   650   82.4  41.91    97.42   85.39          9.78     40.23          61.22
-------------------------------------------------------------------------------------------------


Investment LTV = 80: 1.24

                              DOCUMENTATION BUCKET



                           Deal Size
                -------------------------------    WA Loan
Doc Type        # Loans      Balance        %      Balance
-----------------------------------------------------------
Full               2089  352,187,174.19   40.23% 168,591.28
Alternative                                0.00%
Limited              17    3,911,493.95    0.45% 230,087.88
Stated             2027  450,969,205.76   51.52% 222,481.11
No Ratio                                   0.00%
NINA                                       0.00%
No Doc                                     0.00%
Other               269   68,264,071.43    7.80% 253,769.78
-----------------------------------------------------------
TOTAL             4,402     875,331,945  100.00% 198,848.69
-----------------------------------------------------------


                                 Weighted Average Collateral Characteristics
              ---------------------------------------------------------------------------------
Doc Type       WAC   FICO  % LTV  % DTI  Primary  SF/PUD  Refi Cachout  Full Doc  Interest only
-----------------------------------------------------------------------------------------------
Full          7.232   616  81.82  42.18    98.13   89.15         12.71       100          48.86
Alternative
Limited       7.254   653  80.47  37.56      100    68.6             0         0          68.08
Stated        7.318   681  82.85  42.89    97.23   82.92          6.74         0          71.74
No Ratio
NINA
No Doc
Other         7.255   622  82.57  34.32    94.92   83.31         15.36         0          55.12
-----------------------------------------------------------------------------------------------
TOTAL         7.278   650   82.4  41.91    97.42   85.39          9.78     40.23          61.22
-----------------------------------------------------------------------------------------------




                                 PROPERTY BUCKET



                            Deal Size
                ---------------------------------     WA Loan
Property Type   # Loans       Balance         %       Balance
--------------------------------------------------------------
Single Family      3095   597,808,579.12    68.30%  193,153.01
PUD                 718   149,678,982.75    17.10%  208,466.55
2-4 Unit            228    63,479,664.08     7.25%  278,419.58
Townhouse            16     2,421,350.74     0.28%  151,334.42
Condo               344    61,538,368.64     7.03%  178,890.61
MH                    1       405,000.00     0.05%  405,000.00
Other                                        0.00%
--------------------------------------------------------------
TOTAL             4,402      875,331,945   828.65%  198,848.69
--------------------------------------------------------------


                                       Weighted Average Collateral Characteristics
                -----------------------------------------------------------------------------------------
Property Type    WAC    FICO    %LTV   % DTI   Primary   SF/PUD   Refi Cachout   Full Doc   Interest only
---------------------------------------------------------------------------------------------------------
Single Family   7.289    648   82.42   41.77     97.98                   10.94      40.78           60.41
PUD             7.239    645   82.21   41.51     97.75                    6.61       46.9            59.2
2-4 Unit        7.306    676    82.2   42.82     90.82        0           8.09      21.23              65
Townhouse       7.399    616   86.16      42     91.18        0          14.16      68.65           20.94
Condo           7.239    660   82.79   43.34     98.23        0            7.9      37.49           71.47
MH              6.675    637   69.83   42.24       100        0              0          0             100
Other
---------------------------------------------------------------------------------------------------------
TOTAL           7.278    650    82.4   41.91     97.42    85.39           9.78      40.23           61.22
---------------------------------------------------------------------------------------------------------


                                PRINCIPAL BUCKET



                          Deal Size
             ----------------------------------     WA Loan
UPB          # Loans       Balance         %        Balance
------------------------------------------------------------
=<50             318    11,142,284.40      1.27%   35,038.63
>50 =<75         434    27,302,269.25      3.12%   62,908.45
>75 =<100        427    37,718,667.51      4.31%   88,334.12
>100 =<125       466    52,536,514.41      6.00%  112,739.30
>125 =<150       407    55,954,581.97      6.39%  137,480.55
>150 =<200       663   115,068,179.58     13.15%  173,556.83
>200 =<250       414    92,606,743.54     10.58%  223,687.79
>250 =<300       336    91,501,183.90     10.45%  272,324.95
>300 =<350       293    94,265,899.42     10.77%  321,726.62
>350 =<400       231    86,380,442.11      9.87%  373,941.31
>400 =<450       142    60,329,619.26      6.89%  424,856.47
>450 =<500       107    51,135,770.30      5.84%  477,904.40
>500 =<600        99    53,983,992.91      6.17%  545,292.86
>600 =<700        41    26,326,495.59      3.01%  642,109.65
=>700             24    19,079,301.18      2.18%  794,970.88
------------------------------------------------------------
TOTAL          4,402      875,331,945    100.00%  198,848.69
------------------------------------------------------------


                                    Weighted Average Collateral Characteristics
             -----------------------------------------------------------------------------------------
UPB           WAC    FICO    %LTV   % DTI   Primary   SF/PUD   Refi Cachout   Full Doc   Interest only
------------------------------------------------------------------------------------------------------
=<50         9.846    703   96.11   40.47     98.65    83.99           5.25      24.09               0
>50 =<75     8.824    648   85.48   39.74     96.41    90.05           6.63      52.71             3.6
>75 =<100    8.232    634   84.28   39.96     95.44    89.71           7.33      63.68           10.17
>100 =<125   7.736    636   83.13   40.08     97.51    88.94           6.72      61.67           25.08
>125 =<150   7.479    632   81.94   39.88     96.55    87.52           8.45      66.34            36.3
>150 =<200   7.304    635   80.44   41.18     97.04    87.91            8.7      59.45            48.8
>200 =<250   7.271    642   80.99   41.89     96.91     88.6          10.35      47.62           62.88
>250 =<300   7.159    647   81.46   42.86     96.69     82.5          11.43      38.76           72.11
>300 =<350   6.961    653   82.28   42.93       100     81.4            8.6      31.28           77.72
>350 =<400   6.955    654   82.23   42.69     97.84    85.66          10.33      30.26            76.2
>400 =<450   7.069    661   83.03   43.39     97.25    84.08          13.18      23.75           82.51
>450 =<500   6.883    665   82.71   43.13     95.24    83.22          11.32      14.16           81.87
>500 =<600   6.859    672   83.12   43.52     98.89     82.8           9.06       9.16           83.44
>600 =<700   6.811    672   84.01   40.28     97.69    78.25           9.72      16.52           95.07
=>700        6.876    694    83.1   41.73       100    83.91          20.59      37.25           86.18
------------------------------------------------------------------------------------------------------
TOTAL        7.278    650    82.4   41.91     97.42    85.39           9.78      40.23           61.22
------------------------------------------------------------------------------------------------------


* In $1,000

Min 19,789   Max 1,196,730

                          State Concentration Bucket *



                                   Deal Size
                ---------------------------------     WA Loan
State*          # Loans       Balance         %       Balance
--------------------------------------------------------------
California         1168   352,965,791.76    40.32%  302,196.74
Illinois            396    70,626,060.82     8.07%  178,348.64
Florida             356    64,740,916.39     7.40%  181,856.51
Arizona             312    59,721,550.45     6.82%  191,415.23
Washington          294    52,919,979.32     6.05%  179,999.93
Texas               337    35,300,200.30     4.03%  104,748.37
Colorado            176    26,890,143.41     3.07%  152,784.91
Massachusetts       100    24,258,316.77     2.77%  242,583.17
Maryland             89    21,263,307.20     2.43%  238,913.56
Virginia             82    19,501,763.33     2.23%  237,826.38
Missouri            158    17,960,702.98     2.05%  113,675.34
Georgia             122    16,463,382.76     1.88%  134,945.76
Nevada               69    12,908,651.20     1.47%  187,081.90
Oregon               64    10,850,796.53     1.24%  169,543.70
Michigan             75    10,481,578.88     1.20%  139,754.39
Other               604    78,478,803.24     8.97%  129,931.79
--------------------------------------------------------------
TOTAL             4,402      875,331,945   100.00%  198,848.69
--------------------------------------------------------------


                                        Weighted Average Collateral Characteristics
                -----------------------------------------------------------------------------------------
State*           WAC    FICO    %LTV   % DTI   Primary   SF/PUD   Refi Cachout   Full Doc   Interest only
---------------------------------------------------------------------------------------------------------
California      6.968    668   82.29    43.8     97.99    80.13           12.2       22.1            84.9
Illinois        7.739    650   83.01   41.64     98.09    76.36           1.24      40.93           40.92
Florida         7.404    641   82.12   40.18     95.99    91.47          15.62      36.98           41.65
Arizona         7.326    636   81.85   41.52     96.89    98.07           1.25      58.13           68.93
Washington      7.249    640   82.36    39.4      95.4    93.71          21.62      58.67           55.62
Texas           7.444    635   80.59   40.11     98.22    96.53           3.63      63.89            9.36
Colorado        7.207    650   82.15   40.72     95.73    85.47           0.91      55.29           73.03
Massachusetts   7.599    637   82.24    39.6     97.78    58.92          24.73      31.36           45.32
Maryland        7.549    643   81.84   43.15     95.29    93.08           1.71      45.27              62
Virginia        7.351    652   83.13   43.19     98.39    88.66              0      42.22           73.16
Missouri        8.002    612   84.24   38.74     97.86     97.4            9.1      65.27           24.42
Georgia         7.349    629   83.05   38.52     97.63     98.4              0      60.75           40.36
Nevada          7.135    635   81.18   41.22      96.1    95.35          10.73      70.79           63.73
Oregon          7.063    637   82.11   39.24     95.76    93.97          25.23      53.83           50.05
Michigan        7.782    631    84.9   42.05     97.26    93.12            1.3      55.86              41
Other           7.703    627   83.29   40.26        98    87.89           7.13      63.87           24.74
---------------------------------------------------------------------------------------------------------
TOTAL           7.278    650    82.4   41.91     97.42    85.39           9.78      40.23           61.22
---------------------------------------------------------------------------------------------------------


* Fill in top 15 states only, combine the remaining in the "Other" Bucket.

* Separate California into North and South if possible.





                      Deal Size
California   ---------------------------------     WA Loan
Breakdown    # Loans       Balance         %       Balance
-----------------------------------------------------------
CA North         202    64,196,324.20    18.19%  317,803.59
CA South         966   288,769,467.56    81.81%  298,933.20
-----------------------------------------------------------
               1,168      352,965,792   100.00%  302,196.74
-----------------------------------------------------------


                                    Weighted Average Collateral Characteristics
California   -----------------------------------------------------------------------------------------
Breakdown     WAC    FICO    %LTV   % DTI   Primary   SF/PUD   Refi Cachout   Full Doc   Interest only
------------------------------------------------------------------------------------------------------
CA North     6.885    669    82.1   42.91     99.07    89.42           3.55      30.03           84.78
CA South     6.987    668   82.33   43.99     97.75    78.06          14.12      20.34           84.93
------------------------------------------------------------------------------------------------------
             6.968    668   82.29    43.8     97.99    80.13           12.2       22.1            84.9
------------------------------------------------------------------------------------------------------


                              FIXED / FLOATING (ii)



                        Deal Size
          -------------------------------------     WA Loan
Type        # Loans         Balance         %       Balance
------------------------------------------------------------
Fixed             332    51,217,726.16     6.00%  154,270.26
Balloon           590    33,903,489.21     3.97%   57,463.54
2/28             1353   216,229,600.33    25.32%  159,814.93
3/27              224    35,600,038.67     4.17%  158,928.74
5/25                                       0.00%
2/28 IO          1608   457,723,019.78    53.59%  284,653.62
3/27 IO           219    59,447,365.59     6.96%  271,449.16
5/25 IO                                    0.00%
Other              76    21,210,705.60     0.00%  279,088.23
------------------------------------------------------------
TOTAL     854,121,240      854,121,240   100.00%  198,848.69
------------------------------------------------------------


                                 Weighted Average Collateral Characteristics
          -----------------------------------------------------------------------------------------
Type       WAC    FICO    %LTV   % DTI   Primary   SF/PUD   Refi Cachout   Full Doc   Interest only
---------------------------------------------------------------------------------------------------
Fixed      7.43    632   78.92   39.42     97.74    90.47          14.24      68.74               0
Balloon    9.99    715    99.6   43.31       100    82.43           2.91       8.33               0
2/28       7.54    620   81.98   40.53     96.76    88.65          10.77      54.67               0
3/27       7.56    617   82.95   40.44     97.12    82.28          13.37      61.28               0
5/25
2/28 IO   6.963    663   82.01    42.9      97.7    84.17           7.88      29.47             100
3/27 IO   7.022    657   80.88   41.79     97.44    79.82          13.87       44.3             100
5/25 IO
Other     6.969    656   79.41   41.24     93.74    92.01          23.36      60.75           88.39
---------------------------------------------------------------------------------------------------
TOTAL     7.278    650    82.4   41.91     97.42    85.39           9.78      40.23           61.22
---------------------------------------------------------------------------------------------------


List all loan types and separate the IO loans i.e. 2/28 and 2/28 IO should have
separate rows.

% of 30/40 Year Loans 0   % of 40/40 Year Loans 0

                                   LIEN BUCKET



                     Deal Size
         ---------------------------------     WA Loan
Type     # Loans       Balance         %       Balance
-------------------------------------------------------
First       3810   841,387,685.73    96.12%  220,836.66
Second       592    33,944,259.60     3.88%   57,338.28
Third                                 0.00%
Other                                 0.00%
-------------------------------------------------------
TOTAL      4,402      875,331,945   100.00%  198,848.69
-------------------------------------------------------


                                Weighted Average Collateral Characteristics
         -----------------------------------------------------------------------------------------
Type      WAC    FICO    %LTV   % DTI   Primary   SF/PUD   Refi Cachout   Full Doc   Interest only
--------------------------------------------------------------------------------------------------
First    7.169    647    81.7   41.86     97.32    85.51          10.06      41.53           63.69
Second   9.996    715   99.64   43.23       100    82.45           2.91       8.12               0
Third
Other
--------------------------------------------------------------------------------------------------
TOTAL    7.278    650    82.4   41.91     97.42    85.39           9.78      40.23           61.22
--------------------------------------------------------------------------------------------------


                                PREPAYMENT BUCKET



                       Deal Size
           ---------------------------------     WA Loan
Type       # Loans       Balance         %       Balance
---------------------------------------------------------
None          1001   158,264,952.06    18.08%  158,106.85
6 Months        91     9,853,157.07     1.13%  108,276.45
1 Year          72    20,384,220.19     2.33%  283,114.17
2 Year        2726   586,881,337.93    67.05%  215,290.29
3 Year         511    99,768,278.08    11.40%  195,241.25
5 Year                                  0.00%
Other            1       180,000.00     0.02%  180,000.00
---------------------------------------------------------
TOTAL        4,402      875,331,945   100.00%  198,848.69
---------------------------------------------------------


                                   Weighted Average Collateral Characteristics
           -----------------------------------------------------------------------------------------
Type        WAC    FICO    %LTV   % DTI   Primary   SF/PUD   Refi Cachout   Full Doc   Interest only
----------------------------------------------------------------------------------------------------
None       7.879    645   83.47      41      97.6     79.5           7.82      41.39           39.56
6 Months   7.907    624   82.65   38.98      96.5    97.11          11.39      74.83           13.51
1 Year     7.407    667   82.52   41.68      98.8    81.75            5.8      32.35           71.57
2 Year     7.124    653   82.47   42.44     97.49    86.39            8.9       36.3           70.66
3 Year     7.141    642   80.24   40.57     96.54    88.45          18.73      59.62           42.83
5 Year
Other       7.45    597      80   39.05       100      100              0        100               0
----------------------------------------------------------------------------------------------------
TOTAL      7.278    650    82.4   41.91     97.42    85.39           9.78      40.23           61.22
----------------------------------------------------------------------------------------------------


                                  INDEX BUCKET



                                Deal Size
                    ---------------------------------     WA Loan
Type                # Loans       Balance         %       Balance
------------------------------------------------------------------
Libor - 6 Month        3404   769,000,024.37    98.48%  225,910.70
Libor - 1 Year
Treasury - 1 Year        39    11,876,693.92     1.52%  304,530.61
CMT - 1 Year                                     0.00%
                                                 0.00%
                                                 0.00%
                                                 0.00%
Other                                            0.00%
------------------------------------------------------------------
TOTAL                 3,443      780,876,718   100.00%  226,801.25
------------------------------------------------------------------


                                            Weighted Average Collateral Characteristics
                    -------------------------------------------------------------------------------------------
Type                 WAC    FICO    %LTV    % DTI    Primary   SF/PUD   Refi Cachout   Full Doc   Interest only
---------------------------------------------------------------------------------------------------------------
Libor - 6 Month     7.157    648   81.96     42.03     97.39    85.01           9.41      39.18           67.25
Libor - 1 Year
Treasury - 1 Year   6.933    661   78.77     40.56     94.95    92.08          21.77      63.13           79.27
CMT - 1 Year



Other
---------------------------------------------------------------------------------------------------------------
TOTAL               7.154    648   81.91     42.01    97.35     85.11           9.60      39.54           67.44
---------------------------------------------------------------------------------------------------------------


List all reset rates



                              MORTGAGE RATE (WAC) BUCKET



                          Deal Size                                     Weighted Average Collateral Characteristics
               -----------------------------             ----------------------------------------------------------------
                                                WA Loan                                           Refi           Interest
Type           # Loans     Balance       %      Balance    WAC  FICO  %LTV % DTI Primary SF/PUD Cachout Full Doc   only
-------------------------------------------------------------------------------------------------------------------------
=> 5.00                                 0.00%
>5.00 =<5.50                            0.00%
>5.50 =<6.00                            0.00%
>6.00 =<6.50       595 172,248,921.30  19.68% 289,493.99  6.387  669 80.41 43.18   99.56  85.96    8.99    44.82    83.07
>6.50 =<7.00      1160 290,814,980.08  33.22% 250,702.57  6.812  660 81.05 41.98   98.45  86.04    9.29    37.64    73.41
>7.00 =<7.50       759 162,574,306.70  18.57% 214,195.40  7.302  648 81.95 41.78   96.42  81.89    9.77     40.2    57.65
>7.50 =<8.00       654 126,360,139.50  14.44% 193,211.22  7.779  627 83.08 41.26   95.78  85.14   11.63    38.77    47.63
>8.00 =<8.50       255  42,125,217.03   4.81% 165,196.93    8.3  603 84.89 40.27   95.79  91.05    9.36    48.96    31.97
>8.50 =<9.00       245  29,594,925.05   3.38% 120,795.61  8.785  602 85.64 39.29   90.16  86.26   14.48    53.45    31.21
>9.00 =<9.50       187  15,732,985.31   1.80%  84,133.61  9.367  624 87.65 41.33   92.94  91.86   11.03    49.45    14.69
>9.50 =<10.00      285  20,678,345.69   2.36%  72,555.60   9.89  671 94.53  42.9    98.3  84.64    6.95     22.9     2.06
>10.00 =<10.50     180  10,552,039.73   1.21%  58,622.44 10.291  675 94.35 42.29     100  84.32    7.52    16.81        0
>10.50 =<11.00      82   4,650,084.95   0.53%  56,708.35 10.662  688 95.81 40.55     100  80.34     7.4     9.31        0
>11.00 =<11.50                          0.00%
>11.50 =<12.00                          0.00%
>12.00 =<12.50                          0.00%
>12.50 =<13.00                          0.00%
>13.00                                  0.00%
-------------------------------------------------------------------------------------------------------------------------
TOTAL            4,402    875,331,945 100.00% 198,848.69  7.278  650  82.4 41.91   97.42  85.39    9.78    40.23    61.22
-------------------------------------------------------------------------------------------------------------------------


                               MARGIN (WAM) BUCKET



                          Deal Size                                    Weighted Average Collateral Characteristics
               -----------------------------             ---------------------------------------------------------------
                                                WA Loan                                          Refi           Interest
Type           # Loans     Balance       %      Balance   WAC  FICO  %LTV % DTI Primary SF/PUD Cachout Full Doc   only
------------------------------------------------------------------------------------------------------------------------
=> 2.00                                 0.00%
>2.00 =<2.50                            0.00%
>2.50 =<3.00         4     568,912.57   0.07% 142,228.14   7.4  624  81.7 40.71     100   58.9       0      100    32.34
>3.00 =<3.50         5     697,013.10   0.09% 139,402.62 7.373  663    80 45.77     100  83.61       0    29.24    21.22
>3.50 =<4.00       130  21,730,998.77   2.78% 167,161.53 7.387  656 80.37 40.16   96.45  72.97       0    45.81    37.76
>4.00 =<4.50         5     956,977.46   0.12% 191,395.49 7.245  646 80.25 43.95     100  67.54       0    28.27        0
>4.50 =<5.00         2     869,029.40   0.11% 434,514.70  6.57  678 85.55 48.23     100    100       0        0    58.68
>5.00 =<5.50       754 192,941,611.12  24.71% 255,890.73 7.094  631 82.76 42.22   99.63  92.56   11.09    53.97    49.41
>5.50 =<6.00      1779 443,455,483.16  56.79% 249,272.33  7.06  657 81.77 42.44   99.41   83.8    9.12    31.66     79.7
>6.00 =<6.50       763 119,540,837.70  15.31% 156,672.13 7.557  645 81.31 40.34   86.13  80.34   10.99    44.45    57.42
>6.50 =<7.00         1     115,855.00   0.01% 115,855.00  6.85  634    85 35.16     100    100       0      100      100
>7.00 =<7.50                            0.00%
>7.50 =<8.00                            0.00%
>8.00 =<8.50                            0.00%
>8.50 =<9.00                            0.00%
>9.00 =<9.50                            0.00%
>9.50 =<10.00                           0.00%
>12.00 =<12.50                          0.00%
>12.50 =<13.00                          0.00%
>13.00 =<13.50                          0.00%
>13.50 =<14.00                          0.00%
>14.00                                  0.00%
------------------------------------------------------------------------------------------------------------------------
TOTAL            3,443    780,876,718 100.00% 226,801.25 7.154  648 81.91 42.01   97.35  85.11     9.6    39.54    67.44
------------------------------------------------------------------------------------------------------------------------




                                  Deal Coverage



----------------------------------------------------------------------------------------
                                   Loan-to-Value (LTV)
----------------------------------------------------------------------------------------
            =<55  >55 =<60  >60 =<65  >65 =<70  >70 =<75  >75 =<80
----------------------------------------------------------------------------------------
Percentage of the deal
based on FICO and
LTV buckets.*

FICO

NA
=<500
>500 =<550    0.08           0.1          0.21          0.34           0.5          0.64
>550 =<600    0.75          0.36          0.31          0.89          0.94          6.61
>600 =<625     0.1          0.17          0.08          0.61          0.99          6.76
>625 =<650    0.12          0.12          0.23           0.4           0.4          7.21
>650 =<675    0.04          0.06          0.02          0.19          0.31         10.14
>675 =<700    0.13          0.01          0.14          0.01          0.08          7.93
>700 =<725       0          0.02          0.04          0.16          0.18          4.25
>725 =<750    0.04             0          0.01          0.07          0.08          2.32
>750 <800     0.01             0             0          0.08          0.02          2.02
=>800            0             0             0             0             0          0.08


---------------------------------------------------------------------------
                            Loan-to-Value (LTV)
---------------------------------------------------------------------------
            >80 =<85  >85 =<90  >90 =<95  >95 <100  =>100
---------------------------------------------------------------------------
Percentage of the deal
based on FICO and
LTV buckets.*

FICO

NA
=<500
>500 =<550          0.83          0.46             0             0        0
>550 =<600          1.92          4.09          1.37             0        0
>600 =<625          1.61          3.15          0.75             0        0
>625 =<650          2.57           2.8          0.48             0        0
>650 =<675          4.58          1.89          0.37             0        0
>675 =<700          3.35          1.79          0.25           1.5        0
>700 =<725          1.95          1.05          0.35          1.07        0
>725 =<750          1.19          0.78          0.11          0.63        0
>750 <800           0.65           0.4          0.09           0.5        0
=>800                  0          0.12             0          0.01        0


*    This table should be filled out with the percentage of the deal
     corresponding to each cross LTV and FICO buckets

                                   MI Coverage



----------------------------------------------------------------------------------------
                                   Loan-to-Value (LTV)
----------------------------------------------------------------------------------------
            =<55  >55 =<60  >60 =<65  >65 =<70  >70 =<75  >75 =<80
----------------------------------------------------------------------------------------
Percentage of MI coverage
based on FICO and
LTV buckets.*

FICO

NA
=<500
>500 =<550
>550 =<600
>600 =<625
>625 =<650
>650 =<675
>675 =<700
>700 =<725
>725 =<750
>750 <800
=>800


---------------------------------------------------------------------------
                             Loan-to-Value (LTV)
---------------------------------------------------------------------------
            >80 =<85  >85 =<90  >90 =<95  >95 <100  =>100
---------------------------------------------------------------------------
Percentage of MI coverage
based on FICO and
LTV buckets.*

FICO

NA
=<500
>500 =<550
>550 =<600
>600 =<625
>625 =<650
>650 =<675
>675 =<700
>700 =<725
>725 =<750
>750 <800
=>800


*    This table should be filled out with the percentage of MI corresponding to
     each cross LTV and FICO buckets



                               IO ONLY FICO BUCKET



                                                                     Weighted Average Collateral Characteristics
                       Deal Size                        --------------------------------------------------------------------
            ------------------------------    WA Loan                                                 Refi    Full
Type        # Loans     Balance        %      Balance    WAC   FICO   %LTV  % DTI  Primary  SF/PUD  Cachout   Doc   LTV =>80
----------------------------------------------------------------------------------------------------------------------------
NA                                    0.00%
=<500                                 0.00%
>500 =<520                            0.00%
>520 =<540                            0.00%
>540 =<560       53  12,705,137.42    2.37% 239,719.57  7.747   555  78.26   43.3    98.24   92.11    20.12  65.21     50.73
>560 =<580       76  18,634,434.19    3.48% 245,189.92  7.576   570  76.24  42.83    98.36   89.06    21.24  66.48     59.26
>580 =<600       98  24,076,075.38    4.49% 245,674.24  7.272   590  77.89  42.33    98.54   94.75    15.89  64.77      63.6
>600 =<620      224  56,071,980.27   10.46% 250,321.34  7.052   611  82.12  39.83     97.7   87.74    16.77  71.89     83.75
>620 =<640      246  61,805,148.85   11.53% 251,240.44  7.061   630  82.27  41.73     97.8   87.13    13.07  52.85     86.06
>640 =<660      276  78,047,234.22   14.56% 282,779.83   6.96   651  82.64  42.54    98.11   84.98    12.88  37.62     92.72
>660 =<680      335  99,877,141.56   18.64% 298,140.72   6.91   670  82.14  43.64    96.81   82.13     3.69  14.87     96.53
>680 =<700      233  72,229,732.06   13.48% 309,998.85  6.837   690   82.3  43.21    97.47   80.76     4.34  10.53     93.34
>700 =<750      272  87,645,537.39   16.35% 322,226.24  6.762   721   82.7  43.73    96.49   78.67     4.53   8.71     93.49
>750             82  24,826,815.17    4.63% 302,766.04  6.825   771  81.75  43.23    98.85   80.43     2.52  13.69     92.33
----------------------------------------------------------------------------------------------------------------------------
TOTAL         1,895    535,919,237  100.00% 282,806.98  6.971   662  81.83   42.7     97.5   83.92      9.2  32.11     88.45
----------------------------------------------------------------------------------------------------------------------------


                            IO ONLY PRINCIPAL BUCKET



                                                                Weighted Average Collateral Characteristics
                       Deal Size             --------------------------------------------------------------------------------
            -------------------------------    WA Loan                                                 Refi    Full
UPB         # Loans      Balance        %      Balance    WAC   FICO   %LTV  % DTI  Primary  SF/PUD  Cachout   Doc   LTV =>80
-----------------------------------------------------------------------------------------------------------------------------
=<50                                   0.00%
>50 =<75         15      983,134.47    0.18%  65,542.30  7.638   642  80.64  44.36    85.86   92.47     7.53  74.11     40.48
>75 =<100        43    3,836,473.00    0.72%  89,220.30  7.432   631   78.7  39.84    92.64   88.73     6.69  61.13     78.55
>100 =<500     1694  444,582,412.96   82.96% 262,445.34  6.994   659  81.51  42.78    97.36   84.43     8.83  34.98     87.91
>500 =<600       83   45,045,238.58    8.41% 542,713.72  6.839   677   83.3   44.1    98.67   83.04     7.16    7.2     93.92
>600 =<700       39   25,029,627.50    4.67% 641,785.32  6.793   672  84.09  40.25    97.57   77.12    10.23  17.37     89.74
=>700            21   16,442,350.00    3.07% 782,969.05  6.833   693  83.79  41.16      100   81.33    23.89  35.94     91.06
-----------------------------------------------------------------------------------------------------------------------------
TOTAL         1,895     535,919,237  100.00% 282,806.98  6.971   662  81.83   42.7     97.5   83.92      9.2  32.11     88.45
-----------------------------------------------------------------------------------------------------------------------------


* In $1,000

                             INITAIL IO RESET PERIOD



                                                                   Weighted Average Collateral Characteristics
                    Deal Size                         --------------------------------------------------------------------
         -------------------------------    WA Loan                                                Refi    Full
UPB      # Loans      Balance        %      Balance    WAC   FICO   %LTV  % DTI  Primary  SF/PUD  Cachout   Doc   LTV =>80
--------------------------------------------------------------------------------------------------------------------------
None                                0.00%
2 Year                              0.00%
3 Year                              0.00%
5 Year      1895  535,919,236.51  100.00% 282,806.98  6.971   662  81.83   42.7     97.5   83.92      9.2  32.11     88.45
7 Year                              0.00%
10 year                             0.00%
Other                               0.00%
--------------------------------------------------------------------------------------------------------------------------
TOTAL       1895  535,919,236.51  100.00% 282,806.98  6.971   662  81.83   42.7     97.5   83.92      9.2  32.11     88.45
--------------------------------------------------------------------------------------------------------------------------






A



                           average     CLTV      CLTV     % full          % owner occ
                % of pool    LTV    above 80%  above 90%    doc   (Only Investment Property)
--------------------------------------------------------------------------------------------
FICO below 560       5.64    79.16      43.98       8.13   74.66                       98.64
FICO below 580      10.97    80.34      51.84      13.84   73.45                       98.51
FICO below 600      19.73     80.2      60.76      30.45   73.61                        98.8


                 ave   % below  % above
                 wac     100k     500k    % IO  ave DTI  DTI > 45%
--------------------------------------------------------------------
FICO below 560  8.274    12.36     1.14  22.94    41.04     43.49
FICO below 580   8.08    11.69     0.59  31.28    41.06     42.89
FICO below 600  7.753    11.58     1.23  29.83    41.22     43.51


B



                                                                                       % owner occ          ave
               % of pool  average LTV  FICO <600   FICO <575   % full doc  (Only Investment Property)   wac
----------------------------------------------------------------------------------------------------------------
LTV above 85%      23.99        92.09      23.52         13.56        46.74                         99.79   7.97
LTV above 90%       7.46        97.35      17.34          7.25        37.72                           100  9.011
LTV above 95%       3.71        99.98          0             0         8.27                           100  9.991


               % below  % above                                 CLTV
                100k       500k   % IO  ave DTI  DTI >45%   above 80%  CLTV >90%
------------------------------------------------------------------------------------
LTV above 85%    17.76    11.67  46.56     41.4     42.74        100         46.12
LTV above 90%    44.61     4.64  17.78    42.55     45.12        100           100
LTV above 95%     77.4        0      0    43.34      48.2        100           100


C



                                                                                 % owner occ          ave
           % of pool  average LTV  FICO < 600  FICO <575  % full doc  (Only Investment Property)   wac
----------------------------------------------------------------------------------------------------------
DTI > 40%      67.88        82.74      18.21         8.97        38.7                         97.69  7.247
DTI > 45%      44.98        82.64      19.09         9.35       41.51                         97.66  7.225
DTI > 50%       5.49        79.12      40.97        24.38       85.02                          96.2  7.176


           % below  % above
             100k     500k    % IO  ave DTI  DTI > 45%  CLTV above 80%  CLTV > 90%
--------------------------------------------------------------------------------------
DTI > 40%     7.24    12.83  64.95    46.5       66.27          84.6          66.35
DTI > 45%     6.83    12.55  65.65   48.46         100         84.41          66.23
DTI > 50%     4.43     3.52  50.67   52.68         100         62.59          39.14


D



                                                                                          % owner occ          ave
                  % of pool  average LTV  FICO < 600  FICO < 575  % full doc  (Only Investment Property)   wac
-------------------------------------------------------------------------------------------------------------------
Non Owner Occ          2.58        76.33       9.22          5.91        29.16                             0  7.725
Stated Doc            51.52        82.85       5.24          2.71            0                         97.23  7.318
Loans below 100k       8.64        86.63      26.43         13.33        53.92                          96.5   8.69
IO Loans              61.22        81.83       9.61          4.99        32.11                          97.5  6.971


                  % below  % above
                    100k     500k    % IO  ave DTI  DTI > 45%  LTV > 80%  CLTV > 90%
------------------------------------------------------------------------------------------
Non Owner Occ       11.74     5.36   59.3    39.61      40.85        12.69         0.48
Stated Doc           7.06    14.97  71.74    42.89      46.66        84.52        70.07
Loans below 100k      100        0   5.84    39.98      35.52        86.12        74.75
IO Loans             0.82    16.14    100     42.7      48.23        84.03        66.57


E When do IOs reset



IO Remaining Term  Count    Balance ($)   % Balance  WA APR  WA RTERM  WA CLTV  WA FICO
---------------------------------------------------------------------------------------
0                   2507  339,412,708.82      38.78   7.764       340    90.88      631
56                    12    3,403,185.00       0.39   6.759       356    94.33      641
57                   252   75,397,727.31       8.61   6.801       357    93.67      657
58                   654  177,232,194.20      20.25   7.048       358    92.46      659
59                   885  253,930,848.00      29.01    6.97       359    93.73      665
60                    92   25,955,282.00       2.97   6.973       360    93.36      673
---------------------------------------------------------------------------------------
Total:              4402  875,331,945.33        100   7.278       351    92.35      650
---------------------------------------------------------------------------------------


F Is DTI off current mortgage rate for IC YES

G Summary of pool per grades



                                                          Remaining
Credit Grade  Count    Balance ($)   % of Balance   WAC      Term    WA LTV  WA FICO
------------------------------------------------------------------------------------
A              4110  818,412,229.16          93.5  7.228        351    93.4      655
A-              147   32,214,981.32          3.68  7.752        358   80.57      592
B                96   17,305,012.54          1.98  7.937        359   73.33      577
C                36    5,431,098.21          0.62  8.996        356   73.64      563
D                13    1,968,624.11          0.22  9.789        358   68.42      555
------------------------------------------------------------------------------------
Total:         4402  875,331,945.33           100  7.278        351   92.35      650
------------------------------------------------------------------------------------




H What are top 10 cities and average strats for each



Top 10 Cities of Overall Pool  Loans    Balance ($)   Balance  Rate (%)  (months)   LTV   Score
-----------------------------------------------------------------------------------------------
LOS ANGELES                       69   21,671,269.87     2.48      7.08       349  92.52    675
CHICAGO                           90   17,549,990.50        2     7.712       347  91.42    656
PHOENIX                           63   12,060,857.51     1.38     7.358       355  89.17    632
SAN DIEGO                         29   10,420,900.62     1.19      6.74       356  92.12    653
LONG BEACH                        32   10,258,520.85     1.17     7.039       347  94.78    674
LAS VEGAS                         49    8,999,869.92     1.03     7.029       349  91.23    645
MORENO VALLEY                     30    8,107,519.88     0.93      6.94       352   94.3    659
ANAHEIM                           23    8,000,796.98     0.91     7.032       342   95.9    695
SANTA ANA                         21    7,735,788.45     0.88     6.824       347  89.78    675
DENVER                            49    6,923,625.81     0.79     7.243       345  95.41    679
Other                           3947  763,602,804.94    87.24     7.297       351  92.35    648
-----------------------------------------------------------------------------------------------
Total:                          4402  875,331,945.33      100     7.278       351  92.35    650
-----------------------------------------------------------------------------------------------


I What % of pool are LTV above 90% and stated doc, IO, FICO below 600 or NOO?



                                                                                                       % non-owner
                                                                                                        Occupied
                                                                                                          (Only
                                                                                                       investment   % Fico Less
Description                Loans   Balance ($)   % of Balance  Rate (%)  % stated Doctype  % IO Loans   Property)     Than 600
-------------------------------------------------------------------------------------------------------------------------------
(LTV > 90) and Stated Doc    526  36,640,634.39           100     9.637               100        8.68            0            0
LTV > 90 and IO               39  11,612,574.43           100     7.469              27.4         100            0         1.98
LTV > 90 and FICO < 600       71  11,327,110.53           100     8.345                 0        2.03            0          100
LTV > 90 and NOO               0           0.00             0


----------------------------------------------------------------------
J What is max LTv fo stated income and minimum FICO for stated income?


   MAX LTV, STATED INC.    100
   MIN FICO, STATED INC.   520

----------------------------------------------------------------------

----------------------------------------------------------------------

K What is min FICO for loans above 90% LTV   558

----------------------------------------------------------------------

L Seasoning hisotry - any over 3m? YES

M Excess spread?

N what is available funds cap schedule at forwards +200, fixed prepay at 50%
CPR, ARM pay at 125% CPR

Please specify as part of the strats, silent seconds, second liens, MH,

o


% Silent Seconds         56.06%
% Second Liens            3.88%
% Manufactured Housing    0.05%






1. IO Loans



          Number of                    WA    Min   Max    WA    Min
IO Loans    Loans        Balance      LTV    LTV   LTV   DTI    DTI
-------------------------------------------------------------------
Y             1,895  535,919,236.51  81.83  30.59   95   42.7  0.95
N             2,507  339,412,708.82   83.3  14.41  100  40.65  0.95
-------------------------------------------------------------------
Total:        4,402  875,331,945.33   82.4  14.41  100  41.91  0.95
-------------------------------------------------------------------


           Max    WA    Min   Max      % Full        % Stated      % Limited
IO Loans   DTI   FICO  FICO  FICO  Documentation  Documentation  Documentation
------------------------------------------------------------------------------
Y            55   662   550   805          32.11          60.37            0.5
N         54.99   631   502   815          53.06          37.54           0.37
------------------------------------------------------------------------------
Total:       55   650   502   815          40.23          51.52           0.45
------------------------------------------------------------------------------


2. Low Bal



              Number of                    WA    Min   Max    WA    Min
Low Bal         Loans        Balance      LTV    LTV   LTV   DTI    DTI
-----------------------------------------------------------------------
btw 50 - 100        862   65,070,936.76  84.78   16.3  100  39.85  9.22
< 50K               317   11,092,284.40   96.2  14.41  100  40.57  6.61
Other             3,223  799,168,724.17  82.01  30.33  100   42.1  0.95
-----------------------------------------------------------------------
Total:            4,402  875,331,945.33   82.4  14.41  100  41.91  0.95
-----------------------------------------------------------------------


               Max    WA    Min   Max      % Full        % Stated      % Limited
Low Bal        DTI   FICO  FICO  FICO  Documentation  Documentation  Documentation
----------------------------------------------------------------------------------
btw 50 - 100  54.94   640   502   805          59.03          36.49           0.32
< 50K         54.67   703   507   798           24.2          73.77           0.32
Other            55   650   503   815          38.93          52.43           0.46
----------------------------------------------------------------------------------
Total:           55   650   502   815          40.23          51.52           0.45
----------------------------------------------------------------------------------


3. Coupon



               Number of                    WA    Min   Max    WA    Min
Coupon           Loans        Balance      LTV    LTV   LTV   DTI    DTI
------------------------------------------------------------------------
<= 7.99%           3,148  748,606,437.38  81.45  14.41   95  42.09  0.95
8.00% - 8.99%        476   73,281,314.68  84.68   16.3  100  40.03  0.95
9.00% - 9.99%        504   37,576,229.49  91.61  16.78  100  42.09  6.96
>= 10.00%            274   15,867,963.79  94.77  24.29  100  41.74  9.26
------------------------------------------------------------------------
Total:             4,402  875,331,945.33   82.4  14.41  100  41.91  0.95
------------------------------------------------------------------------


                Max    WA    Min   Max      % Full        % Stated      % Limited
Coupon          DTI   FICO  FICO  FICO  Documentation  Documentation  Documentation
-----------------------------------------------------------------------------------
<= 7.99%          55   654   521   815          39.98          51.63           0.43
8.00% - 8.99%  54.94   601   521   791          50.73          39.93           0.59
9.00% - 9.99%     55   650   506   796          35.53          58.88            0.5
>= 10.00%      53.42   679   502   805          15.08          82.52           0.36
-----------------------------------------------------------------------------------
Total:            55   650   502   815          40.23          51.52           0.45
-----------------------------------------------------------------------------------


4. Occupancy Status



                     Number of                    WA    Min   Max    WA    Min
Occupancy Status       Loans        Balance      LTV    LTV   LTV   DTI    DTI
------------------------------------------------------------------------------
Investment Property        122   22,559,586.82  76.33  32.26   90  39.61  5.86
Primary Home             4,280  852,772,358.52  82.56  14.41  100  41.97  0.95
------------------------------------------------------------------------------
Total:                   4,402  875,331,945.33   82.4  14.41  100  41.91  0.95
------------------------------------------------------------------------------


                      Max    WA    Min   Max      % Full       % Stated       % Limited
Occupancy Status      DTI   FICO  FICO  FICO  Documentation  Documentation  Documentation
-----------------------------------------------------------------------------------------
Investment Property  54.84   663   548   774          29.16          55.46              0
Primary Home            55   650   502   815          40.53          51.42           0.46
-----------------------------------------------------------------------------------------
Total:                  55   650   502   815          40.23          51.52           0.45
-----------------------------------------------------------------------------------------




5. Lien



        Number of                    WA    Min   Max    WA    Min
Lien      Loans        Balance      LTV    LTV   LTV   DTI    DTI
-----------------------------------------------------------------
1           3,810  841,387,685.73   81.7  14.41   95  41.86  0.95
2             592   33,944,259.60  99.64  59.76  100  43.23  6.96
-----------------------------------------------------------------
Total:      4,402  875,331,945.33   82.4  14.41  100  41.91  0.95
-----------------------------------------------------------------


         Max    WA    Min   Max      % Full        % Stated      % Limited
Lien     DTI   FICO  FICO  FICO  Documentation  Documentation  Documentation
----------------------------------------------------------------------------
1          55   647   502   815          41.53          49.99           0.44
2       54.67   715   680   805           8.12          89.53           0.54
----------------------------------------------------------------------------
Total:     55   650   502   815          40.23          51.52           0.45
----------------------------------------------------------------------------


6. Documentation



                             Number of                    WA    Min   Max    WA    Min
Documentation                  Loans        Balance      LTV    LTV   LTV   DTI    DTI
---------------------------------------------------------------------------------------
12 Month Bank Statements           203   49,885,870.43  82.51   53.4  100  34.89   0.95
24 Month Bank Statements            66   18,378,201.00  82.74     50   95  32.78   0.95
Full Documentation               2,089  352,187,174.19  81.82  14.41  100  42.18   4.51
Limited Documentation               17    3,911,493.95  80.47  69.92  100  37.56  22.81
Stated Income Self-Employed        668  168,594,954.14  82.41   16.3  100  41.38   7.06
Stated Income Wage Earner        1,359  282,374,251.62  83.11  24.29  100  43.79  15.73
---------------------------------------------------------------------------------------
Total:                           4,402  875,331,945.33   82.4  14.41  100  41.91   0.95
---------------------------------------------------------------------------------------


                              Max    WA    Min   Max      % Full        % Stated      % Limited
Documentation                 DTI   FICO  FICO  FICO  Documentation  Documentation  Documentation
-------------------------------------------------------------------------------------------------
12 Month Bank Statements        55   623   529   758              0              0              0
24 Month Bank Statements     53.92   618   512   760              0              0              0
Full Documentation              55   616   502   815            100              0              0
Limited Documentation         47.2   653   579   762              0              0            100
Stated Income Self-Employed  51.25   674   526   795              0            100              0
Stated Income Wage Earner    53.92   685   520   805              0            100              0
-------------------------------------------------------------------------------------------------
Total:                          55   650   502   815          40.23          51.52           0.45
-------------------------------------------------------------------------------------------------


7. Property Type



                          Number of                    WA    Min    Max     WA    Min
Property Type               Loans        Balance      LTV    LTV    LTV    DTI    DTI
--------------------------------------------------------------------------------------
Condominium                     344   61,538,368.64  82.79  46.67    100  43.34  14.97
Manufactured Home                 1      405,000.00  69.83  69.83  69.83  42.24  42.24
Planned Unit Development        718  149,678,982.75  82.21  42.39    100  41.51   4.51
Single Family Attached           36    4,935,124.04  82.18   53.4    100  40.14  16.77
Single Family Detached        3,059  592,873,455.08  82.42  14.41    100  41.78   0.95
Townhouse                        16    2,421,350.74  86.16     68    100     42  31.56
Two-to-Four Family              228   63,479,664.08   82.2   16.3    100  42.82   12.3
--------------------------------------------------------------------------------------
Total:                        4,402  875,331,945.33   82.4  14.41    100  41.91   0.95
--------------------------------------------------------------------------------------


                           Max    WA    Min   Max      % Full        % Stated      % Limited
Property Type              DTI   FICO  FICO  FICO  Documentation  Documentation  Documentation
----------------------------------------------------------------------------------------------
Condominium               54.71   660   503   796          37.49           55.4           1.53
Manufactured Home         42.24   637   637   637              0            100              0
Planned Unit Development  54.92   645   514   804           46.9          45.32           0.24
Single Family Attached    53.19   650   550   776          51.31          36.77              0
Single Family Detached       55   648   502   815          40.69          51.33           0.39
Townhouse                 54.07   616   541   719          68.65          29.05              0
Two-to-Four Family        54.87   676   510   795          21.23          65.86           0.45
----------------------------------------------------------------------------------------------
Total:                       55   650   502   815          40.23          51.52           0.45
----------------------------------------------------------------------------------------------


11 Madison Avenue - Fourth floor
NY, NY 10010

This material is provided to you solely for informational purposes, is intended
for your use only and does not constitute an offer or commitment, a solicitation
of an offer or commitment, or any advice or recommendation, to enter into or
conclude any transaction (whether on the indicative terms shown or otherwise).
This material has been prepared by CSFB based on assumptions and parameters
determined by it in good faith. It is important that you (recipient) understand
that those assumptions and parameters are not the only ones that might
reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
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and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.



1. Top 5 States



--------------------------------------------------------------------------------
                                                                      Percentage
Top 5 States                                                          By Balance
--------------------------------------------------------------------------------
California                                                               40.32%
Illinois                                                                  8.07
Florida                                                                    7.4
Arizona                                                                   6.82
Washington                                                                6.05
Other                                                                    31.34
--------------------------------------------------------------------------------
Total:                                                                  100.00%
--------------------------------------------------------------------------------


2. Top 5 Property Types



--------------------------------------------------------------------------------
                                                                      Percentage
Top 5 Property Types                                                  By Balance
--------------------------------------------------------------------------------
Condominium                                                               7.03%
Manufactured Home                                                         0.05
Planned Unit Development                                                  17.1
Single Family Attached                                                    0.56
Single Family Detached                                                   67.73
Townhouse                                                                 0.28
Two-to-Four Family                                                        7.25
--------------------------------------------------------------------------------
Total:                                                                  100.00%
--------------------------------------------------------------------------------


3. Documentation



--------------------------------------------------------------------------------
                                                                      Percentage
Documentation                                                         By Balance
--------------------------------------------------------------------------------
Full Documentation                                                       40.23%
Stated Income Wage Earner                                                32.26
Stated Income Self-Employed                                              19.26
12 Month Bank Statements                                                   5.7
24 Month Bank Statements                                                   2.1
Limited Documentation                                                     0.45
--------------------------------------------------------------------------------
Total:                                                                  100.00%
--------------------------------------------------------------------------------




4. Purpose



--------------------------------------------------------------------------------
                                                                      Percentage
Purpose                                                               By Balance
--------------------------------------------------------------------------------
Purchase                                                                 60.19%
Refinance - Cashout                                                       9.78
Refinance - Rate/Term                                                    30.03
--------------------------------------------------------------------------------
Total:                                                                  100.00%
--------------------------------------------------------------------------------


5. Occupancy



--------------------------------------------------------------------------------
                                                                      Percentage
Occupancy                                                             By Balance
--------------------------------------------------------------------------------
Investment Property                                                       2.58%
Primary Home                                                             97.42
--------------------------------------------------------------------------------
Total:                                                                  100.00%
--------------------------------------------------------------------------------


6. Original Prepayment Penalty Term



--------------------------------------------------------------------------------
                                                                      Percentage
Original Prepayment Penalty Term                                      By Balance
--------------------------------------------------------------------------------
0                                                                        18.08%
6                                                                         1.13
12                                                                        2.33
24                                                                       67.05
30                                                                        0.02
36                                                                        11.4
--------------------------------------------------------------------------------
Total:                                                                  100.00%
--------------------------------------------------------------------------------




Largest 10 Loans



                                                                                                                          Orig
                                                                                                                        Prepay
Balance       State MSA    Loan Type       LTV   DTI  FICO         Prop Type               Purpose          Occ Codes  Penalty
------------------------------------------------------------------------------------------------------------------------------
$1,196,729.87 CA        5/1 TREASURY ARM  62.34 46.32  648 Planned Unit Development Refinance - Rate/Term Primary Home      36
$1,000,000.00 FL        2/28 LIBOR IO ARM    80 48.96  669 Single Family Detached   Purchase              Primary Home      12
$  879,200.00 CA        2/28 LIBOR IO ARM    80 47.71  615 Planned Unit Development Purchase              Primary Home      24
$  867,000.00 IL        2/28 LIBOR IO ARM    85 48.03  697 Single Family Detached   Purchase              Primary Home       0
$  850,000.00 CA        3/27 LIBOR IO ARM    85 47.04  761 Two-to-Four Family       Refinance - Rate/Term Primary Home      24
$  840,000.00 CA        Fixed IO             80 29.41  610 Single Family Detached   Refinance - Cashout   Primary Home      36
$  825,000.00 VA        2/28 LIBOR IO ARM 84.62 34.69  667 Single Family Detached   Refinance - Rate/Term Primary Home      24
$  810,000.00 CA        3/27 LIBOR IO ARM    90 38.71  660 Planned Unit Development Refinance - Cashout   Primary Home      36
$  800,000.00 MD        2/28 LIBOR IO ARM 84.21 35.15  708 Planned Unit Development Refinance - Rate/Term Primary Home       0
$  795,000.00 CA        2/28 LIBOR IO ARM 88.83 49.74  730 Two-to-Four Family       Purchase              Primary Home      24


--------------------------------------------------------------------------------
Disclaimer:

The above analysis is not intended to be a prospectus and any investment
decision with respect to the security should be made by you based solely upon
all of the information contained in the final prospectus. Under no circumstances
shall the information presented constitute an offer to sell or the solicitation
of an offer to buy nor shall there be any sale of the securities in any
jurisdiction in which such offer, solicitation or sale would be unlawful prior
to registration or qualification under the securities laws of such jurisdiction.
The securities may not be sold nor may an offer to buy be accepted prior to the
delivery of a final prospectus relating to the securities. The above preliminary
description of the underlying assets has been provided by the issuer and has not
been independently verified by Credit Suisse First Boston. All information
described above is preliminary, limited in nature and subject to completion or
amendment. Credit Suisse First Boston makes no representations that the above
referenced security will actually perform as described in any scenario
presented. This memorandum is for informative purposes only. Under no
circumstances is it to be used or considered as an offer to sell, or a
solicitation of an offer to buy, any security. Additional information is
available upon request. Results based on hypothetical projections or past
performance have certain inherent limitations. There is no certainty that the
parameters and assumptions used can be duplicated with actual trades. Any
results shown do not reflect the impact of commissions and/or fees, unless
stated. Financial futures and options are not appropriate for all investors.
Their relative merits should be carefully weighed. Where information has been
obtained from outside sources, it is believed to be reliable but is not
represented to be accurate or complete. This document may not be reproduced in
whole or in part or otherwise made available without our written consent. This
firm may from time to time perform investment banking for, or solicit investment
banking or other business from, any company mentioned. We or our employees may
from time to time have a long or short position in any contract or security
discussed.
--------------------------------------------------------------------------------






Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3

--------------------------------------------------------------------------------
Disclaimer:

The above analysis is not intended to be a prospectus and any investment
decision with respect to the security should be made by you based solely upon
all of the information contained in the final prospectus. Under no circumstances
shall the information presented constitute an offer to sell or the solicitation
of an offer to buy nor shall there be any sale of the securities in any
jurisdiction in which such offer, solicitation or sale would be unlawful prior
to registration or qualification under the securities laws of such jurisdiction.
The securities may not be sold nor may an offer to buy be accepted prior to the
delivery of a final prospectus relating to the securities. The above preliminary
description of the underlying assets has been provided by the issuer and has not
been independently verified by Credit Suisse First Boston. All information
described above is preliminary, limited in nature and subject to completion or
amendment. Credit Suisse First Boston makes no representations that the above
referenced security will actually perform as described in any scenario
presented. This memorandum is for informative purposes only. Under no
circumstances is it to be used or considered as an offer to sell, or a
solicitation of an offer to buy, any security. Additional information is
available upon request. Results based on hypothetical projections or past
performance have certain inherent limitations. There is no certainty that the
parameters and assumptions used can be duplicated with actual trades. Any
results shown do not reflect the impact of commissions and/or fees, unless
stated. Financial futures and options are not appropriate for all investors.
Their relative merits should be carefully weighed. Where information has been
obtained from outside sources, it is believed to be reliable but is not
represented to be accurate or complete. This document may not be reproduced in
whole or in part or otherwise made available without our written consent. This
firm may from time to time perform investment banking for, or solicit investment
banking or other business from, any company mentioned. We or our employees may
from time to time have a long or short position in any contract or security
discussed.
--------------------------------------------------------------------------------



         PLEASE DO NOT ALTER THIS PAGE. IT IS CUT DIRECTLY INTO A MODEL.



LTV(1) :                                      Fixed $         2/28 $            3/27 $      5/25 $       Other
----------------------------------------   -------------   --------------   -------------   ------   -------------
                           Below or = 70    7,495,474.23    34,399,920.13    7,119,467.54        0    2,601,553.79
                             70.01 to 75    3,922,249.42    22,011,100.67    3,671,959.57        0    1,081,300.00
                             75.01 to 80   31,307,858.82   341,069,666.57   44,123,782.29        0    3,327,222.22
                             80.01 to 85    8,626,065.18   136,404,229.10   16,043,741.69        0    2,099,500.00
                             85.01 to 90    7,716,627.76   114,850,744.02   19,890,191.05        0    2,264,117.91
                             90.01 to 95    2,877,225.28    25,216,959.62    4,198,262.13        0      503,000.00
                            95.01 to 100   32,509,726.36                0               0        0               0
                             100.01 plus               0                0               0        0               0

FICO

                          below or = 549    1,493,742.11    20,044,168.49    2,477,400.45        0               0
                              550 to 574    3,687,275.50    50,303,951.31    8,282,732.41        0      160,000.00
                              575 to 599    8,472,902.46    67,346,439.16   10,072,695.01        0      367,500.00
                              600 to 624   12,466,978.84    95,980,902.78   17,299,567.59        0    1,272,470.00
                              625 to 649   11,956,748.58    93,975,225.84   16,824,862.04        0    2,830,561.79
                              650 to 674   12,423,917.48   121,893,845.52   12,781,063.43        0    3,406,360.68
                              675 to 699   18,028,567.71   101,266,973.80   12,572,925.88        0    2,448,301.44
                                700 plus   25,925,094.37   123,141,113.20   14,736,157.46        0    1,391,500.00

Property Type:

                  Single-Family Detached   66,781,757.00   458,094,588.97   59,846,424.63        0    8,150,684.48
                                     PUD   15,306,719.13   115,715,608.45   15,871,745.74        0    2,784,909.43
                                   Condo    4,908,307.09    48,759,162.65    7,529,798.90        0      341,100.00
                         >=3 Family Det.    2,821,443.08    18,094,201.18    4,646,440.80        0      600,000.00
                      Manufactured House               0                0      405,000.00        0               0
                                   Other    4,637,000.75    33,289,058.86    6,747,994.19        0               0

Purpose:

                                Purchase   55,870,412.60   422,098,629.17   46,349,542.98        0    2,512,990.25
                     Refinance rate/term   27,936,328.79   192,482,402.81   35,689,897.64        0    6,777,683.67
Cash Out Refi (COF) Below or = 70 LTV(1)    2,411,758.81     7,633,710.83    2,320,390.48        0      398,000.00
            COF with LTV(1)  70.01 to 75      688,656.03     3,418,372.03      765,045.85        0      367,500.00
            COF with LTV(1)  75.01 to 80    4,866,812.43    15,049,444.40    4,181,203.24        0      610,520.00
            COF with LTV(1)  80.01 to 85      541,706.64    10,803,183.71    2,392,418.94        0      697,000.00
            COF with LTV(1)  85.01 to 90    1,153,096.78    19,777,080.14    2,921,405.12        0      513,000.00
            COF with LTV(1)  90.01 to 95       93,622.78     2,689,797.01      427,500.00        0               0
            COF with LTV(1) 95.01 to 100      892,832.17                0               0        0               0
            COF with LTV(1)  100.01 plus               0                0               0        0               0
                                   Other               0                0               0        0               0

Occupancy Status:

                          Owner Occupied   92,570,100.30   656,422,400.98   92,503,163.32        0   11,276,693.92
                                2nd Home               0                0               0        0               0
                              Investment    1,885,126.75    17,530,219.13    2,544,240.94        0      600,000.00
                                   Other               0                0               0        0               0




MH Stratification:
------------------
Total Balance        405,000.00
% Pool Balance             0.05
Ave. FICO                   637
Ave. LTV(1)                  70
% Full Docs                   0




Silent Seconds Stratification:
------------------------------
Total Balance                    490,705,885.25
% Pool Balance                            56.06
Ave. FICO                                   667
Ave. LTV(1)                               82.00
% Full Docs                               34.15




Second Lien Stratification:
---------------------------
Total Balance                 33,944,259.60
% Pool Balance                         3.88
Ave. FICO                            715.00
Ave. LTV(1)                          100.00
% Full Docs                            8.12




LTV(1) Above 90 Stratification:
-------------------------------
Total Balance                     65,305,173.40
% Pool Balance                             7.46
Ave. FICO                                   672
Ave. LTV(1)                                  97
% Full Docs                               37.72


1. LTV used is Original LTV for 1st Liens and CLTV for 2nd Liens




Loan Balance

                     Below or = 50,000   10,494,069.62       548,298.07       99,916.71   0               0
                  50,000.01 to 100,000   24,292,379.67    34,775,778.18    5,799,641.00   0      153,137.91
                 100,000.01 to 150,000   20,094,876.92    75,655,181.59   11,660,323.81   0    1,080,714.05
                 150,000.01 to 200,000    9,487,993.76    88,946,645.70   15,769,431.84   0      864,108.29
                 200,000.01 to 400,000   21,351,847.88   298,388,142.55   40,963,474.75   0    4,050,803.80
                 400,000.01 to 500,000    4,518,031.91    96,297,353.59    9,732,404.07   0      917,600.00
                 500,000.01 to 600,000    2,738,527.30    43,719,252.03    5,290,613.58   0    2,235,600.00
               600,000.01 to 1,000,000    1,477,500.00    35,621,968.40    5,731,598.50   0    1,378,000.00
                1,000,000.01 and above               0                0               0   0    1,196,729.87

Loan Term

                             >30 Years               0                0               0   0               0
                              30 Years   58,593,837.76   673,952,620.11   95,047,404.26   0   11,876,693.92
                              20 Years      896,963.24                0               0   0               0
                              15 Years   34,964,426.05                0               0   0               0
                                 Other               0                0               0   0               0

Documentation Type

                    Full Documentation   43,419,137.31   253,121,409.87   48,149,303.39   0    7,497,323.63
                 Limited Documentation      510,807.83     3,400,686.11               0   0               0
 Stated Docs with LTV(1) below or = 70    1,850,148.52    14,429,948.01    2,891,457.08   0      600,000.00
   Stated Docs with LTV(1) 70.01 to 75      674,441.87     9,963,435.79    1,439,328.01   0               0
   Stated Docs with LTV(1) 75.01 to 80    6,246,471.36   194,465,366.17   22,106,851.08   0    1,249,470.29
   Stated Docs with LTV(1) 80.01 to 85    1,673,105.21    90,421,114.79    8,721,236.11   0    1,003,000.00
   Stated Docs with LTV(1) 85.01 to 90    1,237,850.25    48,346,126.45    6,164,120.40   0      845,100.00
   Stated Docs with LTV(1) 90.01 to 95    1,529,113.82     5,126,058.90      457,689.94   0      503,000.00
  Stated Docs with LTV(1) 95.01 to 100   29,024,771.73                0               0   0               0
  Stated Docs with LTV(1) above 100.01               0                0               0   0               0
                                 Other    8,289,379.16    54,678,474.02    5,117,418.26   0      178,800.00

Lien Status

                              1st Lien   60,510,967.45   673,952,620.11   95,047,404.26   0   11,876,693.92
Second Liens with LTV(1) below or = 85       99,400.00                0               0   0               0
  Second Liens with LTV(1) 85.01 to 90      129,812.13                0               0   0               0
  Second Liens with LTV(1) 90.01 to 95    1,205,321.11                0               0   0               0
 Second Liens with LTV(1) 95.01 to 100   32,509,726.36                0               0   0               0
 Second Liens with LTV(1) above 100.01               0                0               0   0               0

Interest Only

               Dollar of Mortgage Type    9,334,011.68   457,723,019.78   59,447,365.59   0    9,414,839.46
                             Ave. FICO          651.00              663             657   0             663
                           Ave. LTV(1)           80.22            82.01           80.88   0           80.94
                         % Stated Docs           17.98            62.69           52.39   0           40.16
                           % Full Docs           57.73            29.47            44.3   0           57.94








                                               100 PPC       100 PPC       125 PPC
Period   One-Month LIBOR   Six-Month LIBOR   XS- fwd+100   XS- fwd+200   XS- fwd+100
------------------------------------------------------------------------------------
    1        4.051000          4.376000          0.224         0.224         0.224
    2        4.186866          4.458283          1.657         1.313         1.658
    3        4.336182          4.530843          1.524         1.102         1.527
    4        4.407654          4.583801          1.937         1.517         1.939
    5        4.449696          4.623884          1.442         0.992         1.449
    6        4.588465          4.660339          1.528         1.085         1.537
    7        4.535758          4.665910          1.478         1.093         1.493
    8        4.614218          4.684693          1.591         1.216         1.609
    9        4.648016          4.698951          1.466         1.107         1.492
   10        4.643626          4.716205          1.421         1.030         1.451
   11        4.664273          4.742604          1.561         1.184         1.595
   12        4.621255          4.773285          1.468         1.109         1.512
   13        4.646304          4.818188          1.542         1.147         1.584
   14        4.698131          4.864593          1.336         0.909         1.388
   15        4.749552          4.906517          1.333         0.923         1.397
   16        4.798972          4.942326          1.763         1.360         1.813
   17        4.844791          4.970388          1.339         0.961         1.427
   18        4.885411          4.989068          1.432         1.039         1.518
   19        4.919234          4.996733          1.361         1.018         1.480
   20        4.944662          4.992233          1.262         0.784         1.354
   21        4.960096          4.976509          1.022         0.505         1.121
   22        4.963940          4.951408          0.996         0.469         1.110
   23        4.954594          4.919244          1.954         1.225         1.992
   24        4.930462          4.882792          2.281         1.521         2.311
   25        4.892787          4.845290          2.563         1.816         2.593
   26        4.852234          4.809951          2.981         2.250         3.052
   27        4.812542          4.778370          3.017         2.299         3.093
   28        4.774839          4.751693          3.521         2.765         3.554
   29        4.740252          4.731067          3.353         2.609         3.401
   30        4.709906          4.717641          3.802         3.110         3.834
   31        4.684929          4.712561          3.406         2.611         3.399
   32        4.666447          4.716589          3.887         3.116         3.869
   33        4.655587          4.728853          3.605         2.836         3.597
   34        4.653477          4.747865          3.651         2.889         3.643
   35        4.661242          4.771884          4.279         3.704         4.248
   36        4.680012          4.798919          4.033         3.538         4.020
   37        4.708632          4.826725          4.313         3.834         4.119
   38        4.738616          4.853194          4.036         3.602         3.920
   39        4.767455          4.877599          3.878         3.348         3.685
   40        4.794796          4.899579          4.934         4.443         4.736
   41        4.820287          4.918776          3.985         3.614         3.794
   42        4.843576          4.934829          4.320         4.031         4.144
   43        4.864311          4.947377          3.978         3.666         3.814
   44        4.882140          4.956207          4.335         4.136         4.171
   45        4.896711          4.961713          3.994         3.769         3.832
   46        4.907671          4.964498          3.998         3.771         3.838
   47        4.914668          4.965239          4.360         4.182         4.201
   48        4.917351          4.964684          4.033         3.828         3.875
   49        4.916224          4.963652          4.365         4.182         4.210





   50        4.914505          4.962889          4.051         3.851         3.896
   51        4.913084          4.962602          4.053         3.850         3.898
   52        4.912028          4.962862          5.121         5.007         4.971
   53        4.911406          4.963737          4.056         3.883         3.902
   54        4.911286          4.965298          4.389         4.238         4.238
   55        4.911734          4.967612          4.058         3.879         3.906
   56        4.912820          4.970724          4.393         4.248         4.244
   57        4.914611          4.974570          4.061         3.888         3.910
   58        4.917174          4.979053          4.060         3.884         3.621
   59        4.920579          4.984062          4.403         4.249         3.972
   60        4.924891          4.989480          4.078         3.895         3.649
   61        4.930028          4.995178          4.406         4.246         3.988
   62        4.935431          5.001042          4.079         3.890         3.664
   63        4.940959          5.007056          4.073         3.881         3.666
   64        4.946622          5.013228          5.146         5.029         4.767
   65        4.952427          5.019566          4.076         3.877         3.686
   66        4.958383          5.026079          4.413         4.235         4.040
   67        4.964497          5.032775          4.072         3.866         3.702
   68        4.970778          5.039644          4.412         4.226         4.062
   69        4.977235          5.046609          4.069         3.856         3.724
   70        4.983874          5.053567          4.066         3.849         3.734
   71        4.990704          5.060411          4.418         4.221         4.109
   72        4.997733          5.067029          4.085         3.861         3.777
   73        5.004870          5.073303          4.421         4.217         4.142
   74        5.011707          5.079125          4.087         3.855         3.821
   75        5.018124          5.084453          3.763         3.528         3.851
   76        5.024095          5.089263          4.467         4.276         4.625
   77        5.029594          5.093527          3.771         3.526         3.931
   78        5.034597          5.097222          4.118         3.892         4.335
   79        5.039080          5.100321          3.776         3.522         4.016
   80        5.043016          5.102829          4.125         3.890         4.425
   81        5.046382          5.104879          3.783         3.520         4.108
   82        5.049152          5.106640          3.787         3.520         4.159
   83        5.051301          5.108292          4.146         3.895         4.586
   84        5.052804          5.110022          3.811         3.532         4.281
   85        5.053818          5.112028          4.166         3.905         4.711
   86        5.055059          5.114483          3.829         3.541         4.408
   87        5.056730          5.117444          3.836         3.543         4.475
   88        5.058857          5.120938          4.972         4.747         5.758
   89        5.061467          5.124992          3.856         3.550         4.623
   90        5.064586          5.129633          4.220         3.932         5.080
   91        5.068240          5.134887          3.874         3.559         4.775
   92        5.072456          5.140765          4.242         3.942         5.248
   93        5.077258          5.147209          3.894         3.567         4.947
   94        5.082674          5.154144          3.903         3.571         5.039
   95        5.088730          5.161487          4.286         3.964         5.546
   96        5.095452          5.169153          3.948         3.599         5.259
   97        5.102770          5.177054          4.332         4.002         5.773
   98        5.110314          5.185111          4.002         3.646         5.493
   99        5.117993          5.193312          4.026         3.668         5.617
  100        5.125808          5.201659          5.224         4.933         7.094
  101        5.133762          5.210153          4.093         3.722         5.904
  102        5.141857          5.218798          4.496         4.141         6.490
  103        5.150096          5.227595          4.157         3.779         6.221





  104        5.158480          5.236519          4.566         4.202         6.843
  105        5.167013          5.245425          4.228         3.842         6.587
  106        5.175695          5.254137          4.263         3.875         6.788
  107        5.184530          5.262468          4.690         4.313         7.481
  108        5.193520          5.270229          4.363         3.962         7.259
  109        5.202498          5.277223          4.779         4.398         7.989
  110        5.210779          5.283275          4.452         4.046         7.791
  111        5.218163          5.288321          4.497         4.090         8.088
  112        5.224615          5.292325          5.774         5.429        10.049
  113        5.230100          5.295252          4.607         4.191         8.773
  114        5.234583          5.297065          5.052         4.653         9.698
  115        5.238029          5.297730          4.726         4.306         9.586
  116        5.240403          5.297283          5.178         4.776        10.620
  117        5.241671          5.296055          4.850         4.428        10.569
  118        5.241797          5.294462          4.917         4.494        11.138
  119        5.240747          5.292935          5.384         4.981        12.393
  120        5.238486          5.291919          5.063         4.640        12.477
  121        5.235403          5.291875          5.545         5.141        13.941
  122        5.233192          5.293202          5.226         4.803        14.160
  123        5.232319          5.296024          5.312         4.889        15.171
  124        5.232833          5.300390          6.248         5.864        17.926
  125        5.234785          5.306351          5.497         5.071        17.659
  126        5.238223          5.313958          6.011         5.603        20.082
  127        5.243197          5.323261          5.694         5.266        21.035
  128        5.249757          5.334230          6.226         5.814        24.229
  129        5.257951          5.346508          5.909         5.479        25.871
  130        5.267828          5.359642          6.021         5.590        29.155
  131        5.279440          5.373167          6.592         6.168        34.714
  132        5.292834          5.386601          6.287         5.839        38.881
  133        5.307586          5.399449          6.857         6.429        48.178
  134        5.321823          5.411281          6.560         6.106        57.362
  135        5.335042          5.421979          6.703         6.250        74.655
  136        5.347207          5.431508          8.339         7.945       118.239
  137        5.358282          5.439830          7.043         6.579       181.260
  138        5.368230          5.446908          7.702         7.253       611.425
  139        5.377015          5.452705          7.416         6.951         0.000
  140        5.384602          5.457223          8.114         7.664         0.000
  141        5.390954          5.460627          7.843         7.378         0.000
  142        5.396035          5.463124          8.076         7.613         0.000
  143        5.399809          5.464932          8.846         8.398         0.000
  144        5.402240          5.466272          8.606         8.141         0.000
  145        5.403524          5.467374          9.423         8.979         0.000
  146        5.404569          5.468433          9.204         8.744         0.000
  147        5.405607          5.469491          9.536         9.079         0.000
  148        5.406641          5.470550         11.703        11.309         0.000
  149        5.407672          5.471613         10.279         9.830         0.000
  150        5.408703          5.472682         11.285        10.858         0.000
  151        5.409736          5.473760         11.144        10.704         0.000
  152        5.410775          5.474853         12.255        11.838         0.000
  153        5.411821          5.475988         12.165        11.735         0.000
  154        5.412876          5.477194         12.746        12.322         0.000
  155        5.413944          5.478502         14.066        13.666         0.000
  156        5.415026          5.479944         14.090        13.676         0.000
  157        5.416152          5.481552         15.594        15.207         0.000





  158        5.417430          5.483355         15.729        15.328         0.000
  159        5.418894          5.485364         16.690        16.298         0.000
  160        5.420549          5.487586         20.423        20.104         0.000
  161        5.422403          5.490026         18.996        18.615         0.000
  162        5.424461          5.492693         21.302        20.947         0.000
  163        5.426730          5.495592         21.986        21.615         0.000
  164        5.429216          5.498710         24.870        24.521         0.000
  165        5.431927          5.501951         26.014        25.644         0.000
  166        5.434867          5.505199         28.595        28.219         0.000
  167        5.438045          5.508332         33.014        32.635         0.000
  168        5.441466          5.511227         35.568        35.132         0.000
  169        5.445018          5.513758         41.975        41.500         0.000
  170        5.448231          5.515815         46.659        46.051         0.000
  171        5.450977          5.517369         55.096        54.282         0.000
  172        5.453245          5.518408         72.202        70.965         0.000
  173        5.455027          5.518923         85.519        83.408         0.000
  174        5.456311          5.518901        121.467       117.014         0.000
  175        5.457086          5.518334        185.405       173.448         0.000
  176        5.457344          5.517227        448.717       378.391         0.000
  177        5.457072          5.515651          0.000         0.000         0.000
  178        5.456262          5.513699          0.000         0.000         0.000
  179        5.454902          5.511463          0.000         0.000         0.000
  180        5.452983          5.509038          0.000         0.000         0.000
  181        5.450591          5.506521          0.000         0.000         0.000
  182        5.448104          5.503995          0.000         0.000         0.000
  183        5.445621          5.501480          0.000         0.000         0.000
  184        5.443145          5.498978          0.000         0.000         0.000
  185        5.440677          5.496491          0.000         0.000         0.000
  186        5.438221          5.494022          0.000         0.000         0.000
  187        5.435778          5.491573          0.000         0.000         0.000
  188        5.433351          5.489146          0.000         0.000         0.000
  189        5.430943          5.486745          0.000         0.000         0.000
  190        5.428556          5.484372          0.000         0.000         0.000
  191        5.426192          5.482029          0.000         0.000         0.000
  192        5.423854          5.479719          0.000         0.000         0.000
  193        5.421545          5.477445          0.000         0.000         0.000
  194        5.419266          5.475208          0.000         0.000         0.000
  195        5.417021          5.473011          0.000         0.000         0.000
  196        5.414812          5.470858          0.000         0.000         0.000
  197        5.412641          5.468749          0.000         0.000         0.000
  198        5.410510          5.466689          0.000         0.000         0.000
  199        5.408423          5.464679          0.000         0.000         0.000
  200        5.406381          5.462721          0.000         0.000         0.000
  201        5.404387          5.460819          0.000         0.000         0.000
  202        5.402443          5.458974          0.000         0.000         0.000
  203        5.400552          5.457191          0.000         0.000         0.000
  204        5.398716          5.455471          0.000         0.000         0.000
  205        5.396938          5.453816          0.000         0.000         0.000
  206        5.395221          5.452231          0.000         0.000         0.000
  207        5.393567          5.450716          0.000         0.000         0.000
  208        5.391979          5.449274          0.000         0.000         0.000
  209        5.390460          5.447906          0.000         0.000         0.000
  210        5.389012          5.446614          0.000         0.000         0.000
  211        5.387636          5.445401          0.000         0.000         0.000





  212        5.386334          5.444267          0.000         0.000         0.000
  213        5.385105          5.443218          0.000         0.000         0.000
  214        5.383953          5.442259          0.000         0.000         0.000
  215        5.382881          5.441395          0.000         0.000         0.000
  216        5.381890          5.440631          0.000         0.000         0.000
  217        5.380985          5.439973          0.000         0.000         0.000
  218        5.380180          5.439423          0.000         0.000         0.000
  219        5.379478          5.438976          0.000         0.000         0.000
  220        5.378884          5.438626          0.000         0.000         0.000
  221        5.378399          5.438364          0.000         0.000         0.000
  222        5.378026          5.438183          0.000         0.000         0.000
  223        5.377759          5.438075          0.000         0.000         0.000
  224        5.377561          5.438039          0.000         0.000         0.000
  225        5.377423          5.438108          0.000         0.000         0.000
  226        5.377348          5.438322          0.000         0.000         0.000
  227        5.377336          5.438722          0.000         0.000         0.000
  228        5.377391          5.439351          0.000         0.000         0.000
  229        5.377550          5.440250          0.000         0.000         0.000
  230        5.377965          5.441432          0.000         0.000         0.000
  231        5.378679          5.442787          0.000         0.000         0.000
  232        5.379696          5.444172          0.000         0.000         0.000
  233        5.381023          5.445441          0.000         0.000         0.000
  234        5.382665          5.446447          0.000         0.000         0.000
  235        5.384486          5.447039          0.000         0.000         0.000
  236        5.385916          5.447105          0.000         0.000         0.000
  237        5.386805          5.446692          0.000         0.000         0.000
  238        5.387144          5.445891          0.000         0.000         0.000
  239        5.386925          5.444794          0.000         0.000         0.000
  240        5.386139          5.443492          0.000         0.000         0.000
  241        5.384870          5.442083          0.000         0.000         0.000
  242        5.383494          5.440644          0.000         0.000         0.000
  243        5.382106          5.439194          0.000         0.000         0.000
  244        5.380704          5.437732          0.000         0.000         0.000
  245        5.379291          5.436259          0.000         0.000         0.000
  246        5.377867          5.434776          0.000         0.000         0.000
  247        5.376431          5.433282          0.000         0.000         0.000
  248        5.374985          5.431779          0.000         0.000         0.000
  249        5.373528          5.430266          0.000         0.000         0.000
  250        5.372062          5.428745          0.000         0.000         0.000
  251        5.370587          5.427216          0.000         0.000         0.000
  252        5.369103          5.425678          0.000         0.000         0.000
  253        5.367610          5.424133          0.000         0.000         0.000
  254        5.366110          5.422582          0.000         0.000         0.000
  255        5.364602          5.421024          0.000         0.000         0.000
  256        5.363088          5.419460          0.000         0.000         0.000
  257        5.361566          5.417890          0.000         0.000         0.000
  258        5.360039          5.416316          0.000         0.000         0.000
  259        5.358506          5.414737          0.000         0.000         0.000
  260        5.356968          5.413153          0.000         0.000         0.000
  261        5.355425          5.411566          0.000         0.000         0.000
  262        5.353878          5.409976          0.000         0.000         0.000
  263        5.352327          5.408383          0.000         0.000         0.000
  264        5.350773          5.406788          0.000         0.000         0.000
  265        5.349216          5.405191          0.000         0.000         0.000





  266        5.347656          5.403593          0.000         0.000         0.000
  267        5.346094          5.401994          0.000         0.000         0.000
  268        5.344531          5.400394          0.000         0.000         0.000
  269        5.342967          5.398794          0.000         0.000         0.000
  270        5.341402          5.397195          0.000         0.000         0.000
  271        5.339836          5.395597          0.000         0.000         0.000
  272        5.338271          5.394000          0.000         0.000         0.000
  273        5.336707          5.392405          0.000         0.000         0.000
  274        5.335144          5.390813          0.000         0.000         0.000
  275        5.333582          5.389223          0.000         0.000         0.000
  276        5.332023          5.387637          0.000         0.000         0.000
  277        5.330466          5.386054          0.000         0.000         0.000
  278        5.328912          5.384475          0.000         0.000         0.000
  279        5.327361          5.382902          0.000         0.000         0.000
  280        5.325815          5.381333          0.000         0.000         0.000
  281        5.324272          5.379770          0.000         0.000         0.000
  282        5.322735          5.378212          0.000         0.000         0.000
  283        5.321202          5.376662          0.000         0.000         0.000
  284        5.319675          5.375118          0.000         0.000         0.000
  285        5.318155          5.373582          0.000         0.000         0.000
  286        5.316640          5.372053          0.000         0.000         0.000
  287        5.315133          5.370533          0.000         0.000         0.000
  288        5.313634          5.369022          0.000         0.000         0.000
  289        5.312142          5.367520          0.000         0.000         0.000
  290        5.310659          5.366027          0.000         0.000         0.000
  291        5.309184          5.364545          0.000         0.000         0.000
  292        5.307719          5.363074          0.000         0.000         0.000
  293        5.306264          5.361614          0.000         0.000         0.000
  294        5.304818          5.360165          0.000         0.000         0.000
  295        5.303384          5.358728          0.000         0.000         0.000
  296        5.301960          5.357304          0.000         0.000         0.000
  297        5.300548          5.355893          0.000         0.000         0.000
  298        5.299148          5.354495          0.000         0.000         0.000
  299        5.297761          5.353111          0.000         0.000         0.000
  300        5.296386          5.351741          0.000         0.000         0.000
  301        5.295025          5.350386          0.000         0.000         0.000
  302        5.293677          5.349047          0.000         0.000         0.000
  303        5.292344          5.347723          0.000         0.000         0.000
  304        5.291025          5.346415          0.000         0.000         0.000
  305        5.289722          5.345124          0.000         0.000         0.000
  306        5.288434          5.343850          0.000         0.000         0.000
  307        5.287162          5.342594          0.000         0.000         0.000
  308        5.285907          5.341356          0.000         0.000         0.000
  309        5.284668          5.340136          0.000         0.000         0.000
  310        5.283447          5.338935          0.000         0.000         0.000
  311        5.282244          5.337754          0.000         0.000         0.000
  312        5.281060          5.336592          0.000         0.000         0.000
  313        5.279894          5.335451          0.000         0.000         0.000
  314        5.278747          5.334331          0.000         0.000         0.000
  315        5.277620          5.333231          0.000         0.000         0.000
  316        5.276513          5.332154          0.000         0.000         0.000
  317        5.275427          5.331099          0.000         0.000         0.000
  318        5.274361          5.330066          0.000         0.000         0.000
  319        5.273317          5.329057          0.000         0.000         0.000





  320        5.272295          5.328071          0.000         0.000         0.000
  321        5.271296          5.327109          0.000         0.000         0.000
  322        5.270319          5.326171          0.000         0.000         0.000
  323        5.269365          5.325259          0.000         0.000         0.000
  324        5.268436          5.324372          0.000         0.000         0.000
  325        5.267530          5.323511          0.000         0.000         0.000
  326        5.266649          5.322677          0.000         0.000         0.000
  327        5.265793          5.321869          0.000         0.000         0.000
  328        5.264963          5.321088          0.000         0.000         0.000
  329        5.264159          5.320335          0.000         0.000         0.000
  330        5.263382          5.319611          0.000         0.000         0.000
  331        5.262631          5.318914          0.000         0.000         0.000
  332        5.261908          5.318246          0.000         0.000         0.000
  333        5.261211          5.317608          0.000         0.000         0.000
  334        5.260543          5.316999          0.000         0.000         0.000
  335        5.259903          5.316422          0.000         0.000         0.000
  336        5.259292          5.315877          0.000         0.000         0.000
  337        5.258710          5.315365          0.000         0.000         0.000
  338        5.258160          5.314885          0.000         0.000         0.000
  339        5.257642          5.314438          0.000         0.000         0.000
  340        5.257156          5.314024          0.000         0.000         0.000
  341        5.256703          5.313640          0.000         0.000         0.000
  342        5.256283          5.313287          0.000         0.000         0.000
  343        5.255896          5.312963          0.000         0.000         0.000
  344        5.255538          5.312669          0.000         0.000         0.000
  345        5.255207          5.312409          0.000         0.000         0.000
  346        5.254903          5.312187          0.000         0.000         0.000
  347        5.254629          5.312010          0.000         0.000         0.000
  348        5.254383          5.311882          0.000         0.000         0.000
  349        5.254170          5.311809          0.000         0.000         0.000
  350        5.254010          5.311791          0.000         0.000         0.000
  351        5.253907          5.311817          0.000         0.000         0.000
  352        5.253863          5.311868          0.000         0.000         0.000
  353        5.253877          5.311927          0.000         0.000         0.000
  354        5.253951          5.311978          0.000         0.000         0.000
  355        5.254068          5.312001          0.000         0.000         0.000
  356         5.25416          5.312001          0.000         0.000         0.000
  357        5.254208          5.312001          0.000         0.000         0.000
  358        5.254213          5.312001          0.000         0.000         0.000
  359        5.254173          5.312001          0.000         0.000         0.000
  360        5.254089          5.312001          0.000         0.000         0.000

Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
4,402 records
Balance: 875,331,945

Selection Criteria: All records
Table of Contents

DTI Distribution
Loan Balance Distribution
Product- IO Loans
Product- IO ARM Loans

DTI Distribution	Loan Count	Outstanding Balance	% by Balance	Weighted Average Gross Coupon	MI Fee
DTI < 10.00	18	3,818,727.93	0.436	7.673	N
DTI 10.00 - 19.99	92	18,768,910.73	2.144	7.279	N
DTI 20.00 - 29.99	364	56,351,888.15	6.438	7.427	N
DTI 30.00 - 39.99	1,137	201,888,012.09	23.064	7.322	N
DTI 40.00 - 49.99	2,559	544,832,371.40	62.243	7.253	N
DTI 50.00 - 59.99	232	49,672,035.04	5.675	7.177	N
Total:	4,402	875,331,945.33	100.000	7.278	N

Loan Balance Distribution	Loan Count	Outstanding Balance	% by Balance	Weighted Average Gross Coupon	MI Fee
1 - 25,000	58	1,249,051.86	0.143	9.744	N
25,001 - 50,000	260	9,893,232.54	1.130	9.858	N
50,001 - 75,000	434	27,302,269.25	3.119	8.824	N
75,001 - 100,000	427	37,718,667.51	4.309	8.232	N
100,001 - 150,000	873	108,491,096.38	12.394	7.603	N
150,001 - 200,000	663	115,068,179.58	13.146	7.304	N
200,001 - 250,000	414	92,606,743.54	10.580	7.271	N
250,001 - 300,000	336	91,501,183.90	10.453	7.159	N
300,001 - 350,000	293	94,265,899.42	10.769	6.961	N
350,001 - 400,000	231	86,380,442.11	9.868	6.955	N
400,001 - 450,000	142	60,329,619.26	6.892	7.069	N
450,001 - 500,000	107	51,135,770.30	5.842	6.883	N
500,001 - 550,000	55	28,746,391.57	3.284	6.833	N
550,001 - 600,000	44	25,237,601.33	2.883	6.890	N
600,001 - 650,000	30	18,871,372.33	2.156	6.801	N
650,001 - 700,000	11	7,455,123.26	0.852	6.836	N
700,001 - 750,000	13	9,427,971.31	1.077	6.975	N
750,001 - 800,000	3	2,383,400.00	0.272	6.846	N
800,001 - 850,000	4	3,325,000.00	0.380	6.762	N
850,001 - 900,000	2	1,746,200.00	0.199	6.872	N
950,001 - 1,000,000	1	1,000,000.00	0.114	6.850	N
1,000,001 >=	1	1,196,729.87	0.137	6.500	N
Total:	4,402	875,331,945.33	100.000	7.278	N

Product- IO Loans	WA IO Original Term	Number of Loans	Total Loan Balance	Avg Loan Balance	% of Total IO	WA FICO	WA LTV(1)	% Owner Occupied	% Purchase	WA DTI	% Full Doc	% Second Lien
2/28 LIBOR IO ARM	60	1608	457,723,019.78	284,653.62	85.41	663	82.01	97.70	66.07	42.90	29.47	0.00
3/27 LIBOR IO ARM	60	219	59,447,365.59	271,449.16	11.09	657	80.88	97.44	47.88	41.79	44.30	0.00
5/1 TREASURY IO ARM	60	31	9,414,839.46	303,704.50	1.76	663	80.94	93.63	19.83	39.57	57.94	0.00
Fixed IO	60	37	9,334,011.68	252,270.59	1.74	651	80.22	92.20	40.82	42.09	57.73	0.00
Total:	60	1895	535,919,236.51	282,806.98	100.00	662	81.83	97.50	62.80	42.70	32.11	0.00

4. Product- IO ARM Loans

Product- IO ARM Loans	Initial Cap 1.000 1.499	Initial Cap 1.500 1.999	Initial Cap 2.000 2.499	Initial Cap 2.500 2.999	Initial Cap 3.000 3.499	Initial Cap 3.500 3.999	Initial Cap 4.000 4.499	Initial Cap 4.500 4.999	Initial Cap 5.000 5.499	Initial Cap 5.500 5.999
2/28 LIBOR IO ARM	0.00	0.00	0.00	0.00	457,723,019.78	0.00	0.00	0.00	0.00	0.00
3/27 LIBOR IO ARM	0.00	0.00	0.00	0.00	59,447,365.59	0.00	0.00	0.00	0.00	0.00
5/1 TREASURY IO ARM	0.00	0.00	9,414,839.46	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Total:	0.00	0.00	9,414,839.46	0.00	517,170,385.37	0.00	0.00	0.00	0.00	0.00

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Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 23, 2005 18:16

Disclaimer:This material is provided to you solely for informational purposes, is intended for your use only and does not constitute an offer or commitment, a solicitation of an offer or commitment, or any advice or recommendation, to enter into or conclude any transaction (whether on the indicative terms shown or otherwise). This material has been prepared by CSFB based on assumptions and parameters determined by it in good faith. It is important that you (recipient) understand that those assumptions and parameters are not the only ones that might reasonably have been selected or that could apply in connection with the preparation of these materials or an assessment of the transaction described above. A variety of other or additional assumptions or parameters, or other market factors and other considerations, could result in different contemporaneous good faith analyses or assessment of the transaction described above. Past performance should not be taken as an indication or guarantee of future performance, and no representation or warranty, express or implied is made regarding future performance. Opinions and estimates may be changed without notice. The information set forth above has been obtained from or based upon sources believed by CSFB to be reliable, but CSFB does not represent or warrant its accuracy or completeness. This material does not purport to contain all of the information that an interested party may desire. In all cases, interested parties should conduct their own investigation and analysis of the transaction(s) described in these materials and of the data set forth in them. Each person receiving these materials should make an independent assessment of the merits of pursuing a transaction described in these materials and should consult their own professional advisors. CSFB may, from time to time, participate or invest in other financing transactions with the issuers of the securities referred to herein, perform services for or solicit business from such issuers, and/or have a position or effect transactions in the securities or derivatives thereof. Structured securities are complex instruments, typically involve a high degree of risk and are intended for sale only to sophisticated investors who are capable of understanding and assuming the risks involved. The market value of any structured security may be affected by changes in economic, financial and political factors (including, but not limited to, spot and forward interest and exchange rates), time to maturity, market conditions and volatility and the credit quality of any issuer or reference issuer. Any investor interested in purchasing a structured product should conduct its own investigation and analysis of the product and consult with its own professional advisers as to the risks involved in making such a purchase.

Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
4,402 records
Balance: 875,331,945

Selection Criteria: All records
Table of Contents

FICO & Documentation
Original LTV
Principal Balance
APR & FICO
APR & LTV

1. FICO & Documentation

FICO & Documentation	Count	% Full Documentation	% Limited Documentation	% Stated Documentation	% Purchase	% CO Refi	WAC	Avg Prin Bal	Wtd Avg LTV	IO Loans	Silent Seconds
501 - 550	172	2.35	0.00	0.32	0.88	0.45	8.454	160,224.33	77.83	0.15	0.24
551 - 600	861	12.79	0.10	2.42	6.85	2.57	7.598	175,247.93	80.76	6.18	4.89
601 - 650	1221	16.87	0.13	7.83	13.84	4.02	7.152	204,636.19	81.89	17.92	14.33
651 - 700	1299	6.34	0.12	25.12	23.61	2.00	7.127	221,014.42	82.91	24.12	23.91
701 - 750	661	1.41	0.07	12.52	11.51	0.63	7.227	189,247.53	84.63	10.01	9.97
751 - 800	183	0.42	0.02	3.16	3.32	0.11	7.335	180,345.10	84.47	2.65	2.57
801 - 850	5	0.05	0.00	0.16	0.17	0.00	6.747	366,118.38	86.28	0.19	0.15
Total:	4402	40.23	0.45	51.52	60.19	9.78	7.278	198,848.69	82.40	61.22	56.06

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2. Original LTV

Original LTV	Number of Loans	FICO <= 450	FICO 451 - 500	FICO 501 - 550	FICO 551 - 600	FICO 601 - 650	FICO 651 - 700	FICO 701 - 750	FICO 751 - 800	FICO 801 - 850	WA FICO	Avg Prin Bal	WAC	Gross Margin	% Full Documentation	% Limited Documentation	% Stated Documentation	IO Loans	Silent Second
10.01 - 20.00	3	0.00	0.00	0.00	0.01	0.01	0.00	0.00	0.00	0.00	608.44	58304.22	8.607	3.800	0.01	0.00	0.01	0.00	0.00
20.01 - 30.00	1	0.00	0.00	0.01	0.00	0.00	0.00	0.00	0.00	0.00	525.00	59947.82	10.100	6.250	0.00	0.00	0.01	0.00	0.00
30.01 - 40.00	12	0.00	0.00	0.01	0.10	0.04	0.03	0.00	0.01	0.00	618.16	133036.03	7.270	5.592	0.15	0.00	0.03	0.09	0.00
40.01 - 50.00	30	0.00	0.00	0.05	0.33	0.10	0.09	0.00	0.00	0.00	597.11	169735.19	7.264	5.746	0.33	0.00	0.24	0.33	0.01
50.01 - 60.00	64	0.00	0.00	0.11	0.66	0.36	0.12	0.06	0.00	0.00	601.00	179727.60	7.165	5.677	0.87	0.00	0.40	0.72	0.02
60.01 - 70.00	156	0.00	0.00	0.54	1.20	1.32	0.37	0.27	0.08	0.00	612.02	212759.62	7.404	5.791	1.74	0.05	1.57	1.99	0.23
70.01 - 80.00	2187	0.00	0.00	1.14	7.55	15.36	18.46	6.83	2.04	0.08	652.98	205996.86	7.024	5.727	20.42	0.32	26.98	32.88	39.32
80.01 - 90.00	1202	0.00	0.00	1.29	6.01	10.13	11.61	4.97	1.05	0.12	648.22	256152.43	7.273	5.732	13.89	0.06	18.10	23.90	16.45
90.01 - 100.00	747	0.00	0.00	0.00	1.37	1.22	2.12	2.16	0.58	0.01	671.99	87423.26	9.011	5.697	2.81	0.02	4.19	1.33	0.03
Total:	4402	0.00	0.00	3.15	17.24	28.54	32.80	14.29	3.77	0.21	650.08	198848.69	7.278	5.729	40.23	0.45	51.52	61.22	56.06

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3. Principal Balance

Principal Balance	FICO <= 450	FICO 451 - 500	FICO 501 - 550	FICO 551 - 600	FICO 601 - 650	FICO 651 - 700	FICO 701 - 750	FICO 751 - 800	FICO 801 - 850	WA FICO	Wtd Avg LTV	WAC	Gross Margin	% Full Documentation	% Limited Documentation	% Stated Documentation	IO Loans	Silent Second
0.01 - 50,000.00	0.00	0.00	0.02	0.03	0.05	0.51	0.51	0.15	0.00	703.18	96.11	9.846	5.946	0.31	0.00	0.93	0.00	0.03
50,000.01 - 100,000.00	0.00	0.00	0.43	1.87	2.13	1.54	1.14	0.32	0.01	640.26	84.79	8.481	6.005	4.39	0.02	2.71	0.55	3.16
100,000.01 - 150,000.00	0.00	0.00	0.73	2.91	4.32	2.83	1.25	0.34	0.01	634.20	82.51	7.603	5.676	7.94	0.02	3.85	3.83	7.11
150,000.01 - 200,000.00	0.00	0.00	0.55	3.36	4.14	3.58	1.17	0.35	0.00	634.53	80.44	7.304	5.699	7.82	0.06	4.45	6.42	7.71
200,000.01 - 250,000.00	0.00	0.00	0.31	2.34	3.28	3.08	1.14	0.42	0.00	641.51	80.99	7.271	5.775	5.04	0.03	4.54	6.65	5.91
250,000.01 - 300,000.00	0.00	0.00	0.30	2.04	2.63	4.01	1.11	0.37	0.00	646.98	81.46	7.159	5.767	4.05	0.06	5.52	7.54	5.72
300,000.01 - 350,000.00	0.00	0.00	0.29	1.33	3.40	3.85	1.61	0.29	0.00	653.34	82.28	6.961	5.688	3.37	0.11	6.45	8.37	6.27
350,000.01 - 400,000.00	0.00	0.00	0.30	1.63	2.30	3.71	1.64	0.25	0.04	653.60	82.23	6.955	5.668	2.99	0.04	6.17	7.52	5.30
400,000.01 - 450,000.00	0.00	0.00	0.05	0.93	1.98	2.09	1.55	0.29	0.00	661.30	83.03	7.069	5.708	1.64	0.05	4.66	5.69	3.78
450,000.01 - 500,000.00	0.00	0.00	0.11	0.55	1.20	2.95	0.82	0.22	0.00	664.87	82.71	6.883	5.703	0.83	0.05	4.52	4.78	3.58
500,000.01 - 550,000.00	0.00	0.00	0.00	0.18	0.79	1.61	0.59	0.12	0.00	670.83	83.03	6.833	5.671	0.24	0.00	2.56	2.86	2.20
550,000.01 - 600,000.00	0.00	0.00	0.06	0.06	0.80	1.30	0.46	0.14	0.06	673.03	83.22	6.890	5.764	0.33	0.00	2.16	2.29	1.89
600,000.01 - 650,000.00	0.00	0.00	0.00	0.00	0.65	0.79	0.65	0.07	0.00	674.84	84.83	6.801	5.663	0.50	0.00	1.37	2.09	1.51
650,000.01 - 700,000.00	0.00	0.00	0.00	0.00	0.39	0.31	0.15	0.00	0.00	664.07	81.92	6.836	5.799	0.00	0.00	0.54	0.77	0.70
700,000.01 - 750,000.00	0.00	0.00	0.00	0.00	0.08	0.25	0.33	0.33	0.08	720.20	84.41	6.975	5.777	0.17	0.00	0.91	0.91	0.58
750,000.01 - 800,000.00	0.00	0.00	0.00	0.00	0.09	0.00	0.18	0.00	0.00	681.93	87.67	6.846	5.766	0.00	0.00	0.18	0.27	0.18
800,000.01 - 850,000.00	0.00	0.00	0.00	0.00	0.10	0.19	0.00	0.10	0.00	674.92	84.86	6.762	5.986	0.19	0.00	0.00	0.38	0.09
850,000.01 - 900,000.00	0.00	0.00	0.00	0.00	0.10	0.10	0.00	0.00	0.00	655.71	82.48	6.872	5.650	0.20	0.00	0.00	0.20	0.10
950,000.01 - 1,000,000.00	0.00	0.00	0.00	0.00	0.00	0.11	0.00	0.00	0.00	669.00	80.00	6.850	6.250	0.11	0.00	0.00	0.11	0.11
1,000,000.01 >=	0.00	0.00	0.00	0.00	0.14	0.00	0.00	0.00	0.00	648.00	62.34	6.500	6.000	0.14	0.00	0.00	0.00	0.14
Total:	0.00	0.00	3.15	17.24	28.54	32.80	14.29	3.77	0.21	650.08	82.40	7.278	5.729	40.23	0.45	51.52	61.22	56.06

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4. APR & FICO

APR & FICO	FICO <= 450	FICO 451 - 500	FICO 501 - 550	FICO 551 - 600	FICO 601 - 650	FICO 651 - 700	FICO 701 - 750	FICO 751 - 800	FICO 801 - 850	WA FICO	LTV	WAC	Gross Margin	Avg Principal	% Full Documentation	% Limited Documentation	% Stated Documentation	IO Loans	Silent Second
6.001 - 6.500	0.00	0.00	0.02	1.26	5.72	7.88	3.89	0.82	0.08	668.70	80.41	6.387	5.708	289493.99	8.82	0.04	9.83	16.35	15.32
6.501 - 7.000	0.00	0.00	0.18	4.26	9.90	11.71	5.65	1.42	0.10	660.35	81.05	6.812	5.728	250702.57	12.50	0.21	17.31	24.39	23.17
7.001 - 7.500	0.00	0.00	0.42	3.07	5.84	6.52	2.15	0.57	0.00	648.30	81.95	7.302	5.686	214195.40	7.47	0.08	9.53	10.71	10.48
7.501 - 8.000	0.00	0.00	0.67	4.46	4.26	3.95	0.68	0.40	0.01	626.56	83.08	7.779	5.711	193211.22	5.60	0.04	7.64	6.88	5.13
8.001 - 8.500	0.00	0.00	0.63	1.82	1.50	0.75	0.05	0.06	0.00	603.20	84.89	8.300	5.819	165196.93	2.36	0.05	1.93	1.54	1.08
8.501 - 9.000	0.00	0.00	0.41	1.41	1.01	0.41	0.12	0.02	0.00	601.77	85.64	8.785	5.910	120795.61	1.81	0.00	1.36	1.06	0.55
9.001 - 9.500	0.00	0.00	0.29	0.59	0.21	0.29	0.33	0.08	0.00	624.23	87.65	9.367	5.995	84133.61	0.89	0.01	0.75	0.26	0.17
9.501 - 10.000	0.00	0.00	0.28	0.31	0.09	0.64	0.79	0.26	0.00	671.41	94.53	9.890	5.998	72555.60	0.54	0.01	1.74	0.05	0.10
10.001 - 10.500	0.00	0.00	0.20	0.04	0.01	0.47	0.38	0.10	0.00	675.22	94.35	10.291	6.011	58622.44	0.20	0.01	0.98	0.00	0.05
10.501 - 11.000	0.00	0.00	0.06	0.01	0.00	0.18	0.23	0.04	0.01	687.67	95.81	10.662	5.914	56708.35	0.05	0.00	0.46	0.00	0.02
Total:	0.00	0.00	3.15	17.24	28.54	32.80	14.29	3.77	0.21	650.08	82.40	7.278	5.729	198848.69	40.23	0.45	51.52	61.22	56.06

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5. APR & LTV

APR & LTV	LTV <=40	LTV 40.01 - 50	LTV 50.01 - 60	LTV 60.01 - 70	LTV 70.01 - 80	LTV 80.01 - 90	LTV 90.01 - 100	LTV 100+	WA LTV	WA FICO	Gross Margin	Avg Prin Bal	% Full Documentation	% Limited Documentation	% Stated Documentation	IO Loans	Silent 2nds
6.001 - 6.500	0.03	0.12	0.22	0.85	12.75	5.68	0.03	0.00	80.41	669	5.708	289,493.99	8.82	0.04	9.83	16.35	15.32
6.501 - 7.000	0.04	0.16	0.56	1.16	19.87	10.98	0.45	0.00	81.05	660	5.728	250,702.57	12.50	0.21	17.31	24.39	23.17
7.001 - 7.500	0.06	0.14	0.27	0.60	9.51	7.33	0.67	0.00	81.95	648	5.686	214,195.40	7.47	0.08	9.53	10.71	10.48
7.501 - 8.000	0.05	0.05	0.14	0.52	6.32	6.39	0.97	0.00	83.08	627	5.711	193,211.22	5.60	0.04	7.64	6.88	5.13
8.001 - 8.500	0.00	0.03	0.02	0.12	1.60	2.44	0.60	0.00	84.89	603	5.819	165,196.93	2.36	0.05	1.93	1.54	1.08
8.501 - 9.000	0.01	0.05	0.06	0.16	0.76	1.49	0.84	0.00	85.64	602	5.910	120,795.61	1.81	0.00	1.36	1.06	0.55
9.001 - 9.500	0.01	0.01	0.04	0.16	0.36	0.49	0.73	0.00	87.65	624	5.995	84,133.61	0.89	0.01	0.75	0.26	0.17
9.501 - 10.000	0.00	0.00	0.01	0.12	0.20	0.29	1.75	0.00	94.53	671	5.998	72,555.60	0.54	0.01	1.74	0.05	0.10
10.001 - 10.500	0.01	0.00	0.00	0.09	0.09	0.05	0.97	0.00	94.35	675	6.011	58,622.44	0.20	0.01	0.98	0.00	0.05
10.501 - 11.000	0.00	0.01	0.00	0.03	0.02	0.02	0.46	0.00	95.81	688	5.914	56,708.35	0.05	0.00	0.46	0.00	0.02
Total:	0.21	0.58	1.31	3.79	51.47	35.17	7.46	0.00	82.40	650	5.729	198,848.69	40.23	0.45	51.52	61.22	56.06

Please note LTV refers to loan to value for first lien and cumulative loan to value for second lien

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Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 21, 2005 16:11

Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
2,438 records
Balance: 563,268,715

Selection Criteria: Group 2
Table of Contents

FICO & Documentation
Original LTV
Principal Balance
APR & FICO
APR & LTV

1. FICO & Documentation

FICO & Documentation	Count	% Full Documentation	% Limited Documentation	% Stated Documentation	% Purchase	% CO Refi	WAC	Avg Prin Bal	Wtd Avg LTV	IO Loans	Silent Seconds
501 - 550	113	2.58	0.00	0.31	0.95	0.46	8.334	170,837.02	78.10	0.13	0.09
551 - 600	469	11.02	0.16	2.01	7.25	2.31	7.553	183,578.38	81.59	3.65	4.90
601 - 650	610	12.69	0.17	8.29	15.23	3.05	7.116	236,856.45	82.28	15.17	13.59
651 - 700	764	4.41	0.14	29.62	28.92	1.39	7.080	261,708.57	83.29	27.29	27.93
701 - 750	386	0.86	0.11	14.69	13.89	0.41	7.174	232,324.81	85.25	11.77	11.93
751 - 800	92	0.30	0.03	3.40	3.66	0.13	7.312	242,186.11	84.67	2.95	2.78
801 - 850	4	0.02	0.00	0.24	0.26	0.00	6.735	369,897.98	85.39	0.23	0.23
Total:	2438	31.88	0.61	58.57	70.17	7.75	7.228	231,037.21	82.97	61.19	61.45

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2. Original LTV

Original LTV	Number of Loans	FICO <= 450	FICO 451 - 500	FICO 501 - 550	FICO 551 - 600	FICO 601 - 650	FICO 651 - 700	FICO 701 - 750	FICO 751 - 800	FICO 801 - 850	WA FICO	Avg Prin Bal	WAC	Gross Margin	% Full Documentation	% Limited Documentation	% Stated Documentation	IO Loans	Silent Second
10.01 - 20.00	3	0.00	0.00	0.00	0.02	0.01	0.00	0.00	0.00	0.00	608.44	58304.22	8.607	3.800	0.02	0.00	0.01	0.00	0.00
20.01 - 30.00	1	0.00	0.00	0.01	0.00	0.00	0.00	0.00	0.00	0.00	525.00	59947.82	10.100	6.250	0.00	0.00	0.01	0.00	0.00
30.01 - 40.00	5	0.00	0.00	0.00	0.06	0.01	0.01	0.00	0.01	0.00	634.01	111122.35	7.613	5.705	0.08	0.00	0.01	0.00	0.00
40.01 - 50.00	12	0.00	0.00	0.05	0.22	0.01	0.05	0.00	0.00	0.00	583.74	158184.47	7.260	5.706	0.27	0.00	0.07	0.07	0.00
50.01 - 60.00	24	0.00	0.00	0.12	0.29	0.25	0.00	0.00	0.00	0.00	585.90	157009.72	7.127	5.599	0.54	0.00	0.07	0.17	0.03
60.01 - 70.00	71	0.00	0.00	0.59	0.87	1.19	0.20	0.08	0.06	0.00	603.80	237772.76	7.357	5.752	1.28	0.08	1.22	1.31	0.24
70.01 - 80.00	1210	0.00	0.00	1.18	7.46	13.45	19.55	7.17	2.00	0.13	655.65	237125.00	6.972	5.718	16.17	0.42	30.03	32.55	41.03
80.01 - 90.00	687	0.00	0.00	1.47	5.18	9.71	13.37	6.17	1.24	0.12	654.09	305585.76	7.180	5.712	11.44	0.08	22.16	25.93	20.13
90.01 - 100.00	425	0.00	0.00	0.00	1.18	1.01	2.32	2.50	0.64	0.01	678.40	101344.17	9.104	5.687	2.08	0.03	4.97	1.15	0.02
Total:	2438	0.00	0.00	3.43	15.29	25.65	35.50	15.92	3.96	0.26	654.50	231037.21	7.228	5.715	31.88	0.61	58.57	61.19	61.45

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3. Principal Balance

Principal Balance	FICO <= 450	FICO 451 - 500	FICO 501 - 550	FICO 551 - 600	FICO 601 - 650	FICO 651 - 700	FICO 701 - 750	FICO 751 - 800	FICO 801 - 850	WA FICO	Wtd Avg LTV	WAC	Gross Margin	% Full Documentation	% Limited Documentation	% Stated Documentation	IO Loans	Silent Second
0.01 - 50,000.00	0.00	0.00	0.02	0.04	0.04	0.27	0.29	0.03	0.00	689.65	92.39	9.758	5.828	0.14	0.01	0.52	0.00	0.01
50,000.01 - 100,000.00	0.00	0.00	0.38	1.55	1.56	1.56	1.24	0.37	0.01	648.15	87.10	8.740	5.990	3.44	0.03	3.01	0.06	2.27
100,000.01 - 150,000.00	0.00	0.00	0.75	2.65	2.98	2.02	0.92	0.19	0.02	628.99	83.57	7.834	5.648	5.80	0.03	3.14	1.13	5.17
150,000.01 - 200,000.00	0.00	0.00	0.55	2.60	2.78	2.10	0.67	0.06	0.00	625.70	81.35	7.374	5.690	5.40	0.07	2.78	2.48	5.57
200,000.01 - 250,000.00	0.00	0.00	0.28	1.59	1.66	2.47	0.74	0.35	0.00	644.98	81.77	7.279	5.763	2.65	0.04	3.64	3.69	4.97
250,000.01 - 300,000.00	0.00	0.00	0.36	1.21	1.58	3.52	0.92	0.34	0.00	654.60	82.49	7.121	5.756	1.84	0.05	5.15	5.29	5.63
300,000.01 - 350,000.00	0.00	0.00	0.34	0.68	2.49	3.91	1.93	0.34	0.00	663.03	82.41	6.935	5.703	2.23	0.17	6.51	7.39	7.69
350,000.01 - 400,000.00	0.00	0.00	0.40	2.28	3.14	5.25	2.27	0.33	0.00	652.91	81.91	6.932	5.658	3.94	0.06	8.67	10.58	7.45
400,000.01 - 450,000.00	0.00	0.00	0.08	1.44	2.71	2.96	2.19	0.45	0.00	661.20	83.09	7.039	5.695	2.25	0.08	6.73	8.17	5.65
450,000.01 - 500,000.00	0.00	0.00	0.17	0.86	1.86	4.40	1.27	0.34	0.00	664.63	82.62	6.883	5.698	1.29	0.08	6.85	7.35	5.48
500,000.01 - 550,000.00	0.00	0.00	0.00	0.28	1.22	2.50	0.83	0.18	0.00	670.06	82.90	6.825	5.664	0.37	0.00	3.88	4.34	3.42
550,000.01 - 600,000.00	0.00	0.00	0.10	0.10	1.24	1.81	0.61	0.21	0.10	671.03	83.73	6.878	5.751	0.51	0.00	3.04	3.35	2.83
600,000.01 - 650,000.00	0.00	0.00	0.00	0.00	1.00	1.23	1.01	0.11	0.00	674.84	84.83	6.801	5.663	0.77	0.00	2.12	3.24	2.34
650,000.01 - 700,000.00	0.00	0.00	0.00	0.00	0.60	0.48	0.24	0.00	0.00	664.07	81.92	6.836	5.799	0.00	0.00	0.84	1.20	1.09
700,000.01 - 750,000.00	0.00	0.00	0.00	0.00	0.13	0.39	0.51	0.51	0.13	720.20	84.41	6.975	5.777	0.26	0.00	1.41	1.42	0.90
750,000.01 - 800,000.00	0.00	0.00	0.00	0.00	0.14	0.00	0.28	0.00	0.00	681.93	87.67	6.846	5.766	0.00	0.00	0.28	0.42	0.28
800,000.01 - 850,000.00	0.00	0.00	0.00	0.00	0.15	0.29	0.00	0.15	0.00	674.92	84.86	6.762	5.986	0.30	0.00	0.00	0.59	0.15
850,000.01 - 900,000.00	0.00	0.00	0.00	0.00	0.16	0.15	0.00	0.00	0.00	655.71	82.48	6.872	5.650	0.31	0.00	0.00	0.31	0.15
950,000.01 - 1,000,000.00	0.00	0.00	0.00	0.00	0.00	0.18	0.00	0.00	0.00	669.00	80.00	6.850	6.250	0.18	0.00	0.00	0.18	0.18
1,000,000.01 >=	0.00	0.00	0.00	0.00	0.21	0.00	0.00	0.00	0.00	648.00	62.34	6.500	6.000	0.21	0.00	0.00	0.00	0.21
Total:	0.00	0.00	3.43	15.29	25.65	35.50	15.92	3.96	0.26	654.50	82.97	7.228	5.715	31.88	0.61	58.57	61.19	61.45

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4. APR & FICO

APR & FICO	FICO <= 450	FICO 451 - 500	FICO 501 - 550	FICO 551 - 600	FICO 601 - 650	FICO 651 - 700	FICO 701 - 750	FICO 751 - 800	FICO 801 - 850	WA FICO	LTV	WAC	Gross Margin	Avg Principal	% Full Documentation	% Limited Documentation	% Stated Documentation	IO Loans	Silent Second
6.001 - 6.500	0.00	0.00	0.00	1.26	5.40	9.29	5.03	0.89	0.13	673.79	80.99	6.390	5.681	340551.60	7.18	0.06	13.32	18.26	18.34
6.501 - 7.000	0.00	0.00	0.28	4.11	9.10	13.40	6.25	1.41	0.10	663.22	81.64	6.808	5.713	295827.36	9.71	0.28	20.75	26.02	25.78
7.001 - 7.500	0.00	0.00	0.55	2.37	5.44	6.75	2.10	0.63	0.00	652.42	82.96	7.301	5.699	247507.73	5.77	0.09	10.40	10.28	11.44
7.501 - 8.000	0.00	0.00	0.67	4.09	3.55	3.34	0.46	0.52	0.02	625.25	83.40	7.767	5.726	213212.28	4.42	0.06	6.91	4.94	4.44
8.001 - 8.500	0.00	0.00	0.72	1.58	1.12	0.56	0.03	0.00	0.00	594.09	85.02	8.306	5.736	186387.89	1.96	0.08	1.62	0.85	0.88
8.501 - 9.000	0.00	0.00	0.45	1.06	0.78	0.32	0.06	0.02	0.00	596.34	86.20	8.786	5.862	130049.20	1.53	0.00	0.97	0.67	0.38
9.001 - 9.500	0.00	0.00	0.35	0.50	0.22	0.29	0.38	0.07	0.00	625.03	89.07	9.380	5.965	91468.41	0.79	0.02	0.91	0.09	0.15
9.501 - 10.000	0.00	0.00	0.24	0.26	0.03	0.80	0.98	0.31	0.00	682.85	95.67	9.912	6.027	80964.40	0.39	0.00	2.11	0.07	0.03
10.001 - 10.500	0.00	0.00	0.12	0.05	0.02	0.58	0.38	0.08	0.00	683.17	95.72	10.279	6.039	67500.29	0.09	0.01	1.12	0.00	0.01
10.501 - 11.000	0.00	0.00	0.04	0.00	0.00	0.16	0.24	0.04	0.01	697.05	97.11	10.654	6.003	69742.02	0.04	0.00	0.45	0.00	0.00
Total:	0.00	0.00	3.43	15.29	25.65	35.50	15.92	3.96	0.26	654.50	82.97	7.228	5.715	231037.21	31.88	0.61	58.57	61.19	61.45

Top

5. APR & LTV

APR & LTV	LTV <=40	LTV 40.01 - 50	LTV 50.01 - 60	LTV 60.01 - 70	LTV 70.01 - 80	LTV 80.01 - 90	LTV 90.01 - 100	LTV 100+	WA LTV	WA FICO	Gross Margin	Avg Prin Bal	% Full Documentation	% Limited Documentation	% Stated Documentation	IO Loans	Silent 2nds
6.001 - 6.500	0.00	0.04	0.08	0.87	14.01	7.00	0.00	0.00	80.99	674	5.681	340,551.60	7.18	0.06	13.32	18.26	18.34
6.501 - 7.000	0.00	0.15	0.35	1.00	20.10	12.52	0.54	0.00	81.64	663	5.713	295,827.36	9.71	0.28	20.75	26.02	25.78
7.001 - 7.500	0.04	0.04	0.12	0.28	8.90	7.81	0.64	0.00	82.96	652	5.699	247,507.73	5.77	0.09	10.40	10.28	11.44
7.501 - 8.000	0.05	0.06	0.07	0.29	5.52	5.87	0.79	0.00	83.40	625	5.726	213,212.28	4.42	0.06	6.91	4.94	4.44
8.001 - 8.500	0.00	0.03	0.00	0.06	1.27	2.17	0.48	0.00	85.02	594	5.736	186,387.89	1.96	0.08	1.62	0.85	0.88
8.501 - 9.000	0.02	0.01	0.04	0.14	0.52	1.19	0.75	0.00	86.20	596	5.862	130,049.20	1.53	0.00	0.97	0.67	0.38
9.001 - 9.500	0.01	0.01	0.00	0.16	0.29	0.55	0.79	0.00	89.07	625	5.965	91,468.41	0.79	0.02	0.91	0.09	0.15
9.501 - 10.000	0.00	0.00	0.01	0.11	0.22	0.14	2.14	0.00	95.67	683	6.027	80,964.40	0.39	0.00	2.11	0.07	0.03
10.001 - 10.500	0.01	0.00	0.00	0.06	0.08	0.02	1.06	0.00	95.72	683	6.039	67,500.29	0.09	0.01	1.12	0.00	0.01
10.501 - 11.000	0.00	0.00	0.00	0.03	0.01	0.00	0.45	0.00	97.11	697	6.003	69,742.02	0.04	0.00	0.45	0.00	0.00
Total:	0.14	0.34	0.67	3.00	50.94	37.27	7.65	0.00	82.97	654	5.715	231,037.21	31.88	0.61	58.57	61.19	61.45

Please note LTV refers to loan to value for first lien and cumulative loan to value for second lien

Top

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 24, 2005 13:42

Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
4,402 records
Balance: 875,331,945

Selection Criteria: All records
Table of Contents

Summary Aggregate
IO Loans From the Entire Pool

1. Summary Aggregate

WAC: 7.278
Wtd Avg FICO: 650
FICO lt 600: 19.73
FICO 600 650: 29.20
WA LTV: 82.40
LTV eq 80: 43.13
LTV gt 80.01: 42.64
LTV 95.01 100: 3.71
Full Doc: 40.23
Stated Doc: 51.52
Limited Doc: 0.45
Purch %: 60.19
CO refi %: 9.78
Owner OCC: 97.42
Prepay Penalty: 81.92
Wtd Avg DTI: 41.91
ARM %: 89.21
2 YR Fixed ARM: 76.99
3 YR Fixed ARM: 10.86
1st Lien %: 96.12
Avg Loan Balance: 198848.69
# of Loans: 4402
Loan Bal < 100K: 8.64
Mtg Rates > 12%: 0.00
Manuf Housing (%): 0.05
Silent 2nd %: 56.06
IO Loan %: 61.22

Top

2. IO Loans From the Entire Pool

5 YR IO: 100.00
2 YR IO: 0.00
FICO: 662
LTV: 81.83
DTI: 42.70
Full Doc: 32.11
Purchase: 62.80

Top

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 21, 2005 16:12

Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
2,438 records
Balance: 563,268,715

Selection Criteria: Group 2
Table of Contents

Summary Aggregate
IO Loans From the Entire Pool

1. Summary Aggregate

WAC: 7.228
Wtd Avg FICO: 654
FICO lt 600: 18.21
FICO 600 650: 26.16
WA LTV: 82.97
LTV eq 80: 44.35
LTV gt 80.01: 44.92
LTV 95.01 100: 4.20
Full Doc: 31.88
Stated Doc: 58.57
Limited Doc: 0.61
Purch %: 70.17
CO refi %: 7.75
Owner OCC: 98.86
Prepay Penalty: 84.97
Wtd Avg DTI: 41.87
ARM %: 89.51
2 YR Fixed ARM: 78.49
3 YR Fixed ARM: 9.78
1st Lien %: 95.60
Avg Loan Balance: 231037.21
# of Loans: 2438
Loan Bal < 100K: 7.33
Mtg Rates > 12%: 0.00
Manuf Housing (%): 0.07
Silent 2nd %: 61.45
IO Loan %: 61.19

Top

2. IO Loans From the Entire Pool

5 YR IO: 100.00
2 YR IO: 0.00
FICO: 671
LTV: 82.54
DTI: 42.80
Full Doc: 20.04
Purchase: 75.76

Top

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 24, 2005 13:42

                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  4,402 RECORDS
                              BALANCE: 875,331,945

--------------------------------------------------------------------------------

SELECTION CRITERIA: ALL RECORDS
TABLE OF CONTENTS

1. Summary- Aggregate
2. Summary- Group1
3. Summary- Aggregate- Group2
4. Documentation
5. Loan Type
6. FICO
7. Outstanding Principal Balance
8. Lien Position
9. LTV
10. CLTV
11. Coupon-ARM
12. Coupon-Fixed Rate

--------------------------------------------------------------------------------

1. SUMMARY- AGGREGATE

WA FICO: 650
FICO stdev: 58.59
FICO < 500 %: 0.00
FICO < 560 %: 5.64
FICO not available %: 0.00
10th Percentile FICO: 570
90th Percentile FICO: 724
Wtd Avg LTV(2): 82.40
LTV(2) >80%: 42.64
SS CLTV: 99.31
% With Silent 2nds: 56.06
10th Percentile LTV(2): 75.00
90th Percentile LTV(2): 100.00
Full Doc %: 40.23
Loan Bal avg: 198,848.69
Wtd Avg DTI: 41.91
DTI > 45%: 44.98
Purch %: 60.19
Cash Out %: 9.78
Fixed %: 10.79
3 yr ARM >= %: 12.22
WAC: 7.278
WAC stdev: 1.20
1st Lien %: 96.12
CA%: 40.32
Single Family %: 68.30
Invt Prop: 2.58
MH%: 0.05
IO%: 61.22
2 Yr IO%: 0.00
IO non-Full Doc %: 41.56
2-4 Fam %: 7.25
Prim Occ %: 97.42

<$100K Bal % 8.64>2-yr Prepay
Loan Count: 4,402



--------------------------------------------------------------------------------

2. SUMMARY- GROUP1

WA FICO: 642
FICO stdev: 57.67
FICO < 500 %: 0.00
FICO < 560 %: 5.79
FICO not available %: 0.00
10th Percentile FICO: 572
90th Percentile FICO: 725
Wtd Avg LTV(2): 81.38
LTV(2) >80%: 38.52
SS CLTV: 99.28
% With Silent 2nds: 46.33
10th Percentile LTV(2): 73.86
90th Percentile LTV(2): 100.00
Full Doc %: 55.32
Loan Bal avg: 158,891.66
Wtd Avg DTI: 41.99
DTI > 45%: 43.46
Purch %: 42.17
Cash Out %: 13.45
Fixed %: 11.34
3 yr ARM >= %: 14.36
WAC: 7.370
WAC stdev: 1.17
1st Lien %: 97.06
CA%: 23.29
Single Family %: 67.42
Invt Prop: 5.18
MH%: 0.00
IO%: 61.29
2 Yr IO%: 0.00
IO non-Full Doc %: 28.28
2-4 Fam %: 8.60
Prim Occ %: 94.82

<$100K Bal % 7.38>2-yr Prepay
Loan Count: 1,964



--------------------------------------------------------------------------------

3. SUMMARY- AGGREGATE- GROUP2

WA FICO: 654
FICO stdev: 59.31
FICO < 500 %: 0.00
FICO < 560 %: 5.56
FICO not available %: 0.00
10th Percentile FICO: 567
90th Percentile FICO: 724
Wtd Avg LTV(2): 82.97
LTV(2) >80%: 44.92
SS CLTV: 99.32
% With Silent 2nds: 61.45
10th Percentile LTV(2): 77.53
90th Percentile LTV(2): 100.00
Full Doc %: 31.88
Loan Bal avg: 231,037.21
Wtd Avg DTI: 41.87
DTI > 45%: 45.83
Purch %: 70.17
Cash Out %: 7.75
Fixed %: 10.49
3 yr ARM >= %: 11.02
WAC: 7.228
WAC stdev: 1.23
1st Lien %: 95.60
CA%: 49.76
Single Family %: 68.78
Invt Prop: 1.14
MH%: 0.07
IO%: 61.19
2 Yr IO%: 0.00
IO non-Full Doc %: 48.92
2-4 Fam %: 6.51
Prim Occ %: 98.86

2-yr Prepay Penalty %: 71.13
Loan Count: 2,438



--------------------------------------------------------------------------------

4. DOCUMENTATION



DOCUMENTATION                     WA LTV    WA CLTV    WA FICO         WAC         BAL.         % BAL.     PURCH %    INVT PROP%
Full Documentation                 81.82      90.46        616        7.232   352,187,174.19     40.23       46.71          1.87
Non Full Documentation             82.79      93.63        673        7.309   523,144,771.14     59.77       69.26          3.05
TOTAL:                              82.4      92.35        650        7.278   875,331,945.33       100       60.19          2.58


                                             % WITH                                      WTD AVG
DOCUMENTATION                 1ST LIEN %     S.2NDS       CA%    FULL DOC %       IO %     DTI     DTI %> 45
Full Documentation                 99.22      47.58      22.15          100      48.86     42.18       46.41
Non Full Documentation             94.04      61.77      52.56            0      69.55     41.73       44.02
TOTAL:                             96.12      56.06      40.32        40.23      61.22     41.91       44.98




--------------------------------------------------------------------------------

5. LOAN TYPE



--------------------------------------------------------------------------------

6. FICO



FICO                              WA LTV    WA CLTV    WA FICO         WAC         BAL.         % BAL.     PURCH %    INVT PROP%
0 - 559                            79.16      80.24        545        8.274    49,393,460.56      5.64       30.13          1.36
560 - 599                          80.62      86.27        582        7.545   123,315,346.34     14.09       41.02          1.14
600 - 639                          82.09      90.81        619        7.181   192,225,530.43     21.96       46.29          2.45
640 - 679                          81.93      94.55        660        7.019   242,797,487.97     27.74       65.22          2.99
680 >=                             84.47      96.51        714        7.277   267,600,120.04     30.57       79.98          3.18
TOTAL:                              82.4      92.35        650        7.278   875,331,945.33       100       60.19          2.58


                                             % WITH                                      WTD AVG
FICO                          1ST LIEN %     S.2NDS       CA%    FULL DOC %       IO %     DTI     DTI %> 45
0 - 559                              100       8.89      14.33        74.66      22.94     41.04       43.49
560 - 599                            100      30.83      24.14        73.19      32.59     41.29       43.52
600 - 639                            100      47.34      29.87        66.57      60.98     40.46       39.55
640 - 679                            100      71.61      45.69        28.07      74.15     42.56       48.61
680 >=                             87.32      68.54      55.22        10.81      69.94      42.8       46.55
TOTAL:                             96.12      56.06      40.32        40.23      61.22     41.91       44.98




--------------------------------------------------------------------------------

7. OUTSTANDING PRINCIPAL BALANCE



OUTSTANDING PRINCIPAL BALANCE     WA LTV    WA CLTV    WA FICO         WAC         BAL.         % BAL.     PURCH %    INVT PROP%
<= 79,999.99                       88.43      94.41        662        9.048    43,789,312.87         5       76.91          2.93
80,000.00 - 99,999.99              84.15      93.37        633        8.199    31,873,908.29      3.64       68.02          4.29
100,000.00 >=                         82       92.2        650        7.145   799,668,724.17     91.36       58.96          2.49
TOTAL:                              82.4      92.35        650        7.278   875,331,945.33       100       60.19          2.58


                                             % WITH                                      WTD AVG
OUTSTANDING PRINCIPAL BALANCE 1ST LIEN %     S.2NDS       CA%    FULL DOC %       IO %     DTI     DTI %> 45
<= 79,999.99                       52.82         28      18.17        46.05       3.13     40.02       33.94
80,000.00 - 99,999.99              81.38      48.67      14.29        64.73       9.57     39.92        37.7
100,000.00 >=                      99.08      57.89      42.57        38.94      66.46     42.09       45.88
TOTAL:                             96.12      56.06      40.32        40.23      61.22     41.91       44.98




--------------------------------------------------------------------------------

8. LIEN POSITION



LIEN POSITION                     WA LTV    WA CLTV    WA FICO         WAC         BAL.         % BAL.     PURCH %    INVT PROP%
1                                   81.7      92.06        647        7.169   841,387,685.73     96.12       58.92          2.68
2                                  99.64      99.64        715        9.996    33,944,259.60      3.88       91.46             0
TOTAL:                              82.4      92.35        650        7.278   875,331,945.33       100       60.19          2.58


                                             % WITH                                      WTD AVG
LIEN POSITION                 1ST LIEN %     S.2NDS       CA%    FULL DOC %       IO %     DTI     DTI %> 45
1                                    100      58.32      39.86        41.53      63.69     41.86       44.87
2                                      0          0      51.77         8.12          0     43.23       47.89
TOTAL:                             96.12      56.06      40.32        40.23      61.22     41.91       44.98




--------------------------------------------------------------------------------

9. LTV



LTV                               WA LTV    WA CLTV    WA FICO         WAC         BAL.         % BAL.     PURCH %    INVT PROP%
<= 80.00                           77.58      91.06        648        7.056   502,131,555.24     57.36       64.01          4.12
80.01 - 85.00                      84.75      94.77        659        7.071   163,173,535.96     18.64       61.91          0.89
85.01 - 90.00                      89.72      91.84        636        7.501   144,721,680.73     16.53       43.04           0.3
90.01 - 95.00                      94.75      94.79        630         8.04    32,795,447.03      3.75       37.46             0
95.01 - 100.00                     99.98      99.98        715        9.991    32,509,726.36      3.71       91.81             0
TOTAL:                              82.4      92.35        650        7.278   875,331,945.33       100       60.19          2.58


                                             % WITH                                      WTD AVG
LTV                           1ST LIEN %     S.2NDS       CA%    FULL DOC %       IO %     DTI     DTI %> 45
<= 80.00                           99.98         69      37.49        41.02      62.75     41.87       44.42
80.01 - 85.00                        100      68.88      54.95        29.45       75.4     42.69       49.61
85.01 - 90.00                      99.91       21.8      35.38        50.81      59.54     40.88       41.66
90.01 - 95.00                      96.32       0.79      21.15        66.92      35.41     41.77       42.07
95.01 - 100.00                         0          0      52.07         8.27          0     43.34        48.2
TOTAL:                             96.12      56.06      40.32        40.23      61.22     41.91       44.98




--------------------------------------------------------------------------------

10. CLTV



CLTV                              WA LTV    WA CLTV    WA FICO         WAC         BAL.         % BAL.     PURCH %    INVT PROP%
<= 80.00                           72.69      72.78        614        7.388   157,399,303.73     17.98       21.44         12.51
80.01 - 85.00                      84.47      84.56        618        7.446    51,641,392.37       5.9       20.34           4.5
85.01 - 90.00                      88.95      89.69        631        7.517   123,012,585.71     14.05       33.46          0.35
90.01 - 95.00                      88.99      94.67        646        7.609    59,341,886.31      6.78       49.56          0.18
95.01 - 100.00                     82.86      99.94        671        7.123   483,936,777.22     55.29       85.14             0
TOTAL:                              82.4      92.35        650        7.278   875,331,945.33       100       60.19          2.58


                                             % WITH                                      WTD AVG
CLTV                          1ST LIEN %     S.2NDS       CA%    FULL DOC %       IO %     DTI     DTI %> 45
<= 80.00                           99.94       1.12      42.35        46.94      54.36     40.42       38.99
80.01 - 85.00                        100       1.68      31.84        54.43      50.31     41.73       43.33
85.01 - 90.00                      99.89          8      30.73        50.65      54.97     40.27       40.02
90.01 - 95.00                      97.97      45.17      28.57        50.76      52.56     41.41       38.45
95.01 - 100.00                     93.28      93.28      44.45         32.6      67.27     42.89       49.17
TOTAL:                             96.12      56.06      40.32        40.23      61.22     41.91       44.98




--------------------------------------------------------------------------------

11. COUPON-ARM



COUPON-ARM                        WA LTV    WA CLTV    WA FICO         WAC         BAL.         % BAL.     PURCH %    INVT PROP%
<= 8.00                            81.63      93.03        655        6.976   702,273,418.78     89.93       62.13          2.17
8.01 - 9.00                        85.51      88.22        598        8.496    61,793,709.93      7.91       46.92          7.12
9.01 - 10.00                       81.58      83.54        564        9.484    14,089,010.93       1.8       37.48           7.5
10.01 - 11.00                      74.17      75.82        540        10.39     2,720,578.64      0.35       14.45             0
TOTAL:                             81.91      92.42        648        7.154   780,876,718.29       100       60.31          2.65


                                             % WITH                                      WTD AVG
COUPON-ARM                    1ST LIEN %     S.2NDS       CA%    FULL DOC %       IO %     DTI     DTI %> 45
<= 8.00                              100         64      45.16        37.96      71.41     42.22       46.29
8.01 - 9.00                          100      18.67       6.28        51.12      36.22     40.18       37.21
9.01 - 10.00                         100      15.79       2.13        64.26      19.43     40.27       41.23
10.01 - 11.00                        100      20.14          0        57.54          0     39.22        39.7
TOTAL:                               100      59.39      41.15        39.54      67.44     42.01       45.46




--------------------------------------------------------------------------------

12. COUPON-FIXED RATE



COUPON-FIXED RATE                 WA LTV    WA CLTV    WA FICO         WAC         BAL.         % BAL.     PURCH %    INVT PROP%
<= 8.00                            78.78      87.79        640        7.076    49,724,928.80     52.64       41.12          2.41
8.01 - 9.00                        83.27      88.62        631        8.527     9,926,432.14     10.51       47.55          2.84
9.01 - 10.00                       97.86      97.95        706        9.778    22,322,320.06     23.63       87.44          1.82
10.01 - 11.00                      99.29      99.29        709       10.408    12,481,546.04     13.21       89.62             0
TOTAL:                             86.47       91.8        664        8.308    94,455,227.05       100       59.15             2


                                             % WITH                                      WTD AVG
COUPON-FIXED RATE             1ST LIEN %     S.2NDS       CA%    FULL DOC %       IO %     DTI     DTI %> 45
<= 8.00                              100      48.51      27.84        69.31      18.12     40.34       38.86
8.01 - 9.00                        88.39       27.4        4.3        48.88       3.24     37.86       33.08
9.01 - 10.00                        8.33       0.53      56.37         15.5          0     43.45       50.69
10.01 - 11.00                       1.22          0      38.13         5.14          0     42.31       39.09
TOTAL:                             64.06      28.54      33.47        45.97       9.88     41.08       41.08




--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
                 10/25/2005 12:28

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
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sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
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Each person receiving these materials should make an independent assessment of
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interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.






                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  4,402 RECORDS
                              BALANCE: 875,331,945

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SELECTION CRITERIA: ALL RECORDS
TABLE OF CONTENTS

1. Geographic Distribution By Balance
2. FICO
3. Loan-to-Value
4. Owner Occupied
5. Documentation Type

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1. GEOGRAPHIC DISTRIBUTION BY BALANCE



GEOGRAPHIC DISTRIBUTION       NUMBER OF   AGGREGATE REMAINING     % OF PRINCIPAL
BY BALANCE                      LOANS      PRINCIPAL BALANCE         BALANCE       WA FICO   WA LTV   WA COUPON   % OWNER OCCUPIED
California                         1168     $  352,965,791.76              40.32%      668    82.29%       6.97%             97.99%
Illinois                            396           70626060.82               8.07       650    83.01       7.739              98.09
Florida                             356           64740916.39                7.4       641    82.12       7.404              95.99
Arizona                             312           59721550.45               6.82       636    81.85       7.326              96.89
Washington                          294           52919979.32               6.05       640    82.36       7.249               95.4
Texas                               337            35300200.3               4.03       635    80.59       7.444              98.22
Colorado                            176           26890143.41               3.07       650    82.15       7.207              95.73
Massachusetts                       100           24258316.77               2.77       637    82.24       7.599              97.78
Maryland                             89            21263307.2               2.43       643    81.84       7.549              95.29
Virginia                             82           19501763.33               2.23       652    83.13       7.351              98.39
Missouri                            158           17960702.98               2.05       612    84.24       8.002              97.86
Georgia                             122           16463382.76               1.88       629    83.05       7.349              97.63
Nevada                               69            12908651.2               1.47       635    81.18       7.135               96.1
Oregon                               64           10850796.53               1.24       637    82.11       7.063              95.76
Michigan                             75           10481578.88                1.2       631     84.9       7.782              97.26
Kansas                               95           10070361.44               1.15       625    83.02       7.959              96.58
Minnesota                            61            9876042.32               1.13       653     82.6       7.099                100
Iowa                                 82            7779731.23               0.89       614    84.55       8.358              98.49
New Jersey                           28            6443533.75               0.74       639    83.22       7.889              98.19
Utah                                 35            4648423.76               0.53       639    85.87       7.618                100
Idaho                                30             4164168.8               0.48       615    80.89       7.211              94.38
New Hampshire                        22             4158281.9               0.48       625    84.32       7.388                100
Tennessee                            38            3928687.32               0.45       613    86.17       8.189              92.94
Rhode Island                         19            3573456.83               0.41       659    81.07       6.958                100
Pennsylvania                         20            3066035.35               0.35       621    82.21       7.452                100
Indiana                              28            2528559.72               0.29       622     82.5       8.199                100
Nebraska                             25            2194950.31               0.25       631     81.7       7.785                100
Oklahoma                             17            2059211.04               0.24       604     80.8        7.59                100
Wisconsin                            17            2004893.48               0.23       609    83.69         7.8                100
New Mexico                            9            1825240.26               0.21       611    82.86       7.544                100
North Carolina                       11            1340139.04               0.15       623    81.96        7.37                100
Maine                                 9             1263456.5               0.14       612    81.28       7.982                100
Arkansas                             11            1126427.17               0.13       604    84.44       8.255                100
South Carolina                        7             987747.14               0.11       620    80.99       7.175                100
Kentucky                             10              960461.6               0.11       592     84.1       8.187                100
Delaware                              5             825252.97               0.09       570    86.49       7.941                100
West Virginia                         4             799113.44               0.09       617     88.7       8.064                100
Connecticut                           4             726457.84               0.08       608    84.66       7.704                100
Vermont                               3             550381.47               0.06       639    85.06       8.628              50.58
Mississippi                           4             483431.34               0.06       624    86.54       7.436                100
Ohio                                  3             459776.57               0.05       648     81.3       7.929              54.33
Wyoming                               2             234373.97               0.03       636    79.09       6.693                100
Louisiana                             3             222726.59               0.03       615    83.19       7.882                100
South Dakota                          1             111017.17               0.01       586       80           7                100
North Dakota                          1              66462.91               0.01       614       95         8.9                100
TOTAL:                             4402     $  875,331,945.33             100.00%      650    82.40%       7.28%             97.42%





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2. FICO



FICO                          NUMBER OF   AGGREGATE REMAINING     % OF PRINCIPAL
                                LOANS      PRINCIPAL BALANCE         BALANCE       WA FICO   WA LTV   WA COUPON   % OWNER OCCUPIED
501 - 525                            33     $    5,477,627.92               0.63%      518    72.72%       8.86%            100.00%
526 - 550                           139           22080956.18               2.52       541    79.09       8.354              98.26
551 - 575                           343           60970897.74               6.97       563    81.05       7.952              98.44
576 - 600                           518           89917573.45              10.27       589    80.57       7.358              98.86
601 - 625                           622           124443496.4              14.22       613    81.87       7.201               97.8
626 - 650                           599           125417296.3              14.33       638    81.91       7.103              97.49
651 - 675                           606           154070668.1               17.6       664    82.07        7.01               96.6
676 - 700                           693           133027066.3               15.2       687    83.89       7.262              96.82
701 - 725                           425           79469121.77               9.08       712    84.56       7.243              97.04
726 - 750                           236           45623495.49               5.21       736    84.74       7.198               96.1
751 - 775                           119           23147695.44               2.64       761    84.45       7.326              96.87
776 - 800                            64            9855458.47               1.13       785    84.52       7.357                100
801 - 825                             5             1830591.9               0.21       805    86.28       6.747                100
TOTAL:                             4402     $  875,331,945.33             100.00%      650    82.40%       7.28%             97.42%


Minimum FICO: 502
Maximum FICO: 815
wa FICO: 650




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3. LOAN-TO-VALUE



LOAN-TO-VALUE                 NUMBER OF   AGGREGATE REMAINING     % OF PRINCIPAL
                                LOANS      PRINCIPAL BALANCE         BALANCE       WA FICO   WA LTV   WA COUPON   % OWNER OCCUPIED
>= 50.00                             46     $    6,923,348.74               0.79%      602    42.27%       7.32%             94.56%
50.01 - 60.00                        64           11502566.36               1.31       601    56.32       7.165              93.67
60.01 - 70.00                       156            33190500.6               3.79       612    67.23       7.404              89.58
70.01 - 80.00                      2187           450515139.6              51.47       653    79.43       7.024              96.42
80.01 - 90.00                      1202           307895216.7              35.17       648    87.08       7.273              99.39
90.01 - 100.00                      747            65305173.4               7.46       672    97.35       9.011                100
TOTAL:                             4402     $  875,331,945.33             100.00%      650    82.40%       7.28%             97.42%


Minimum LTV: 14
Maximum LTV: 100
wa LTV: 82




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4. OWNER OCCUPIED



OWNER OCCUPIED                NUMBER OF   AGGREGATE REMAINING     % OF PRINCIPAL
                                LOANS      PRINCIPAL BALANCE         BALANCE       WA FICO   WA LTV   WA COUPON   % OWNER OCCUPIED
Investment Property                 122     $   22,559,586.82               2.58%      663    76.33%       7.73%              0.00%
Primary Home                       4280          852772358.52              97.42       650    82.56       7.267                100
TOTAL:                             4402     $  875,331,945.33             100.00%      650    82.40%       7.28%             97.42%
Minimum FICO: 502
Maximum FICO: 815
wa FICO: 650





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5. DOCUMENTATION TYPE



DOCUMENTATION TYPE            NUMBER OF   AGGREGATE REMAINING     % OF PRINCIPAL
                                LOANS      PRINCIPAL BALANCE         BALANCE       WA FICO   WA LTV   WA COUPON   % OWNER OCCUPIED
12 Month Bank Statements            203     $   49,885,870.43               5.70%      623    82.51%       7.26%             95.14%
24 Month Bank Statements             66           18378201.00                2.1       618    82.74       7.255              94.33
Full Documentation                 2089          352187174.19              40.23       616    81.82       7.232              98.13
Limited Documentation                17            3911493.95               0.45       653    80.47       7.254                100
Stated Income Self-Employed         668          168594954.14              19.26       674    82.41       7.247              96.09
Stated Income Wage Earner          1359          282374251.62              32.26       685    83.11       7.361               97.9
TOTAL:                             4402     $  875,331,945.33             100.00%      650    82.40%       7.28%             97.42%


Minimum FICO: 502
Maximum FICO: 815
wa FICO: 650




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Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
                      10/24/2005 18:03

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.

Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
4,402 records
Balance: 875,331,945

Selection Criteria: All records
Table of Contents

Debt-to-Income Ratio
Property Type (Stated Doc)
Property Type (No Documentation)
INTEREST ONLY LOANS Documentation Type

1. Debt-to-Income Ratio

Debt-to-Income Ratio	# of mtge loans	bal as of cutoff	% of bal as of cut-off	remaining term to maturity	DTI %	mtge rates	fico	orig cltv
0.01 - 5.00	4	1,734,202.85	0.20	358	2.32	7.227	598	84.63
5.01 - 10.00	14	2,084,525.08	0.24	351	6.99	8.045	617	81.30
10.01 - 15.00	25	6,270,656.93	0.72	358	12.80	7.308	636	84.86
15.01 - 20.00	67	12,498,253.79	1.43	356	17.64	7.265	627	81.73
20.01 - 25.00	121	17,489,451.80	2.00	353	22.87	7.552	633	79.54
25.01 - 30.00	243	38,862,436.35	4.44	354	27.79	7.371	634	81.04
30.01 - 35.00	428	75,620,478.10	8.64	354	32.59	7.320	640	81.50
35.01 - 40.00	710	126,600,533.99	14.46	351	37.84	7.323	649	82.09
40.01 - 45.00	999	200,415,446.82	22.90	349	42.66	7.290	657	82.94
45.01 - 50.00	1,566	345,681,777.26	39.49	350	47.87	7.231	658	83.12
50.01 - 55.00	225	48,074,182.36	5.49	357	52.68	7.176	616	79.12
Total:	4,402	875,331,945.33	100.00	351	41.91	7.278	650	82.40

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2. Property Type (Stated Doc)

Property Type (Stated Doc)	# loans	avg loan bal	wtd avg gross coupon	wtd avg gross margin	wtd avg DTI	% self employed	% owner occupied	wtd avg LTV	wtd avg fico	% rate term refi	% cashout refi	% IO	wtd avg IO term
Condominium	202	168,775.01	7.398	5.848	42.90	28.29	97.73	83.16	688	8.90	5.11	73.78	44
Manufactured Home	1	405,000.00	6.675	5.800	42.24	100.00	100.00	69.83	637	100.00	0.00	100.00	60
Planned Unit Development	311	218,105.84	7.377	5.802	41.95	39.60	96.80	82.75	678	19.00	5.29	65.90	40
Single Family Attached	13	139,595.82	7.493	5.591	41.48	0.00	100.00	82.73	702	0.00	0.00	59.86	36
Single Family Detached	1,354	224,750.88	7.293	5.724	42.99	34.16	97.90	82.79	680	22.43	7.73	73.40	44
Townhouse	5	140,682.44	7.111	5.845	39.32	43.20	69.63	86.27	686	0.00	0.00	47.02	28
Two-to-Four Family	141	296,524.08	7.339	5.708	43.77	35.87	92.92	83.19	689	23.37	3.62	68.17	41
Total:	2,027	222,481.11	7.318	5.744	42.89	34.63	97.23	82.85	681	20.92	6.74	71.74	43

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3. Property Type (No Documentation)

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4. INTEREST ONLY LOANS Documentation Type

INTEREST ONLY LOANS Documentation Type	# loans	avg loan bal	wtd avg gross coupon	wtd avg gross margin	wtd avg DTI	% self employed	% owner occupied	wtd avg LTV	wtd avg fico	% rate term refi	% cashout refi	% IO	wtd avg IO term
12 Month Bank Statements	90	310,387.93	7.074	5.856	36.41	66.08	95.41	82.42	635	23.85	19.95	100.00	60
24 Month Bank Statements	30	323,151.03	7.077	5.779	36.12	79.16	91.11	82.88	623	49.74	16.54	100.00	60
Full Documentation	752	228,839.94	6.920	5.718	43.03	3.71	97.58	81.72	630	41.82	13.50	100.00	60
Limited Documentation	9	295,894.67	6.917	6.024	41.15	68.14	100.00	78.27	648	27.26	0.00	100.00	60
Stated Income Self-Employed	334	349,737.65	6.935	5.666	41.87	90.59	97.20	81.73	676	24.26	7.87	100.00	60
Stated Income Wage Earner	680	304,009.90	7.015	5.821	44.09	1.48	98.16	81.90	687	18.17	4.68	100.00	60
Total:	1,895	282,806.98	6.971	5.756	42.70	26.72	97.50	81.83	662	28.01	9.20	100.00	60

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Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 24, 2005 14:15

Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
4,402 records
Balance: 875,331,945

Selection Criteria: All records
Table of Contents

Remaining Balance
FICO
LTV(1)
Loan Purpose
Property Type
Occupancy
State
Documentation
IO
LIEN
Loans with Silent Seconds

1. Remaining Balance

Remaining Balance	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
0.01 - 50000.00	318	11,142,284.39	35,038.63	1.27	9.846	195	703	96.11	96.75	40.47	24.09	0.00	0.00	0.00	0.00
50000.01 - 70000.00	350	21,192,413.84	60,549.75	2.42	8.882	292	650	86.02	93.81	39.90	50.74	0.00	0.00	2.91	0.00
70000.01 - 75000.00	84	6,109,855.41	72,736.37	0.70	8.623	312	643	83.62	91.48	39.19	59.55	0.00	0.00	6.00	0.00
75000.01 - 100000.00	427	37,718,667.51	88,334.12	4.31	8.232	323	634	84.28	93.23	39.96	63.68	0.00	0.00	10.17	0.00
100000.01 - 200000.00	1,536	223,559,275.96	145,546.40	25.54	7.449	352	634	81.44	92.35	40.60	61.70	0.00	0.00	40.10	0.00
200000.01 - 300000.00	750	184,107,927.44	245,477.24	21.03	7.215	358	644	81.23	91.38	42.37	43.22	0.00	0.00	67.47	0.00
300000.01 - 400000.00	524	180,646,341.54	344,744.93	20.64	6.958	358	653	82.25	91.97	42.81	30.79	0.00	0.00	76.99	0.00
400000.01 - 500000.00	249	111,465,389.56	447,652.17	12.73	6.984	358	663	82.88	92.55	43.27	19.35	0.00	0.00	82.22	0.00
500000.01 - 1000000.00	163	98,193,059.81	602,411.41	11.22	6.854	358	677	83.61	93.84	42.27	15.48	0.00	0.00	88.11	0.00
1000000.01 >=	1	1,196,729.87	1,196,729.87	0.14	6.500	357	648	62.34	70.00	46.32	100.00	0.00	0.00	0.00	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

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2. FICO

FICO	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
<= 599	1,005	172,708,806.90	171,849.56	19.73	7.753	358	571	80.20	84.54	41.22	73.61	0.00	0.00	29.83	0.00
600 - 619	506	99,804,423.19	197,241.94	11.40	7.201	358	609	82.25	90.65	40.18	72.89	0.00	0.00	57.79	0.00
620 - 639	468	92,421,107.23	197,481.00	10.56	7.158	358	629	81.91	90.99	40.77	59.75	0.00	0.00	64.42	0.00
640 - 659	463	107,882,633.81	233,007.85	12.32	7.049	357	649	81.83	92.62	41.83	42.67	0.00	0.00	69.58	0.00
660 - 679	511	134,914,854.16	264,021.24	15.41	6.995	358	669	82.01	96.09	43.15	16.40	0.00	0.00	77.80	0.00
680 - 699	569	102,406,255.00	179,975.84	11.70	7.326	335	689	84.21	96.14	42.67	11.70	0.00	0.00	69.84	0.00
700 - 719	369	68,570,599.37	185,828.18	7.83	7.262	336	708	84.77	96.49	42.95	10.48	0.00	0.00	68.55	0.00
720 >=	511	96,623,265.67	189,086.63	11.04	7.236	335	746	84.54	96.92	42.84	10.09	0.00	0.00	71.04	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

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3. LTV(1)

LTV(1)	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
< 80.00	709	124,558,577.37	175,682.06	14.23	7.352	357	618	70.25	74.46	40.64	50.59	0.00	0.00	49.71	0.00
= 80.00	1,744	377,572,977.88	216,498.27	43.13	6.959	358	658	80.00	96.54	42.27	37.86	0.00	0.00	67.06	0.00
80.01 - 85.00	580	163,173,535.96	281,333.68	18.64	7.071	358	659	84.75	94.77	42.69	29.45	0.00	0.00	75.40	0.00
85.01 - 90.00	622	144,721,680.73	232,671.51	16.53	7.501	358	636	89.72	91.84	40.88	50.81	0.00	0.00	59.54	0.00
90.01 - 95.00	186	32,795,447.03	176,319.61	3.75	8.040	352	630	94.75	94.79	41.77	66.92	0.00	0.00	35.41	0.00
95.01 - 100.00	561	32,509,726.36	57,949.60	3.71	9.991	178	715	99.98	99.98	43.34	8.27	0.00	0.00	0.00	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

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4. Loan Purpose

Loan Purpose	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
Purchase	2,819	526,831,575.00	186,885.98	60.19	7.233	348	666	83.31	97.14	42.63	31.23	0.00	0.00	63.88	0.00
Refinance - Cashout	373	85,614,057.42	229,528.30	9.78	7.311	356	624	80.81	84.20	40.32	52.27	0.00	0.00	57.57	0.00
Refinance - Rate/Term	1,210	262,886,312.91	217,261.42	30.03	7.359	356	627	81.10	85.41	40.99	54.37	0.00	0.00	57.09	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

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5. Property Type

Property Type	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
Condominium	344	61,538,368.64	178,890.61	7.03	7.239	349	660	82.79	95.10	43.34	37.49	0.00	0.00	71.47	0.00
Manufactured Home	1	405,000.00	405,000.00	0.05	6.675	359	637	69.83	69.83	42.24	0.00	0.00	0.00	100.00	0.00
Planned Unit Development	718	149,678,982.75	208,466.55	17.10	7.239	353	645	82.21	92.45	41.51	46.90	0.00	0.00	59.20	0.00
Single Family Attached	36	4,935,124.04	137,086.78	0.56	7.450	351	650	82.18	93.06	40.14	51.31	0.00	0.00	37.50	0.00
Single Family Detached	3,059	592,873,455.08	193,812.83	67.73	7.288	351	648	82.42	92.27	41.78	40.69	0.00	0.00	60.60	0.00
Townhouse	16	2,421,350.74	151,334.42	0.28	7.399	353	616	86.16	90.57	42.00	68.65	0.00	0.00	20.94	0.00
Two-to-Four Family	228	63,479,664.08	278,419.58	7.25	7.306	350	676	82.20	90.43	42.82	21.23	0.00	0.00	65.00	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

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6. Occupancy

Occupancy	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
Investment Property	122	22,559,586.82	184,914.65	2.58	7.725	358	663	76.33	76.65	39.61	29.16	0.00	0.00	59.30	0.00
Primary Home	4,280	852,772,358.51	199,245.88	97.42	7.267	351	650	82.56	92.77	41.97	40.53	0.00	0.00	61.28	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

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7. State

State	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
California	1,168	352,965,791.76	302,196.74	40.32	6.968	349	668	82.29	92.55	43.80	22.10	0.00	0.00	84.90	0.00
Georgia	122	16,463,382.76	134,945.76	1.88	7.349	353	629	83.05	94.58	38.52	60.75	0.00	0.00	40.36	0.00
Massachusetts	100	24,258,316.77	242,583.17	2.77	7.599	352	637	82.24	89.13	39.60	31.36	0.00	0.00	45.32	0.00
Other	3,012	481,644,454.04	159,908.52	55.02	7.487	352	638	82.47	92.30	40.76	53.27	0.00	0.00	45.39	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

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8. Documentation

Documentation	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
12 Month Bank Statements	203	49,885,870.43	245,743.20	5.70	7.255	356	623	82.51	91.54	34.89	0.00	0.00	0.00	56.00	0.00
24 Month Bank Statements	66	18,378,201.00	278,457.59	2.10	7.255	357	618	82.74	90.02	32.78	0.00	0.00	0.00	52.75	0.00
Full Documentation	2,089	352,187,174.19	168,591.28	40.23	7.232	356	616	81.82	90.46	42.18	100.00	0.00	0.00	48.86	0.00
Limited Documentation	17	3,911,493.95	230,087.88	0.45	7.254	350	653	80.47	94.82	37.56	0.00	0.00	0.00	68.08	0.00
Stated Income Self-Employed	668	168,594,954.14	252,387.66	19.26	7.247	349	674	82.41	93.25	41.38	0.00	0.00	0.00	69.29	0.00
Stated Income Wage Earner	1,359	282,374,251.61	207,780.91	32.26	7.361	344	685	83.11	94.44	43.79	0.00	0.00	0.00	73.21	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

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9. IO

IO	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
Yes	1,895	535,919,236.51	282,806.98	61.22	6.971	358	662	81.83	93.29	42.70	32.11	0.00	0.00	100.00	0.00
No	2,507	339,412,708.82	135,386.00	38.78	7.764	340	631	83.30	90.88	40.65	53.06	0.00	0.00	0.00	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

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10. LIEN

LIEN	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
1	3,810	841,387,685.73	220,836.66	96.12	7.169	358	647	81.70	92.06	41.86	41.53	0.00	0.00	63.69	0.00
2	592	33,944,259.60	57,338.28	3.88	9.996	178	715	99.64	99.64	43.23	8.12	0.00	0.00	0.00	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

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11. Loans with Silent Seconds

Loans with Silent Seconds	Number of Loans	Balance	Avg Balance	% of group balance	WAC	WARM	FICO	LTV(1)	CLTV	DTI	% of full doc	% of Primary Owner	% Single Family	% IO Loans	% Cashout
N	2,189	384,626,060.08	175,708.57	43.94	7.722	342	628	83.48	83.48	40.87	48.00	0.00	0.00	47.66	0.00
Y	2,213	490,705,885.25	221,737.86	56.06	6.930	358	667	81.55	99.31	42.72	34.15	0.00	0.00	71.86	0.00
Total:	4,402	875,331,945.33	198,848.69	100.00	7.278	351	650	82.40	92.35	41.91	40.23	0.00	0.00	61.22	0.00

(1) LTV refers to loan to value for first lien loans and combined loan to value for second lien loans.

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Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 22, 2005 12:41

Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
4,402 records
Balance: 875,331,945

Selection Criteria: All records
Table of Contents

Full Docs and Owner Occupied (IO Loans Only)
Not Full Docs and Owner Occupied (IO Loans Only)
Full Docs and Not Owner Occupied (IO Loans Only)
Not Full Docs and Not Owner Occupied (IO Loans Only)
Full Docs and Owner Occupied (Non IO Loans)
Not Full Docs and Owner Occupied (Non IO Loans)
Full Docs and Not Owner Occupied (Non IO Loans)
Not Full Docs and Not Owner Occupied (Non IO Loans)

1. Full Docs and Owner Occupied (IO Loans Only)

Full Docs and Owner Occupied (IO Loans Only)	LTV < 70	LTV >=70 to <80	LTV >=80 to <100	LTV >= 100
550 - 569	2.34	1.06	5.65	0.00
570 - 589	1.26	1.25	4.97	0.00
590 - 609	0.74	2.19	11.77	0.00
610 - 629	1.01	1.87	20.30	0.00
630 - 649	0.39	1.40	15.51	0.00
650 - 669	0.18	0.34	13.65	0.00
670 - 689	0.24	0.14	5.70	0.00
690 - 709	0.00	0.08	3.69	0.00
710 - 729	0.00	0.00	1.10	0.00
730 >=	0.00	0.21	2.98	0.00
Total:	6.17	8.53	85.31	0.00

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2. Not Full Docs and Owner Occupied (IO Loans Only)

Not Full Docs and Owner Occupied (IO Loans Only)	LTV < 70	LTV >=70 to <80	LTV >=80 to <100	LTV >= 100
550 - 569	0.25	0.95	0.85	0.00
570 - 589	0.67	0.37	0.95	0.00
590 - 609	0.59	0.11	2.09	0.00
610 - 629	0.38	0.93	5.17	0.00
630 - 649	0.47	0.55	9.90	0.00
650 - 669	0.14	0.69	17.01	0.00
670 - 689	0.00	0.50	21.61	0.00
690 - 709	0.13	1.01	12.65	0.00
710 - 729	0.10	0.25	9.19	0.00
730 >=	0.29	0.49	11.73	0.00
Total:	3.01	5.85	91.14	0.00

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3. Full Docs and Not Owner Occupied (IO Loans Only)

Full Docs and Not Owner Occupied (IO Loans Only)	LTV < 70	LTV >=70 to <80	LTV >=80 to <100	LTV >= 100
550 - 569	0.00	5.36	4.79	0.00
590 - 609	2.40	11.55	0.00	0.00
610 - 629	0.00	14.60	0.00	0.00
630 - 649	0.00	0.00	6.42	0.00
650 - 669	0.00	0.00	8.63	0.00
670 - 689	0.00	10.70	14.05	0.00
690 - 709	3.60	0.00	10.07	0.00
710 - 729	0.00	0.00	5.23	0.00
730 >=	0.00	0.00	2.61	0.00
Total:	5.99	42.22	51.79	0.00

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4. Not Full Docs and Not Owner Occupied (IO Loans Only)

Not Full Docs and Not Owner Occupied (IO Loans Only)	LTV < 70	LTV >=70 to <80	LTV >=80 to <100	LTV >= 100
570 - 589	0.00	1.14	0.00	0.00
590 - 609	0.00	0.00	2.73	0.00
610 - 629	1.51	2.31	2.17	0.00
630 - 649	2.29	2.59	8.90	0.00
650 - 669	0.00	2.89	15.79	0.00
670 - 689	1.12	2.61	16.71	0.00
690 - 709	6.52	7.00	0.00	0.00
710 - 729	1.52	0.00	6.43	0.00
730 >=	0.00	9.94	5.82	0.00
Total:	12.96	28.48	58.56	0.00

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5. Full Docs and Owner Occupied (Non IO Loans)

Full Docs and Owner Occupied (Non IO Loans)	LTV < 70	LTV >=70 to <80	LTV >=80 to <100	LTV >= 100
<= 549	1.51	2.58	6.35	0.00
550 - 569	0.90	0.96	10.03	0.00
570 - 589	0.57	1.70	15.03	0.00
590 - 609	1.14	3.21	17.80	0.00
610 - 629	0.80	2.15	10.41	0.00
630 - 649	1.03	1.48	9.44	0.00
650 - 669	0.29	0.64	5.23	0.00
670 - 689	0.31	0.32	1.38	0.28
690 - 709	0.00	0.00	1.50	0.67
710 - 729	0.00	0.18	0.58	0.11
730 >=	0.00	0.13	0.88	0.40
Total:	6.55	13.35	78.63	1.46

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6. Not Full Docs and Owner Occupied (Non IO Loans)

Not Full Docs and Owner Occupied (Non IO Loans)	LTV <70	LTV >=70 to <80	LTV >=80 to <100	LTV >= 100
<= 549	0.45	1.40	1.67	0.00
550 - 569	0.71	1.17	1.86	0.00
570 - 589	0.92	0.88	5.28	0.00
590 - 609	0.46	1.12	4.97	0.00
610 - 629	0.09	0.83	6.86	0.00
630 - 649	0.49	1.49	6.07	0.00
650 - 669	0.68	0.89	9.60	0.00
670 - 689	0.14	1.30	11.98	4.20
690 - 709	0.03	0.52	7.62	5.77
710 - 729	0.35	0.89	3.81	3.87
730 >=	0.04	0.41	5.90	5.28
Total:	4.37	10.90	65.61	19.12

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7. Full Docs and Not Owner Occupied (Non IO Loans)

Full Docs and Not Owner Occupied (Non IO Loans)	LTV < 70	LTV >=70 to <80	LTV >=80 to <100	LTV >= 100
<= 549	0.00	0.00	3.72	0.00
550 - 569	7.96	0.00	0.00	0.00
570 - 589	0.00	0.00	7.06	0.00
590 - 609	2.07	6.84	25.33	0.00
610 - 629	2.49	8.09	8.57	0.00
630 - 649	4.15	0.00	4.43	0.00
650 - 669	5.81	2.51	0.00	0.00
670 - 689	0.00	0.00	4.82	0.00
690 - 709	0.00	0.00	3.15	0.00
730 >=	0.00	0.00	2.99	0.00
Total:	22.48	17.45	60.07	0.00

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8. Not Full Docs and Not Owner Occupied (Non IO Loans)

Not Full Docs and Not Owner Occupied (Non IO Loans)	LTV < 70	LTV >=70 to <80	LTV >=80 to <100	LTV >= 100
550 - 569	3.81	0.96	1.51	0.00
570 - 589	0.00	0.00	3.01	0.00
590 - 609	0.74	0.00	0.00	0.00
610 - 629	1.68	0.00	5.35	0.00
630 - 649	0.00	2.80	13.20	0.00
650 - 669	0.00	14.51	5.99	0.00
670 - 689	0.84	0.00	6.73	0.00
690 - 709	0.00	11.49	11.49	0.00
710 - 729	0.00	3.81	3.93	0.00
730 >=	3.92	0.00	4.25	0.00
Total:	10.98	33.57	55.45	0.00

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Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 25, 2005 12:15

                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  4,402 RECORDS
                              BALANCE: 875,331,945

--------------------------------------------------------------------------------

SELECTION CRITERIA: ALL RECORDS
TABLE OF CONTENTS

1. Property Type (2 - 4 Family Only)
2. ZIP (2 - 4 Family Only)
3. City (2 - 4 Family Only)
4. ZIP (Investor Property)
5. City (Investor Property)
6. FICO
7. DTI (Aggregate)
8. DTI (IO Loans Only)
9. DTI (2 to 4 Family Only)
10. DTI (Investor Property)

--------------------------------------------------------------------------------

1. PROPERTY TYPE (2 - 4 FAMILY ONLY)



                                   AGGREGATE                            WEIGHTED    AVERAGE    WEIGHTED
                     NUMBER OF     PRINCIPAL    PERCENT OF   WEIGHTED   AVERAGE    PRINCIPAL   AVERAGE       PERCENT
PROPERTY TYPE        MORTGAGE       BALANCE      MORTGAGE    AVERAGE     CREDIT     BALANCE    ORIGINAL       FULL
(2 - 4 FAMILY ONLY)    LOANS      OUTSTANDING      POOL       COUPON     SCORE    OUTSTANDING    LTV      DOCUMENTATION
2-Unit                     148  $ 37,317,579.02      58.79%      7.32%       673  $252,145.80     83.03%          16.11%
3-Unit                      45    14,423,016.56      22.72      7.322        678   320,511.48     81.26           36.12
4-Unit                      35    11,739,068.50      18.49      7.251        680   335,401.96     80.74            19.2
TOTAL:                     228  $ 63,479,664.08     100.00%      7.31%       676  $278,419.58     82.20%          21.23%





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2. ZIP (2 - 4 FAMILY ONLY)



                                                               AGGREGATE
                                             NUMBER OF         PRINCIPAL       PERCENT OF
                                             MORTGAGE           BALANCE         MORTGAGE
ZIP (2 - 4 FAMILY ONLY)                        LOANS          OUTSTANDING         POOL
90806                                                4       $ 1,983,350.00          3.12%
90201                                                5         1,690,000.00          2.66
90003                                                4         1,640,104.05          2.58
7107                                                 4         1,340,607.80          2.11
90018                                                4         1,090,910.57          1.72
2149                                                 2         1,027,921.15          1.62
90250                                                2           978,750.00          1.54
95076                                                2           894,961.53          1.41
60660                                                3           864,492.28          1.36
90731                                                1           850,000.00          1.34
Other                                              197        51,118,566.71         80.53
TOTAL:                                             228       $63,479,664.08        100.00%





--------------------------------------------------------------------------------

3. CITY (2 - 4 FAMILY ONLY)



                                                               AGGREGATE
                                             NUMBER OF         PRINCIPAL       PERCENT OF
                                              MORTGAGE          BALANCE         MORTGAGE
CITY (2 - 4 FAMILY ONLY)                       LOANS          OUTSTANDING         POOL
LOS ANGELES, CA                                     20         8,047,922.33         12.68%
CHICAGO, IL                                         32         7,765,393.65         12.23
LONG BEACH, CA                                      13         4,211,803.17          6.63
SANTA ANA, CA                                        3         1,368,102.19          2.16
NEWARK, NJ                                           4         1,340,607.80          2.11
SAN JOSE, CA                                         2         1,330,000.00           2.1
BELL GARDENS, CA                                     3         1,070,000.00          1.69
EVERETT, MA                                          2         1,027,921.15          1.62
HAWTHORNE, CA                                        2           978,750.00          1.54
WATSONVILLE, CA                                      2           894,961.53          1.41
Other                                              145        35,444,202.27         55.84
TOTAL:                                             228        63,479,664.08        100.00%





--------------------------------------------------------------------------------

4. ZIP (INVESTOR PROPERTY)



                                                               AGGREGATE
                                             NUMBER OF         PRINCIPAL       PERCENT OF
                                              MORTGAGE          BALANCE         MORTGAGE
ZIP (INVESTOR PROPERTY)                        LOANS          OUTSTANDING         POOL
92104                                                2       $   775,450.00          3.44%
90732                                                1           609,000.00           2.7
90057                                                1           600,000.00          2.66
98312                                                1           500,000.00          2.22
90706                                                1           499,266.62          2.21
20758                                                1           499,217.55          2.21
90042                                                1           468,000.00          2.07
90713                                                1           467,313.56          2.07
92543                                                1           420,000.00          1.86
90201                                                1           418,000.00          1.85
Other                                              111        17,303,339.09          76.7
TOTAL:                                             122       $22,559,586.82        100.00%





--------------------------------------------------------------------------------

5. CITY (INVESTOR PROPERTY)



                                                               AGGREGATE
                                             NUMBER OF         PRINCIPAL       PERCENT OF
                                              MORTGAGE          BALANCE         MORTGAGE
CITY (INVESTOR PROPERTY)                       LOANS          OUTSTANDING         POOL
SAN DIEGO, CA                                        4         1,252,450.00          5.55%
LOS ANGELES, CA                                      2         1,068,000.00          4.73
CHICAGO, IL                                          5           788,407.29          3.49
SAN PEDRO, CA                                        1           609,000.00           2.7
AURORA, CO                                           3           531,300.00          2.36
BREMERTON, WA                                        1           500,000.00          2.22
BELLFLOWER, CA                                       1           499,266.62          2.21
FRIENDSHIP, MD                                       1           499,217.55          2.21
LAKEWOOD, CA                                         1           467,313.56          2.07
HEMET, CA                                            1           420,000.00          1.86
Other                                              102        15,924,631.80         70.59
TOTAL:                                             122        22,559,586.82        100.00%





--------------------------------------------------------------------------------

6. FICO



                                   AGGREGATE                            WEIGHTED    AVERAGE    WEIGHTED
                     NUMBER OF     PRINCIPAL    PERCENT OF   WEIGHTED   AVERAGE    PRINCIPAL   AVERAGE       PERCENT
                     MORTGAGE       BALANCE      MORTGAGE    AVERAGE     CREDIT     BALANCE    ORIGINAL       FULL
FICO                   LOANS      OUTSTANDING      POOL       COUPON     SCORE    OUTSTANDING    LTV      DOCUMENTATION
<= 650                   2,254  $428,307,847.92      48.93%      7.39%       603  $190,021.23     81.23%          65.42%
651 - 660                  219    53,677,425.72       6.13      7.033        656   245,102.40     82.36           42.33
661 >=                   1,929   393,346,671.70      44.94      7.187        700   203,912.22     83.68           12.52
TOTAL:                   4,402  $875,331,945.33     100.00%      7.28%       650  $198,848.69     82.40%          40.23%





--------------------------------------------------------------------------------

7. DTI (AGGREGATE)



                                   AGGREGATE                            WEIGHTED    AVERAGE    WEIGHTED
                     NUMBER OF     PRINCIPAL    PERCENT OF   WEIGHTED   AVERAGE    PRINCIPAL   AVERAGE       PERCENT
                     MORTGAGE       BALANCE      MORTGAGE    AVERAGE     CREDIT     BALANCE    ORIGINAL       FULL
DTI (AGGREGATE)        LOANS      OUTSTANDING      POOL       COUPON     SCORE    OUTSTANDING    LTV      DOCUMENTATION    DTI
0.01 - 10.00                18  $  3,818,727.93       0.44%      7.67%       609  $212,151.55     82.81%          17.02%   4.87
10.01 - 20.00               92    18,768,910.73       2.14      7.279        630   204,009.90     82.78           25.88   16.02
20.01 - 30.00              364    56,351,888.15       6.44      7.427        633   154,812.88     80.57           51.51   26.26
30.01 - 40.00            1,138   202,221,012.09       23.1      7.322        646   177,698.60     81.87           43.37   35.88
40.01 - 50.00            2,565   546,097,224.09      62.39      7.253        657   212,903.40     83.06           34.62   45.96
50.01 - 60.00              225    48,074,182.36       5.49      7.176        616   213,663.03     79.12           85.02   52.68
TOTAL:                   4,402  $875,331,945.33     100.00%      7.28%       650  $198,848.69     82.40%          40.23%  41.91
wa DTI: 41.91





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8. DTI (IO LOANS ONLY)



                                   AGGREGATE                            WEIGHTED    AVERAGE    WEIGHTED
                     NUMBER OF     PRINCIPAL    PERCENT OF   WEIGHTED   AVERAGE    PRINCIPAL   AVERAGE       PERCENT
                     MORTGAGE       BALANCE      MORTGAGE    AVERAGE     CREDIT     BALANCE    ORIGINAL       FULL
DTI (IO LOANS ONLY)    LOANS      OUTSTANDING      POOL       COUPON     SCORE    OUTSTANDING    LTV      DOCUMENTATION    DTI
0.01 - 10.00                 4  $  1,676,349.99       0.31%      7.21%       616  $419,087.50     85.85%          35.80%   3.77
10.01 - 20.00               26     7,778,145.00       1.45      7.083        644   299,159.42        83           14.31   16.89
20.01 - 30.00              110    26,198,774.97       4.89      7.083        644   238,170.68     79.34              43    26.6
30.01 - 40.00              440   114,379,216.42      21.34      7.018        658   259,952.76     81.27           34.33   36.04
40.01 - 50.00            1,225   361,529,640.62      67.46       6.95        667   295,126.24     82.36           27.55   46.04
50.01 - 60.00               90    24,357,109.51       4.54      6.876        633   270,634.55      78.7           83.07    52.8
TOTAL:                   1,895  $535,919,236.51     100.00%      6.97%       662  $282,806.98     81.83%          32.11%   42.7
wa DTI: 42.70





--------------------------------------------------------------------------------

9. DTI (2 TO 4 FAMILY ONLY)



                                   AGGREGATE                            WEIGHTED    AVERAGE    WEIGHTED
                     NUMBER OF     PRINCIPAL    PERCENT OF   WEIGHTED   AVERAGE    PRINCIPAL   AVERAGE       PERCENT
DTI (2 TO 4          MORTGAGE       BALANCE      MORTGAGE    AVERAGE     CREDIT     BALANCE    ORIGINAL       FULL
FAMILY ONLY)           LOANS      OUTSTANDING      POOL       COUPON     SCORE    OUTSTANDING    LTV      DOCUMENTATION    DTI
10.01 - 20.00                4  $  1,001,579.79       1.58%      7.59%       642  $250,394.95     85.27%          14.80%  15.72
20.01 - 30.00               12     2,725,085.59       4.29      7.283        665   227,090.47     76.69           18.01   24.88
30.01 - 40.00               55    13,731,411.22      21.63       7.52        660   249,662.02     81.31           25.86   35.71
40.01 - 50.00              144    42,092,980.10      66.31      7.253        686   292,312.36     83.43           15.42      46
50.01 - 60.00               13     3,928,607.39       6.19      7.072        633   302,200.57     75.16           71.19   52.88
TOTAL:                     228  $ 63,479,664.08     100.00%      7.31%       676  $278,419.58     82.20%          21.23%  42.82
wa DTI: 42.82





--------------------------------------------------------------------------------

10. DTI (INVESTOR PROPERTY)



                                   AGGREGATE                            WEIGHTED    AVERAGE    WEIGHTED
                     NUMBER OF     PRINCIPAL    PERCENT OF   WEIGHTED   AVERAGE    PRINCIPAL   AVERAGE       PERCENT
DTI (INVESTOR        MORTGAGE       BALANCE      MORTGAGE    AVERAGE     CREDIT     BALANCE    ORIGINAL       FULL
PROPERTY)              LOANS      OUTSTANDING      POOL       COUPON     SCORE    OUTSTANDING    LTV      DOCUMENTATION    DTI
0.01 - 10.00                 3  $    379,724.43       1.68%      7.63%       614  $126,574.81     77.37%           0.00%   7.44
10.01 - 20.00                7     1,320,470.94       5.85      7.967        675   188,638.71     74.58               0   16.21
20.01 - 30.00               15     2,800,419.14      12.41      7.334        645   186,694.61     76.45           54.21   25.57
30.01 - 40.00               29     4,317,101.58      19.14      8.024        649   148,865.57     76.97           31.39    35.6
40.01 - 50.00               59    11,913,717.02      52.81      7.703        673   201,927.41     77.05           20.41      46
50.01 - 60.00                9     1,828,153.70        8.1      7.603        655   203,128.19     71.02           69.67   52.54
TOTAL:                     122  $ 22,559,586.82     100.00%      7.73%       663  $184,914.65     76.33%          29.16%  39.61
wa DTI: 39.61





--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
                        10/26/2005 16:20

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.

Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
4,402 records
Balance: 875,331,945

Selection Criteria: All records
Table of Contents

Range of Credit Scores - for Fixed Rate Loans
Range of Credit Scores - for ARMs

1. Range of Credit Scores - for Fixed Rate Loans

Range of Credit Scores - for Fixed Rate Loans	Number of Mortgage Loans	Aggregate Principal Balance Outstanding	Percent of Mortgage Pool	Weighted Average Coupon	Weighted Average Credit Score	Average Principal Balance Outstanding	Weighted Average Original LTV	Percent Full Documentation
501 to 525	1	$85,966.19	0.09%	10.550%	510	$85,966.19	49.14%	100.00%
526 to 550	10	1,576,864.67	1.67	8.164	543	157,686.47	77.67	100.00
551 to 575	27	3,573,131.87	3.78	8.058	563	132,338.22	77.30	76.73
576 to 600	63	9,054,130.77	9.59	7.553	591	143,716.36	76.37	78.44
601 to 625	74	11,830,805.41	12.53	7.341	612	159,875.75	78.68	76.76
626 to 650	74	12,468,739.91	13.20	7.269	639	168,496.49	79.88	64.60
651 to 675	59	11,989,160.14	12.69	7.126	662	203,206.10	80.81	62.54
676 to 700	276	19,267,645.33	20.40	9.198	689	69,810.31	93.57	18.16
701 to 725	184	12,005,343.51	12.71	9.472	711	65,246.43	96.23	13.39
726 to 750	109	7,654,061.68	8.10	9.409	737	70,220.75	95.71	19.94
751 to 775	50	3,052,019.62	3.23	9.546	761	61,040.39	97.64	15.51
776 to 800	31	1,834,882.04	1.94	9.846	785	59,189.74	99.50	9.38
801 to 825	1	62,475.90	0.07	10.640	805	62,475.90	100.00	0.00
Total:	959	$94,455,227.05	100.00%	8.308%	664	$98,493.46	86.47%	45.97%

Maximum FICO: 805
Minimum FICO: 510
WA FICO: 664

Top

2. Range of Credit Scores - for ARMs

Range of Credit Scores - for ARMs	Number of Mortgage Loans	Aggregate Principal Balance Outstanding	Percent of Mortgage Pool	Weighted Average Coupon	Weighted Average Credit Score	Average Principal Balance Outstanding	Weighted Average Original LTV	Percent Full Documentation
501 to 525	32	$5,391,661.73	0.69%	8.829%	518	$168,489.43	73.10%	80.91%
526 to 550	129	20,504,091.51	2.63	8.369	541	158,946.45	79.20	71.10
551 to 575	316	57,397,765.87	7.35	7.945	563	181,638.50	81.28	72.64
576 to 600	455	80,863,442.67	10.36	7.337	589	177,721.85	81.04	74.72
601 to 625	548	112,612,690.96	14.42	7.186	613	205,497.61	82.20	67.27
626 to 650	525	112,948,556.35	14.46	7.085	638	215,140.11	82.14	48.49
651 to 675	547	142,081,507.93	18.20	7.000	664	259,746.82	82.17	22.90
676 to 700	417	113,759,420.95	14.57	6.934	687	272,804.37	82.25	10.49
701 to 725	241	67,463,778.26	8.64	6.847	712	279,932.69	82.48	8.99
726 to 750	127	37,969,433.81	4.86	6.752	736	298,971.92	82.53	8.25
751 to 775	69	20,095,675.82	2.57	6.988	761	291,241.68	82.45	13.03
776 to 800	33	8,020,576.43	1.03	6.788	786	243,047.77	81.09	5.58
801 to 825	4	1,768,116.00	0.23	6.610	805	442,029.00	85.79	26.11
Total:	3,443	$780,876,718.29	100.00%	7.154%	648	$226,801.25	81.91%	39.54%

Maximum FICO: 815
Minimum FICO: 502
WA FICO: 648

Top

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 26, 2005 13:13

Disclaimer:This material is provided to you solely for informational purposes, is intended for your use only and does not constitute an offer or commitment, a solicitation of an offer or commitment, or any advice or recommendation, to enter into or conclude any transaction (whether on the indicative terms shown or otherwise). This material has been prepared by CSFB based on assumptions and parameters determined by it in good faith. It is important that you (recipient) understand that those assumptions and parameters are not the only ones that might reasonably have been selected or that could apply in connection with the preparation of these materials or an assessment of the transaction described above. A variety of other or additional assumptions or parameters, or other market factors and other considerations, could result in different contemporaneous good faith analyses or assessment of the transaction described above. Past performance should not be taken as an indication or guarantee of future performance, and no representation or warranty, express or implied is made regarding future performance. Opinions and estimates may be changed without notice. The information set forth above has been obtained from or based upon sources believed by CSFB to be reliable, but CSFB does not represent or warrant its accuracy or completeness. This material does not purport to contain all of the information that an interested party may desire. In all cases, interested parties should conduct their own investigation and analysis of the transaction(s) described in these materials and of the data set forth in them. Each person receiving these materials should make an independent assessment of the merits of pursuing a transaction described in these materials and should consult their own professional advisors. CSFB may, from time to time, participate or invest in other financing transactions with the issuers of the securities referred to herein, perform services for or solicit business from such issuers, and/ or have a position or effect transactions in the securities or derivatives thereof. Structured securities are complex instruments, typically involve a high degree of risk and are intended for sale only to sophisticated investors who are capable of understanding and assuming the risks involved. The market value of any structured security may be affected by changes in economic, financial and political factors (including, but not limited to, spot and forward interest and exchange rates), time to maturity, market conditions and volatility and the credit quality of any issuer or reference issuer. Any investor interested in purchasing a structured product should conduct its own investigation and analysis of the product and consult with its own professional advisers as to the risks involved in making such a purchase.

                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  4,402 RECORDS
                              BALANCE: 875,331,945

--------------------------------------------------------------------------------

SELECTION CRITERIA: ALL RECORDS
TABLE OF CONTENTS

1. Summary
2. FICO
3. LTV(1)
4. DTI
5. Loan Purpose
6. Occupancy Type
7. Documentation
8. Property Type
9. Remaining Balance
10. State
11. CA_SPLIT
12. Loan Type
13. LIEN
14. Prepayment Term (months)
15. Mortgage Rate (WAC)
16. Margin
17. FICO
18. FICO (IO Only Bucket)
19. Remaining Balance (IO Loans Only)

--------------------------------------------------------------------------------

1. SUMMARY

Remaining Month to Roll: 24
Wtd Avg Remaining Term: 351
Wtd Avg Remaining IO Term (IO Loans Only): 58




--------------------------------------------------------------------------------

2. FICO



                                            REMAINING       % REMAINING   WA REMAINING LOAN
FICO                          # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
501 - 520                           17      2,186,123.63           0.25          128,595.51        9.766       510
521 - 540                           72     11,257,942.39           1.29          156,360.31        8.747       530
541 - 560                          225     39,682,113.21           4.53          176,364.95        8.009       552
561 - 580                          253     45,267,397.22           5.17          178,922.52        7.857       570
581 - 600                          466     80,053,478.83           9.15          171,788.58        7.322       590
601 - 620                          501     98,551,385.98          11.26          196,709.35        7.205       610
621 - 640                          471     94,238,361.56          10.77          200,081.45        7.166       630
641 - 660                          468    110,748,470.81          12.65          236,642.03        7.035       650
661 - 680                          511    129,995,852.14          14.85          254,395.01         7.01       670
681 - 700                          569    103,424,456.49          11.82          181,765.30        7.323       690
701 - 750                          661    125,092,617.25          14.29          189,247.53        7.227       721
751 >=                             188     34,833,745.81           3.98          185,285.88        7.304       770
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
FICO                          % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
501 - 520                        68.81             42.62              0               14.89        24.69     87.87         0
521 - 540                        77.74             40.73              0               10.89         8.06     64.48         0
541 - 560                         80.5             41.37           1.69                5.48        15.53      75.2     32.02
561 - 580                        81.36             40.64           1.91                6.28        18.78     73.58     41.17
581 - 600                        80.29              41.7           1.02                7.78         12.9     75.24     30.07
601 - 620                        81.86             39.98           2.27               11.03         16.3     71.07      56.9
621 - 640                        82.25             40.81           2.55               11.83        12.91     58.39     65.58
641 - 660                        81.84             42.02           2.67               13.33        12.52     40.92     70.47
661 - 680                        82.09             43.04           3.44                18.3         4.11     15.85     76.83
681 - 700                        84.24             42.74           3.17               18.13         5.06     11.74     69.84
701 - 750                        84.63             42.97            3.3               21.86          4.4      9.86     70.06
751 >=                           84.57             42.55           2.08               17.07         2.87     11.98     71.27
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22


Mean: 648
Median: 648
Standard Deviation: 59




--------------------------------------------------------------------------------

3. LTV(1)



                                            REMAINING       % REMAINING   WA REMAINING LOAN
LTV(1)                        # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
0.01 - 50.00                        46      6,923,348.74           0.79          150,507.58        7.324       602
50.01 - 55.00                       22      4,081,985.63           0.47          185,544.80        6.935       606
55.01 - 60.00                       42      7,420,580.73           0.85          176,680.49        7.292       598
60.01 - 65.00                       41      9,169,038.61           1.05          223,635.09        7.345       609
65.01 - 70.00                      115     24,021,461.98           2.74          208,882.28        7.426       613
70.01 - 75.00                      197     30,686,609.66           3.51          155,769.59        7.539       608
75.01 - 80.00                     1990    419,828,529.89          47.96          210,969.11        6.986       656
80.01 - 85.00                      580    163,173,535.96          18.64          281,333.68        7.071       659
85.01 - 90.00                      622    144,721,680.73          16.53          232,671.51        7.501       636
90.01 - 95.00                      186     32,795,447.03           3.75          176,319.61         8.04       630
95.01 - 100.00                     561     32,509,726.36           3.71           57,949.60        9.991       715
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
LTV(1)                        % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
0.01 - 50.00                     42.27              39.1           5.44               28.17        31.68     62.19     52.92
50.01 - 55.00                    53.09             37.44           1.22                8.64        37.07      53.9     67.56
55.01 - 60.00                    58.09              40.2           9.14                8.63        31.05     73.37     47.19
60.01 - 65.00                     62.8             43.08          12.92                17.2        22.24     59.27     48.55
65.01 - 70.00                    68.93             40.25           9.46               12.49        19.63     40.78     53.88
70.01 - 75.00                    73.79             40.52           7.09               13.32        17.07     50.12     42.26
75.01 - 80.00                    79.84             42.15           3.32               13.39         5.89     38.92     65.46
80.01 - 85.00                    84.75             42.69           0.89               17.42         8.85     29.45      75.4
85.01 - 90.00                    89.72             40.88            0.3               13.32        16.84     50.81     59.54
90.01 - 95.00                    94.75             41.77              0                13.2         9.79     66.92     35.41
95.01 - 100.00                   99.98             43.34              0               17.08         2.75      8.27         0
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22


Mean: 83.59
Median: 80.00
Standard Deviation: 9.87




--------------------------------------------------------------------------------

4. DTI



                                            REMAINING       % REMAINING   WA REMAINING LOAN
DTI                           # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
0.01 - 5.00                          4      1,734,202.85            0.2          433,550.71        7.227       598
5.01 - 10.00                        14      2,084,525.08           0.24          148,894.65        8.045       617
10.01 - 15.00                       25      6,270,656.93           0.72          250,826.28        7.308       636
15.01 - 20.00                       67     12,498,253.79           1.43          186,541.10        7.265       627
20.01 - 25.00                      121     17,489,451.80              2          144,540.92        7.552       633
25.01 - 30.00                      243     38,862,436.35           4.44          159,927.72        7.371       634
30.01 - 35.00                      428     75,620,478.10           8.64          176,683.36         7.32       640
35.01 - 40.00                      710    126,600,533.99          14.46          178,310.61        7.323       649
40.01 - 45.00                      999    200,415,446.82           22.9          200,616.06         7.29       657
45.01 - 50.00                     1566    345,681,777.26          39.49          220,741.88        7.231       658
50.01 - 55.00                      225     48,074,182.36           5.49          213,663.03        7.176       616
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
DTI                           % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
0.01 - 5.00                      84.63              2.32              0                   0        30.63      34.6     65.24
5.01 - 10.00                      81.3              6.99          18.22                   0        19.95       2.4     26.15
10.01 - 15.00                    84.86              12.8           5.41                7.52        13.58     18.43      28.7
15.01 - 20.00                    81.73             17.64           7.85                8.48        22.03     29.61     47.84
20.01 - 25.00                    79.54             22.87           6.49                11.2         10.4     39.68     42.55
25.01 - 30.00                    81.04             27.79           4.29                7.54        17.81     56.83     48.27
30.01 - 35.00                     81.5             32.59           2.39               15.83        11.62     47.09     52.34
35.01 - 40.00                    82.09             37.84           1.98               11.76         9.03     41.15     59.08
40.01 - 45.00                    82.94             42.66           2.26               14.62         8.48     33.18     63.56
45.01 - 50.00                    83.12             47.87           2.14               16.05         8.06     35.46     67.73
50.01 - 55.00                    79.12             52.68            3.8               15.31        15.05     85.02     50.67
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22


Mean: 41.18
Median: 43.15
Standard Deviation: 8.46




--------------------------------------------------------------------------------

5. LOAN PURPOSE



                                            REMAINING       % REMAINING   WA REMAINING LOAN
LOAN PURPOSE                  # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
Purchase                          2819    526,831,575.00          60.19          186,885.98        7.233       666
Refinance - Rate/Term             1210    262,886,312.91          30.03          217,261.42        7.359       627
Refinance - Cashout                373     85,614,057.42           9.78          229,528.30        7.311       624
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
LOAN PURPOSE                  % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
Purchase                         83.31             42.63           1.46               16.36            0     31.23     63.88
Refinance - Rate/Term             81.1             40.99            4.5               11.12            0     54.37     57.09
Refinance - Cashout              80.81             40.32           3.55               11.68          100     52.27     57.57
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22





--------------------------------------------------------------------------------

6. OCCUPANCY TYPE



                                            REMAINING       % REMAINING   WA REMAINING LOAN
OCCUPANCY TYPE                # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
N                                  122     22,559,586.82           2.58          184,914.65        7.725       663
O                                 4280    852,772,358.52          97.42          199,245.88        7.267       650
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
OCCUPANCY TYPE                % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
N                                76.33             39.61            100               30.65        13.47     29.16      59.3
O                                82.56             41.97              0                13.9         9.68     40.53     61.28
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22





--------------------------------------------------------------------------------

7. DOCUMENTATION



                                            REMAINING       % REMAINING   WA REMAINING LOAN
DOCUMENTATION                 # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
12 Month Bank Statements           203     49,885,870.43            5.7          245,743.20        7.255       623
24 Month Bank Statements            66     18,378,201.00            2.1          278,457.59        7.255       618
Full Documentation                2089    352,187,174.19          40.23          168,591.28        7.232       616
Limited Documentation               17      3,911,493.95           0.45          230,087.88        7.254       653
Stated Income Self-Employed        668    168,594,954.14          19.26          252,387.66        7.247       674
Stated Income Wage Earner         1359    282,374,251.62          32.26          207,780.91        7.361       685
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
DOCUMENTATION                 % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
12 Month Bank Statements         82.51             34.89           4.86                18.3        15.18         0        56
24 Month Bank Statements         82.74             32.78           5.67               12.02        15.85         0     52.75
Full Documentation               81.82             42.18           1.87               10.38        12.71       100     48.86
Limited Documentation            80.47             37.56              0                31.4            0         0     68.08
Stated Income Self-Employed      82.41             41.38           3.91               15.93         9.18         0     69.29
Stated Income Wage Earner        83.11             43.79            2.1               17.51         5.28         0     73.21
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22





--------------------------------------------------------------------------------

8. PROPERTY TYPE



                                            REMAINING       % REMAINING   WA REMAINING LOAN
PROPERTY TYPE                 # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
Condominium                        344     61,538,368.64           7.03          178,890.61        7.239       660
Manufactured Home                    1        405,000.00           0.05          405,000.00        6.675       637
Planned Unit Development           718    149,678,982.75           17.1          208,466.55        7.239       645
Single Family Attached              36      4,935,124.04           0.56          137,086.78         7.45       650
Single Family Detached            3059    592,873,455.08          67.73          193,812.83        7.288       648
Townhouse                           16      2,421,350.74           0.28          151,334.42        7.399       616
Two-to-Four Family                 228     63,479,664.08           7.25          278,419.58        7.306       676
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
PROPERTY TYPE                 % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
Condominium                      82.79             43.34           1.77                 100          7.9     37.49     71.47
Manufactured Home                69.83             42.24              0                 100            0         0       100
Planned Unit Development         82.21             41.51           2.25                   0         6.61      46.9      59.2
Single Family Attached           82.18             40.14           3.37                   0          7.1     51.31      37.5
Single Family Detached           82.42             41.78           2.01                   0        10.97     40.69      60.6
Townhouse                        86.16                42           8.82                   0        14.16     68.65     20.94
Two-to-Four Family                82.2             42.82           9.18                 100         8.09     21.23        65
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22





--------------------------------------------------------------------------------

9. REMAINING BALANCE



                                            REMAINING       % REMAINING   WA REMAINING LOAN
REMAINING BALANCE             # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
1 - 50000                          318     11,142,284.40           1.27           35,038.63        9.846       703
50001 - 75000                      434     27,302,269.25           3.12           62,908.45        8.824       648
75001 - 100000                     427     37,718,667.51           4.31           88,334.12        8.232       634
100001 - 125000                    466     52,536,514.41              6          112,739.30        7.736       636
125001 - 150000                    407     55,954,581.97           6.39          137,480.55        7.479       632
150001 - 200000                    663    115,068,179.58          13.15          173,556.83        7.304       635
200001 - 250000                    414     92,606,743.54          10.58          223,687.79        7.271       642
250001 - 300000                    336     91,501,183.90          10.45          272,324.95        7.159       647
300001 - 350000                    293     94,265,899.42          10.77          321,726.62        6.961       653
350001 - 400000                    231     86,380,442.11           9.87          373,941.31        6.955       654
400001 - 450000                    142     60,329,619.26           6.89          424,856.47        7.069       661
450001 - 500000                    107     51,135,770.30           5.84          477,904.40        6.883       665
500001 - 600000                     99     53,983,992.91           6.17          545,292.86        6.859       672
600001 - 700000                     41     26,326,495.59           3.01          642,109.65        6.811       672
700001 >=                           24     19,079,301.18           2.18          794,970.88        6.876       694
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
REMAINING BALANCE             % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
1 - 50000                        96.11             40.47           1.35                15.4         5.25     24.09         0
50001 - 75000                    85.48             39.74           3.59                9.48         6.63     52.71       3.6
75001 - 100000                   84.28             39.96           4.56                9.82         7.33     63.68     10.17
100001 - 125000                  83.13             40.08           2.49               10.64         6.72     61.67     25.08
125001 - 150000                  81.94             39.88           3.45               12.48         8.45     66.34      36.3
150001 - 200000                  80.44             41.18           2.96               11.49          8.7     59.45      48.8
200001 - 250000                  80.99             41.89           3.09               11.17        10.35     47.62     62.88
250001 - 300000                  81.46             42.86           3.31                17.5        11.43     38.76     72.11
300001 - 350000                  82.28             42.93              0               17.63          8.6     31.28     77.72
350001 - 400000                  82.23             42.69           2.16               14.34        10.33     30.26      76.2
400001 - 450000                  83.03             43.39           2.75               15.92        13.18     23.75     82.51
450001 - 500000                  82.71             43.13           4.76               16.78        11.32     14.16     81.87
500001 - 600000                  83.12             43.52           1.11                17.2         9.06      9.16     83.44
600001 - 700000                  84.01             40.28           2.31               21.75         9.72     16.52     95.07
700001 >=                         83.1             41.73              0               16.09        20.59     37.25     86.18
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22


Min Remaining Bal.: 19789
Max Remaining Bal.: 1196730




--------------------------------------------------------------------------------

10. STATE



                                            REMAINING       % REMAINING   WA REMAINING LOAN
STATE                         # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
California                        1168    352,965,791.76          40.32          302,196.74        6.968       668
Illinois                           396     70,626,060.82           8.07          178,348.64        7.739       650
Florida                            356     64,740,916.39            7.4          181,856.51        7.404       641
Arizona                            312     59,721,550.45           6.82          191,415.23        7.326       636
Washington                         294     52,919,979.32           6.05          179,999.93        7.249       640
Texas                              337     35,300,200.30           4.03          104,748.37        7.444       635
Colorado                           176     26,890,143.41           3.07          152,784.91        7.207       650
Massachusetts                      100     24,258,316.77           2.77          242,583.17        7.599       637
Maryland                            89     21,263,307.20           2.43          238,913.56        7.549       643
Virginia                            82     19,501,763.33           2.23          237,826.38        7.351       652
Missouri                           158     17,960,702.98           2.05          113,675.34        8.002       612
Georgia                            122     16,463,382.76           1.88          134,945.76        7.349       629
Nevada                              69     12,908,651.20           1.47          187,081.90        7.135       635
Oregon                              64     10,850,796.53           1.24          169,543.70        7.063       637
Michigan                            75     10,481,578.88            1.2          139,754.39        7.782       631
Other                              604     78,478,803.24           8.97          129,931.79        7.703       627
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
STATE                         % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
California                       82.29              43.8           2.01               19.87         12.2      22.1      84.9
Illinois                         83.01             41.64           1.91               23.64         1.24     40.93     40.92
Florida                          82.12             40.18           4.01                7.41        15.62     36.98     41.65
Arizona                          81.85             41.52           3.11                1.69         1.25     58.13     68.93
Washington                       82.36              39.4            4.6                6.29        21.62     58.67     55.62
Texas                            80.59             40.11           1.78                2.59         3.63     63.89      9.36
Colorado                         82.15             40.72           4.27               14.53         0.91     55.29     73.03
Massachusetts                    82.24              39.6           2.22               40.35        24.73     31.36     45.32
Maryland                         81.84             43.15           4.71                6.92         1.71     45.27        62
Virginia                         83.13             43.19           1.61                 9.8            0     42.22     73.16
Missouri                         84.24             38.74           2.14                 2.6          9.1     65.27     24.42
Georgia                          83.05             38.52           2.37                   0            0     60.75     40.36
Nevada                           81.18             41.22            3.9                4.65        10.73     70.79     63.73
Oregon                           82.11             39.24           4.24                6.03        25.23     53.83     50.05
Michigan                          84.9             42.05           2.74                6.88          1.3     55.86        41
Other                            83.29             40.26              2               11.48         7.13     63.87     24.74
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22





--------------------------------------------------------------------------------

11. CA_SPLIT



                                            REMAINING       % REMAINING   WA REMAINING LOAN
CA_SPLIT                      # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
CA-N                               202     64,196,324.20          18.19          317,803.59        6.885       669
CA-S                               966    288,769,467.56          81.81          298,933.20        6.987       668
TOTAL:                            1168    352,965,791.76            100          302,196.74        6.968       668


                                              % DTI (NON                                          REFI       FULL   INTEREST
CA_SPLIT                      % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
CA-N                              82.1             42.91           0.93               10.58         3.55     30.03     84.78
CA-S                             82.33             43.99           2.25               21.94        14.12     20.34     84.93
TOTAL:                           82.29              43.8           2.01               19.87         12.2      22.1      84.9





--------------------------------------------------------------------------------

12. LOAN TYPE



                                            REMAINING       % REMAINING   WA REMAINING LOAN
LOAN TYPE                     # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
2/28 LIBOR ARM                    1353    216,229,600.33           24.7          159,814.93         7.54       620
2/28 LIBOR IO ARM                 1608    457,723,019.78          52.29          284,653.62        6.963       663
30/15 BALLOON                      590     33,903,489.21           3.87           57,463.54         9.99       715
3/27 LIBOR ARM                     224     35,600,038.67           4.07          158,928.74         7.56       617
3/27 LIBOR IO ARM                  219     59,447,365.59           6.79          271,449.16        7.022       657
5/1 TREASURY ARM                     8      2,461,854.46           0.28          307,731.81        6.684       652
5/1 TREASURY IO ARM                 31      9,414,839.46           1.08          303,704.50        6.998       663
Fixed                              332     51,217,726.16           5.85          154,270.26         7.43       632
Fixed IO                            37      9,334,011.68           1.07          252,270.59        7.015       651
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
LOAN TYPE                     % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
2/28 LIBOR ARM                   81.98             40.53           3.24               10.83        10.77     54.67         0
2/28 LIBOR IO ARM                82.01              42.9            2.3               15.72         7.88     29.47       100
30/15 BALLOON                     99.6             43.31              0               17.37         2.91      8.33         0
3/27 LIBOR ARM                   82.95             40.44           2.88               15.92        13.37     61.28         0
3/27 LIBOR IO ARM                80.88             41.79           2.56               20.18        13.87      44.3       100
5/1 TREASURY ARM                 70.46             44.35              0                   0            0     82.96         0
5/1 TREASURY IO ARM              80.94             39.57           6.37                  10        27.47     57.94       100
Fixed                            78.92             39.42           2.26                9.37        14.24     68.74         0
Fixed IO                         80.22             42.09            7.8                8.08        25.37     57.73       100
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22





--------------------------------------------------------------------------------

13. LIEN



                                            REMAINING       % REMAINING   WA REMAINING LOAN
LIEN                          # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
1                                 3810    841,387,685.73          96.12          220,836.66        7.169       647
2                                  592     33,944,259.60           3.88           57,338.28        9.996       715
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
LIEN                          % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
1                                 81.7             41.86           2.68               14.21        10.06     41.53     63.69
2                                99.64             43.23              0               17.34         2.91      8.12         0
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22





--------------------------------------------------------------------------------

14. PREPAYMENT TERM (MONTHS)



                                            REMAINING       % REMAINING   WA REMAINING LOAN
PREPAYMENT TERM (MONTHS)      # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
0                                 1001    158,264,952.06          18.08          158,106.85        7.879       645
6                                   91      9,853,157.07           1.13          108,276.45        7.907       624
12                                  72     20,384,220.19           2.33          283,114.17        7.407       667
24                                2726    586,881,337.93          67.05          215,290.29        7.124       653
30                                   1        180,000.00           0.02          180,000.00         7.45       597
36                                 511     99,768,278.08           11.4          195,241.25        7.141       642
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
PREPAYMENT TERM (MONTHS)      % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
0                                83.47                41            2.4               20.27         7.82     41.39     39.56
6                                82.65             38.98            3.5                2.89        11.39     74.83     13.51
12                               82.52             41.68            1.2               18.25          5.8     32.35     71.57
24                               82.47             42.44           2.51               13.35          8.9      36.3     70.66
30                                  80             39.05              0                   0            0       100         0
36                               80.24             40.57           3.46                  11        18.73     59.62     42.83
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22





--------------------------------------------------------------------------------

15. MORTGAGE RATE (WAC)



                                            REMAINING       % REMAINING   WA REMAINING LOAN
MORTGAGE RATE (WAC)           # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
6.000 - 6.499                      393    112,283,082.48          12.83          285,707.59        6.327       669
6.500 - 6.999                     1312    339,614,949.65           38.8          258,852.86        6.751       662
7.000 - 7.499                      687    149,195,461.61          17.04          217,169.52        7.247       648
7.500 - 7.999                      756    147,512,943.64          16.85          195,122.94        7.727       631
8.000 - 8.499                      232     38,416,124.99           4.39          165,586.75        8.237       604
8.500 - 8.999                      244     34,865,189.69           3.98          142,890.12        8.715       599
9.000 - 9.499                      148     11,603,751.46           1.33           78,403.73        9.241       604
9.500 - 9.999                      356     25,972,478.03           2.97           72,956.40        9.798       670
10.000 - 10.499                    155      8,810,635.83           1.01           56,842.81       10.212       677
10.500 - 10.999                    119      7,057,327.96           0.81           59,305.28       10.607       681
TOTAL:                            4402    875,331,945.33            100          198,848.69        7.278       650


                                              % DTI (NON                                          REFI       FULL   INTEREST
MORTGAGE RATE (WAC)           % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
6.000 - 6.499                    80.58             43.37           0.54               14.99         8.88     50.43     84.29
6.500 - 6.999                    80.88             42.15           1.31               13.46         9.32     37.13     74.67
7.000 - 7.499                    81.66              41.7           3.17               17.21         9.36     40.29     60.88
7.500 - 7.999                    83.22             41.36           4.48                15.4        11.37     38.25     47.57
8.000 - 8.499                     84.3             41.01           2.86                7.61        10.68     49.42     34.53
8.500 - 8.999                     85.1             38.94          10.28               13.21        13.16     52.16     29.96
9.000 - 9.499                     86.9             40.67           5.73                4.78        14.02     56.59     15.55
9.500 - 9.999                    93.72             42.73           2.88               14.82         6.91     26.12      4.26
10.000 - 10.499                  95.34             41.96           0.57               15.66         7.63     17.17      0.58
10.500 - 10.999                  94.07             41.48              0               16.85         6.59     12.47         0
TOTAL:                            82.4             41.91           2.58               14.33         9.78     40.23     61.22





--------------------------------------------------------------------------------

16. MARGIN



                                            REMAINING       % REMAINING   WA REMAINING LOAN
MARGIN                        # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
2.501 - 3.000                        4        568,912.57           0.07          142,228.14          7.4       624
3.001 - 3.500                        5        697,013.10           0.09          139,402.62        7.373       663
3.501 - 4.000                      130     21,730,998.77           2.78          167,161.53        7.387       656
4.001 - 4.500                        5        956,977.46           0.12          191,395.49        7.245       646
4.501 - 5.000                        2        869,029.40           0.11          434,514.70         6.57       678
5.001 - 5.500                      754    192,941,611.12          24.71          255,890.73        7.094       631
5.501 - 6.000                     1779    443,455,483.16          56.79          249,272.33         7.06       657
6.001 - 6.500                      763    119,540,837.70          15.31          156,672.13        7.557       645
6.501 - 7.000                        1        115,855.00           0.01          115,855.00         6.85       634
TOTAL:                            3443    780,876,718.29            100          226,801.25        7.154       648


                                              % DTI (NON                                          REFI       FULL   INTEREST
MARGIN                        % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
2.501 - 3.000                     81.7             40.71              0                41.1            0       100     32.34
3.001 - 3.500                       80             45.77              0               16.39            0     29.24     21.22
3.501 - 4.000                    80.37             40.16           3.55               27.03            0     45.81     37.76
4.001 - 4.500                    80.25             43.95              0               32.46            0     28.27         0
4.501 - 5.000                    85.55             48.23              0                   0            0         0     58.68
5.001 - 5.500                    82.76             42.22           0.37                   7        11.09     53.97     49.41
5.501 - 6.000                    81.77             42.44           0.59               16.03         9.12     31.66      79.7
6.001 - 6.500                    81.31             40.34          13.87               19.11        10.99     44.45     57.42
6.501 - 7.000                       85             35.16              0                   0            0       100       100
TOTAL:                           81.91             42.01           2.65                14.6          9.6     39.54     67.44





--------------------------------------------------------------------------------

17. FICO




FICO                          LTV <=55    55 < LTV <= 60    60 < LTV <= 65   65 < LTV <= 70  70 < LTV <= 75    75 < LTV <= 80
501 - 550                         0.08               0.1              0.21             0.34             0.5              0.64
551 - 600                         0.75              0.36              0.31             0.89            0.94              6.61
601 - 650                         0.22              0.29              0.31             1.01            1.39             13.97
651 - 700                         0.17              0.07              0.17              0.2            0.39             18.07
701 - 750                         0.04              0.02              0.05             0.23            0.26              6.57
751 - 800                         0.01                 0                 0             0.08            0.02              2.02
801 >=                               0                 0                 0                0               0              0.08
TOTAL:                            1.26              0.85              1.05             2.74            3.51             47.96


FICO                    80 < LTV <= 85    85 < LTV <= 90    90 < LTV <= 95   95 < LTV <=100
501 - 550                         0.83              0.46                 0                0
551 - 600                         1.92              4.09              1.37                0
601 - 650                         4.18              5.95              1.22                0
651 - 700                         7.93              3.68              0.61              1.5
701 - 750                         3.14              1.83              0.45             1.71
751 - 800                         0.65               0.4              0.09              0.5
801 >=                               0              0.12                 0             0.01
TOTAL:                           18.64             16.53              3.75             3.71





--------------------------------------------------------------------------------

18. FICO (IO ONLY BUCKET)



                                            REMAINING       % REMAINING   WA REMAINING LOAN
FICO (IO ONLY BUCKET)         # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
541 - 560                           53     12,705,137.42           2.37          239,719.57        7.747       555
561 - 580                           76     18,634,434.19           3.48          245,189.92        7.576       570
581 - 600                           98     24,076,075.38           4.49          245,674.24        7.272       590
601 - 620                          224     56,071,980.27          10.46          250,321.34        7.052       611
621 - 640                          246     61,805,148.85          11.53          251,240.44        7.061       630
641 - 660                          276     78,047,234.22          14.56          282,779.83         6.96       651
661 - 680                          335     99,877,141.56          18.64          298,140.72         6.91       670
681 - 700                          233     72,229,732.06          13.48          309,998.85        6.837       690
701 - 750                          272     87,645,537.39          16.35          322,226.24        6.762       721
751 >=                              82     24,826,815.17           4.63          302,766.04        6.825       771
TOTAL:                            1895    535,919,236.51            100          282,806.98        6.971       662


                                              % DTI (NON                                          REFI       FULL   INTEREST
FICO (IO ONLY BUCKET)         % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
541 - 560                        78.26              43.3           1.76                7.89        20.12     65.21       100
561 - 580                        76.24             42.83           1.64               10.94        21.24     66.48       100
581 - 600                        77.89             42.33           1.46                5.25        15.89     64.77       100
601 - 620                        82.12             39.83            2.3               12.13        16.77     71.89       100
621 - 640                        82.27             41.73            2.2               12.71        13.07     52.85       100
641 - 660                        82.64             42.54           1.89               15.02        12.88     37.62       100
661 - 680                        82.14             43.64           3.19               17.87         3.69     14.87       100
681 - 700                         82.3             43.21           2.53               18.95         4.34     10.53       100
701 - 750                         82.7             43.73           3.51                21.2         4.53      8.71       100
751 >=                           81.75             43.23           1.15               19.57         2.52     13.69       100
TOTAL:                           81.83              42.7            2.5               15.98          9.2     32.11       100


Mean: 658
Median: 659
Standard Deviation: 50




--------------------------------------------------------------------------------

19. REMAINING BALANCE (IO LOANS ONLY)



REMAINING BALANCE (IO LOANS                 REMAINING       % REMAINING   WA REMAINING LOAN
ONLY)                         # LOANS        BALANCE          BALANCE          BALANCE             WAC     WA FICO
50001 - 75000                       15        983,134.47           0.18           65,542.30        7.638       642
75001 - 100000                      43      3,836,473.00           0.72           89,220.30        7.432       631
100001 - 125000                    116     13,176,655.78           2.46          113,591.86        7.167       649
125001 - 150000                    147     20,310,608.02           3.79          138,167.40        7.106       648
150001 - 200000                    320     56,154,636.90          10.48          175,483.24        7.147       649
200001 - 250000                    260     58,233,968.98          10.87          223,976.80        7.186       653
250001 - 300000                    243     65,977,205.30          12.31          271,511.13        7.033       658
300001 - 350000                    227     73,266,214.96          13.67          322,758.66        6.873       662
350001 - 400000                    176     65,819,562.43          12.28          373,974.79        6.831       665
400001 - 450000                    117     49,780,433.59           9.29          425,473.79        6.994       668
450001 - 500000                     88     41,863,127.00           7.81          475,717.35        6.816       670
500001 - 600000                     83     45,045,238.58           8.41          542,713.72        6.839       677
600001 - 700000                     39     25,029,627.50           4.67          641,785.32        6.793       672
700001 >=                           21     16,442,350.00           3.07          782,969.05        6.833       693
TOTAL:                            1895    535,919,236.51            100          282,806.98        6.971       662


REMAINING BALANCE (IO LOANS                   % DTI (NON                                          REFI       FULL   INTEREST
ONLY)                         % LTV(1)          ZERO)       NON PRIMARY        NON SF - PUD      CASHOUT     DOC      ONLY
50001 - 75000                    80.64             44.36          14.14                   0         7.53     74.11       100
75001 - 100000                    78.7             39.84           7.36               11.27         6.69     61.13       100
100001 - 125000                  81.07              40.2           4.12               15.88         5.96     63.85       100
125001 - 150000                  80.61             40.36           5.48                14.1         9.03     67.54       100
150001 - 200000                  79.53              41.4           3.93               12.77         7.91     54.22       100
200001 - 250000                  80.43             42.34           3.86               13.03         9.33     43.55       100
250001 - 300000                  81.22             43.16           2.92               15.59        11.29     34.24       100
300001 - 350000                  82.11             43.46              0               18.88         8.84     28.47       100
350001 - 400000                  81.97              43.1           2.27               14.27         6.77     29.03       100
400001 - 450000                  82.91             43.74           2.52                  16        10.03     19.51       100
450001 - 500000                  83.29             43.78           2.31               18.12         8.07     12.65       100
500001 - 600000                   83.3              44.1           1.33               16.96         7.16       7.2       100
600001 - 700000                  84.09             40.25           2.43               22.88        10.23     17.37       100
700001 >=                        83.79             41.16              0               18.67        23.89     35.94       100
TOTAL:                           81.83              42.7            2.5               15.98          9.2     32.11       100


(1) LTV refers to loan to value for first lien loans and combined loan to value
for second lien loans.




--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
              10/24/2005 11:15

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.


[PAGE]


                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  4,402 RECORDS
                              BALANCE: 875,331,945

--------------------------------------------------------------------------------

SELECTION CRITERIA: ALL RECORDS
TABLE OF CONTENTS

 1. Original Principal Balances
 2. Outstanding Principal Balances
 3. Current Mortgage Rates
 4. Original Term To Maturity
 5. Remaining Term To Maturity
 6. Lien
 7. Seasoning (Months)
 8. Combined Loan-to-Value Ratios
 9. Owner Occupancy
 10. Property Type
 11. Loan Purpose
 12. Documentation Type
 13. Product Type
 14. STATE
 15. Prepayment Penalty
 16. Prepayment Penalty Term
 17. FICO Scores
 18. Loan To Value

--------------------------------------------------------------------------------

1. ORIGINAL PRINCIPAL BALANCES



                                                                              % OF AGGREGATE
                                                                                 PRINCIPAL
                                                          AGGREGATE CURRENT    BALANCE AS OF   AVG CURRENT
ORIGINAL PRINCIPAL BALANCES             NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
0.00 - 25,000.00                                     56   $    1,199,070.83             0.14%  $  21,411.98
25,000.01 - 50,000.00                               262        9,943,213.57             1.14      37,951.20
50,000.01 - 75,000.00                               433       27,229,828.30             3.11      62,886.44
75,000.01 - 100,000.00                              427       37,691,277.96             4.31      88,269.97
100,000.01 - 125,000.00                             466       52,511,398.59                6     112,685.40
125,000.01 - 150,000.00                             408       56,079,528.29             6.41     137,449.82
150,000.01 - 175,000.00                             361       58,490,738.14             6.68     162,024.21
175,000.01 - 200,000.00                             301       56,377,650.36             6.44     187,301.16
200,000.01 - 225,000.00                             231       49,027,641.74              5.6     212,240.87
225,000.01 - 250,000.00                             184       43,778,892.89                5     237,928.77
250,000.01 - 275,000.00                             200       52,410,415.44             5.99     262,052.08
275,000.01 - 300,000.00                             135       38,790,992.36             4.43     287,340.68
300,000.01 - 333,700.00                             220       69,243,446.58             7.91     314,742.94
333,700.01 - 350,000.00                              74       25,322,228.95             2.89     342,192.28
350,000.01 - 600,000.00                             579      251,829,824.58            28.77     434,939.25
600,000.01 - 1,000,000.00                            64       44,209,066.90             5.05     690,766.67
1,000,000.01 >=                                       1        1,196,729.87             0.14   1,196,729.87
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


ORIGINAL PRINCIPAL BALANCES             WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
0.00 - 25,000.00                                9.72%   98.73%       98.73%     709
25,000.01 - 50,000.00                           9.86     95.8        96.51      702
50,000.01 - 75,000.00                           8.82    85.44        93.27      648
75,000.01 - 100,000.00                         8.235     84.3        93.23      635
100,000.01 - 125,000.00                        7.736    83.12        93.82      637
125,000.01 - 150,000.00                        7.481    81.96         92.9      632
150,000.01 - 175,000.00                        7.333    81.03        91.82      633
175,000.01 - 200,000.00                        7.273    79.82        90.98      636
200,000.01 - 225,000.00                        7.256    81.38        91.82      642
225,000.01 - 250,000.00                        7.289    80.55        91.04      641
250,000.01 - 275,000.00                        7.115    81.35        91.86      650
275,000.01 - 300,000.00                        7.223    81.58        90.55      643
300,000.01 - 333,700.00                        6.966    82.93        92.89      654
333,700.01 - 350,000.00                         6.94    80.52        90.13      653
350,000.01 - 600,000.00                        6.947    82.71         92.5      662
600,000.01 - 1,000,000.00                      6.848     84.2        94.22      682
1,000,000.01 >=                                  6.5    62.34           70      648
TOTAL:                                          7.28%   82.40%       92.35%     650


[PAGE]


--------------------------------------------------------------------------------

2. OUTSTANDING PRINCIPAL BALANCES



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
OUTSTANDING PRINCIPAL BALANCES          NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
0.00 - 25,000.00                                     58   $    1,249,051.86             0.14%  $  21,535.38
25,000.01 - 50,000.00                               260        9,893,232.54             1.13      38,050.89
50,000.01 - 75,000.00                               434       27,302,269.25             3.12      62,908.45
75,000.01 - 100,000.00                              427       37,718,667.51             4.31      88,334.12
100,000.01 - 125,000.00                             466       52,536,514.41                6     112,739.30
125,000.01 - 150,000.00                             407       55,954,581.97             6.39     137,480.55
150,000.01 - 175,000.00                             362       58,665,629.64              6.7     162,059.75
175,000.01 - 200,000.00                             301       56,402,549.94             6.44     187,383.89
200,000.01 - 225,000.00                             230       48,827,850.65             5.58     212,295.00
225,000.01 - 250,000.00                             184       43,778,892.89                5     237,928.77
250,000.01 - 275,000.00                             200       52,410,415.44             5.99     262,052.08
275,000.01 - 300,000.00                             136       39,090,768.46             4.47     287,432.12
300,000.01 - 333,700.00                             219       68,943,670.47             7.88     314,811.28
333,700.01 - 350,000.00                              74       25,322,228.95             2.89     342,192.28
350,000.01 - 600,000.00                             579      251,829,824.58            28.77     434,939.25
600,000.01 - 1,000,000.00                            64       44,209,066.90             5.05     690,766.67
1,000,000.01 >=                                       1        1,196,729.87             0.14   1,196,729.87
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


OUTSTANDING PRINCIPAL BALANCES          WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
0.00 - 25,000.00                             9.74%      98.78%       98.78%      709
25,000.01 - 50,000.00                       9.858       95.78        96.49       703
50,000.01 - 75,000.00                       8.824       85.48        93.29       648
75,000.01 - 100,000.00                      8.232       84.28        93.23       634
100,000.01 - 125,000.00                     7.736       83.13        93.79       636
125,000.01 - 150,000.00                     7.479       81.94         92.9       632
150,000.01 - 175,000.00                     7.331       81.03        91.84       633
175,000.01 - 200,000.00                     7.275       79.82        90.98       636
200,000.01 - 225,000.00                     7.255       81.39        91.78       642
225,000.01 - 250,000.00                     7.289       80.55        91.04       641
250,000.01 - 275,000.00                     7.115       81.35        91.86       650
275,000.01 - 300,000.00                     7.217        81.6        90.62       643
300,000.01 - 333,700.00                     6.968       82.92        92.86       654
333,700.01 - 350,000.00                      6.94       80.52        90.13       653
350,000.01 - 600,000.00                     6.947       82.71         92.5       662
600,000.01 - 1,000,000.00                   6.848        84.2        94.22       682
1,000,000.01 >=                               6.5       62.34           70       648
TOTAL:                                       7.28%      82.40%       92.35%      650


[PAGE]


--------------------------------------------------------------------------------

3. CURRENT MORTGAGE RATES



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
CURRENT MORTGAGE RATES                  NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
6.000 - 6.499                                       393   $  112,283,082.48            12.83%  $ 285,707.59
6.500 - 6.999                                     1,312      339,614,949.65             38.8     258,852.86
7.000 - 7.499                                       687      149,195,461.61            17.04     217,169.52
7.500 - 7.999                                       756      147,512,943.64            16.85     195,122.94
8.000 - 8.499                                       232       38,416,124.99             4.39     165,586.75
8.500 - 8.999                                       244       34,865,189.69             3.98     142,890.12
9.000 - 9.499                                       148       11,603,751.46             1.33      78,403.73
9.500 - 9.999                                       356       25,972,478.03             2.97      72,956.40
10.000 - 10.499                                     155        8,810,635.83             1.01      56,842.81
10.500 - 10.999                                     119        7,057,327.96             0.81      59,305.28
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


CURRENT MORTGAGE RATES                  WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
6.000 - 6.499                                   6.33%   80.58%       94.54%      669
6.500 - 6.999                                  6.751    80.88        93.63       662
7.000 - 7.499                                  7.247    81.66        92.07       648
7.500 - 7.999                                  7.727    83.22        89.92       631
8.000 - 8.499                                  8.237     84.3        88.64       604
8.500 - 8.999                                  8.715     85.1        87.11       599
9.000 - 9.499                                  9.241     86.9         88.8       604
9.500 - 9.999                                  9.798    93.72        94.13       670
10.000 - 10.499                               10.212    95.34         95.7       677
10.500 - 10.999                               10.607    94.07        94.43       681
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


--------------------------------------------------------------------------------

4. ORIGINAL TERM TO MATURITY



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
ORIGINAL TERM TO MATURITY               NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
1 - 180                                             601   $   34,964,426.05             3.99%  $  58,177.08
181 - 240                                             7          896,963.24              0.1     128,137.61
241 - 360                                         3,794      839,470,556.05             95.9     221,262.67
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


ORIGINAL TERM TO MATURITY               WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
181 - 240                                       9.94%   99.04%       99.32%      712
241 - 360                                       7.81    65.38        65.38       630
TOTAL:                                         7.167    81.72        92.09       648
                                                7.28%   82.40%       92.35%      650


[PAGE]


--------------------------------------------------------------------------------

5. REMAINING TERM TO MATURITY



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
REMAINING TERM TO MATURITY              NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
121 - 180                                           601   $   34,964,426.05             3.99%  $  58,177.08
181 - 240                                             7          896,963.24              0.1     128,137.61
301 - 360                                         3,794      839,470,556.05             95.9     221,262.67
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


REMAINING TERM TO MATURITY              WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
121 - 180                                       9.94%   99.04%       99.32%      712
181 - 240                                       7.81    65.38        65.38       630
301 - 360                                      7.167    81.72        92.09       648
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


--------------------------------------------------------------------------------

6. LIEN



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
LIEN                                    NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
1                                                 3,810   $  841,387,685.73            96.12%  $ 220,836.66
2                                                   592       33,944,259.60             3.88      57,338.28
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


REMAINING TERM TO MATURITY              WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
1                                               7.17%   81.70%       92.06%      647
2                                              9.996    99.64        99.64       715
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


--------------------------------------------------------------------------------

7. SEASONING (MONTHS)



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
SEASONING (MONTHS)                      NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
0                                                   254   $   47,262,977.00             5.40%  $ 186,074.71
1                                                 1,980      397,027,734.90            45.36     200,519.06
2                                                 1,627      308,349,839.92            35.23     189,520.49
3                                                   523      118,087,634.65            13.49     225,788.98
4                                                    17        4,542,933.47             0.52     267,231.38
5                                                     1           60,825.39             0.01      60,825.39
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


SEASONING (MONTHS)                      WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
0                                               7.43%   82.38%       92.02%      663
1                                              7.275    82.47        92.79       653
2                                              7.347     82.3        91.63       645
3                                              7.066    82.54        92.97       648
4                                              6.834     80.3           91       635
5                                               8.85    72.62        72.62       553
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


--------------------------------------------------------------------------------

8. COMBINED LOAN-TO-VALUE RATIOS



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
COMBINED LOAN-TO-VALUE RATIOS           NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
0.01 - 25.00                                          4   $      234,860.49             0.03%  $  58,715.12
30.01 - 35.00                                         9        1,237,544.27             0.14     137,504.92
35.01 - 40.00                                         3          358,888.15             0.04     119,629.38
40.01 - 45.00                                        10        1,832,988.66             0.21     183,298.87
45.01 - 50.00                                        19        3,172,162.76             0.36     166,955.93
50.01 - 55.00                                        23        4,168,890.03             0.48     181,256.09
55.01 - 60.00                                        40        7,247,568.06             0.83     181,189.20
60.01 - 65.00                                        39        7,868,903.75              0.9     201,766.76
65.01 - 70.00                                       107       24,484,395.12              2.8     228,826.12
70.01 - 75.00                                       127       25,547,608.49             2.92     201,162.27
75.01 - 80.00                                       354       81,245,493.95             9.28     229,507.05
80.01 - 85.00                                       230       51,641,392.37              5.9     224,527.79
85.01 - 90.00                                       522      123,012,585.71            14.05     235,656.29
90.01 - 95.00                                       282       59,341,886.31             6.78     210,432.22
95.01 - 100.00                                    2,633      483,936,777.22            55.29     183,796.73
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


COMBINED LOAN-TO-VALUE RATIOS           WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
0.01 - 25.00                                    8.99%   18.04%       18.04%      587
30.01 - 35.00                                  7.235    32.32        32.32       619
35.01 - 40.00                                  7.393    38.59        38.59       614
40.01 - 45.00                                  7.205    43.11        43.11       606
45.01 - 50.00                                   7.25    47.87        47.87       594
50.01 - 55.00                                  6.978    52.86        53.08       604
55.01 - 60.00                                  7.276    58.06        58.06       598
60.01 - 65.00                                  7.475    62.88        62.88       602
65.01 - 70.00                                  7.345    68.59        68.96       615
70.01 - 75.00                                  7.559    73.68        73.73       601
75.01 - 80.00                                  7.378    79.44        79.49       622
80.01 - 85.00                                  7.446    84.47        84.56       618
85.01 - 90.00                                  7.517    88.95        89.69       631
90.01 - 95.00                                  7.609    88.99        94.67       646
95.01 - 100.00                                 7.123    82.86        99.94       671
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


--------------------------------------------------------------------------------

9. OWNER OCCUPANCY



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
OWNER OCCUPANCY                         NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
Primary Home                                      4,280   $  852,772,358.52            97.42%  $ 199,245.88
Investment Property                                 122       22,559,586.82             2.58     184,914.65
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


OWNER OCCUPANCY                         WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
Primary Home                                    7.27%   82.56%       92.77%      650
Investment Property                            7.725    76.33        76.65       663
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


--------------------------------------------------------------------------------

10. PROPERTY TYPE



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
PROPERTY TYPE                           NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
Single Family Detached                            3,059   $  592,873,455.08            67.73%  $ 193,812.83
Planned Unit Development                            718      149,678,982.75             17.1     208,466.55
Two-to-Four Family                                  228       63,479,664.08             7.25     278,419.58
Condominium                                         344       61,538,368.64             7.03     178,890.61
Single Family Attached                               36        4,935,124.04             0.56     137,086.78
Townhouse                                            16        2,421,350.74             0.28     151,334.42
Manufactured Home                                     1          405,000.00             0.05     405,000.00
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


PROPERTY TYPE                           WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
Single Family Detached                          7.29%   82.42%       92.27%      648
Planned Unit Development                       7.239    82.21        92.45       645
Two-to-Four Family                             7.306     82.2        90.43       676
Condominium                                    7.239    82.79         95.1       660
Single Family Attached                          7.45    82.18        93.06       650
Townhouse                                      7.399    86.16        90.57       616
Manufactured Home                              6.675    69.83        69.83       637
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


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11. LOAN PURPOSE



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
LOAN PURPOSE                            NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
Purchase                                          2,819   $  526,831,575.00            60.19%  $ 186,885.98
Refinance - Rate/Term                             1,210      262,886,312.91            30.03     217,261.42
Refinance - Cashout                                 373       85,614,057.42             9.78     229,528.30
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


LOAN PURPOSE                            WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
Purchase                                        7.23%   83.31%       97.14%      666
Refinance - Rate/Term                          7.359     81.1        85.41       627
Refinance - Cashout                            7.311    80.81         84.2       624
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


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12. DOCUMENTATION TYPE



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
DOCUMENTATION TYPE                      NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
Full Documentation                                2,089   $  352,187,174.19            40.23%  $ 168,591.28
Stated Income Wage Earner                         1,359      282,374,251.62            32.26     207,780.91
Stated Income Self-Employed                         668      168,594,954.14            19.26     252,387.66
12 Month Bank Statements                            203       49,885,870.43              5.7     245,743.20
24 Month Bank Statements                             66       18,378,201.00              2.1     278,457.59
Limited Documentation                                17        3,911,493.95             0.45     230,087.88
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


DOCUMENTATION TYPE                      WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
Full Documentation                              7.23%   81.82%       90.46%      616
Stated Income Wage Earner                      7.361    83.11        94.44       685
Stated Income Self-Employed                    7.247    82.41        93.25       674
12 Month Bank Statements                       7.255    82.51        91.54       623
24 Month Bank Statements                       7.255    82.74        90.02       618
Limited Documentation                          7.254    80.47        94.82       653
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


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13. PRODUCT TYPE



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
PRODUCT TYPE                            NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
2/28 LIBOR ARM                                    1,353   $  216,229,600.33            24.70%  $ 159,814.93
2/28 LIBOR IO ARM                                 1,608      457,723,019.78            52.29     284,653.62
30/15 BALLOON                                       590       33,903,489.21             3.87      57,463.54
3/27 LIBOR ARM                                      224       35,600,038.67             4.07     158,928.74
3/27 LIBOR IO ARM                                   219       59,447,365.59             6.79     271,449.16
5/1 TREASURY ARM                                      8        2,461,854.46             0.28     307,731.81
5/1 TREASURY IO ARM                                  31        9,414,839.46             1.08     303,704.50
Fixed                                               332       51,217,726.16             5.85     154,270.26
Fixed IO                                             37        9,334,011.68             1.07     252,270.59
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


PRODUCT TYPE                            WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
2/28 LIBOR ARM                                  7.54%   81.98%       90.64%      620
2/28 LIBOR IO ARM                              6.963    82.01        93.96       663
30/15 BALLOON                                   9.99     99.6        99.64       715
3/27 LIBOR ARM                                  7.56    82.95        90.25       617
3/27 LIBOR IO ARM                              7.022    80.88        89.92       657
5/1 TREASURY ARM                               6.684    70.46         76.1       652
5/1 TREASURY IO ARM                            6.998    80.94        86.66       663
Fixed                                           7.43    78.92        87.23       632
Fixed IO                                       7.015    80.22        88.37       651
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


--------------------------------------------------------------------------------

14. STATE



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
STATE                                   NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
California                                        1,168   $  352,965,791.76            40.32%  $ 302,196.74
Illinois                                            396       70,626,060.82             8.07     178,348.64
Florida                                             356       64,740,916.39              7.4     181,856.51
Texas                                               337       35,300,200.30             4.03     104,748.37
Arizona                                             312       59,721,550.45             6.82     191,415.23
Washington                                          294       52,919,979.32             6.05     179,999.93
Colorado                                            176       26,890,143.41             3.07     152,784.91
Missouri                                            158       17,960,702.98             2.05     113,675.34
Georgia                                             122       16,463,382.76             1.88     134,945.76
Massachusetts                                       100       24,258,316.77             2.77     242,583.17
Kansas                                               95       10,070,361.44             1.15     106,003.80
Maryland                                             89       21,263,307.20             2.43     238,913.56
Iowa                                                 82        7,779,731.23             0.89      94,874.77
Virginia                                             82       19,501,763.33             2.23     237,826.38
Michigan                                             75       10,481,578.88              1.2     139,754.39
Nevada                                               69       12,908,651.20             1.47     187,081.90
Oregon                                               64       10,850,796.53             1.24     169,543.70
Minnesota                                            61        9,876,042.32             1.13     161,902.33
Tennessee                                            38        3,928,687.32             0.45     103,386.51
Utah                                                 35        4,648,423.76             0.53     132,812.11
Idaho                                                30        4,164,168.80             0.48     138,805.63
Indiana                                              28        2,528,559.72             0.29      90,305.70
New Jersey                                           28        6,443,533.75             0.74     230,126.21
Nebraska                                             25        2,194,950.31             0.25      87,798.01
New Hampshire                                        22        4,158,281.90             0.48     189,012.81
Pennsylvania                                         20        3,066,035.35             0.35     153,301.77
Rhode Island                                         19        3,573,456.83             0.41     188,076.68
Oklahoma                                             17        2,059,211.04             0.24     121,130.06
Wisconsin                                            17        2,004,893.48             0.23     117,934.91
Arkansas                                             11        1,126,427.17             0.13     102,402.47
North Carolina                                       11        1,340,139.04             0.15     121,830.82
Kentucky                                             10          960,461.60             0.11      96,046.16
Maine                                                 9        1,263,456.50             0.14     140,384.06
New Mexico                                            9        1,825,240.26             0.21     202,804.47
South Carolina                                        7          987,747.14             0.11     141,106.73
Delaware                                              5          825,252.97             0.09     165,050.59
Connecticut                                           4          726,457.84             0.08     181,614.46
Mississippi                                           4          483,431.34             0.06     120,857.83
West Virginia                                         4          799,113.44             0.09     199,778.36
Louisiana                                             3          222,726.59             0.03      74,242.20
Ohio                                                  3          459,776.57             0.05     153,258.86
Vermont                                               3          550,381.47             0.06     183,460.49
Wyoming                                               2          234,373.97             0.03     117,186.99
North Dakota                                          1           66,462.91             0.01      66,462.91
South Dakota                                          1          111,017.17             0.01     111,017.17
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


STATE                                   WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
California                                      6.97%   82.29%       92.55%      668
Illinois                                       7.739    83.01        92.77       650
Florida                                        7.404    82.12        90.95       641
Texas                                          7.444    80.59        95.57       635
Arizona                                        7.326    81.85        90.11       636
Washington                                     7.249    82.36        92.01       640
Colorado                                       7.207    82.15        95.43       650
Missouri                                       8.002    84.24        93.61       612
Georgia                                        7.349    83.05        94.58       629
Massachusetts                                  7.599    82.24        89.13       637
Kansas                                         7.959    83.02        94.01       625
Maryland                                       7.549    81.84        90.17       643
Iowa                                           8.358    84.55        92.21       614
Virginia                                       7.351    83.13         92.5       652
Michigan                                       7.782     84.9        93.35       631
Nevada                                         7.135    81.18        89.64       635
Oregon                                         7.063    82.11        93.42       637
Minnesota                                      7.099     82.6        96.11       653
Tennessee                                      8.189    86.17        95.26       613
Utah                                           7.618    85.87        94.03       639
Idaho                                          7.211    80.89        92.47       615
Indiana                                        8.199     82.5        94.86       622
New Jersey                                     7.889    83.22        87.37       639
Nebraska                                       7.785     81.7        92.43       631
New Hampshire                                  7.388    84.32        91.98       625
Pennsylvania                                   7.452    82.21        89.71       621
Rhode Island                                   6.958    81.07        91.26       659
Oklahoma                                        7.59     80.8        94.48       604
Wisconsin                                        7.8    83.69        93.84       609
Arkansas                                       8.255    84.44        94.28       604
North Carolina                                  7.37    81.96        93.68       623
Kentucky                                       8.187     84.1        96.06       592
Maine                                          7.982    81.28        87.69       612
New Mexico                                     7.544    82.86        90.17       611
South Carolina                                 7.175    80.99        87.49       620
Delaware                                       7.941    86.49        89.73       570
Connecticut                                    7.704    84.66        94.07       608
Mississippi                                    7.436    86.54        94.86       624
West Virginia                                  8.064     88.7         88.7       617
Louisiana                                      7.882    83.19        97.44       615
Ohio                                           7.929     81.3         81.3       648
Vermont                                        8.628    85.06        85.06       639
Wyoming                                        6.693    79.09        92.58       636
North Dakota                                     8.9       95           95       614
South Dakota                                       7       80          100       586
TOTAL:                                          7.28%   82.40%       92.35%      650


--------------------------------------------------------------------------------

[PAGE]


15. PREPAYMENT PENALTY



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
PREPAYMENT PENALTY                      NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
No                                                 1001      158,264,952.06            18.08%    158,106.85
Yes                                                3401      717,066,993.27            81.92     210,840.05
TOTAL:                                             4402      875,331,945.33           100.00%    198,848.69


PREPAYMENT PENALTY                      WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
No                                              7.88%   83.47%       91.59%      645
Yes                                            7.146    82.16        92.52       651
TOTAL:                                          7.28%   82.40%       92.35%      650


--------------------------------------------------------------------------------

[PAGE]


16. PREPAYMENT PENALTY TERM



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
PREPAYMENT PENALTY TERM                 NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
0                                                 1,001   $  158,264,952.06            18.08%  $ 158,106.85
6                                                    91        9,853,157.07             1.13     108,276.45
12                                                   72       20,384,220.19             2.33     283,114.17
24                                                2,726      586,881,337.93            67.05     215,290.29
30                                                    1          180,000.00             0.02     180,000.00
36                                                  511       99,768,278.08             11.4     195,241.25
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


PREPAYMENT PENALTY TERM                 WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
0                                               7.88%   83.47%       91.59%      645
6                                              7.907    82.65        93.89       624
12                                             7.407    82.52        94.38       667
24                                             7.124    82.47        93.16       653
30                                              7.45       80          100       597
36                                             7.141    80.24        88.23       642
TOTAL:                                          7.28%   82.40%       92.35%      650


[PAGE]


--------------------------------------------------------------------------------

17. FICO SCORES



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
FICO SCORES                             NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
500 - 519                                            15   $    1,907,974.43             0.22%  $ 127,198.30
520 - 539                                            70       10,874,574.10             1.24     155,351.06
540 - 559                                           209       36,610,912.03             4.18     175,171.83
560 - 579                                           260       46,671,160.98             5.33     179,504.47
580 - 599                                           451       76,644,185.36             8.76     169,942.76
600 - 619                                           506       99,804,423.19             11.4     197,241.94
620 - 639                                           468       92,421,107.23            10.56     197,481.00
640 - 659                                           463      107,882,633.81            12.32     233,007.85
660 - 679                                           511      134,914,854.16            15.41     264,021.24
680 - 699                                           569      102,406,255.01             11.7     179,975.84
700 - 719                                           369       68,570,599.37             7.83     185,828.18
720 - 739                                           249       45,916,953.77             5.25     184,405.44
740 - 759                                           137       27,588,653.24             3.15     201,377.03
760 - 779                                            73       13,796,861.01             1.58     188,998.10
780 - 799                                            47        7,490,205.74             0.86     159,366.08
800 - 819                                             5        1,830,591.90             0.21     366,118.38
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


PREPAYMENT PENALTY TERM                 WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
500 - 519                                       9.82%   69.05%       69.05%       508
520 - 539                                      8.754    77.34        78.37        529
540 - 559                                       8.05    80.23        81.37        551
560 - 579                                      7.875    81.59        82.33        569
580 - 599                                      7.343    80.03        88.67        589
600 - 619                                      7.201    82.25        90.65        609
620 - 639                                      7.158    81.91        90.99        629
640 - 659                                      7.049    81.83        92.62        649
660 - 679                                      6.995    82.01        96.09        669
680 - 699                                      7.326    84.21        96.14        689
700 - 719                                      7.262    84.77        96.49        708
720 - 739                                      7.218    84.79        97.45        729
740 - 759                                      7.255     84.2         95.9        749
760 - 779                                      7.253    84.39        96.24        769
780 - 799                                      7.367    84.05        98.53        788
800 - 819                                      6.747    86.28        97.48        805
TOTAL:                                          7.28%   82.40%       92.35%       650


[PAGE]


--------------------------------------------------------------------------------

18. LOAN TO VALUE



                                                                              % OF AGGREGATE
                                                                                PRINCIPAL
                                                          AGGREGATE CURRENT   BALANCE AS OF    AVG CURRENT
LOAN TO VALUE                           NUMBER OF LOANS   PRINCIPAL BALANCE    CUT-OFF DATE      BALANCE
0.01 - 25.00                                          4   $      234,860.49             0.03%  $  58,715.12
30.01 - 35.00                                         9        1,237,544.27             0.14     137,504.92
35.01 - 40.00                                         3          358,888.15             0.04     119,629.38
40.01 - 45.00                                        11        1,919,893.07             0.22     174,535.73
45.01 - 50.00                                        19        3,172,162.76             0.36     166,955.93
50.01 - 55.00                                        22        4,081,985.63             0.47     185,544.80
55.01 - 60.00                                        42        7,420,580.73             0.85     176,680.49
60.01 - 65.00                                        41        9,169,038.61             1.05     223,635.09
65.01 - 70.00                                       115       24,021,461.98             2.74     208,882.28
70.01 - 75.00                                       197       30,686,609.66             3.51     155,769.59
75.01 - 80.00                                     1,990      419,828,529.89            47.96     210,969.11
80.01 - 85.00                                       580      163,173,535.96            18.64     281,333.68
85.01 - 90.00                                       622      144,721,680.73            16.53     232,671.51
90.01 - 95.00                                       186       32,795,447.03             3.75     176,319.61
95.01 - 100.00                                      561       32,509,726.36             3.71      57,949.60
TOTAL:                                            4,402   $  875,331,945.33           100.00%  $ 198,848.69


LOAN TO VALUE                           WA GROSS CPN   WA LTV   WA COMBLTV   WA FICO
0.01 - 25.00                                    8.99%   18.04%       18.04%       587
30.01 - 35.00                                  7.235    32.32        32.32        619
35.01 - 40.00                                  7.393    38.59        38.59        614
40.01 - 45.00                                  7.285    43.08        43.55        603
45.01 - 50.00                                   7.25    47.87        47.87        594
50.01 - 55.00                                  6.935    53.09        53.09        606
55.01 - 60.00                                  7.292    58.09        58.76        598
60.01 - 65.00                                  7.345     62.8        63.94        609
65.01 - 70.00                                  7.426    68.93        69.57        613
70.01 - 75.00                                  7.539    73.79        77.85        608
75.01 - 80.00                                  6.986    79.84        95.59        656
80.01 - 85.00                                  7.071    84.75        94.77        659
85.01 - 90.00                                  7.501    89.72        91.84        636
90.01 - 95.00                                   8.04    94.75        94.79        630
95.01 - 100.00                                 9.991    99.98        99.98        715
TOTAL:                                          7.28%   82.40%       92.35%       650


--------------------------------------------------------------------------------

[PAGE]


--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com

                       10/21/2005 20:54

--------------------------------------------------------------------------------

Disclaimer: This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.





                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  3,443 RECORDS
                              BALANCE: 780,876,718

--------------------------------------------------------------------------------

SELECTION CRITERIA: ARM LOANS
TABLE OF CONTENTS

1. Original Principal Balances
2. Outstanding Principal Balances
3. Current Mortgage Rates
4. Original Term To Maturity
5. Remaining Term To Maturity
6. Lien
7. Seasoning (Months)
8. Combined Loan-to-Value Ratios
9. Owner Occupancy
10. Property Type
11. Loan Purpose
12. Documentation Type
13. Product Type
14. STATE
15. Prepayment Penalty
16. Prepayment Penalty Term
17. FICO Scores
18. Loan To Value

--------------------------------------------------------------------------------

1. ORIGINAL PRINCIPAL BALANCES



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
ORIGINAL PRINCIPAL BALANCES       OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
25,000.01 - 50,000.00                   13   $      648,214.78                 0.08%       $    49,862.68
50,000.01 - 75,000.00                  222       14,112,145.36                 1.81             63,568.22
75,000.01 - 100,000.00                 300       26,516,581.22                  3.4             88,388.60
100,000.01 - 125,000.00                352       39,694,647.86                 5.08            112,768.89
125,000.01 - 150,000.00                355       48,801,402.10                 6.25            137,468.74
150,000.01 - 175,000.00                323       52,347,486.00                  6.7            162,066.52
175,000.01 - 200,000.00                283       53,032,908.73                 6.79            187,395.44
200,000.01 - 225,000.00                214       45,424,634.12                 5.82            212,264.65
225,000.01 - 250,000.00                173       41,131,954.45                 5.27            237,756.96
250,000.01 - 275,000.00                193       50,578,861.49                 6.48            262,066.64
275,000.01 - 300,000.00                125       35,894,644.30                  4.6            287,157.15
300,000.01 - 333,700.00                202       63,541,553.46                 8.14            314,562.15
333,700.01 - 350,000.00                 69       23,590,866.41                 3.02            341,896.61
350,000.01 - 600,000.00                556      241,632,521.22                30.94            434,590.87
600,000.01 - 1,000,000.00               62       42,731,566.90                 5.47            689,218.82
1,000,000.01 >=                          1        1,196,729.87                 0.15          1,196,729.87
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


ORIGINAL PRINCIPAL BALANCES      WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
25,000.01 - 50,000.00                    8.56%    63.77%        70.30%       591
50,000.01 - 75,000.00                   8.172     79.58         91.77        612
75,000.01 - 100,000.00                   7.79     81.21         92.56        613
100,000.01 - 125,000.00                 7.493     81.46         93.42        627
125,000.01 - 150,000.00                 7.379      81.6         93.02        630
150,000.01 - 175,000.00                  7.31     80.86         91.84        632
175,000.01 - 200,000.00                 7.246     79.98         91.46        638
200,000.01 - 225,000.00                  7.25     81.63         92.48        642
225,000.01 - 250,000.00                 7.294     80.97         92.02        642
250,000.01 - 275,000.00                 7.112     81.36         91.83        650
275,000.01 - 300,000.00                 7.211     81.73         91.26        642
300,000.01 - 333,700.00                 6.974     82.98            93        655
333,700.01 - 350,000.00                 6.962     80.88         90.92        654
350,000.01 - 600,000.00                 6.947      82.8         92.67        662
600,000.01 - 1,000,000.00               6.851     84.27         94.42        684
1,000,000.01 >=                           6.5     62.34            70        648
TOTAL:                                   7.15%    81.91%        92.42%       648





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2. OUTSTANDING PRINCIPAL BALANCES



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
OUTSTANDING PRINCIPAL BALANCES    OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
25,000.01 - 50,000.00                   13   $      648,214.78                 0.08%       $    49,862.68
50,000.01 - 75,000.00                  222       14,112,145.36                 1.81             63,568.22
75,000.01 - 100,000.00                 301       26,616,411.73                 3.41             88,426.62
100,000.01 - 125,000.00                352       39,719,763.68                 5.09            112,840.24
125,000.01 - 150,000.00                354       48,676,455.78                 6.23            137,504.11
150,000.01 - 175,000.00                323       52,347,486.00                  6.7            162,066.52
175,000.01 - 200,000.00                284       53,232,699.82                 6.82            187,439.08
200,000.01 - 225,000.00                213       45,224,843.03                 5.79            212,323.21
225,000.01 - 250,000.00                173       41,131,954.45                 5.27            237,756.96
250,000.01 - 275,000.00                193       50,578,861.49                 6.48            262,066.64
275,000.01 - 300,000.00                126       36,194,420.41                 4.64            287,257.30
300,000.01 - 333,700.00                201       63,241,777.35                  8.1            314,635.71
333,700.01 - 350,000.00                 69       23,590,866.41                 3.02            341,896.61
350,000.01 - 600,000.00                556      241,632,521.22                30.94            434,590.87
600,000.01 - 1,000,000.00               62       42,731,566.90                 5.47            689,218.82
1,000,000.01 >=                          1        1,196,729.87                 0.15          1,196,729.87
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


OUTSTANDING PRINCIPAL BALANCES   WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
25,000.01 - 50,000.00                    8.56%    63.77%        70.30%       591
50,000.01 - 75,000.00                   8.172     79.58         91.77        612
75,000.01 - 100,000.00                  7.793     81.24         92.59        613
100,000.01 - 125,000.00                 7.493     81.47         93.39        627
125,000.01 - 150,000.00                 7.376     81.58         93.03        630
150,000.01 - 175,000.00                  7.31     80.86         91.84        632
175,000.01 - 200,000.00                 7.247     79.98         91.49        638
200,000.01 - 225,000.00                 7.249     81.64         92.44        643
225,000.01 - 250,000.00                 7.294     80.97         92.02        642
250,000.01 - 275,000.00                 7.112     81.36         91.83        650
275,000.01 - 300,000.00                 7.205     81.76         91.33        642
300,000.01 - 333,700.00                 6.977     82.97         92.96        655
333,700.01 - 350,000.00                 6.962     80.88         90.92        654
350,000.01 - 600,000.00                 6.947      82.8         92.67        662
600,000.01 - 1,000,000.00               6.851     84.27         94.42        684
1,000,000.01 >=                           6.5     62.34            70        648
TOTAL:                                   7.15%    81.91%        92.42%       648





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3. CURRENT MORTGAGE RATES



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
CURRENT MORTGAGE RATES            OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
6.000 - 6.499                          378   $  107,911,986.08                13.82%       $   285,481.44
6.500 - 6.999                        1,220      318,177,857.26                40.75            260,801.52
7.000 - 7.499                          615      137,250,025.42                17.58            223,170.77
7.500 - 7.999                          667      135,706,118.10                17.38            203,457.45
8.000 - 8.499                          192       33,111,540.30                 4.24            172,455.94
8.500 - 8.999                          206       30,925,898.18                 3.96            150,125.72
9.000 - 9.499                           75        8,327,473.49                 1.07            111,032.98
9.500 - 9.999                           57        6,559,103.23                 0.84            115,071.99
10.000 - 10.499                         21        1,636,182.55                 0.21             77,913.45
10.500 - 10.999                         12        1,270,533.69                 0.16            105,877.81
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


CURRENT MORTGAGE RATES           WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
6.000 - 6.499                            6.33%    80.77%        94.91%       669
6.500 - 6.999                           6.751     81.01         94.11        663
7.000 - 7.499                           7.245     81.84          92.2        649
7.500 - 7.999                           7.727     83.58         90.05        631
8.000 - 8.499                           8.231     84.56         88.12        601
8.500 - 8.999                           8.711     85.77         87.79        596
9.000 - 9.499                           9.238     84.14          86.6        571
9.500 - 9.999                           9.709      79.4         80.94        557
10.000 - 10.499                        10.239     75.65         77.59        538
10.500 - 10.999                        10.528     73.05         75.05        545
TOTAL:                                   7.15%    81.91%        92.42%       648





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4. ORIGINAL TERM TO MATURITY



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
ORIGINAL TERM TO MATURITY         OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
241 - 360                            3,443   $  780,876,718.29               100.00%       $   226,801.25
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


ORIGINAL TERM TO MATURITY        WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
241 - 360                                7.15%    81.91%        92.42%       648
TOTAL:                                   7.15%    81.91%        92.42%       648





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5. REMAINING TERM TO MATURITY



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
REMAINING TERM TO MATURITY        OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
301 - 360                            3,443   $  780,876,718.29               100.00%       $   226,801.25
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


REMAINING TERM TO MATURITY       WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
301 - 360                                7.15%    81.91%        92.42%       648
TOTAL:                                   7.15%    81.91%        92.42%       648





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6. LIEN



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
LIEN                              OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
1                                    3,443   $  780,876,718.29               100.00%       $   226,801.25
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


LIEN                             WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
1                                        7.15%    81.91%        92.42%       648
TOTAL:                                   7.15%    81.91%        92.42%       648





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7. SEASONING (MONTHS)



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
SEASONING (MONTHS)                OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
0                                      185   $   40,766,127.00                 5.22%       $   220,357.44
1                                    1,544      356,198,940.59                45.62            230,698.80
2                                    1,283      271,869,939.88                34.82            211,901.75
3                                      417      108,276,873.89                13.87            259,656.77
4                                       13        3,704,011.53                 0.47            284,923.96
5                                        1           60,825.39                 0.01             60,825.39
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


SEASONING (MONTHS)               WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
0                                        7.23%    81.84%        92.57%       660
1                                       7.146     81.89         92.81        651
2                                       7.245     81.89         91.64        644
3                                       6.933     82.07         93.04        646
4                                        6.77     80.81         93.09        630
5                                        8.85     72.62         72.62        553
TOTAL:                                   7.15%    81.91%        92.42%       648





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8. COMBINED LOAN-TO-VALUE RATIOS



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
COMBINED LOAN-TO-VALUE RATIOS     OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
0.01 - 25.00                             2   $      109,912.53                 0.01%       $    54,956.27
30.01 - 35.00                            7        1,087,572.15                 0.14            155,367.45
35.01 - 40.00                            3          358,888.15                 0.05            119,629.38
40.01 - 45.00                            7        1,417,848.19                 0.18            202,549.74
45.01 - 50.00                           12        2,461,257.38                 0.32            205,104.78
50.01 - 55.00                           18        3,660,779.55                 0.47            203,376.64
55.01 - 60.00                           31        5,545,099.23                 0.71            178,874.17
60.01 - 65.00                           34        7,173,561.56                 0.92            210,987.10
65.01 - 70.00                           92       21,398,869.40                 2.74            232,596.41
70.01 - 75.00                          104       22,313,034.66                 2.86            214,548.41
75.01 - 80.00                          302       71,569,939.15                 9.17            236,986.55
80.01 - 85.00                          204       46,909,515.56                 6.01            229,948.61
85.01 - 90.00                          476      114,290,593.60                14.64            240,106.29
90.01 - 95.00                          239       55,461,414.47                  7.1            232,056.13
95.01 - 100.00                       1,912      427,118,432.70                 54.7            223,388.30
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


COMBINED LOAN-TO-VALUE RATIOS    WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
0.01 - 25.00                             9.03%    19.80%        19.80%       546
30.01 - 35.00                           7.125     32.53         32.53        621
35.01 - 40.00                           7.393     38.59         38.59        614
40.01 - 45.00                           7.294     43.45         43.45        590
45.01 - 50.00                           7.015     48.13         48.13        594
50.01 - 55.00                           6.912     53.11         53.11        608
55.01 - 60.00                           7.364     57.88         57.88        587
60.01 - 65.00                           7.493     62.95         62.95        599
65.01 - 70.00                           7.348     68.61         69.04        617
70.01 - 75.00                           7.577     73.71         73.76        599
75.01 - 80.00                           7.385     79.46         79.49        621
80.01 - 85.00                           7.449     84.48         84.57        616
85.01 - 90.00                           7.518     89.03         89.72        630
90.01 - 95.00                           7.543     88.89         94.68        646
95.01 - 100.00                          6.896     81.69         99.94        669
TOTAL:                                   7.15%    81.91%        92.42%       648





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9. OWNER OCCUPANCY



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
OWNER OCCUPANCY                   OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
Primary Home                         3,336   $  760,202,258.22                97.35%       $   227,878.37
Investment Property                    107       20,674,460.06                 2.65            193,219.25
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


OWNER OCCUPANCY                  WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
Primary Home                             7.14%    82.06%        92.85%       648
Investment Property                     7.691     76.36         76.71        662
TOTAL:                                   7.15%    81.91%        92.42%       648





--------------------------------------------------------------------------------

10. PROPERTY TYPE



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
PROPERTY TYPE                     OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
Single Family Detached               2,395   $  526,091,698.08                67.37%       $   219,662.50
Planned Unit Development               571      134,372,263.62                17.21            235,327.96
Two-to-Four Family                     172       56,948,122.53                 7.29            331,093.74
Condominium                            265       56,630,061.56                 7.25            213,698.35
Single Family Attached                  26        4,161,939.72                 0.53            160,074.60
Townhouse                               13        2,267,632.77                 0.29            174,433.29
Manufactured Home                        1          405,000.00                 0.05            405,000.00
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


PROPERTY TYPE                    WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
Single Family Detached                   7.16%    81.90%        92.38%       646
Planned Unit Development                7.159      81.9         92.32        644
Two-to-Four Family                      7.172     81.91         90.81        673
Condominium                             7.086     81.92         94.91        658
Single Family Attached                  7.293     81.69         91.82        648
Townhouse                               7.309     86.42         91.13        613
Manufactured Home                       6.675     69.83         69.83        637
TOTAL:                                   7.15%    81.91%        92.42%       648





--------------------------------------------------------------------------------

11. LOAN PURPOSE



                                                                   % OF AGGREGATE
                                  NUMBER     AGGREGATE CURRENT   PRINCIPAL BALANCE
LOAN PURPOSE                     OF LOANS    PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
Purchase                             2,116   $  470,961,162.40                60.31%       $   222,571.44
Refinance - Rate/Term                1,021      234,949,984.12                30.09            230,117.52
Refinance - Cashout                    306       74,965,571.77                  9.6            244,985.53
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


LOAN PURPOSE                     WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
Purchase                                7.04%     82.35%        97.13%       664
Refinance - Rate/Term                  7.338      81.23         85.38        626
Refinance - Cashout                    7.265      81.25          84.9        622
TOTAL:                                  7.15%     81.91%        92.42%       648





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12. DOCUMENTATION TYPE



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
DOCUMENTATION TYPE                OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
Full Documentation                   1,749   $  308,768,036.89                39.54%       $   176,539.76
Stated Income Wage Earner              938      254,980,129.99                32.65            271,833.83
Stated Income Self-Employed            513      153,753,173.01                19.69            299,713.79
12 Month Bank Statements               175       43,881,631.33                 5.62            250,752.18
24 Month Bank Statements                55       16,093,060.95                 2.06            292,601.11
Limited Documentation                   13        3,400,686.11                 0.44            261,591.24
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


DOCUMENTATION TYPE               WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
Full Documentation                       7.20%    82.02%        90.84%       614
Stated Income Wage Earner                7.12     81.77         94.21        683
Stated Income Self-Employed             7.073     81.67         93.01        672
12 Month Bank Statements                 7.24      82.5         91.59        622
24 Month Bank Statements                7.288     83.13          90.8        616
Limited Documentation                    7.09     79.46         94.04        648
TOTAL:                                   7.15%    81.91%        92.42%       648





--------------------------------------------------------------------------------

13. PRODUCT TYPE



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
PRODUCT TYPE                      OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
2/28 LIBOR ARM                       1,353   $  216,229,600.33                27.69%       $   159,814.93
2/28 LIBOR IO ARM                    1,608      457,723,019.78                58.62            284,653.62
3/27 LIBOR ARM                         224       35,600,038.67                 4.56            158,928.74
3/27 LIBOR IO ARM                      219       59,447,365.59                 7.61            271,449.16
5/1 TREASURY ARM                         8        2,461,854.46                 0.32            307,731.81
5/1 TREASURY IO ARM                     31        9,414,839.46                 1.21            303,704.50
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


PRODUCT TYPE                     WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
2/28 LIBOR ARM                           7.54%    81.98%        90.64%       620
2/28 LIBOR IO ARM                       6.963     82.01         93.96        663
3/27 LIBOR ARM                           7.56     82.95         90.25        617
3/27 LIBOR IO ARM                       7.022     80.88         89.92        657
5/1 TREASURY ARM                        6.684     70.46          76.1        652
5/1 TREASURY IO ARM                     6.998     80.94         86.66        663
TOTAL:                                   7.15%    81.91%        92.42%       648





--------------------------------------------------------------------------------

14. STATE



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
STATE                             OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
California                             896   $  321,354,814.91                41.15%       $   358,654.93
Illinois                               320       64,940,376.39                 8.32            202,938.68
Florida                                287       58,719,560.90                 7.52            204,597.77
Arizona                                260       54,885,420.00                 7.03            211,097.77
Washington                             222       44,416,141.37                 5.69            200,072.71
Texas                                  209       23,870,372.25                 3.06            114,212.31
Missouri                               145       17,096,477.72                 2.19            117,906.74
Colorado                               139       24,167,802.63                 3.09            173,869.08
Georgia                                 95       13,672,882.97                 1.75            143,925.08
Massachusetts                           81       22,488,699.94                 2.88            277,638.27
Maryland                                76       19,844,668.91                 2.54            261,114.06
Iowa                                    73        6,878,525.99                 0.88             94,226.38
Kansas                                  73        8,047,134.83                 1.03            110,234.72
Michigan                                63        9,779,389.54                 1.25            155,228.41
Virginia                                58       16,894,372.95                 2.16            291,282.29
Nevada                                  54       11,493,618.00                 1.47            212,844.78
Minnesota                               48        9,130,480.21                 1.17            190,218.34
Oregon                                  46        7,946,276.26                 1.02            172,745.14
Idaho                                   28        3,981,259.68                 0.51            142,187.85
Utah                                    27        4,302,345.00                 0.55            159,346.11
Tennessee                               26        2,842,641.48                 0.36            109,332.36
Indiana                                 25        2,205,289.32                 0.28             88,211.57
New Jersey                              24        6,233,708.00                  0.8            259,737.83
New Hampshire                           18        3,976,125.66                 0.51            220,895.87
Oklahoma                                16        1,935,211.04                 0.25            120,950.69
Pennsylvania                            16        2,773,033.11                 0.36            173,314.57
Wisconsin                               16        1,978,914.23                 0.25            123,682.14
Nebraska                                15        1,544,762.69                  0.2            102,984.18
Rhode Island                            15        3,270,060.55                 0.42            218,004.04
Kentucky                                 9          937,539.14                 0.12            104,171.02
North Carolina                           9        1,087,729.94                 0.14            120,858.88
New Mexico                               9        1,825,240.26                 0.23            202,804.47
Arkansas                                 7          791,050.91                  0.1            113,007.27
Maine                                    7        1,094,757.59                 0.14            156,393.94
South Carolina                           6          870,939.89                 0.11            145,156.65
Connecticut                              4          726,457.84                 0.09            181,614.46
Delaware                                 4          740,367.61                 0.09            185,091.90
Mississippi                              4          483,431.34                 0.06            120,857.83
Louisiana                                3          222,726.59                 0.03             74,242.20
Vermont                                  3          550,381.47                 0.07            183,460.49
Ohio                                     2          249,776.57                 0.03            124,888.28
Wyoming                                  2          234,373.97                 0.03            117,186.99
North Dakota                             1           66,462.91                 0.01             66,462.91
South Dakota                             1          111,017.17                 0.01            111,017.17
West Virginia                            1          214,098.52                 0.03            214,098.52
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


STATE                            WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
California                               6.81%    81.61%        92.74%       666
Illinois                                7.615     82.37         92.63        647
Florida                                 7.292     81.68         90.84        639
Arizona                                  7.25     81.66         90.17        635
Washington                              7.168     82.15         92.74        637
Texas                                   7.323      80.4         95.97        635
Missouri                                 7.99     84.36         93.63        610
Colorado                                 7.07     81.25         95.26        646
Georgia                                 7.281     82.93          93.9        623
Massachusetts                           7.494     81.92         88.88        635
Maryland                                7.459     81.42         90.01        640
Iowa                                    8.397      84.4         92.12        607
Kansas                                  7.842     82.92         94.78        623
Michigan                                7.758     84.56         92.89        631
Virginia                                7.101     81.97         92.58        653
Nevada                                      7     80.86         90.37        633
Minnesota                               6.967     81.79          95.8        649
Oregon                                  6.993     81.29         94.05        634
Idaho                                    7.22     81.02         92.13        613
Utah                                    7.518     84.94         93.74        635
Tennessee                               8.021     86.09          96.3        606
Indiana                                 8.203     82.31         94.75        621
New Jersey                              7.813     82.65         86.94        637
New Hampshire                           7.267      83.7         91.71        621
Oklahoma                                7.659     80.85         94.13        600
Pennsylvania                            7.375      82.2         90.48        616
Wisconsin                               7.764     83.47         93.76        607
Nebraska                                7.724     79.73         90.15        611
Rhode Island                            6.825     81.87            93        661
Kentucky                                8.125     83.71         95.96        589
North Carolina                          7.291     82.85         93.99        634
New Mexico                              7.544     82.86         90.17        611
Arkansas                                8.084     84.45         94.08        604
Maine                                   8.022     81.06         88.46        616
South Carolina                            7.2     79.87         87.25        608
Connecticut                             7.704     84.66         94.07        608
Delaware                                7.936     88.61         92.22        566
Mississippi                             7.436     86.54         94.86        624
Louisiana                               7.882     83.19         97.44        615
Vermont                                 8.628     85.06         85.06        639
Ohio                                    7.878     86.48         86.48        610
Wyoming                                 6.693     79.09         92.58        636
North Dakota                              8.9        95            95        614
South Dakota                                7        80           100        586
West Virginia                           8.625        95            95        589
TOTAL:                                   7.15%    81.91%        92.42%       648





--------------------------------------------------------------------------------

15. PREPAYMENT PENALTY



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
PREPAYMENT PENALTY                OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
No                                     687      138,908,223.25                17.79%           202,195.38
Yes                                   2756      641,968,495.04                82.21            232,934.87
TOTAL:                                3443      780,876,718.29               100.00%           226,801.25


PREPAYMENT PENALTY               WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
No                                       7.68%    82.29%        91.19%       640
Yes                                      7.04     81.82         92.69        650
TOTAL:                                   7.15%    81.91%        92.42%       648





--------------------------------------------------------------------------------

16. PREPAYMENT PENALTY TERM



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
PREPAYMENT PENALTY TERM           OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
0                                      687   $  138,908,223.25                17.79%       $   202,195.38
6                                       73        8,047,134.83                 1.03            110,234.72
12                                      66       19,740,302.50                 2.53            299,095.49
24                                   2,398      564,271,374.16                72.26            235,309.16
36                                     219       49,909,683.55                 6.39            227,898.10
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


PREPAYMENT PENALTY TERM          WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
0                                        7.68%    82.29%        91.19%       640
6                                       7.842     82.92         94.78        623
12                                      7.339     82.37         94.62        667
24                                      7.018     81.83         92.92        650
36                                      7.046     81.35         88.94        647
TOTAL:                                   7.15%    81.91%        92.42%       648





--------------------------------------------------------------------------------

17. FICO SCORES



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
FICO SCORES                       OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
500 - 519                               14   $    1,822,008.24                 0.23%       $   130,143.45
520 - 539                               68       10,687,486.11                 1.37            157,168.91
540 - 559                              188       33,549,171.80                  4.3            178,453.04
560 - 579                              244       44,561,292.67                 5.71            182,628.25
580 - 599                              393       68,434,928.00                 8.76            174,134.68
600 - 619                              447       89,676,735.21                11.48            200,619.09
620 - 639                              417       84,842,419.55                10.87            203,459.04
640 - 659                              402       95,926,951.27                12.28            238,624.26
660 - 679                              468      126,978,583.64                16.26            271,321.76
680 - 699                              311       85,128,371.13                 10.9            273,724.67
700 - 719                              206       57,341,587.28                 7.34            278,357.22
720 - 739                              139       39,101,051.07                 5.01            281,302.53
740 - 759                               76       23,108,553.72                 2.96            304,059.92
760 - 779                               42       11,791,365.97                 1.51            280,746.81
780 - 799                               24        6,158,096.63                 0.79            256,587.36
800 - 819                                4        1,768,116.00                 0.23            442,029.00
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


FICO SCORES                      WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
500 - 519                                9.79%    69.99%        69.99%       508
520 - 539                               8.761     77.28         78.34        529
540 - 559                               8.047     80.51         81.62        551
560 - 579                               7.862     81.72          82.5        569
580 - 599                               7.318      80.6         89.05        589
600 - 619                               7.193     82.53         91.13        609
620 - 639                               7.142     82.27         91.45        629
640 - 659                               7.027     81.93         92.79        649
660 - 679                               6.986     82.15         96.42        669
680 - 699                               6.922      82.1         96.08        689
700 - 719                               6.864     82.79         96.41        708
720 - 739                               6.779     82.46         97.19        729
740 - 759                               6.871     82.13         95.56        749
760 - 779                                6.88     82.21         95.69        769
780 - 799                               6.803      80.6         98.22        788
800 - 819                                6.61     85.79         97.39        805
TOTAL:                                   7.15%    81.91%        92.42%       648





--------------------------------------------------------------------------------

18. LOAN TO VALUE



                                                                   % OF AGGREGATE
                                   NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
LOAN TO VALUE                     OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
0.01 - 25.00                             2   $      109,912.53                 0.01%       $    54,956.27
30.01 - 35.00                            7        1,087,572.15                 0.14            155,367.45
35.01 - 40.00                            3          358,888.15                 0.05            119,629.38
40.01 - 45.00                            7        1,417,848.19                 0.18            202,549.74
45.01 - 50.00                           12        2,461,257.38                 0.32            205,104.78
50.01 - 55.00                           18        3,660,779.55                 0.47            203,376.64
55.01 - 60.00                           32        5,615,050.81                 0.72            175,470.34
60.01 - 65.00                           36        8,473,696.42                 1.09            235,380.46
65.01 - 70.00                          100       20,935,936.27                 2.68            209,359.36
70.01 - 75.00                          162       26,764,360.24                 3.43            165,212.10
75.01 - 80.00                        1,802      388,520,671.08                49.75            215,605.26
80.01 - 85.00                          537      154,547,470.79                19.79            287,797.90
85.01 - 90.00                          578      137,005,052.97                17.55            237,032.96
90.01 - 95.00                          147       29,918,221.75                 3.83            203,525.32
TOTAL:                               3,443   $  780,876,718.29               100.00%       $   226,801.25


LOAN TO VALUE                    WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
0.01 - 25.00                             9.03%    19.80%        19.80%       546
30.01 - 35.00                           7.125     32.53         32.53        621
35.01 - 40.00                           7.393     38.59         38.59        614
40.01 - 45.00                           7.294     43.45         43.45        590
45.01 - 50.00                           7.015     48.13         48.13        594
50.01 - 55.00                           6.912     53.11         53.11        608
55.01 - 60.00                            7.37     57.88          58.4        587
60.01 - 65.00                            7.35     62.86         64.08        607
65.01 - 70.00                           7.442        69         69.74        615
70.01 - 75.00                           7.543     73.82         77.81        606
75.01 - 80.00                           6.966     79.85         95.79        658
80.01 - 85.00                           7.054     84.77         94.98        660
85.01 - 90.00                           7.497     89.74         91.96        635
90.01 - 95.00                           7.921     94.77          94.8        626
TOTAL:                                   7.15%    81.91%        92.42%       648





--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
              10/21/2005 20:49

--------------------------------------------------------------------------------

Disclaimer: This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.





                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                   959 RECORDS
                               BALANCE: 94,455,227

--------------------------------------------------------------------------------

SELECTION CRITERIA: FIXED LOANS
TABLE OF CONTENTS

  1.  Original Principal Balances
  2.  Outstanding Principal Balances
  3.  Current Mortgage Rates
  4.  Original Term To Maturity
  5.  Remaining Term To Maturity
  6.  Lien
  7.  Seasoning (Months)
  8.  Combined Loan-to-Value Ratios
  9.  Owner Occupancy
  10. Property Type
  11. Loan Purpose
  12. Documentation Type
  13. Product Type
  14. STATE
  15. Prepayment Penalty
  16. Prepayment Penalty Term
  17. FICO Scores
  18. Loan To Value

--------------------------------------------------------------------------------

1. ORIGINAL PRINCIPAL BALANCES



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
ORIGINAL PRINCIPAL BALANCES      OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
0.00 - 25,000.00                       56   $    1,199,070.83                 1.27%       $    21,411.98
25,000.01 - 50,000.00                 249        9,294,998.79                 9.84             37,329.31
50,000.01 - 75,000.00                 211       13,117,682.94                13.89             62,169.11
75,000.01 - 100,000.00                127       11,174,696.73                11.83             87,989.74
100,000.01 - 125,000.00               114       12,816,750.73                13.57            112,427.64
125,000.01 - 150,000.00                53        7,278,126.19                 7.71            137,323.14
150,000.01 - 175,000.00                38        6,143,252.13                  6.5            161,664.53
175,000.01 - 200,000.00                18        3,344,741.63                 3.54            185,818.98
200,000.01 - 225,000.00                17        3,603,007.62                 3.81            211,941.62
225,000.01 - 250,000.00                11        2,646,938.44                  2.8            240,630.77
250,000.01 - 275,000.00                 7        1,831,553.95                 1.94            261,650.56
275,000.01 - 300,000.00                10        2,896,348.06                 3.07            289,634.81
300,000.01 - 333,700.00                18        5,701,893.12                 6.04            316,771.84
333,700.01 - 350,000.00                 5        1,731,362.54                 1.83            346,272.51
350,000.01 - 600,000.00                23       10,197,303.36                 10.8            443,361.02
600,000.01 - 1,000,000.00               2        1,477,500.00                 1.56            738,750.00
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


ORIGINAL PRINCIPAL BALANCES      WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
0.00 - 25,000.00                         9.72%    98.73%        98.73%       709
25,000.01 - 50,000.00                   9.951     98.03         98.34        710
50,000.01 - 75,000.00                   9.516     91.76         94.89        687
75,000.01 - 100,000.00                  9.291     91.62         94.79        685
100,000.01 - 125,000.00                 8.488     88.27         95.05        665
125,000.01 - 150,000.00                 8.165     84.31         92.08        647
150,000.01 - 175,000.00                 7.525     82.46         91.65        639
175,000.01 - 200,000.00                 7.702     77.24         83.32        606
200,000.01 - 225,000.00                 7.334      78.2          83.5        641
225,000.01 - 250,000.00                 7.209     73.98         75.85        621
250,000.01 - 275,000.00                 7.211     81.24         92.67        658
275,000.01 - 300,000.00                 7.366     79.71         81.73        651
300,000.01 - 333,700.00                 6.872     82.37         91.72        633
333,700.01 - 350,000.00                  6.64      75.6         79.46        644
350,000.01 - 600,000.00                  6.96     80.56         88.69        654
600,000.01 - 1,000,000.00               6.758     82.16         88.63        619
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

2. OUTSTANDING PRINCIPAL BALANCES



                                                                 % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
OUTSTANDING PRINCIPAL BALANCES   OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
0.00 - 25,000.00                       58   $    1,249,051.86                 1.32%       $    21,535.38
25,000.01 - 50,000.00                 247        9,245,017.76                 9.79             37,429.22
50,000.01 - 75,000.00                 212       13,190,123.89                13.96             62,217.57
75,000.01 - 100,000.00                126       11,102,255.78                11.75             88,113.14
100,000.01 - 125,000.00               114       12,816,750.73                13.57            112,427.64
125,000.01 - 150,000.00                53        7,278,126.19                 7.71            137,323.14
150,000.01 - 175,000.00                39        6,318,143.63                 6.69            162,003.68
175,000.01 - 200,000.00                17        3,169,850.12                 3.36            186,461.77
200,000.01 - 225,000.00                17        3,603,007.62                 3.81            211,941.62
225,000.01 - 250,000.00                11        2,646,938.44                  2.8            240,630.77
250,000.01 - 275,000.00                 7        1,831,553.95                 1.94            261,650.56
275,000.01 - 300,000.00                10        2,896,348.06                 3.07            289,634.81
300,000.01 - 333,700.00                18        5,701,893.12                 6.04            316,771.84
333,700.01 - 350,000.00                 5        1,731,362.54                 1.83            346,272.51
350,000.01 - 600,000.00                23       10,197,303.36                 10.8            443,361.02
600,000.01 - 1,000,000.00               2        1,477,500.00                 1.56            738,750.00
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


OUTSTANDING PRINCIPAL BALANCES   WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
0.00 - 25,000.00                         9.74%    98.78%        98.78%       709
25,000.01 - 50,000.00                   9.949     98.02         98.33        710
50,000.01 - 75,000.00                   9.522      91.8         94.92        688
75,000.01 - 100,000.00                  9.283     91.57         94.76        685
100,000.01 - 125,000.00                 8.488     88.27         95.05        665
125,000.01 - 150,000.00                 8.165     84.31         92.08        647
150,000.01 - 175,000.00                 7.501     82.39         91.88        640
175,000.01 - 200,000.00                  7.76     77.09          82.4        604
200,000.01 - 225,000.00                 7.334      78.2          83.5        641
225,000.01 - 250,000.00                 7.209     73.98         75.85        621
250,000.01 - 275,000.00                 7.211     81.24         92.67        658
275,000.01 - 300,000.00                 7.366     79.71         81.73        651
300,000.01 - 333,700.00                 6.872     82.37         91.72        633
333,700.01 - 350,000.00                  6.64      75.6         79.46        644
350,000.01 - 600,000.00                  6.96     80.56         88.69        654
600,000.01 - 1,000,000.00               6.758     82.16         88.63        619
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

3. CURRENT MORTGAGE RATES



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
CURRENT MORTGAGE RATES           OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
6.000 - 6.499                          15   $    4,371,096.40                 4.63%       $   291,406.43
6.500 - 6.999                          92       21,437,092.39                 22.7            233,011.87
7.000 - 7.499                          72       11,945,436.20                12.65            165,908.84
7.500 - 7.999                          89       11,806,825.53                 12.5            132,660.96
8.000 - 8.499                          40        5,304,584.69                 5.62            132,614.62
8.500 - 8.999                          38        3,939,291.51                 4.17            103,665.57
9.000 - 9.499                          73        3,276,277.97                 3.47             44,880.52
9.500 - 9.999                         299       19,413,374.80                20.55             64,927.67
10.000 - 10.499                       134        7,174,453.28                  7.6             53,540.70
10.500 - 10.999                       107        5,786,794.27                 6.13             54,082.19
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


CURRENT MORTGAGE RATES           WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
6.000 - 6.499                            6.37%    75.91%        85.40%       649
6.500 - 6.999                           6.749     78.88          86.4        644
7.000 - 7.499                           7.269     79.51         90.52        636
7.500 - 7.999                           7.728     79.11         88.43        631
8.000 - 8.499                           8.272     82.63         91.93        622
8.500 - 8.999                           8.748     79.84         81.71        626
9.000 - 9.499                           9.249     93.93         94.39        688
9.500 - 9.999                           9.828     98.56         98.58        709
10.000 - 10.499                        10.206     99.83         99.83        709
10.500 - 10.999                        10.624     98.69         98.69        711
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

4. ORIGINAL TERM TO MATURITY



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
ORIGINAL TERM TO MATURITY        OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
1 - 180                               601   $   34,964,426.05                37.02%       $    58,177.08
181 - 240                               7          896,963.24                 0.95            128,137.61
241 - 360                             351       58,593,837.76                62.03            166,934.01
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


ORIGINAL TERM TO MATURITY        WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
1 - 180                                  9.94%    99.04%        99.32%       712
181 - 240                                7.81     65.38         65.38        630
241 - 360                               7.342     79.29         87.71        635
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

5. REMAINING TERM TO MATURITY



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
REMAINING TERM TO MATURITY       OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
121 - 180                             601   $   34,964,426.05                37.02%       $    58,177.08
181 - 240                               7          896,963.24                 0.95            128,137.61
301 - 360                             351       58,593,837.76                62.03            166,934.01
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


REMAINING TERM TO MATURITY       WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
121 - 180                                9.94%    99.04%        99.32%       712
181 - 240                                7.81     65.38         65.38        630
301 - 360                               7.342     79.29         87.71        635
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

6. LIEN



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
LIEN                             OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
1                                     367   $   60,510,967.45                64.06%       $   164,880.02
2                                     592       33,944,259.60                35.94             57,338.28
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


LIEN                             WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
1                                        7.36%    79.08%        87.39%       635
2                                        9.996    99.64         99.64        715
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

7. SEASONING (MONTHS)



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
SEASONING (MONTHS)               OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
0                                      69   $    6,496,850.00                 6.88%       $    94,157.25
1                                     436       40,828,794.31                43.23             93,644.02
2                                     344       36,479,900.04                38.62            106,046.22
3                                     106        9,810,760.76                10.39             92,554.35
4                                       4          838,921.95                 0.89            209,730.49
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


SEASONING (MONTHS)               WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
0                                        8.68%    85.76%        88.58%       681
1                                         8.4     87.53          92.6        667
2                                       8.105     85.29         91.58        655
3                                       8.534     87.67         92.25        667
4                                       7.116     78.03         81.79        658
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

8. COMBINED LOAN-TO-VALUE RATIOS



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
COMBINED LOAN-TO-VALUE RATIOS    OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
0.01 - 25.00                            2   $      124,947.96                 0.13%       $    62,473.98
30.01 - 35.00                           2          149,972.11                 0.16             74,986.06
40.01 - 45.00                           3          415,140.47                 0.44            138,380.16
45.01 - 50.00                           7          710,905.38                 0.75            101,557.91
50.01 - 55.00                           5          508,110.49                 0.54            101,622.10
55.01 - 60.00                           9        1,702,468.83                  1.8            189,163.20
60.01 - 65.00                           5          695,342.19                 0.74            139,068.44
65.01 - 70.00                          15        3,085,525.71                 3.27            205,701.71
70.01 - 75.00                          23        3,234,573.82                 3.42            140,633.64
75.01 - 80.00                          52        9,675,554.80                10.24            186,068.36
80.01 - 85.00                          26        4,731,876.81                 5.01            181,995.26
85.01 - 90.00                          46        8,721,992.11                 9.23            189,608.52
90.01 - 95.00                          43        3,880,471.85                 4.11             90,243.53
95.01 - 100.00                        721       56,818,344.51                60.15             78,804.92
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


COMBINED LOAN-TO-VALUE RATIOS    WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
0.01 - 25.00                             8.95%    16.49%        16.49%       623
30.01 - 35.00                           8.033     30.83         30.83        607
40.01 - 45.00                             6.9     41.96         41.96        660
45.01 - 50.00                           8.067     46.97         46.97        594
50.01 - 55.00                            7.45     51.09         52.87        581
55.01 - 60.00                           6.991     58.67         58.67        634
60.01 - 65.00                           7.287     62.11         62.11        640
65.01 - 70.00                           7.319     68.43         68.43        600
70.01 - 75.00                           7.435     73.49         73.49        613
75.01 - 80.00                           7.327     79.28          79.5        632
80.01 - 85.00                           7.411      84.4          84.4        629
85.01 - 90.00                           7.495     87.98          89.4        646
90.01 - 95.00                           8.556     90.37         94.61        658
95.01 - 100.00                          8.833     91.66         99.95        684
TOTAL:                                   8.31%    86.47%        91.80%       664





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9. OWNER OCCUPANCY



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
OWNER OCCUPANCY                  OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
Primary Home                          944   $   92,570,100.30                98.00%       $    98,061.55
Investment Property                    15        1,885,126.75                    2            125,675.12
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


OWNER OCCUPANCY                  WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
Primary Home                             8.31%    86.68%        92.12%       663
Investment Property                     8.095     76.08         76.08        670
TOTAL:                                   8.31%    86.47%        91.80%       664





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10. PROPERTY TYPE



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
PROPERTY TYPE                    OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
Single Family Detached                664   $   66,781,757.00                70.70%       $   100,574.94
Planned Unit Development              147       15,306,719.13                16.21            104,127.34
Two-to-Four Family                     56        6,531,541.56                 6.91            116,634.67
Condominium                            79        4,908,307.09                  5.2             62,130.47
Single Family Attached                 10          773,184.31                 0.82             77,318.43
Townhouse                               3          153,717.97                 0.16             51,239.32
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


PROPERTY TYPE                    WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
Single Family Detached                   8.32%    86.57%        91.36%       661
Planned Unit Development                7.941     84.89         93.58        653
Two-to-Four Family                      8.474     84.71         87.16        694
Condominium                             9.012     92.83         97.39        684
Single Family Attached                  8.294      84.8         99.75        662
Townhouse                               8.731     82.33         82.33        649
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

11. LOAN PURPOSE



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
LOAN PURPOSE                     OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
Purchase                              703   $   55,870,412.60                59.15%       $    79,474.27
Refinance - Rate/Term                 189       27,936,328.79                 29.58           147,811.26
Refinance - Cashout                    67       10,648,485.65                 11.27           158,932.62
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


LOAN PURPOSE                     WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
Purchase                                 8.82%    91.40%        97.27%        682
Refinance - Rate/Term                    7.53     79.96         85.64         636
Refinance - Cashout                     7.638     77.71         79.22         636
TOTAL:                                   8.31%    86.47%        91.80%        664





--------------------------------------------------------------------------------

12. DOCUMENTATION TYPE



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
DOCUMENTATION TYPE               OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
Full Documentation                    340   $   43,419,137.31                45.97%       $   127,703.35
Stated Income Wage Earner             421       27,394,121.63                   29             65,069.17
Stated Income Self-Employed           155       14,841,781.12                15.71             95,753.43
12 Month Bank Statements               28        6,004,239.11                 6.36            214,437.11
24 Month Bank Statements               11        2,285,140.05                 2.42            207,740.00
Limited Documentation                   4          510,807.83                 0.54            127,701.96
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


DOCUMENTATION TYPE               WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
Full Documentation                       7.44%    80.40%        87.77%       633
Stated Income Wage Earner               9.599     95.52         96.64        705
Stated Income Self-Employed             9.047     90.07          95.7        692
12 Month Bank Statements                7.365     82.58         91.19        637
24 Month Bank Statements                7.026     80.02         84.49        632
Limited Documentation                   8.342     87.16           100        687
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

13. PRODUCT TYPE



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
PRODUCT TYPE                     OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
30/15 BALLOON                         590   $   33,903,489.21                35.89%       $    57,463.54
Fixed                                 332       51,217,726.16                54.22            154,270.26
Fixed IO                               37        9,334,011.68                 9.88            252,270.59
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


PRODUCT TYPE                     WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
30/15 BALLOON                            9.99%    99.60%        99.64%       715
Fixed                                    7.43     78.92         87.23        632
Fixed IO                                7.015     80.22         88.37        651
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

14. STATE



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
STATE                            OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
California                            272   $   31,610,976.85                33.47%       $   116,216.83
Texas                                 128       11,429,828.05                 12.1             89,295.53
Illinois                               76        5,685,684.43                 6.02             74,811.64
Washington                             72        8,503,837.95                    9            118,108.86
Florida                                69        6,021,355.49                 6.37             87,266.02
Arizona                                52        4,836,130.45                 5.12             93,002.51
Colorado                               37        2,722,340.78                 2.88             73,576.78
Georgia                                27        2,790,499.79                 2.95            103,351.84
Virginia                               24        2,607,390.38                 2.76            108,641.27
Kansas                                 22        2,023,226.61                 2.14             91,964.85
Massachusetts                          19        1,769,616.83                 1.87             93,137.73
Oregon                                 18        2,904,520.27                 3.08            161,362.24
Nevada                                 15        1,415,033.20                  1.5             94,335.55
Maryland                               13        1,418,638.29                  1.5            109,126.02
Minnesota                              13          745,562.11                 0.79             57,350.93
Missouri                               13          864,225.26                 0.91             66,478.87
Michigan                               12          702,189.33                 0.74             58,515.78
Tennessee                              12        1,086,045.83                 1.15             90,503.82
Nebraska                               10          650,187.62                 0.69             65,018.76
Iowa                                    9          901,205.25                 0.95            100,133.92
Utah                                    8          346,078.76                 0.37             43,259.85
Arkansas                                4          335,376.26                 0.36             83,844.07
New Hampshire                           4          182,156.23                 0.19             45,539.06
New Jersey                              4          209,825.75                 0.22             52,456.44
Pennsylvania                            4          293,002.24                 0.31             73,250.56
Rhode Island                            4          303,396.28                 0.32             75,849.07
Indiana                                 3          323,270.40                 0.34            107,756.80
West Virginia                           3          585,014.92                 0.62            195,004.97
Idaho                                   2          182,909.11                 0.19             91,454.56
Maine                                   2          168,698.91                 0.18             84,349.45
North Carolina                          2          252,409.10                 0.27            126,204.55
Delaware                                1           84,885.36                 0.09             84,885.36
Kentucky                                1           22,922.46                 0.02             22,922.46
Ohio                                    1          210,000.00                 0.22            210,000.00
Oklahoma                                1          124,000.00                 0.13            124,000.00
South Carolina                          1          116,807.25                 0.12            116,807.25
Wisconsin                               1           25,979.25                 0.03             25,979.25
TOTAL:                                959   $   94,455,227.05               100.00%       $    98,493.46


STATE                            WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
California                               8.56%    89.17%        90.64%       684
Texas                                   7.698        81         94.74        635
Illinois                                9.158     90.34         94.38        680
Washington                              7.669     83.42         88.16        654
Florida                                 8.492     86.38         91.94        652
Arizona                                 8.191     84.02         89.49        651
Colorado                                8.426     90.14         96.89        679
Georgia                                  7.68     83.63         97.94        660
Virginia                                8.967     90.66         91.95        643
Kansas                                  8.425     83.39         90.92        634
Massachusetts                           8.933     86.27         92.28        661
Oregon                                  7.253     84.36          91.7        647
Nevada                                   8.23     83.75         83.75        652
Maryland                                 8.81      87.7         92.32        681
Minnesota                               8.717     92.51           100        699
Missouri                                8.233     81.84         93.32        647
Michigan                                8.117     89.58         99.85        638
Tennessee                               8.631     86.39         92.53        631
Nebraska                                 7.93     86.36         97.85        676
Iowa                                    8.059     85.69         92.93        660
Utah                                    8.863     97.53         97.53        688
Arkansas                                8.658     84.43         94.73        603
New Hampshire                          10.035      97.9          97.9        711
New Jersey                             10.135       100           100        701
Pennsylvania                            8.177     82.34         82.34        664
Rhode Island                            8.383     72.42         72.42        633
Indiana                                  8.17     83.87         95.56        635
West Virginia                           7.859      86.4          86.4        627
Idaho                                   7.011     78.09         99.88        646
Maine                                    7.72     82.68         82.68        585
North Carolina                          7.708     78.08         92.34        579
Delaware                                 7.99        68            68        604
Kentucky                                 10.7       100           100        705
Ohio                                     7.99     75.13         75.13        694
Oklahoma                                  6.5        80           100        669
South Carolina                           6.99     89.31         89.31        702
Wisconsin                                10.5       100           100        765
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

15. PREPAYMENT PENALTY



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
PREPAYMENT PENALTY               OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
NO                                    314       19,356,728.81                20.49%            61,645.63
Yes                                   645       75,098,498.23                79.51            116,431.78
TOTAL:                                959       94,455,227.05               100.00%            98,493.46


PREPAYMENT PENALTY               WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
NO                                       9.33%    91.91%        94.43%       684
Yes                                     8.045     85.07         91.12        658
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

16. PREPAYMENT PENALTY TERM



                                                                 % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
PREPAYMENT PENALTY TERM          OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
0                                     314   $   19,356,728.81                20.49%       $    61,645.63
6                                      18        1,806,022.25                 1.91            100,334.57
12                                      6          643,917.69                 0.68            107,319.62
24                                    328       22,609,963.77                23.94             68,932.82
30                                      1          180,000.00                 0.19            180,000.00
36                                    292       49,858,594.53                52.79            170,748.61
TOTAL:                                959       94,455,227.05               100.00%       $    98,493.46


PREPAYMENT PENALTY TERM          WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
0                                        9.33%    91.91%        94.43%       684
6                                       8.199     81.46          89.9        627
12                                      9.478     87.01         87.01        680
24                                       9.78     98.45         99.18        710
30                                       7.45        80           100        597
36                                      7.236     79.13         87.52        636
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

17. FICO SCORES



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
FICO SCORES                      OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
500 - 519                               1   $       85,966.19                 0.09%       $    85,966.19
520 - 539                               2          187,087.99                  0.2             93,544.00
540 - 559                              21        3,061,740.23                 3.24            145,797.15
560 - 579                              16        2,109,868.31                 2.23            131,866.77
580 - 599                              58        8,209,257.36                 8.69            141,538.92
600 - 619                              59       10,127,687.98                10.72            171,655.73
620 - 639                              51        7,578,687.68                 8.02            148,601.72
640 - 659                              61       11,955,682.54                12.66            195,994.80
660 - 679                              43        7,936,270.52                  8.4            184,564.43
680 - 699                             258       17,277,883.88                18.29             66,968.54
700 - 719                             163       11,229,012.08                11.89             68,889.64
720 - 739                             110        6,815,902.71                 7.22             61,962.75
740 - 759                              61        4,480,099.52                 4.74             73,444.25
760 - 779                              31        2,005,495.04                 2.12             64,693.39
780 - 799                              23        1,332,109.11                 1.41             57,917.79
800 - 819                               1           62,475.90                 0.07             62,475.90
TOTAL:                                959       94,455,227.05               100.00%       $    98,493.46


FICO SCORES                      WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
500 - 519                               10.55%    49.14%        49.14%       510
520 - 539                               8.375     80.48         80.48        534
540 - 559                                8.08     77.16         78.65        550
560 - 579                                8.14     78.74         78.74        570
580 - 599                               7.556     75.29         85.48        590
600 - 619                               7.271     79.77          86.4        609
620 - 639                               7.338     77.91         85.92        630
640 - 659                               7.226     80.99         91.26        649
660 - 679                               7.139     79.74          90.7        667
680 - 699                               9.315     94.61         96.45        689
700 - 719                               9.297     94.87         96.92        707
720 - 739                               9.738     98.17         98.94        729
740 - 759                               9.236     94.86         97.61        748
760 - 779                               9.446     97.21         99.45        770
780 - 799                               9.974       100           100        787
800 - 819                               10.64       100           100        805
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

18. LOAN TO VALUE



                                                                  % OF AGGREGATE
                                  NUMBER    AGGREGATE CURRENT   PRINCIPAL BALANCE
LOAN TO VALUE                    OF LOANS   PRINCIPAL BALANCE   AS OF CUT-OFF DATE   AVG CURRENT BALANCE
0.01 - 25.00                            2   $      124,947.96                 0.13%       $    62,473.98
30.01 - 35.00                           2          149,972.11                 0.16             74,986.06
40.01 - 45.00                           4          502,044.87                 0.53            125,511.22
45.01 - 50.00                           7          710,905.38                 0.75            101,557.91
50.01 - 55.00                           4          421,206.08                 0.45            105,301.52
55.01 - 60.00                          10        1,805,529.92                 1.91            180,552.99
60.01 - 65.00                           5          695,342.19                 0.74            139,068.44
65.01 - 70.00                          15        3,085,525.71                 3.27            205,701.71
70.01 - 75.00                          35        3,922,249.42                 4.15            112,064.27
75.01 - 80.00                         188       31,307,858.82                33.15            166,531.16
80.01 - 85.00                          43        8,626,065.18                 9.13            200,606.17
85.01 - 90.00                          44        7,716,627.76                 8.17            175,377.90
90.01 - 95.00                          39        2,877,225.28                 3.05             73,775.01
95.01 - 100.00                        561       32,509,726.36                34.42             57,949.60
TOTAL:                                959       94,455,227.05               100.00%       $    98,493.46


LOAN TO VALUE                    WA GROSS CPN    WA LTV    WA COMBLTV    WA FICO
0.01 - 25.00                             8.95%    16.49%        16.49%       623
30.01 - 35.00                           8.033     30.83         30.83        607
40.01 - 45.00                           7.262     42.04         43.85        640
45.01 - 50.00                           8.067     46.97         46.97        594
50.01 - 55.00                           7.132     52.87         52.87        589
55.01 - 60.00                           7.048     58.75         59.89        635
60.01 - 65.00                           7.287     62.11         62.11        640
65.01 - 70.00                           7.319     68.43         68.43        600
70.01 - 75.00                           7.518     73.56         78.13        618
75.01 - 80.00                           7.238     79.72         93.15        640
80.01 - 85.00                           7.376     84.36         91.03        635
85.01 - 90.00                           7.567     89.32         89.79        644
90.01 - 95.00                           9.279     94.56         94.71        665
95.01 - 100.00                          9.991     99.98         99.98        715
TOTAL:                                   8.31%    86.47%        91.80%       664





--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
              10/21/2005 20:48

--------------------------------------------------------------------------------

Disclaimer: This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.




                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  1,895 RECORDS
                              BALANCE: 535,919,237

--------------------------------------------------------------------------------

SELECTION CRITERIA: IO LOANS
TABLE OF CONTENTS

1. Original Principal Balances
2. Outstanding Principal Balances
3. Current Mortgage Rates
4. Original Term To Maturity
5. Remaining Term To Maturity
6. Lien
7. Seasoning (Months)
8. Combined Loan-to-Value Ratios
9. Owner Occupancy
10. Property Type
11. Loan Purpose
12. Documentation Type
13. Product Type
14. STATE
15. Prepayment Penalty
16. Prepayment Penalty Term
17. FICO Scores
18. Loan To Value

--------------------------------------------------------------------------------

1. ORIGINAL PRINCIPAL BALANCES



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
ORIGINAL PRINCIPAL BALANCES     LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
50,000.01 - 75,000.00                15    $      983,134.47             0.18%  $  65,542.30      7.64%   80.64%    94.76%      642
75,000.01 - 100,000.00               43         3,836,473.00             0.72      89,220.30     7.432     78.7     90.53       631
100,000.01 - 125,000.00             116        13,176,655.78             2.46     113,591.86     7.167    81.07     95.09       649
125,000.01 - 150,000.00             147        20,310,608.02             3.79     138,167.40     7.106    80.61      93.8       648
150,000.01 - 175,000.00             157        25,523,345.47             4.76     162,569.08     7.205    80.69     92.79       648
175,000.01 - 200,000.00             163        30,631,291.43             5.72     187,922.03     7.099    78.56     91.81       651
200,000.01 - 225,000.00             141        29,904,727.81             5.58     212,090.27     7.147     80.6     92.68       654
225,000.01 - 250,000.00             119        28,329,241.17             5.29     238,060.85     7.227    80.25        92       652
250,000.01 - 275,000.00             153        40,109,506.34             7.48     262,153.64      7.03    81.43     92.48       659
275,000.01 - 300,000.00              90        25,867,698.96             4.83     287,418.88     7.038     80.9     92.55       656
300,000.01 - 333,700.00             165        52,046,075.49             9.71     315,430.76     6.887    82.92     94.22       660
333,700.01 - 350,000.00              62        21,220,139.47             3.96     342,260.31     6.837    80.13     91.35       665
350,000.01 - 600,000.00             464       202,508,361.60            37.79     436,440.43      6.87    82.77     93.77       669
600,000.01 - 1,000,000.00            60        41,471,977.50             7.74     691,199.63     6.809    83.97      94.1       680
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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2. OUTSTANDING PRINCIPAL BALANCES



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
OUTSTANDING                   NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
PRINCIPAL BALANCES              LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
50,000.01 - 75,000.00                15    $      983,134.47             0.18%  $  65,542.30      7.64%   80.64%    94.76%      642
75,000.01 - 100,000.00               43         3,836,473.00             0.72      89,220.30     7.432     78.7     90.53       631
100,000.01 - 125,000.00             116        13,176,655.78             2.46     113,591.86     7.167    81.07     95.09       649
125,000.01 - 150,000.00             147        20,310,608.02             3.79     138,167.40     7.106    80.61      93.8       648
150,000.01 - 175,000.00             157        25,523,345.47             4.76     162,569.08     7.205    80.69     92.79       648
175,000.01 - 200,000.00             163        30,631,291.43             5.72     187,922.03     7.099    78.56     91.81       651
200,000.01 - 225,000.00             141        29,904,727.81             5.58     212,090.27     7.147     80.6     92.68       654
225,000.01 - 250,000.00             119        28,329,241.17             5.29     238,060.85     7.227    80.25        92       652
250,000.01 - 275,000.00             153        40,109,506.34             7.48     262,153.64      7.03    81.43     92.48       659
275,000.01 - 300,000.00              90        25,867,698.96             4.83     287,418.88     7.038     80.9     92.55       656
300,000.01 - 333,700.00             165        52,046,075.49             9.71     315,430.76     6.887    82.92     94.22       660
333,700.01 - 350,000.00              62        21,220,139.47             3.96     342,260.31     6.837    80.13     91.35       665
350,000.01 - 600,000.00             464       202,508,361.60            37.79     436,440.43      6.87    82.77     93.77       669
600,000.01 - 1,000,000.00            60        41,471,977.50             7.74     691,199.63     6.809    83.97      94.1       680
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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3. CURRENT MORTGAGE RATES



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
CURRENT MORTGAGE RATES          LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
6.000 - 6.499                       299    $   94,645,260.12            17.66%  $ 316,539.33      6.33%   80.87%    94.82%      674
6.500 - 6.999                       844       253,599,645.80            47.32     300,473.51     6.742    81.51     94.54       670
7.000 - 7.499                       342        90,833,620.57            16.95     265,595.38     7.242    81.87     92.41       659
7.500 - 7.999                       283        70,166,817.61            13.09     247,939.28     7.723    83.74     90.36       640
8.000 - 8.499                        62        13,264,662.64             2.48     213,946.17     8.208    83.21     87.94       618
8.500 - 8.999                        51        10,446,279.77             1.95     204,829.02     8.716    84.28     86.57       620
9.000 - 9.499                         9         1,804,500.00             0.34     200,500.00     9.211    81.65     85.37       591
9.500 - 9.999                         4         1,107,150.00             0.21     276,787.50     9.635    73.49     73.49       565
10.000 - 10.499                       1            51,300.00             0.01      51,300.00        10       90        90       556
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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4. ORIGINAL TERM TO MATURITY



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
ORIGINAL TERM TO MATURITY       LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
241 - 360                         1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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5. REMAINING TERM TO MATURITY



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
REMAINING TERM TO MATURITY      LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
301 - 360                         1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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6. LIEN



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
LIEN                            LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
1                                 1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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7. SEASONING (MONTHS)



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
SEASONING (MONTHS)              LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
0                                    92    $   25,955,282.00             4.84%  $ 282,122.63      6.97%   81.18%    93.36%      673
1                                   885       253,930,848.00            47.38     286,927.51      6.97    82.06     93.73       665
2                                   654       177,232,194.20            33.07     270,997.24     7.048    81.64     92.46       659
3                                   252        75,397,727.31            14.07     299,197.33     6.801    81.71     93.67       657
4                                    12         3,403,185.00             0.64     283,598.75     6.759     82.2     94.33       641
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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8. COMBINED LOAN-TO-VALUE RATIOS



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
COMBINED LOAN-TO-VALUE RATIOS   LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
30.01 - 35.00                         3    $      531,000.00             0.10%  $ 177,000.00      6.85%   32.32%    32.32%      622
35.01 - 40.00                         2           278,000.00             0.05     139,000.00     7.252    39.44     39.44       573
40.01 - 45.00                         3           821,000.00             0.15     273,666.67     7.218    43.02     43.02       598
45.01 - 50.00                         9         2,033,869.38             0.38     225,985.49     7.111    47.92     47.92       604
50.01 - 55.00                        12         2,757,599.46             0.51     229,799.96     6.889    53.16     53.16       617
55.01 - 60.00                        15         3,501,799.17             0.65     233,453.28     7.183    57.49     57.49       587
60.01 - 65.00                        15         4,348,400.00             0.81     289,893.33     7.067     62.7      62.7       623
65.01 - 70.00                        47        12,824,183.54             2.39     272,854.97     7.087    69.05     69.05       624
70.01 - 75.00                        44        12,293,319.93             2.29     279,393.63     7.163    73.46     73.56       616
75.01 - 80.00                       163        46,175,555.70             8.62     283,285.62     7.193    79.52     79.52       634
80.01 - 85.00                        91        25,979,024.17             4.85     285,483.78     7.108    84.37     84.53       640
85.01 - 90.00                       220        67,625,589.32            12.62     307,389.04     7.338    88.88     89.71       639
90.01 - 95.00                       100        31,191,734.43             5.82     311,917.34     7.224    87.01     94.61       667
95.01 - 100.00                    1,171       325,558,161.41            60.75     278,017.22     6.812       82     99.94       678
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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9. OWNER OCCUPANCY



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
OWNER OCCUPANCY                 LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
Primary Home                      1,837    $  522,540,798.51            97.50%  $ 284,453.35      6.96%   81.97%    93.70%      662
Investment Property                  58        13,378,438.00              2.5     230,662.72     7.554    76.49     77.03       669
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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10. PROPERTY TYPE



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
PROPERTY TYPE                   LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
Single Family Detached            1,267    $  359,304,891.40            67.04%  $ 283,587.13      6.95%   81.83%    93.45%      661
Planned Unit Development            326        88,609,223.03            16.53     271,807.43     7.021    81.83      92.5       656
Condominium                         179        43,980,077.08             8.21     245,698.75     6.952    81.88     95.15       665
Two-to-Four Family                  108        41,262,145.00              7.7     382,056.90     7.034    81.85     91.62       683
Single Family Attached               10         1,850,860.00             0.35     185,086.00     7.077     82.8     97.24       688
Townhouse                             4           507,040.00             0.09     126,760.00     7.244    79.81     91.57       674
Manufactured Home                     1           405,000.00             0.08     405,000.00     6.675    69.83     69.83       637
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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11. LOAN PURPOSE



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
LOAN PURPOSE                    LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
Purchase                          1,199    $  336,546,084.15            62.80%  $ 280,688.98      6.90%   82.23%    97.63%      676
Refinance - Rate/Term               530       150,084,918.70            28.01     283,179.09      7.11    81.12     86.11       641
Refinance - Cashout                 166        49,288,233.66              9.2     296,917.07     7.052    81.28     85.47       633
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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12. DOCUMENTATION TYPE



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
DOCUMENTATION TYPE              LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
Stated Income Wage Earner           680    $  206,726,731.07            38.57%  $ 304,009.90      7.02%   81.90%    94.99%      687
Full Documentation                  752       172,087,632.70            32.11     228,839.94      6.92    81.72     90.82       630
Stated Income Self-Employed         334       116,812,375.75             21.8     349,737.65     6.935    81.73      94.2       676
12 Month Bank Statements             90        27,934,914.00             5.21     310,387.93     7.074    82.42     92.52       635
24 Month Bank Statements             30         9,694,530.99             1.81     323,151.03     7.077    82.88     91.64       623
Limited Documentation                 9         2,663,052.00              0.5     295,894.67     6.917    78.27     94.83       648
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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13. PRODUCT TYPE



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
PRODUCT TYPE                    LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
2/28 LIBOR IO ARM                 1,608    $  457,723,019.78            85.41%  $ 284,653.62      6.96%   82.01%    93.96%      663
3/27 LIBOR IO ARM                   219        59,447,365.59            11.09     271,449.16     7.022    80.88     89.92       657
5/1 TREASURY IO ARM                  31         9,414,839.46             1.76     303,704.50     6.998    80.94     86.66       663
Fixed IO                             37         9,334,011.68             1.74     252,270.59     7.015    80.22     88.37       651
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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14. STATE



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
STATE                           LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
California                          825    $  299,660,859.65            55.92%  $ 363,225.28      6.79%   81.76%    93.24%      670
Arizona                             184        41,166,349.69             7.68     223,730.16     7.146    81.29     90.86       645
Washington                          140        29,435,026.64             5.49     210,250.19      7.12     82.5     93.92       649
Florida                             120        26,967,745.57             5.03     224,731.21     7.182     81.7     93.19       657
Illinois                            116        28,903,670.55             5.39     249,169.57     7.478    82.23     93.97       665
Colorado                            108        19,638,938.69             3.66     181,842.02     7.065    81.73     95.47       655
Maryland                             49        13,183,621.42             2.46     269,053.50     7.393    80.36     91.65       654
Virginia                             44        14,266,515.00             2.66     324,238.98     7.008    81.57     93.71       668
Georgia                              40         6,643,959.80             1.24     166,099.00     7.277    83.73     95.29       633
Nevada                               36         8,226,386.93             1.54     228,510.75     6.851    80.86      91.5       647
Massachusetts                        35        10,993,875.00             2.05     314,110.71     7.373    83.01     90.44       649
Minnesota                            29         6,372,139.00             1.19     219,728.93     6.865    81.24     96.49       661
Missouri                             26         4,386,784.99             0.82     168,722.50      7.49    84.41     96.18       626
Oregon                               25         5,430,289.00             1.01     217,211.56     6.897    81.92     97.66       651
Michigan                             23         4,297,608.41              0.8     186,852.54     7.773     84.9     94.12       644
Texas                                23         3,302,997.00             0.62     143,608.57     6.973    81.41     97.82       653
Idaho                                 9         1,225,312.00             0.23     136,145.78     6.744       80     97.91       646
Rhode Island                          8         1,680,020.00             0.31     210,002.50     6.675    81.82     95.34       665
Utah                                  8         1,930,957.00             0.36     241,369.63      7.31    86.15     95.39       666
Kansas                                7         1,331,263.00             0.25     190,180.43     7.249    80.89      99.2       649
New Jersey                            6         1,565,392.17             0.29     260,898.70     7.571    76.64     79.69       641
North Carolina                        5           612,408.00             0.11     122,481.60     7.186    83.37     91.94       640
Tennessee                             5           805,700.00             0.15     161,140.00     8.577    89.26     94.43       614
New Hampshire                         4           788,815.00             0.15     197,203.75     7.391    84.92     98.92       662
Oklahoma                              4           574,240.00             0.11     143,560.00     6.764       80     98.11       655
Pennsylvania                          4           722,320.00             0.13     180,580.00      6.86     81.5     97.65       647
Indiana                               3           461,067.00             0.09     153,689.00     7.081    81.26       100       633
Iowa                                  2           240,000.00             0.04     120,000.00     7.791    81.98     93.98       604
Wisconsin                             2           248,875.00             0.05     124,437.50     7.671    81.44     88.88       633
Nebraska                              1           145,600.00             0.03     145,600.00      7.25       80       100       619
New Mexico                            1           157,250.00             0.03     157,250.00       7.3       85       100       630
South Carolina                        1           123,250.00             0.02     123,250.00      7.25       85        85       626
Vermont                               1           272,000.00             0.05     272,000.00      8.75       80        80       656
Wyoming                               1           158,000.00             0.03     158,000.00      6.55       79        89       633
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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15. PREPAYMENT PENALTY



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
PREPAYMENT PENALTY              LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
No                                  240        62,604,953.14            11.68%    260,853.97      7.51%   81.90%    92.30%      657
Yes                                1655       473,314,283.37            88.32     285,990.50       6.9    81.82     93.42       663
TOTAL:                             1895       535,919,236.51           100.00%    282,806.98      6.97%   81.83%    93.29%      662





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16. PREPAYMENT PENALTY TERM



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
PREPAYMENT PENALTY TERM         LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
0                                   240    $   62,604,953.14            11.68%  $ 260,853.97      7.51%   81.90%    92.30%      657
6                                     7         1,331,263.00             0.25     190,180.43     7.249    80.89      99.2       649
12                                   48        14,588,525.40             2.72     303,927.61     7.348     81.9      95.3       667
24                                1,441       414,662,025.57            77.37     287,759.91     6.877    81.86     93.78       663
36                                  159        42,732,469.40             7.97     268,757.67     6.951    81.43     89.11       660
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





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17. FICO SCORES



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
FICO SCORES                     LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
540 - 559                            48    $   11,329,637.42             2.11%  $ 236,034.11      7.84%   78.43%    79.51%      555
560 - 579                            75        18,718,064.19             3.49     249,574.19     7.553    76.31     76.93       569
580 - 599                            88        21,471,735.38             4.01     243,996.99      7.33    76.83     79.45       588
600 - 619                           230        57,674,654.74            10.76     250,759.37     7.056    82.63      90.9       610
620 - 639                           240        59,538,877.25            11.11     248,078.66     7.053    81.95     91.38       629
640 - 659                           270        75,063,460.35            14.01     278,012.82     6.971    82.51     93.37       649
660 - 679                           347       104,961,559.56            19.59     302,482.88     6.909    82.16     96.81       669
680 - 699                           233        71,516,945.06            13.34     306,939.68     6.845    82.25     96.31       689
700 - 719                           149        47,002,325.65             8.77     315,451.85      6.82    83.07        97       708
720 - 739                           100        32,629,086.74             6.09     326,290.87     6.715    82.83     97.19       729
740 - 759                            59        18,655,872.00             3.48     316,201.22     6.751    81.26     96.04       749
760 - 779                            34        10,529,633.17             1.96     309,695.09     6.824    81.93     96.43       768
780 - 799                            19         5,169,885.00             0.96     272,099.21     6.784    80.42     97.88       788
800 - 819                             3         1,657,500.00             0.31     552,500.00     6.547    85.51     97.88       804
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





--------------------------------------------------------------------------------

18. LOAN TO VALUE



                                                               % OF AGGREGATE
                                                                 PRINCIPAL          AVG
                              NUMBER OF   AGGREGATE CURRENT    BALANCE AS OF      CURRENT     WA GROSS              WA
LOAN TO VALUE                   LOANS     PRINCIPAL BALANCE     CUT-OFF DATE      BALANCE       CPN      WA LTV   COMBLTV   WA FICO
30.01 - 35.00                         3    $      531,000.00             0.10%  $ 177,000.00      6.85%   32.32%    32.32%      622
35.01 - 40.00                         2           278,000.00             0.05     139,000.00     7.252    39.44     39.44       573
40.01 - 45.00                         3           821,000.00             0.15     273,666.67     7.218    43.02     43.02       598
45.01 - 50.00                         9         2,033,869.38             0.38     225,985.49     7.111    47.92     47.92       604
50.01 - 55.00                        12         2,757,599.46             0.51     229,799.96     6.889    53.16     53.16       617
55.01 - 60.00                        15         3,501,799.17             0.65     233,453.28     7.183    57.49     57.49       587
60.01 - 65.00                        16         4,451,805.00             0.83     278,237.81     7.071    62.69     62.97       624
65.01 - 70.00                        49        12,941,783.01             2.41     264,118.02     7.095    69.06     69.34       624
70.01 - 75.00                        50        12,967,239.93             2.42     259,344.80     7.169    73.58     74.96       617
75.01 - 80.00                     1,061       274,822,002.11            51.28     259,021.68     6.868    79.88     96.09       668
80.01 - 85.00                       358       123,029,635.75            22.96     343,658.20     6.891    84.82     96.34       674
85.01 - 90.00                       278        86,170,928.27            16.08     309,967.37      7.28    89.73     92.56       649
90.01 - 95.00                        39        11,612,574.43             2.17     297,758.32     7.469    94.63     94.63       655
TOTAL:                            1,895    $  535,919,236.51           100.00%  $ 282,806.98      6.97%   81.83%    93.29%      662





--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
                         10/21/2005 20:50

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.






                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  4,402 RECORDS
                              BALANCE: 875,331,945

--------------------------------------------------------------------------------

SELECTION CRITERIA: ALL RECORDS
TABLE OF CONTENTS

1. FICO (Aggregate Pool) 1st Lien
2. FICO (Aggregate Pool) 2nd Lien
3. FICO (IO Loans)

--------------------------------------------------------------------------------

1. FICO (AGGREGATE POOL) 1ST LIEN




                                                                                                                       % SECOND LIEN
                                                                                                                       (SIMULTANEOUS
FICO (AGGREGATE POOL) 1ST LIEN     % OF TOTAL DEAL  AVG LTV  MAX LTV  % FULL DOC  % OWNER OCC   % IO     WAC   MARGIN    OR SILENT)
500 - 519                             1,907,974.43    69.05       75       94.48          100       0   9.822   5.826              0
520 - 539                            10,874,574.10    77.34       85       61.76          100       0   8.754   5.765           7.19
540 - 559                            36,610,912.03    80.23       95       77.46        98.16   30.95    8.05   5.734           9.86
560 - 579                            46,671,160.98    81.59       95       72.17        98.37   40.11   7.875   5.734           7.68
580 - 599                            76,644,185.36    80.03       95       73.82        99.15   28.01   7.343   5.678          44.92
600 - 619                            99,804,423.19    82.25       95       72.89        97.69   57.79   7.201   5.698          45.97
620 - 639                            92,421,107.23    81.91       95       59.75         97.4   64.42   7.158   5.749          48.82
640 - 659                           107,882,633.81    81.83       95       42.67        97.07   69.58   7.049   5.746          61.76
660 - 679                           134,914,854.16    82.01       95        16.4        96.97    77.8   6.995   5.712          79.49
680 - 699                            89,423,885.86    81.95       95       11.93        95.91   79.98   6.938   5.741          76.73
700 - 719                            60,127,983.71    82.73       95        10.8        96.32   78.17   6.878   5.744          76.89
720 - 739                            39,768,372.37    82.49       95        9.81        97.12   82.05   6.786   5.707          85.41
740 - 759                            24,300,893.15    82.09       95        8.79        96.48   76.77   6.885   5.816          74.41
760 - 779                            12,108,512.71    82.23       90        17.9        94.68   86.96   6.887   5.787          77.71
780 - 799                             6,158,096.63     80.6       90        5.38          100   83.95   6.803    5.77          94.32
800 - 819                             1,768,116.00    85.79       90       26.11          100   93.74    6.61   5.922          73.89
TOTAL:                              841,387,685.73     81.7       95       41.53        97.32   63.69   7.169   5.729          58.32





--------------------------------------------------------------------------------

2. FICO (AGGREGATE POOL) 2ND LIEN




                                                                                                                       % SECOND LIEN
                                                                                                                       (SIMULTANEOUS
FICO (AGGREGATE POOL) 2ND LIEN     % OF TOTAL DEAL  AVG LTV  MAX LTV  % FULL DOC  % OWNER OCC   % IO     WAC   MARGIN    OR SILENT)
680 - 699                            12,982,369.15    99.75      100       10.13          100       0  10.002       0              0
700 - 719                             8,442,615.65    99.26      100        8.16          100       0   9.997       0              0
720 - 739                             6,148,581.40    99.67      100        5.47          100       0  10.013       0              0
740 - 759                             3,287,760.09    99.84      100        5.63          100       0   9.992       0              0
760 - 779                             1,688,348.30     99.9      100       10.71          100       0   9.877       0              0
780 - 799                             1,332,109.11      100      100        3.79          100       0   9.974       0              0
800 - 819                                62,475.90      100      100           0          100       0   10.64       0              0
TOTAL:                               33,944,259.60    99.64      100        8.12          100       0   9.996       0              0





--------------------------------------------------------------------------------

3. FICO (IO LOANS)




                                                                                                                       % SECOND LIEN
                                                                                                                       (SIMULTANEOUS
FICO (IO LOANS)                    % OF TOTAL DEAL  AVG LTV  MAX LTV  % FULL DOC  % OWNER OCC   % IO     WAC   MARGIN    OR SILENT)
540 - 559                            11,329,637.42    78.43       90       68.22        98.03     100   7.844   5.793           8.84
560 - 579                            18,718,064.19    76.31       90       65.23        98.93     100   7.553   5.742           6.13
580 - 599                            21,471,735.38    76.83       95       59.36        98.34     100    7.33   5.717          14.88
600 - 619                            57,674,654.74    82.63       95        73.4        97.59     100   7.056   5.714          46.45
620 - 639                            59,538,877.25    81.95       95       55.04        98.07     100   7.053    5.77          51.83
640 - 659                            75,063,460.35    82.51       95       39.26        97.75     100   6.971   5.752          63.35
660 - 679                           104,961,559.56    82.16       95       15.19        97.32     100   6.909   5.746          83.86
680 - 699                            71,516,945.06    82.25       95       10.66        96.92     100   6.845   5.772           79.9
700 - 719                            47,002,325.65    83.07       95        9.98        97.14     100    6.82   5.769           81.4
720 - 739                            32,629,086.74    82.83       95        7.92        97.06     100   6.715   5.752          85.56
740 - 759                            18,655,872.00    81.26       90        6.98        95.84     100   6.751   5.811          84.25
760 - 779                            10,529,633.17    81.93       90       19.03         97.3     100   6.824   5.768          84.27
780 - 799                             5,169,885.00    80.42       90        6.41          100     100   6.784    5.84          93.23
800 - 819                             1,657,500.00    85.51       90       21.18          100     100   6.547     5.9          78.82
TOTAL:                              535,919,236.51    81.83       95       32.11         97.5     100   6.971   5.756           65.8





--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com

                 10/21/2005 20:50

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.

Asset Backed Securities Portfolio Analysis
Fieldstone Mortgage Company
Mortgage Portfolio 2005-3
4,402 records
Balance: 875,331,945

Selection Criteria: All records
Table of Contents

Summary Strats
Range of Outstanding Mortgage Loan Principal Balances
Range of Mortgage Rates
Range of Credit Scores
Range of Original Loan-to-Value Ratios
Range of Combined Loan-to-Value Ratios
Documentation Summary
Loan Purpose
Occupancy Types
Types of Mortgaged Property Types
State Distribution of Mortgaged Properties
Amortization Type
Range of Gross Margins
Remaining Term To Stated Maturity

1. Summary Strats

Percentage Piggy Backs: 3.48%
Percentage Silent Seconds: 56.06%

Top

2. Range of Outstanding Mortgage Loan Principal Balances

Range of Outstanding Mortgage Loan Principal Balances	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
$50,000.00 or less	318	$11,150,787.000	1.27%	9.846	194.596	703	24.09%	96.75	98.65%	94.18%	40.47
$50,000.01 to $75,000.00	434	27,329,666.000	3.12	8.824	296.566	648	52.71	93.29	96.41	48.31	39.74
$75,000.01 to $100,000.00	427	37,754,117.500	4.31	8.232	322.670	634	63.68	93.23	95.44	29.43	39.96
$100,000.01 to $125,000.00	466	52,579,961.450	6.00	7.736	340.475	636	61.67	93.79	97.51	24.40	40.08
$125,000.01 to $150,000.00	407	55,994,767.000	6.39	7.479	352.077	632	66.34	92.90	96.55	13.01	39.88
$150,000.01 to $175,000.00	362	58,705,334.600	6.70	7.331	356.497	633	64.45	91.84	98.05	10.77	41.56
$175,000.01 to $200,000.00	301	56,433,893.400	6.44	7.275	357.998	636	54.25	90.98	95.99	5.62	40.79
$200,000.01 to $225,000.00	230	48,852,496.600	5.58	7.255	358.316	642	52.29	91.78	96.11	7.38	41.56
$225,000.01 to $250,000.00	184	43,796,851.000	5.00	7.289	357.812	641	42.42	91.04	97.79	6.05	42.27
$250,000.01 to $275,000.00	200	52,429,053.000	5.99	7.115	358.341	650	39.15	91.86	97.02	3.49	43.02
$275,000.01 to $300,000.00	136	39,107,175.000	4.47	7.217	358.368	643	38.24	90.62	96.25	7.41	42.65
$300,000.01 to $325,000.00	175	54,464,624.000	6.22	6.975	358.476	653	32.59	92.75	100.00	6.84	43.01
$325,000.01 to $350,000.00	118	39,829,515.000	4.55	6.941	358.401	653	29.48	91.27	100.00	9.31	42.83
$350,000.01 to $375,000.00	128	46,441,318.000	5.30	6.978	356.966	653	31.21	92.18	97.64	3.09	42.43
$375,000.01 to $400,000.00	103	39,971,379.000	4.56	6.928	358.419	655	29.15	91.37	98.06	3.77	42.98
$400,000.01 to $425,000.00	77	31,811,513.600	3.63	7.006	358.455	663	28.51	91.54	94.78	5.21	43.85
$425,000.01 to $450,000.00	65	28,533,140.000	3.26	7.140	358.446	659	18.45	92.69	100.00	3.04	42.88
$450,000.01 to $475,000.00	45	20,883,357.000	2.38	6.813	358.267	670	11.21	94.92	95.52	0.00	44.63
$475,000.01 to $500,000.00	62	30,267,320.000	3.46	6.931	358.416	661	16.20	91.87	95.05	6.59	42.10
$500,000.01 to $525,000.00	32	16,365,940.000	1.87	6.797	358.281	676	6.26	95.52	100.00	3.20	44.34
$525,000.01 to $550,000.00	23	12,385,285.000	1.41	6.880	358.520	663	8.64	92.57	100.00	8.67	40.89
$550,000.01 to $575,000.00	26	14,622,564.000	1.67	6.851	358.388	673	11.49	94.49	100.00	3.85	43.63
$575,000.01 to $600,000.00	18	10,621,250.000	1.21	6.942	358.723	673	11.04	90.24	94.35	5.45	45.18
$600,000.01 to $625,000.00	11	6,743,184.000	0.77	6.715	357.638	672	36.08	93.65	90.97	0.00	35.88
$625,000.01 to $650,000.00	19	12,129,825.000	1.39	6.850	358.577	676	15.80	95.51	100.00	5.26	42.69
$650,000.01 to $675,000.00	3	1,956,200.000	0.22	6.775	358.667	689	0.00	96.66	100.00	0.00	45.24
$675,000.01 to $700,000.00	8	5,499,920.000	0.63	6.858	358.368	655	0.00	97.14	100.00	0.00	38.62
$700,000.01 to $725,000.00	8	5,720,250.000	0.65	7.008	358.623	731	0.00	92.36	100.00	0.00	44.03
$725,000.01 to $750,000.00	5	3,709,750.000	0.42	6.924	358.407	704	40.15	92.15	100.00	0.00	40.37
$775,000.01 to $800,000.00	3	2,383,400.000	0.27	6.846	358.329	682	0.00	96.69	100.00	0.00	34.42
$800,000.01 to $825,000.00	2	1,635,000.000	0.19	6.826	358.495	664	50.46	95.05	100.00	0.00	36.68
$825,000.01 to $850,000.00	2	1,690,000.000	0.19	6.700	358.000	686	50.30	82.51	100.00	49.70	38.28
$850,000.01 to $875,000.00	1	867,000.000	0.10	7.250	359.000	697	100.00	100.00	100.00	0.00	48.03
$875,000.01 to $900,000.00	1	879,200.000	0.10	6.500	359.000	615	100.00	80.00	100.00	0.00	47.71
$975,000.01 to $1,000,000.00	1	1,000,000.000	0.11	6.850	357.000	669	100.00	100.00	100.00	0.00	48.96
$1,000,000.01 >=	1	1,200,000.000	0.14	6.500	357.000	648	100.00	70.00	100.00	0.00	46.32
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

Top

3. Range of Mortgage Rates

Range of Mortgage Rates	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
6.001% to 6.500%	595	$172,301,685.600	19.67%	6.387	358.126	669	44.82%	94.42	99.56%	4.91%	43.18
6.501% to 7.000%	1160	290,924,070.800	33.22	6.812	358.347	660	37.64	93.45	98.45	6.13	41.98
7.001% to 7.500%	759	162,664,259.000	18.57	7.302	358.185	648	40.20	92.04	96.42	8.50	41.78
7.501% to 8.000%	654	126,437,585.000	14.44	7.779	358.259	627	38.77	89.39	95.78	7.62	41.26
8.001% to 8.500%	255	42,155,132.200	4.81	8.300	355.452	603	48.96	88.64	95.79	13.42	40.27
8.501% to 9.000%	245	29,612,060.400	3.38	8.785	350.370	602	53.45	87.76	90.16	14.44	39.29
9.001% to 9.500%	187	15,742,427.650	1.80	9.367	291.768	624	49.45	88.92	92.94	44.39	41.33
9.501% to 10.000%	285	20,691,397.500	2.36	9.890	230.720	671	22.90	95.00	98.30	74.17	42.90
10.001% to 10.500%	180	10,563,395.000	1.21	10.291	216.292	675	16.81	94.70	100.00	79.47	42.29
10.501% to 11.000%	82	4,653,024.000	0.53	10.662	203.153	688	9.31	95.97	100.00	88.08	40.55
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

Top

4. Range of Credit Scores

Range of Credit Scores	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
501 to 525	33	$5,482,090.000	0.63%	8.856	358.580	518	81.21%	72.72	100.00%	1.57%	44.41
526 to 550	139	22,103,019.500	2.52	8.354	356.677	541	73.16	80.23	98.26	7.14	39.85
551 to 575	343	61,008,441.000	6.97	7.952	357.891	563	72.88	82.04	98.44	5.86	41.43
576 to 600	518	89,998,511.600	10.28	7.358	358.241	589	75.09	88.47	98.86	10.07	41.40
601 to 625	622	124,513,501.650	14.22	7.201	358.154	613	68.17	90.08	97.80	9.51	40.32
626 to 650	599	125,475,418.400	14.33	7.103	357.403	638	50.09	91.94	97.49	9.94	41.05
651 to 675	606	154,123,342.400	17.60	7.010	358.251	664	25.98	95.41	96.60	7.78	42.65
676 to 700	693	133,065,577.600	15.19	7.262	339.656	687	11.60	96.29	96.82	14.48	42.99
701 to 725	425	79,494,105.000	9.08	7.243	336.114	712	9.66	96.69	97.04	15.11	43.06
726 to 750	236	45,637,920.000	5.21	7.198	335.167	736	10.21	96.69	96.10	16.78	42.83
751 to 775	119	23,153,845.000	2.64	7.326	337.639	761	13.35	96.00	96.87	13.18	42.80
776 to 800	64	9,858,649.000	1.13	7.357	326.837	785	6.29	98.11	100.00	18.62	42.14
801 to 825	5	1,830,616.000	0.21	6.747	352.917	805	25.22	97.48	100.00	3.41	41.56
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

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5. Range of Original Loan-to-Value Ratios

Range of Original Loan-to-Value Ratios	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
50.00% or less	46	$6,927,580.000	0.79%	7.324	353.171	602	62.19%	42.40	94.56%	21.49%	39.10
50.01% to 55.00%	22	4,083,850.000	0.47	6.935	355.719	606	53.90	53.09	98.78	10.32	37.44
55.01% to 60.00%	42	7,426,500.000	0.85	7.292	355.773	598	73.37	58.76	90.86	24.33	40.20
60.01% to 65.00%	41	9,175,720.000	1.05	7.345	358.375	609	59.27	63.94	87.08	7.58	43.08
65.01% to 70.00%	115	24,033,503.000	2.74	7.426	358.389	613	40.78	69.57	90.54	12.84	40.25
70.01% to 75.00%	197	30,706,768.000	3.51	7.539	357.569	608	50.12	77.85	92.91	12.78	40.52
75.01% to 80.00%	1990	420,020,762.400	47.96	6.986	358.139	656	38.92	95.59	96.68	7.46	42.15
80.01% to 85.00%	580	163,226,398.500	18.64	7.071	357.958	659	29.45	94.77	99.11	5.29	42.69
85.01% to 90.00%	622	144,790,973.600	16.53	7.501	358.073	636	50.81	91.84	99.70	5.33	40.88
90.01% to 95.00%	186	32,817,711.650	3.75	8.040	351.789	630	66.92	94.79	100.00	8.77	41.77
95.01% to 100.00%	561	32,535,270.000	3.72	9.991	178.494	715	8.27	99.98	100.00	100.00	43.34
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

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6. Range of Combined Loan-to-Value Ratios

Range of Combined Loan-to-Value Ratios	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
<= 50.00%	45	$6,840,580.000	0.78%	7.303	353.109	602	61.71%	42.27	94.49%	20.49%	39.12
50.01% - 55.00%	23	4,170,850.000	0.48	6.978	355.767	604	54.86	53.08	98.80	12.19	37.44
55.01% - 60.00%	40	7,253,300.000	0.83	7.276	355.710	598	74.16	58.06	90.64	23.49	40.03
60.01% - 65.00%	39	7,872,315.000	0.90	7.475	358.602	602	53.86	62.88	86.26	8.84	42.84
65.01% - 70.00%	107	24,499,144.000	2.80	7.345	358.317	615	42.63	68.96	90.72	12.60	40.48
70.01% - 75.00%	127	25,562,820.000	2.92	7.559	357.372	601	47.51	73.73	91.07	12.66	40.79
75.01% - 80.00%	354	81,292,486.000	9.28	7.378	357.817	622	43.31	79.49	84.05	11.91	40.34
80.01% - 85.00%	230	51,672,827.000	5.90	7.446	357.480	618	54.43	84.56	95.50	9.16	41.73
85.01% - 90.00%	522	123,079,165.600	14.05	7.517	358.001	631	50.65	89.69	99.65	7.09	40.27
90.01% - 95.00%	282	59,372,211.000	6.78	7.609	354.777	646	50.76	94.67	99.82	6.54	41.41
95.01% - 100.00%	2633	484,129,338.550	55.28	7.123	346.136	671	32.60	99.94	100.00	11.74	42.89
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

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7. Documentation Summary

Documentation Summary	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
12 Month Bank Statements	203	$49,910,879.800	5.70%	7.255	356.282	623	0.00%	91.54	95.14%	12.04%	34.89
24 Month Bank Statements	66	18,389,200.650	2.10	7.255	356.618	618	0.00	90.02	94.33	12.43	32.78
Full Documentation	2089	352,418,035.700	40.24	7.232	356.487	616	100.00	90.46	98.13	12.33	42.18
Limited Documentation	17	3,912,738.000	0.45	7.254	350.248	653	0.00	94.82	100.00	13.06	37.56
Stated Income Self-Employed	668	168,662,226.600	19.26	7.247	349.144	674	0.00	93.25	96.09	8.80	41.38
Stated Income Wage Earner	1359	282,451,956.400	32.25	7.361	344.296	685	0.00	94.44	97.90	9.70	43.79
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

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8. Loan Purpose

Loan Purpose	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
Purchase	2819	$527,060,696.550	60.18%	7.233	347.835	666	31.23%	97.14	98.54%	10.60%	42.63
Refinance - Cashout	373	85,665,483.000	9.78	7.311	355.705	624	52.27	84.20	96.45	12.44	40.32
Refinance - Rate/Term	1210	263,018,857.600	30.03	7.359	356.153	627	54.37	85.41	95.50	10.63	40.99
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

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9. Occupancy Types

Occupancy Types	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
Investment Property	122	$22,569,038.000	2.58%	7.725	358.462	663	29.16%	76.65	0.00%	8.36%	39.61
Primary Home	4280	853,175,999.150	97.42	7.267	350.908	650	40.53	92.77	100.00	10.86	41.97
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

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10. Types of Mortgaged Property Types

Types of Mortgaged Property Types	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
Condominium	344	$61,556,489.000	7.03%	7.239	349.380	660	37.49%	95.10	98.23%	7.98%	43.34
Manufactured Home	1	405,000.000	0.05	6.675	359.000	637	0.00	69.83	100.00	0.00	42.24
Planned Unit Development	718	149,755,984.400	17.10	7.239	353.259	645	46.90	92.45	97.75	10.23	41.51
Single Family Attached	36	4,938,850.000	0.56	7.450	350.582	650	51.31	93.06	96.63	15.67	40.14
Single Family Detached	3059	593,158,052.750	67.73	7.288	350.852	648	40.69	92.27	97.99	11.26	41.78
Townhouse	16	2,424,501.000	0.28	7.399	352.826	616	68.65	90.57	91.18	6.35	42.00
Two-to-Four Family	228	63,506,160.000	7.25	7.306	349.965	676	21.23	90.43	90.82	10.29	42.82
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

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11. State Distribution of Mortgaged Properties

State Distribution of Mortgaged Properties	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
Arizona	312	$59,741,689.600	6.82%	7.326	353.407	636	58.13%	90.11	96.89%	8.10%	41.52
Arkansas	11	1,127,585.000	0.13	8.255	358.353	604	65.94	94.28	100.00	29.77	40.68
California	1168	353,037,234.600	40.31	6.968	349.365	668	22.10	92.55	97.99	8.96	43.80
Colorado	176	26,898,163.000	3.07	7.207	350.159	650	55.29	95.43	95.73	10.12	40.72
Connecticut	4	727,100.000	0.08	7.704	358.900	608	16.83	94.07	100.00	0.00	35.84
Delaware	5	826,050.000	0.09	7.941	358.620	570	83.84	89.73	100.00	10.29	49.46
Florida	356	64,786,346.000	7.40	7.404	352.635	641	36.98	90.95	95.99	9.30	40.18
Georgia	122	16,475,254.800	1.88	7.349	353.336	629	60.75	94.58	97.63	16.95	38.52
Idaho	30	4,167,725.000	0.48	7.211	358.592	615	51.71	92.47	94.38	4.39	35.05
Illinois	396	70,668,149.000	8.07	7.739	349.195	650	40.93	92.77	98.09	8.05	41.64
Indiana	28	2,530,502.000	0.29	8.199	353.609	622	75.71	94.86	100.00	12.78	39.29
Iowa	82	7,787,064.000	0.89	8.358	354.709	614	77.96	92.21	98.49	11.58	40.34
Kansas	95	10,080,037.500	1.15	7.959	354.583	625	73.51	94.01	96.58	20.09	38.88
Kentucky	10	961,615.000	0.11	8.187	353.927	592	88.07	96.06	100.00	2.39	34.73
Louisiana	3	223,000.000	0.03	7.882	358.242	615	100.00	97.44	100.00	0.00	40.25
Maine	9	1,264,683.000	0.14	7.982	354.470	612	50.26	87.69	100.00	13.35	38.80
Maryland	89	21,273,172.000	2.43	7.549	353.016	643	45.27	90.17	95.29	6.67	43.15
Massachusetts	100	24,277,910.000	2.77	7.599	352.453	637	31.36	89.13	97.78	7.29	39.60
Michigan	75	10,489,064.000	1.20	7.782	353.758	631	55.86	93.35	97.26	6.70	42.05
Minnesota	61	9,880,413.000	1.13	7.099	349.901	653	62.24	96.11	100.00	7.55	43.53
Mississippi	4	484,200.000	0.06	7.436	357.911	624	100.00	94.86	100.00	0.00	41.94
Missouri	158	17,976,034.650	2.05	8.002	357.536	612	65.27	93.61	97.86	4.81	38.74
Nebraska	25	2,197,160.000	0.25	7.785	339.920	631	77.91	92.43	100.00	29.62	42.18
Nevada	69	12,913,548.000	1.47	7.135	351.050	635	70.79	89.64	96.10	10.96	41.22
New Hampshire	22	4,163,325.000	0.48	7.388	350.209	625	38.65	91.98	100.00	4.38	41.18
New Jersey	28	6,448,300.000	0.74	7.889	352.594	639	32.39	87.37	98.19	3.26	40.80
New Mexico	9	1,827,954.000	0.21	7.544	357.915	611	100.00	90.17	100.00	0.00	33.18
North Carolina	11	1,340,668.000	0.15	7.370	359.000	623	78.12	93.68	100.00	18.83	37.96
North Dakota	1	66,500.000	0.01	8.900	359.000	614	100.00	95.00	100.00	0.00	47.75
Ohio	3	460,000.000	0.05	7.929	359.266	648	54.33	81.30	54.33	45.67	43.11
Oklahoma	17	2,061,302.000	0.24	7.590	358.047	604	83.46	94.48	100.00	6.02	34.38
Oregon	64	10,857,594.000	1.24	7.063	352.937	637	53.83	93.42	95.76	26.77	39.24
Pennsylvania	20	3,070,965.000	0.35	7.452	342.776	621	56.75	89.71	100.00	9.56	36.84
Rhode Island	19	3,575,800.000	0.41	6.958	352.160	659	42.40	91.26	100.00	8.49	42.85
South Carolina	7	988,740.000	0.11	7.175	358.622	620	56.82	87.49	100.00	11.83	45.15
South Dakota	1	111,200.000	0.01	7.000	358.000	586	100.00	100.00	100.00	0.00	36.31
Tennessee	38	3,932,975.000	0.45	8.189	353.933	613	68.51	95.26	92.94	27.64	44.14
Texas	337	35,342,758.000	4.04	7.444	352.820	635	63.89	95.57	98.22	32.38	40.11
Utah	35	4,651,967.000	0.53	7.618	351.360	639	61.64	94.03	100.00	7.45	38.11
Vermont	3	550,550.000	0.06	8.628	358.506	639	28.11	85.06	50.58	0.00	45.39
Washington	294	52,951,596.000	6.05	7.249	352.721	640	58.67	92.01	95.40	16.07	39.40
Virginia	82	19,507,705.000	2.23	7.351	348.752	652	42.22	92.50	98.39	13.37	43.19
West Virginia	4	799,725.000	0.09	8.064	358.825	617	100.00	88.70	100.00	73.21	37.66
Wisconsin	17	2,007,213.000	0.23	7.800	355.812	609	85.52	93.84	100.00	1.30	46.04
Wyoming	2	234,500.000	0.03	6.693	358.674	636	100.00	92.58	100.00	0.00	42.47
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

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12. Amortization Type

Amortization Type	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
30/15 Balloon	590	$33,929,722.000	3.87%	9.990	178.492	715	8.33%	99.64	100.00%	100.00%	43.31
5 Year IO	1895	535,925,948.000	61.20	6.971	358.417	662	32.11	93.29	97.50	1.74	42.70
Fully Amortizing	1917	305,889,367.150	34.93	7.517	357.428	622	58.03	89.91	96.99	16.76	40.36
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

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13. Range of Gross Margins

Range of Gross Margins	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
2.501% to 3.000%	4	$569,200.000	0.07%	7.400	359.000	624	100.00%	90.59	100.00%	0.00%	40.71
3.001% to 3.500%	5	697,520.000	0.09	7.373	358.836	663	29.24	100.00	100.00	0.00	45.77
3.501% to 4.000%	130	21,743,786.000	2.78	7.387	358.675	656	45.81	93.55	96.45	0.00	40.16
4.001% to 4.500%	5	959,170.000	0.12	7.245	357.095	646	28.27	90.01	100.00	0.00	43.95
4.501% to 5.000%	2	869,915.000	0.11	6.570	357.000	678	0.00	94.35	100.00	0.00	48.23
5.001% to 5.500%	754	193,075,395.600	24.72	7.094	358.265	631	53.97	91.64	99.63	0.00	42.22
5.501% to 6.000%	1779	443,565,793.400	56.78	7.060	358.452	657	31.66	93.11	99.41	0.00	42.44
6.001% to 6.500%	763	119,598,255.150	15.31	7.557	358.470	645	44.45	90.89	86.13	0.00	40.34
6.501% to 7.000%	1	115,855.000	0.01	6.850	359.000	634	100.00	100.00	100.00	0.00	35.16
Total:	3443	$781,194,890.150	100.00%	7.154	358.412	648	39.54%	92.42	97.35%	0.00%	42.01

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14. Remaining Term To Stated Maturity

Remaining Term To Stated Maturity	Number of Loans	Principal Balance at Origination	% of Balance (Based on Original Principal)	wa Coupon	wa Remaining Term	FICO	% Full Doc	CLTV	% Owner Occupied	% Fixed Rate	DTI
169 - 180	601	$34,995,710.000	4.00%	9.938	178.490	712	9.49%	99.32	100.00%	100.00%	43.26
229 - 240	7	899,250.000	0.10	7.810	238.591	630	67.02	65.38	100.00	100.00	34.21
349 - 360	3794	839,850,077.150	95.90	7.167	358.413	648	41.49	92.09	97.31	6.98	41.86
Total:	4402	$875,745,037.150	100.00%	7.278	351.103	650	40.23%	92.35	97.42%	10.79%	41.91

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Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
Oct 26, 2005 09:38

Disclaimer:This material is provided to you solely for informational purposes, is intended for your use only and does not constitute an offer or commitment, a solicitation of an offer or commitment, or any advice or recommendation, to enter into or conclude any transaction (whether on the indicative terms shown or otherwise). This material has been prepared by CSFB based on assumptions and parameters determined by it in good faith. It is important that you (recipient) understand that those assumptions and parameters are not the only ones that might reasonably have been selected or that could apply in connection with the preparation of these materials or an assessment of the transaction described above. A variety of other or additional assumptions or parameters, or other market factors and other considerations, could result in different contemporaneous good faith analyses or assessment of the transaction described above. Past performance should not be taken as an indication or guarantee of future performance, and no representation or warranty, express or implied is made regarding future performance. Opinions and estimates may be changed without notice. The information set forth above has been obtained from or based upon sources believed by CSFB to be reliable, but CSFB does not represent or warrant its accuracy or completeness. This material does not purport to contain all of the information that an interested party may desire. In all cases, interested parties should conduct their own investigation and analysis of the transaction(s) described in these materials and of the data set forth in them. Each person receiving these materials should make an independent assessment of the merits of pursuing a transaction described in these materials and should consult their own professional advisors. CSFB may, from time to time, participate or invest in other financing transactions with the issuers of the securities referred to herein, perform services for or solicit business from such issuers, and/ or have a position or effect transactions in the securities or derivatives thereof. Structured securities are complex instruments, typically involve a high degree of risk and are intended for sale only to sophisticated investors who are capable of understanding and assuming the risks involved. The market value of any structured security may be affected by changes in economic, financial and political factors (including, but not limited to, spot and forward interest and exchange rates), time to maturity, market conditions and volatility and the credit quality of any issuer or reference issuer. Any investor interested in purchasing a structured product should conduct its own investigation and analysis of the product and consult with its own professional advisers as to the risks involved in making such a purchase.

                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  2,213 RECORDS
                              BALANCE: 490,705,885

--------------------------------------------------------------------------------

SELECTION CRITERIA: SILENT SECONDS
TABLE OF CONTENTS

1. Collateral Aggregate Summary
2. Maturity Date
3. Lien Position
4. Occupancy
5. Loan Type
6. Year Of Origination
7. Loan Purpose
8. Property Type
9. Lien
10. Range of Mortgage Rates
11. Original Term
12. Remaining Term To Stated Maturity
13. Range of Outstanding Mortgage Loan Principal Balances
14. Range of Outstanding Mortgage Loan Principal Balances
15. Product Type
16. Amortization Type
17. Loan Program
18. State Distribution of Mortgaged Properties
19. Range of Original Loan-to-Value Ratios
20. Loan Purpose
21. Types of Mortgaged Property Types
22. Documentation Summary
23. Occupancy Types
24. Mortgage Loan Age (Months)
25. Original Prepayment Penalty Term
26. Range of Credit Scores
27. Credit Grade Summary
28. Range of Gross Margins
29. Range of Maximum Mortgage Rates
30. Next Rate Adjustment Date
31. Zip Code
32. Initial Interest Rate Cap
33. Periodic Rate Cap
34. Min Mortgage Rate
35. Months to Roll

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1. COLLATERAL AGGREGATE SUMMARY

Aggregate Outstanding Principal Balance: $490,705,885.
Aggregate Original Principal Balance: $490,889,220.
Number Of Mortgage Loans: 2,213




--------------------------------------------------------------------------------

2. MATURITY DATE

Earliest: 20200801
Latest: 20351101




--------------------------------------------------------------------------------

3. LIEN POSITION



LIEN POSITION                                          PERCENT OF MORTGAGE POOL
First Lien                                                               100.00%
TOTAL:                                                                   100.00%





--------------------------------------------------------------------------------

4. OCCUPANCY



OCCUPANCY                                              PERCENT OF MORTGAGE POOL
Investment Property                                                        0.22%
Primary Home                                                              99.78
TOTAL:                                                                   100.00%





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5. LOAN TYPE



LOAN TYPE                                              PERCENT OF MORTGAGE POOL
ARM                                                                       94.51%
FIXED                                                                      5.49
TOTAL:                                                                   100.00%





--------------------------------------------------------------------------------

6. YEAR OF ORIGINATION



YEAR OF ORIGINATION                                    PERCENT OF MORTGAGE POOL
2005                                                                     100.00%
TOTAL:                                                                   100.00%





--------------------------------------------------------------------------------

7. LOAN PURPOSE



LOAN PURPOSE                                           PERCENT OF MORTGAGE POOL
Purchase                                                                  82.75%
Refinance - Cashout                                                        3.43
Refinance - Rate/Term                                                     13.82
TOTAL:                                                                   100.00%





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8. PROPERTY TYPE



PROPERTY TYPE                                          PERCENT OF MORTGAGE POOL
Condominium                                                                8.75%
Planned Unit Development                                                  17.24
Single Family Attached                                                     0.57
Single Family Detached                                                    66.56
Townhouse                                                                  0.12
Two-to-Four Family                                                         6.76
TOTAL:                                                                   100.00%





--------------------------------------------------------------------------------

9. LIEN



                                              AGGREGATE
                               NUMBER OF      PRINCIPAL      PERCENT OF     WEIGHTED
                               MORTGAGE        BALANCE        MORTGAGE      AVERAGE
LIEN                             LOANS       OUTSTANDING        POOL         COUPON
1                                  2,213   $490,705,885.25       100.00%        6.93%
TOTAL:                             2,213   $490,705,885.25       100.00%        6.93%


                                WEIGHTED        AVERAGE       WEIGHTED
                                AVERAGE        PRINCIPAL       AVERAGE        PERCENT
                                 CREDIT         BALANCE       ORIGINAL          FULL
LIEN                             SCORE        OUTSTANDING        LTV       DOCUMENTATION
1                                    667      $221,737.86        81.55%            34.15%
TOTAL:                               667      $221,737.86        81.55%            34.15%





--------------------------------------------------------------------------------

10. RANGE OF MORTGAGE RATES



                                              AGGREGATE
                               NUMBER OF      PRINCIPAL      PERCENT OF     WEIGHTED
                               MORTGAGE        BALANCE        MORTGAGE      AVERAGE
RANGE OF MORTGAGE RETURNS        LOANS       OUTSTANDING        POOL         COUPON
6.001% to 6.500%                     471   $134,126,916.34        27.33%        6.39%
6.501% to 7.000%                     846    202,803,170.47        41.33        6.803
7.001% to 7.500%                     470     91,731,426.75        18.69         7.29
7.501% to 8.000%                     285     44,898,626.17         9.15        7.744
8.001% to 8.500%                      71      9,472,279.14         1.93        8.277
8.501% to 9.000%                      38      4,781,584.99         0.97        8.747
9.001% to 9.500%                      17      1,501,817.65         0.31        9.266
9.501% to 10.000%                     11        842,268.19         0.17        9.795
10.001% to 10.500%                     3        399,103.42         0.08       10.458
10.501% to 11.000%                     1        148,692.15         0.03         10.6
TOTAL:                             2,213   $490,705,885.25       100.00%        6.93%


                               WEIGHTED        AVERAGE        WEIGHTED
                                AVERAGE       PRINCIPAL        AVERAGE        PERCENT
                                CREDIT         BALANCE        ORIGINAL          FULL
RANGE OF MORTGAGE RETURNS        SCORE       OUTSTANDING         LTV       DOCUMENTATION
6.001% to 6.500%                    675      $284,770.52         81.32%            37.94%
6.501% to 7.000%                    671       239,720.06         81.63             32.33
7.001% to 7.500%                    663       195,173.25         81.37             31.27
7.501% to 8.000%                    655       157,539.04         81.51             30.99
8.001% to 8.500%                    641       133,412.38         82.33             31.86
8.501% to 9.000%                    601       125,831.18         84.98             61.03
9.001% to 9.500%                    566        88,342.21         86.45             93.34
9.501% to 10.000%                   560        76,569.84          88.4             92.52
10.001% to 10.500%                  539       133,034.47         74.85               100
10.501% to 11.000%                  549       148,692.15         84.52                 0
TOTAL:                              667      $221,737.86         81.55%            34.15%


Maximum Mortgage Rate: 10.600%
Minimum Mortgage Rate: 6.150%
WA Mortgage Rate: 6.930%




--------------------------------------------------------------------------------

11. ORIGINAL TERM



                                              AGGREGATE
                               NUMBER OF      PRINCIPAL      PERCENT OF    WEIGHTED
                               MORTGAGE        BALANCE        MORTGAGE     AVERAGE
ORIGINAL TERM                    LOANS       OUTSTANDING        POOL        COUPON
169 - 180                              3   $    529,014.64         0.11%       7.99%
349 - 360                          2,210    490,176,870.61        99.89       6.929
TOTAL:                             2,213   $490,705,885.25       100.00%       6.93%


                                WEIGHTED       AVERAGE        WEIGHTED
                                AVERAGE       PRINCIPAL       AVERAGE           PERCENT
                                 CREDIT        BALANCE        ORIGINAL           FULL
ORIGINAL TERM                    SCORE       OUTSTANDING        LTV          DOCUMENTATION
169 - 180                            648       $176,338.21        80.69%             33.65%
349 - 360                            667        221,799.49        81.56              34.15
TOTAL:                               667       $221,737.86        81.55%             34.15%


Maximum Original Term: 360
Minimum Original Term: 180
WA Original Term: 360




--------------------------------------------------------------------------------

12. REMAINING TERM TO STATED MATURITY



                                                   AGGREGATE
                                    NUMBER OF      PRINCIPAL        PERCENT OF     WEIGHTED
                                    MORTGAGE        BALANCE          MORTGAGE       AVERAGE
REMAINING TERM TO STATED MATURITY     LOANS       OUTSTANDING          POOL         COUPON
169 - 180                                   3   $    529,014.64          0.11%        7.99%
349 - 360                               2,210    490,176,870.61         99.89        6.929
TOTAL:                                  2,213   $490,705,885.25        100.00%        6.93%


                                    WEIGHTED        AVERAGE       WEIGHTED
                                    AVERAGE        PRINCIPAL       AVERAGE          PERCENT
                                     CREDIT         BALANCE       ORIGINAL           FULL
REMAINING TERM TO STATED MATURITY    SCORE        OUTSTANDING        LTV         DOCUMENTATION
169 - 180                                648       $176,338.21       80.69%              33.65%
349 - 360                                667        221,799.49       81.56               34.15
TOTAL:                                   667       $221,737.86       81.55%              34.15%


Maximum Remaining Term: 360
Minimum Remaining Term: 177
WA Remaining Term: 358




--------------------------------------------------------------------------------

13. RANGE OF OUTSTANDING MORTGAGE LOAN PRINCIPAL BALANCES



                                                   AGGREGATE
RANGE OF OUTSTANDING              NUMBER OF        PRINCIPAL      PERCENT OF     WEIGHTED
MORTGAGE LOAN                      MORTGAGE         BALANCE        MORTGAGE       AVERAGE
PRINCIPAL BALANCES                  LOANS         OUTSTANDING        POOL         COUPON
$50,000.00 or less                        5    $    249,732.08        0.05%         8.06%
$50,000.01 to $100,000.00               353      27,622,205.04        5.63          7.53
$100,000.01 to $150,000.00              501      62,276,827.93       12.69          7.13
$150,000.01 to $200,000.00              389      67,481,641.11       13.75         7.029
$200,000.01 to $250,000.00              232      51,714,341.53       10.54         7.023
$250,000.01 to $300,000.00              185      50,039,911.54        10.2         6.903
$300,000.01 to $350,000.00              171      54,846,139.12       11.18         6.761
$350,000.01 to $400,000.00              124      46,392,240.23        9.45         6.744
$400,000.01 to $450,000.00               78      33,093,382.26        6.74         6.843
$450,000.01 to $500,000.00               66      31,340,781.77        6.39         6.717
$500,000.01 to $550,000.00               37      19,271,001.62        3.93         6.726
$550,000.01 to $600,000.00               29      16,524,704.07        3.37         6.795
$600,000.01 to $650,000.00               21      13,193,122.33        2.69          6.68
$650,000.01 to $700,000.00                9       6,122,624.76        1.25         6.822
$700,000.01 to $750,000.00                7       5,053,500.00        1.03         6.727
$750,000.01 to $800,000.00                2       1,595,000.00        0.33         6.775
$800,000.01 to $850,000.00                1         825,000.00        0.17           6.9
$850,000.01 to $900,000.00                1         867,000.00        0.18          7.25
$950,000.01 to $1,000,000.00              1       1,000,000.00         0.2          6.85
$1,000,000.01 >=                          1       1,196,729.87        0.24           6.5
TOTAL:                                2,213    $490,705,885.25      100.00%         6.93%


                                  WEIGHTED         AVERAGE        WEIGHTED
RANGE OF OUTSTANDING              AVERAGE         PRINCIPAL        AVERAGE      PERCENT
MORTGAGE LOAN                      CREDIT          BALANCE        ORIGINAL       FULL
PRINCIPAL BALANCES                 SCORE         OUTSTANDING         LTV     DOCUMENTATION
$50,000.00 or less                     639     $   49,946.42         71.64%          59.98%
$50,000.01 to $100,000.00              627         78,249.87         79.66            78.3
$100,000.01 to $150,000.00             645        124,305.05         80.68           65.78
$150,000.01 to $200,000.00             654        173,474.66         80.66           53.19
$200,000.01 to $250,000.00             663        222,906.64         80.89           39.63
$250,000.01 to $300,000.00             671        270,486.01         81.53           26.95
$300,000.01 to $350,000.00             674        320,737.66         82.58           24.98
$350,000.01 to $400,000.00             679        374,130.97         81.72           17.74
$400,000.01 to $450,000.00             688        424,274.13         82.51            8.89
$450,000.01 to $500,000.00             684        474,860.33         82.42            6.13
$500,000.01 to $550,000.00             678        520,837.88          82.4             2.7
$550,000.01 to $600,000.00             687        569,817.38         83.27            6.78
$600,000.01 to $650,000.00             689        628,243.92         84.57           14.33
$650,000.01 to $700,000.00             662        680,291.64         81.06               0
$700,000.01 to $750,000.00             726        721,928.57          83.9           14.64
$750,000.01 to $800,000.00             719        797,500.00         86.51               0
$800,000.01 to $850,000.00             667        825,000.00         84.62             100
$850,000.01 to $900,000.00             697        867,000.00            85             100
$950,000.01 to $1,000,000.00           669      1,000,000.00            80             100
$1,000,000.01 >=                       648      1,196,729.87         62.34             100
TOTAL:                                 667     $  221,737.86         81.55%          34.15%


Maximum Remaining Balance: $1,196,729.87
Minimum Remaining Balance: $49,896.65
Average Remaining Balance: $221,737.86




--------------------------------------------------------------------------------

14. RANGE OF OUTSTANDING MORTGAGE LOAN PRINCIPAL BALANCES



                                                  AGGREGATE
RANGE OF OUTSTANDING              NUMBER OF       PRINCIPAL       PERCENT OF     WEIGHTED
MORTGAGE LOAN                      MORTGAGE        BALANCE         MORTGAGE      AVERAGE
PRINCIPAL BALANCES                  LOANS        OUTSTANDING         POOL         COUPON
$50,000.00 or less                        5    $    249,732.08          0.05%        8.06%
$50,000.01 to $75,000.00                150       9,604,532.37          1.96        7.755
$75,000.01 to $100,000.00               203      18,017,672.67          3.67         7.41
$100,000.01 to $125,000.00              265      29,896,688.56          6.09        7.157
$125,000.01 to $150,000.00              236      32,380,139.37           6.6        7.106
$150,000.01 to $175,000.00              213      34,456,917.05          7.02        7.045
$175,000.01 to $200,000.00              176      33,024,724.06          6.73        7.012
$200,000.01 to $225,000.00              128      27,073,581.72          5.52        7.042
$225,000.01 to $250,000.00              104      24,640,759.82          5.02        7.003
$250,000.01 to $275,000.00              116      30,352,047.71          6.19        6.885
$275,000.01 to $300,000.00               69      19,687,863.83          4.01         6.93
$300,000.01 to $325,000.00              106      32,921,759.62          6.71        6.794
$325,000.01 to $350,000.00               65      21,924,379.50          4.47        6.713
$350,000.01 to $375,000.00               67      24,332,477.08          4.96        6.726
$375,000.01 to $400,000.00               57      22,059,763.14           4.5        6.763
$400,000.01 to $425,000.00               43      17,774,953.10          3.62        6.805
$425,000.01 to $450,000.00               35      15,318,429.16          3.12        6.887
$450,000.01 to $475,000.00               33      15,297,257.00          3.12        6.672
$475,000.01 to $500,000.00               33      16,043,524.77          3.27         6.76
$500,000.01 to $525,000.00               24      12,284,640.11           2.5        6.723
$525,000.01 to $550,000.00               13       6,986,361.51          1.42        6.731
$550,000.01 to $575,000.00               20      11,226,028.06          2.29        6.787
$575,000.01 to $600,000.00                9       5,298,676.00          1.08         6.81
$600,000.01 to $625,000.00                8       4,909,547.33             1        6.723
$625,000.01 to $650,000.00               13       8,283,575.00          1.69        6.655
$650,000.01 to $675,000.00                2       1,303,700.00          0.27        6.475
$675,000.01 to $700,000.00                7       4,818,924.76          0.98        6.915
$700,000.01 to $725,000.00                5       3,569,500.00          0.73        6.904
$725,000.01 to $750,000.00                2       1,484,000.00           0.3          6.3
$775,000.01 to $800,000.00                2       1,595,000.00          0.33        6.775
$800,000.01 to $825,000.00                1         825,000.00          0.17          6.9
$850,000.01 to $875,000.00                1         867,000.00          0.18         7.25
$975,000.01 to $1,000,000.00              1       1,000,000.00           0.2         6.85
$1,000,000.01 >=                          1       1,196,729.87          0.24          6.5
TOTAL:                                2,213    $490,705,885.25        100.00%        6.93%


                                  WEIGHTED         AVERAGE        WEIGHTED
RANGE OF OUTSTANDING              AVERAGE         PRINCIPAL        AVERAGE      PERCENT
MORTGAGE LOAN                     CREDIT          BALANCE         ORIGINAL       FULL
PRINCIPAL BALANCES                 SCORE         OUTSTANDING         LTV     DOCUMENTATION
$50,000.00 or less                     639     $   49,946.42         71.64%          59.98%
$50,000.01 to $75,000.00               627         64,030.22         77.56           79.31
$75,000.01 to $100,000.00              627         88,757.01         80.78           77.76
$100,000.01 to $125,000.00             644        112,817.69         80.65           68.14
$125,000.01 to $150,000.00             645        137,203.98          80.7           63.59
$150,000.01 to $175,000.00             652        161,769.56         80.98           56.97
$175,000.01 to $200,000.00             657        187,640.48         80.32           49.24
$200,000.01 to $225,000.00             663        211,512.36         80.84           41.53
$225,000.01 to $250,000.00             662        236,930.38         80.95           37.54
$250,000.01 to $275,000.00             670        261,655.58         81.32           26.72
$275,000.01 to $300,000.00             672        285,331.36         81.87           27.29
$300,000.01 to $325,000.00             673        310,582.64         83.12           28.43
$325,000.01 to $350,000.00             676        337,298.15         81.76           19.79
$350,000.01 to $375,000.00             676        363,171.30         81.79              18
$375,000.01 to $400,000.00             682        387,013.39         81.65           17.45
$400,000.01 to $425,000.00             685        413,371.00         83.04            11.6
$425,000.01 to $450,000.00             691        437,669.40          81.9            5.75
$450,000.01 to $475,000.00             687        463,553.24         82.59            3.06
$475,000.01 to $500,000.00             682        486,167.42         82.27            9.07
$500,000.01 to $525,000.00             687        511,860.00         82.91            4.23
$525,000.01 to $550,000.00             663        537,412.42         81.51               0
$550,000.01 to $575,000.00             687        561,301.40         83.25            9.99
$575,000.01 to $600,000.00             687        588,741.78         83.32               0
$600,000.01 to $625,000.00             692        613,693.42         83.28           12.22
$625,000.01 to $650,000.00             687        637,198.08         85.34           15.59
$650,000.01 to $675,000.00             711        651,850.00            85               0
$675,000.01 to $700,000.00             649        688,417.82            80               0
$700,000.01 to $725,000.00             734        713,900.00         85.53               0
$725,000.01 to $750,000.00             706        742,000.00            80           49.87
$775,000.01 to $800,000.00             719        797,500.00         86.51               0
$800,000.01 to $825,000.00             667        825,000.00         84.62             100
$850,000.01 to $875,000.00             697        867,000.00            85             100
$975,000.01 to $1,000,000.00           669      1,000,000.00            80             100
$1,000,000.01 >=                       648      1,196,729.87         62.34             100
TOTAL:                                 667     $  221,737.86         81.55%          34.15%


Maximum Remaining Balance: $1,196,729.87
Minimum Remaining Balance: $49,896.65
Average Remaining Balance: $221,737.86

--------------------------------------------------------------------------------




--------------------------------------------------------------------------------

15. PRODUCT TYPE



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
PRODUCT TYPE                       LOANS       OUTSTANDING        POOL           COUPON
2/28 LIBOR ARM                         708   $100,496,585.44        20.48%          7.18%
2/28 LIBOR IO ARM                    1,099    314,024,961.08        63.99          6.811
30/15 BALLOON                            1         67,842.80         0.01           7.34
3/27 LIBOR ARM                          94     13,609,930.11         2.77          7.164
3/27 LIBOR IO ARM                      123     30,780,986.03         6.27           6.97
5/1 TREASURY ARM                         4      1,550,027.34         0.32          6.581
5/1 TREASURY IO ARM                     14      3,285,770.00         0.67          7.037
Fixed                                  150     22,369,510.15         4.56          7.309
Fixed IO                                20      4,520,272.30         0.92          6.954
TOTAL:                               2,213   $490,705,885.25       100.00%          6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
                                  CREDIT         BALANCE        ORIGINAL          FULL
PRODUCT TYPE                       SCORE       OUTSTANDING         LTV        DOCUMENTATION
2/28 LIBOR ARM                         641      $ 141,944.33       80.73%             54.78%
2/28 LIBOR IO ARM                      679        285,737.00       82.04              22.83
30/15 BALLOON                          636         67,842.80       77.27                100
3/27 LIBOR ARM                         633        144,786.49       80.32              61.82
3/27 LIBOR IO ARM                      670        250,251.92       81.46              39.51
5/1 TREASURY ARM                       647        387,506.84       66.75                100
5/1 TREASURY IO ARM                    663        234,697.86        83.6              53.38
Fixed                                  640        149,130.07       79.98               62.8
Fixed IO                               661        226,013.62          82              62.64
TOTAL:                                 667      $ 221,737.86       81.55%             34.15%





--------------------------------------------------------------------------------

16. AMORTIZATION TYPE



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
AMORTIZATION TYPE                  LOANS       OUTSTANDING        POOL           COUPON
30/15 Balloon                            1   $     67,842.80          0.01%         7.34%
5 Year IO                            1,256    352,611,989.41         71.86         6.829
Fully Amortizing                       956    138,026,053.04         28.13         7.191
TOTAL:                               2,213   $490,705,885.25        100.00%         6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
                                  CREDIT         BALANCE        ORIGINAL          FULL
AMORTIZATION TYPE                  SCORE       OUTSTANDING         LTV        DOCUMENTATION
30/15 Balloon                          636      $  67,842.80         77.27%          100.00%
5 Year IO                              677        280,742.03            82            25.08
Fully Amortizing                       640        144,378.72         80.41            57.28
TOTAL:                                 667      $ 221,737.86         81.55%           34.15%





--------------------------------------------------------------------------------

17. LOAN PROGRAM



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
LOAN PROGRAM                       LOANS       OUTSTANDING        POOL           COUPON
High Street                            680   $112,767,045.71         22.98%         6.93%
Main Street                             99     11,945,687.59          2.43         8.282
Wall Street                          1,434    365,993,151.95         74.59         6.887
TOTAL:                               2,213   $490,705,885.25        100.00%         6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
                                  CREDIT         BALANCE        ORIGINAL          FULL
LOAN PROGRAM                       SCORE       OUTSTANDING         LTV        DOCUMENTATION
High Street                            623      $ 165,833.89       80.53%             73.59%
Main Street                            572        120,663.51       85.93              84.49
Wall Street                            684        255,225.35       81.73              20.35
TOTAL:                                 667      $ 221,737.86       81.55%             34.15%





--------------------------------------------------------------------------------

18. STATE DISTRIBUTION OF MORTGAGED PROPERTIES



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
STATE DISTRIBUTION OF MORTGAGED  MORTGAGE        BALANCE        MORTGAGE         AVERAGE
PROPERTIES                         LOANS       OUTSTANDING        POOL           COUPON
Arizona                                131   $ 26,283,231.23          5.36%         6.94%
Arkansas                                 6        682,145.82          0.14         7.908
California                             590    214,407,301.29         43.69         6.687
Colorado                               111     18,524,774.45          3.78         6.781
Connecticut                              2        341,901.71          0.07         6.637
Delaware                                 1        133,397.07          0.03           7.4
Florida                                154     30,628,612.76          6.24         6.989
Georgia                                 77     11,382,190.76          2.32         7.043
Idaho                                   19      2,417,829.11          0.49          6.74
Illinois                               183     37,679,041.99          7.68         7.391
Indiana                                 16      1,602,245.82          0.33         7.598
Iowa                                    28      3,137,518.95          0.64         7.738
Kansas                                  53      5,862,608.01          1.19         7.489
Kentucky                                 6        624,898.13          0.13         7.765
Louisiana                                2        108,871.00          0.02         7.445
Maine                                    2        501,134.07           0.1         7.587
Maryland                                36      9,365,084.09          1.91         7.239
Massachusetts                           38      9,021,254.58          1.84         7.323
Michigan                                39      6,246,167.08          1.27         7.537
Minnesota                               38      7,030,549.73          1.43         6.767
Mississippi                              2        177,091.46          0.04         7.382
Missouri                                86      9,854,966.70          2.01         7.671
Nebraska                                13      1,283,614.33          0.26         7.592
Nevada                                  29      6,192,390.90          1.26         6.635
New Hampshire                            9      1,759,745.06          0.36         7.039
New Jersey                               6      1,400,740.21          0.29         7.498
New Mexico                               5      1,074,155.22          0.22         7.452
North Carolina                           6        813,403.63          0.17          7.28
Oklahoma                                13      1,497,980.12          0.31         6.961
Oregon                                  34      6,695,407.31          1.36         6.752
Pennsylvania                             7      1,118,648.64          0.23         6.813
Rhode Island                            10      1,977,118.79           0.4         6.734
South Carolina                           2        321,226.95          0.07         6.478
South Dakota                             1        111,017.17          0.02             7
Tennessee                               21      2,302,950.87          0.47         7.654
Texas                                  236     26,879,444.14          5.48         7.217
Utah                                    15      2,241,350.11          0.46         7.106
Washington                             143     27,670,468.91          5.64         6.981
Virginia                                32     10,213,205.07          2.08         6.875
Wisconsin                                9        905,828.04          0.18         7.396
Wyoming                                  2        234,373.97          0.05         6.693
TOTAL:                               2,213   $490,705,885.25        100.00%         6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
STATE DISTRIBUTION OF MORTGAGED   CREDIT         BALANCE        ORIGINAL          FULL
PROPERTIES                         SCORE       OUTSTANDING         LTV        DOCUMENTATION
Arizona                                660      $ 200,635.35         80.49%           49.23%
Arkansas                               626        113,690.97          83.1            43.76
California                             683        363,402.21          82.4            13.43
Colorado                               658        166,889.86         80.38             57.2
Connecticut                            606        170,950.86            80            35.77
Delaware                               608        133,397.07            80                0
Florida                                662        198,887.10         80.55            36.48
Georgia                                642        147,820.66         82.65            59.34
Idaho                                  633        127,254.16         79.72             67.7
Illinois                               669        205,896.40         80.76            33.74
Indiana                                641        100,140.36         80.17            79.38
Iowa                                   630        112,054.25         80.85            83.29
Kansas                                 633        110,615.25         80.86            76.02
Kentucky                               604        104,149.69         81.61            85.34
Louisiana                              588         54,435.50         70.84              100
Maine                                  680        250,567.03            80                0
Maryland                               667        260,141.22         80.94             33.3
Massachusetts                          672        237,401.44         81.18             24.5
Michigan                               641        160,158.13         84.54            57.39
Minnesota                              663        185,014.47         80.38            56.18
Mississippi                            598         88,545.73         77.29              100
Missouri                               616        114,592.64         82.67            66.77
Nebraska                               642         98,739.56         80.52               76
Nevada                                 659        213,530.72         81.22            68.43
New Hampshire                          668        195,527.23         80.75               29
New Jersey                             691        233,456.70            80                0
New Mexico                             622        214,831.04         80.73              100
North Carolina                         633        135,567.27            80            76.77
Oklahoma                               627        115,229.24         80.47              100
Oregon                                 650        196,923.74         81.03            51.69
Pennsylvania                           660        159,806.95         79.42            57.12
Rhode Island                           665        197,711.88            80            26.87
South Carolina                         593        160,613.48            80              100
South Dakota                           586        111,017.17            80              100
Tennessee                              612        109,664.33         84.13            84.94
Texas                                  639        113,895.95          79.9            64.05
Utah                                   655        149,423.34         82.17            51.69
Washington                             651        193,499.78         81.02            58.01
Virginia                               680        319,162.66         81.28            24.48
Wisconsin                              610        100,647.56         77.52            92.89
Wyoming                                636        117,186.99         79.09              100
TOTAL:                                 667      $ 221,737.86         81.55%           34.15%





--------------------------------------------------------------------------------

19. RANGE OF ORIGINAL LOAN-TO-VALUE RATIOS



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
RANGE OF ORIGINAL                MORTGAGE        BALANCE        MORTGAGE         AVERAGE
LOAN-TO-VALUE RATIOS               LOANS       OUTSTANDING        POOL           COUPON
50.00% or less                           1   $     86,904.40          0.02%         8.99%
55.01% to 60.00%                         2        173,012.67          0.04         7.939
60.01% to 65.00%                         2      1,300,134.87          0.26          6.56
65.01% to 70.00%                         9        733,796.73          0.15         8.639
70.01% to 75.00%                        71      5,242,406.17          1.07         7.438
75.01% to 80.00%                     1,638    338,956,081.34         69.08         6.895
80.01% to 85.00%                       352    112,400,143.60         22.91         6.899
85.01% to 90.00%                       135     31,555,898.69          6.43         7.283
90.01% to 95.00%                         3        257,506.79          0.05         9.314
TOTAL:                               2,213   $490,705,885.25        100.00%         6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
RANGE OF ORIGINAL                 CREDIT         BALANCE        ORIGINAL          FULL
LOAN-TO-VALUE RATIOS               SCORE       OUTSTANDING         LTV        DOCUMENTATION
50.00% or less                         546      $  86,904.40        42.44%           100.00%
55.01% to 60.00%                       623         86,506.34        59.32             40.43
60.01% to 65.00%                       651        650,067.43        62.34             92.05
65.01% to 70.00%                       608         81,532.97        69.49             75.53
70.01% to 75.00%                       643         73,836.71        74.08              61.8
75.01% to 80.00%                       664        206,932.89        79.93             37.91
80.01% to 85.00%                       678        319,318.59        84.84             17.75
85.01% to 90.00%                       663        233,747.40         89.8             44.09
90.01% to 95.00%                       641         85,835.60           95             28.03
TOTAL:                                 667      $ 221,737.86        81.55%            34.15%


Maximum LTV: 95.00
Minimum LTV: 42.44
WA LTV: 81.55





--------------------------------------------------------------------------------

20. LOAN PURPOSE



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
LOAN PURPOSE                       LOANS       OUTSTANDING        POOL           COUPON
Purchase                             1,863   $406,062,659.88         82.75%         6.92%
Refinance - Cashout                     61     16,807,344.81          3.43          6.83
Refinance - Rate/Term                  289     67,835,880.57         13.82          7.01
TOTAL:                               2,213   $490,705,885.25        100.00%         6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
                                   CREDIT         BALANCE        ORIGINAL          FULL
LOAN PURPOSE                       SCORE       OUTSTANDING         LTV        DOCUMENTATION
Purchase                               671      $ 217,961.71         81.63%           30.72%
Refinance - Cashout                    651        275,530.24         81.52            46.87
Refinance - Rate/Term                  649        234,726.23         81.09            51.51
TOTAL:                                 667      $ 221,737.86         81.55%           34.15%





--------------------------------------------------------------------------------

21. TYPES OF MORTGAGED PROPERTY TYPES



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
TYPES OF MORTGAGED PROPERTY      MORTGAGE        BALANCE        MORTGAGE         AVERAGE
TYPES                              LOANS       OUTSTANDING        POOL           COUPON
Condominium                            201   $ 42,936,353.86          8.75%         6.93%
Planned Unit Development               403     84,613,446.53         17.24         6.963
Single Family Attached                  17      2,788,239.27          0.57         7.191
Single Family Detached               1,492    326,605,607.94         66.56         6.921
Townhouse                                4        606,818.63          0.12         6.833
Two-to-Four Family                      96     33,155,419.02          6.76         6.924
TOTAL:                               2,213   $490,705,885.25        100.00%         6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
TYPES OF MORTGAGED PROPERTY       CREDIT         BALANCE        ORIGINAL          FULL
TYPES                              SCORE       OUTSTANDING         LTV        DOCUMENTATION
Condominium                            668      $ 213,613.70         81.95%           34.71%
Planned Unit Development               660        209,958.92          80.7            43.47
Single Family Attached                 669        164,014.07         80.36            41.66
Single Family Detached                 666        218,904.56         81.64            34.05
Townhouse                              635        151,704.66         82.43             80.7
Two-to-Four Family                     692        345,368.95         82.48             9.06
TOTAL:                                 667      $ 221,737.86         81.55%           34.15%





--------------------------------------------------------------------------------

22. DOCUMENTATION SUMMARY



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
DOCUMENTATION SUMMARY              LOANS       OUTSTANDING        POOL           COUPON
12 Month Bank Statements               102   $ 25,617,934.28         5.22%          7.01%
24 Month Bank Statements                27      7,596,018.83         1.55          6.902
Full Documentation                   1,048    167,564,266.59        34.15          6.933
Limited Documentation                   12      2,837,740.87         0.58          7.001
Stated Income Self-Employed            351    106,326,912.11        21.67          6.926
Stated Income Wage Earner              673    180,763,012.57        36.84          6.921
TOTAL:                               2,213   $490,705,885.25       100.00%          6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
                                   CREDIT         BALANCE        ORIGINAL          FULL
DOCUMENTATION SUMMARY              SCORE       OUTSTANDING         LTV        DOCUMENTATION
12 Month Bank Statements               638      $ 251,156.22        81.55%             0.00%
24 Month Bank Statements               626        281,334.03        81.67                 0
Full Documentation                     628        159,889.57           81               100
Limited Documentation                  670        236,478.41        80.22                 0
Stated Income Self-Employed            683        302,925.68        82.14                 0
Stated Income Wage Earner              699        268,592.89        81.74                 0
TOTAL:                                 667      $ 221,737.86        81.55%            34.15%





--------------------------------------------------------------------------------

23. OCCUPANCY TYPES



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
OCCUPANCY TYPES                    LOANS       OUTSTANDING        POOL           COUPON
Investment Property                      4   $  1,080,205.00         0.22%         7.10%
Primary Home                         2,209    489,625,680.25        99.78          6.93
TOTAL:                               2,213   $490,705,885.25       100.00%         6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
                                  CREDIT          BALANCE        ORIGINAL         FULL
OCCUPANCY TYPES                    SCORE       OUTSTANDING         LTV        DOCUMENTATION
Investment Property                    677      $ 270,051.25        78.30%            10.07%
Primary Home                           667        221,650.38        81.56              34.2
TOTAL:                                 667      $ 221,737.86        81.55%            34.15%





--------------------------------------------------------------------------------

24. MORTGAGE LOAN AGE (MONTHS)



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
MORTGAGE LOAN AGE (MONTHS)         LOANS       OUTSTANDING        POOL           COUPON
0                                      112   $ 24,453,661.00         4.98%          6.99%
1                                    1,024    232,350,252.50        47.35          6.934
2                                      794    161,413,178.31        32.89          6.997
3                                      273     69,695,064.73         14.2          6.751
4                                       10      2,793,728.71         0.57          6.719
TOTAL:                               2,213   $490,705,885.25       100.00%          6.93%


                                 WEIGHTED         AVERAGE       WEIGHTED
                                  AVERAGE        PRINCIPAL       AVERAGE         PERCENT
                                  CREDIT          BALANCE       ORIGINAL          FULL
MORTGAGE LOAN AGE (MONTHS)         SCORE        OUTSTANDING        LTV        DOCUMENTATION
0                                      676      $ 218,336.26        81.09%            23.45%
1                                      669        226,904.54        81.68             34.01
2                                      666        203,291.16        81.58             35.33
3                                      660        255,293.28        81.21             35.57
4                                      642        279,372.87        82.31             35.21
TOTAL:                                 667      $ 221,737.86        81.55%            34.15%


Minimum Seasoning: 0
Maximum Seasoning: 4
WA Seasoning: 2





--------------------------------------------------------------------------------

25. ORIGINAL PREPAYMENT PENALTY TERM



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
ORIGINAL PREPAYMENT PENALTY TERM   LOANS       OUTSTANDING        POOL           COUPON
6 Months                                53   $  5,862,608.01         1.19%          7.49%
12 Months                               46     13,610,682.05         2.77           7.21
24 Months                            1,516    355,748,142.10         72.5            6.8
30 Months                                1        180,000.00         0.04           7.45
36 Months                              255     44,832,701.04         9.14          7.037
None                                   342     70,471,752.06        14.36          7.421
TOTAL:                               2,213   $490,705,885.25       100.00%          6.93%


                                 WEIGHTED         AVERAGE       WEIGHTED
                                  AVERAGE        PRINCIPAL       AVERAGE         PERCENT
                                  CREDIT          BALANCE       ORIGINAL          FULL
MORTGAGE LOAN AGE (MONTHS)         SCORE        OUTSTANDING        LTV        DOCUMENTATION
6 Months                               633      $ 110,615.25        80.86%            76.02%
12 Months                              680        295,884.39        81.81             24.97
24 Months                              669        234,662.36        81.84             30.73
30 Months                              597        180,000.00           80               100
36 Months                              652        175,814.51        80.42             57.38
None                                   666        206,057.75        80.85             34.76
TOTAL:                                 667      $ 221,737.86        81.55%            34.15%


Minimum Prepayment Penalty Term: 0
Maximum Prepayment Penalty Term: 36
WA Prepayment Penalty Term: 25




--------------------------------------------------------------------------------

26. RANGE OF CREDIT SCORES



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
RANGE OF CREDIT SCORES             LOANS       OUTSTANDING        POOL           COUPON
526 to 550                              18   $  2,084,173.23         0.42%          9.34%
551 to 575                              45      5,605,481.21         1.14          8.516
576 to 600                             255     37,212,587.00         7.58           7.07
601 to 625                             327     56,243,112.08        11.46          6.928
626 to 650                             358     69,199,683.79         14.1          6.904
651 to 675                             454    115,356,077.02        23.51          6.956
676 to 700                             353     93,914,977.91        19.14          6.883
701 to 725                             204     55,000,695.27        11.21          6.816
726 to 750                             111     32,287,723.18         6.58          6.727
751 to 775                              57     15,415,118.12         3.14          6.858
776 to 800                              29      7,079,756.44         1.44          6.782
801 to 825                               2      1,306,500.00         0.27          6.479
TOTAL:                               2,213   $490,705,885.25       100.00%          6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
                                  CREDIT          BALANCE        ORIGINAL          FULL
RANGE OF CREDIT SCORES             SCORE       OUTSTANDING         LTV        DOCUMENTATION
526 to 550                             540      $ 115,787.40        81.72%            92.87%
551 to 575                             562        124,566.25        88.32             90.75
576 to 600                             591        145,931.71        80.55              86.6
601 to 625                             612        171,997.28        81.02             82.06
626 to 650                             639        193,295.21        80.51             56.64
651 to 675                             664        254,088.28        81.59              23.1
676 to 700                             687        266,048.10        81.86              8.66
701 to 725                             712        269,611.25        82.15              6.94
726 to 750                             736        290,880.39        82.53              8.14
751 to 775                             762        270,440.67         81.9              8.41
776 to 800                             786        244,129.53        81.08              6.32
801 to 825                             804        653,250.00        84.31                 0
TOTAL:                                 667      $ 221,737.86        81.55%            34.15%


Maximum FICO: 805
Minimum FICO: 527
WA FICO: 667





--------------------------------------------------------------------------------

27. CREDIT GRADE SUMMARY



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
CREDIT GRADE SUMMARY               LOANS       OUTSTANDING        POOL           COUPON
A                                    2,185   $486,209,048.98        99.08%          6.92%
A-                                      15      2,401,328.47         0.49           8.17
B                                        8        855,128.61         0.17          8.725
C                                        4        970,394.88          0.2          7.779
D                                        1        269,984.31         0.06           10.5
TOTAL:                               2,213   $490,705,885.25       100.00%          6.93%


                                 WEIGHTED         AVERAGE        WEIGHTED
                                  AVERAGE        PRINCIPAL       AVERAGE         PERCENT
                                  CREDIT          BALANCE        ORIGINAL         FULL
CREDIT GRADE SUMMARY               SCORE        OUTSTANDING        LTV        DOCUMENTATION
A                                      668      $ 222,521.30        81.52%            33.78%
A-                                     589        160,088.56        88.18             75.09
B                                      578        106,891.08        83.93             82.61
C                                      660        242,598.72        82.08             57.01
D                                      540        269,984.31           70               100
TOTAL:                                 667      $ 221,737.86        81.55%            34.15%





--------------------------------------------------------------------------------

28. RANGE OF GROSS MARGINS



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
RANGE OF GROSS MARGINS             LOANS       OUTSTANDING        POOL           COUPON
2.501% to 3.000%                         2   $    299,110.13         0.06%          7.24%
3.001% to 3.500%                         5        697,013.10         0.15          7.373
3.501% to 4.000%                        88     14,611,064.87         3.15          7.315
4.001% to 4.500%                         3        466,851.10          0.1          7.067
4.501% to 5.000%                         1        509,915.00         0.11           6.25
5.001% to 5.500%                       388     98,951,934.21        21.34          6.804
5.501% to 6.000%                     1,129    284,460,479.63        61.34          6.846
6.001% to 6.500%                       425     63,636,036.97        13.72          7.281
6.501% to 7.000%                         1        115,855.00         0.02           6.85
TOTAL:                               2,042   $463,748,260.00       100.00%          6.91%


                                 WEIGHTED         AVERAGE        WEIGHTED
                                  AVERAGE        PRINCIPAL       AVERAGE         PERCENT
                                  CREDIT          BALANCE        ORIGINAL         FULL
RANGE OF GROSS MARGINS             SCORE        OUTSTANDING        LTV        DOCUMENTATION
2.501% to 3.000%                       645      $ 149,555.07        80.00%           100.00%
3.001% to 3.500%                       663        139,402.62           80             29.24
3.501% to 4.000%                       672        166,034.83        79.95             34.81
4.001% to 4.500%                       660        155,617.03           80             19.49
4.501% to 5.000%                       676        509,915.00           85                 0
5.001% to 5.500%                       655        255,030.76        81.98             43.88
5.501% to 6.000%                       676        251,957.91        81.68             25.83
6.001% to 6.500%                       655        149,731.85        81.25             43.86
6.501% to 7.000%                       634        115,855.00           85               100
TOTAL:                                 668      $ 227,104.93        81.63%            32.48%


Maximum Gross Margin: 6.750%
Minimum Gross Margin: 3.000%
WA Gross Margin: 5.724%




--------------------------------------------------------------------------------

29. RANGE OF MAXIMUM MORTGAGE RATES



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
RANGE OF MAXIMUM                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
MORTGAGE RATES                     LOANS       OUTSTANDING        POOL           COUPON
12.001 to 12.500                       458   $130,957,580.37        28.24%          6.39%
12.501 to 13.000                       803    194,314,860.50         41.9          6.801
13.001 to 13.500                       421     83,951,600.16         18.1          7.286
13.501 to 14.000                       245     40,216,960.74         8.67          7.743
14.001 to 14.500                        53      7,173,364.15         1.55          8.291
14.501 to 15.000                        32      4,361,065.82         0.94          8.746
15.001 to 15.500                        16      1,432,890.98         0.31          9.272
15.501 to 16.000                        10        792,141.71         0.17          9.808
16.001 to 16.500                         3        399,103.42         0.09         10.458
16.501 to 17.000                         1        148,692.15         0.03           10.6
TOTAL:                               2,042   $463,748,260.00       100.00%          6.91%


                                 WEIGHTED         AVERAGE        WEIGHTED
                                  AVERAGE        PRINCIPAL       AVERAGE         PERCENT
RANGE OF MAXIMUM                  CREDIT          BALANCE        ORIGINAL         FULL
MORTGAGE RATES                     SCORE        OUTSTANDING        LTV        DOCUMENTATION
12.001 to 12.500                       675      $ 285,933.58        81.34%            36.63%
12.501 to 13.000                       672        241,986.13        81.66             30.84
13.001 to 13.500                       666        199,409.98        81.45             28.74
13.501 to 14.000                       657        164,150.86        81.75             28.07
14.001 to 14.500                       639        135,346.49        83.03             30.02
14.501 to 15.000                       598        136,283.31        86.15             61.93
15.001 to 15.500                       564         89,555.69        86.93             93.02
15.501 to 16.000                       560         79,214.17         88.3             92.05
16.001 to 16.500                       539        133,034.47        74.85               100
16.501 to 17.000                       549        148,692.15        84.52                 0
TOTAL:                                 668      $ 227,104.93        81.63%            32.48%


Maximum Max Rate: 16.600%
Minimum Max Rate: 12.150%
WA Max Rate: 12.912%




--------------------------------------------------------------------------------

30. NEXT RATE ADJUSTMENT DATE



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
NEXT RATE ADJUSTMENT DATE          LOANS       OUTSTANDING        POOL           COUPON
2007-07                                  6   $  1,777,928.71         0.38%          6.88%
2007-08                                188     50,753,395.03        10.94          6.689
2007-09                                605    127,643,583.88        27.52          6.961
2007-10                                905    211,187,997.90        45.54          6.904
2007-11                                103     23,158,641.00         4.99          6.983
2008-07                                  3        700,800.00         0.15          6.392
2008-08                                 70     15,077,040.42         3.25          6.905
2008-09                                101     19,783,395.24         4.27          7.115
2008-10                                 41      8,422,560.48         1.82          7.129
2008-11                                  2        407,120.00         0.09          6.484
2010-08                                  3      1,571,129.87         0.34          6.591
2010-09                                 10      1,703,767.48         0.37          6.755
2010-10                                  5      1,560,900.00         0.34          7.341
TOTAL:                               2,042   $463,748,260.00       100.00%          6.91%


                                 WEIGHTED         AVERAGE        WEIGHTED
                                  AVERAGE        PRINCIPAL        AVERAGE        PERCENT
                                   CREDIT         BALANCE        ORIGINAL         FULL
NEXT RATE ADJUSTMENT DATE          SCORE        OUTSTANDING         LTV       DOCUMENTATION
2007-07                                638      $ 296,321.45        81.85%            12.37%
2007-08                                666        269,964.87        81.76              29.6
2007-09                                668        210,981.13        81.76             29.71
2007-10                                671        233,356.90        81.75             32.55
2007-11                                677        224,841.17        81.18             20.83
2008-07                                643        233,600.00           80             64.04
2008-08                                651        215,386.29        81.02             43.47
2008-09                                660        195,875.20        81.17             49.68
2008-10                                669        205,428.30        81.27             41.35
2008-11                                696        203,560.00           80             64.06
2010-08                                646        523,709.96        66.55               100
2010-09                                665        170,376.75        82.34             68.97
2010-10                                662        312,180.00         85.4             35.74
TOTAL:                                 668      $ 227,104.93        81.63%            32.48%





--------------------------------------------------------------------------------

31. ZIP CODE



                                                AGGREGATE
                                 NUMBER OF      PRINCIPAL      PERCENT OF       WEIGHTED
                                 MORTGAGE        BALANCE        MORTGAGE         AVERAGE
ZIP CODE                           LOANS       OUTSTANDING        POOL           COUPON
91331                                    9   $  3,483,910.00         0.71%          6.57%
90650                                    8      2,770,352.32         0.56          6.672
92553                                    9      2,651,216.35         0.54          6.728
92345                                    9      2,639,925.77         0.54          6.775
92840                                    5      2,570,650.00         0.52          6.409
90805                                    6      2,210,998.33         0.45           6.68
92562                                    5      1,929,533.00         0.39          6.645
90018                                    4      1,834,050.00         0.37          6.472
90250                                    4      1,731,800.00         0.35          6.536
92704                                    4      1,723,040.00         0.35          6.503
Other                                2,150    467,160,409.49         95.2          6.947
TOTAL:                               2,213   $490,705,885.25       100.00%          6.93%


                                 WEIGHTED        AVERAGE        WEIGHTED
                                  AVERAGE       PRINCIPAL        AVERAGE         PERCENT
                                   CREDIT          BALANCE        ORIGINAL          FULL
ZIP CODE                           SCORE       OUTSTANDING         LTV        DOCUMENTATION
91331                                  696      $ 387,101.11        82.95%            13.42%
90650                                  667        346,294.04        82.08             14.49
92553                                  687        294,579.59        80.52                 0
92345                                  677        293,325.09        82.46                 0
92840                                  721        514,130.00         81.2                 0
90805                                  690        368,499.72        80.88                 0
92562                                  666        385,906.60        82.33             16.21
90018                                  704        458,512.50        81.36                 0
90250                                  682        432,950.00        82.62                 0
92704                                  695        430,760.00           80                 0
Other                                  666        217,283.91        81.55             35.62
TOTAL:                                 667      $ 221,737.86        81.55%            34.15%





--------------------------------------------------------------------------------

32. INITIAL INTEREST RATE CAP

Minimum: 2.000%
Maximum: 3.000%
WA: 2.990%




--------------------------------------------------------------------------------

33. PERIODIC RATE CAP

Minimum: 1.000%
Maximum: 1.000%
WA: 1.000%




--------------------------------------------------------------------------------

34. MIN MORTGAGE RATE

Minimum: 6.150%
Maximum: 10.600%
WA: 6.912%




--------------------------------------------------------------------------------

35. MONTHS TO ROLL

Minimum: 20
Maximum: 59
WA: 24




--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
                        10/21/2005 14:09

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.



                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  4,402 RECORDS
                              BALANCE: 875,331,945

--------------------------------------------------------------------------------

SELECTION CRITERIA: ALL RECORDS
TABLE OF CONTENTS

1. City
2. State

--------------------------------------------------------------------------------

1. CITY

CITY                 TOTAL REMAINING BALANCE    PERCENT REMAINING BALANCE   FICO
LOS ANGELES                    21,671,269.87                         2.48    675
CHICAGO                        17,549,990.50                            2    656
PHOENIX                        12,060,857.51                         1.38    632
SAN DIEGO                      10,420,900.62                         1.19    653
LONG BEACH                     10,258,520.85                         1.17    674
LAS VEGAS                       8,999,869.92                         1.03    645
MORENO VALLEY                   8,107,519.88                         0.93    659
ANAHEIM                         8,000,796.98                         0.91    695
SANTA ANA                       7,735,788.45                         0.88    675
DENVER                          6,923,625.81                         0.79    679
Other                         763,602,804.94                        87.24    648
TOTAL:                        875,331,945.33                          100    650




--------------------------------------------------------------------------------

2. STATE

STATE                TOTAL REMAINING BALANCE    PERCENT REMAINING BALANCE   FICO
Arizona                        59,721,550.45                         6.82    636
Arkansas                        1,126,427.17                         0.13    604
California                    352,965,791.76                        40.32    668
Colorado                       26,890,143.41                         3.07    650
Connecticut                       726,457.84                         0.08    608
Delaware                          825,252.97                         0.09    570
Florida                        64,740,916.39                          7.4    641
Georgia                        16,463,382.76                         1.88    629
Idaho                           4,164,168.80                         0.48    615
Illinois                       70,626,060.82                         8.07    650
Indiana                         2,528,559.72                         0.29    622
Iowa                            7,779,731.23                         0.89    614
Kansas                         10,070,361.44                         1.15    625
Kentucky                          960,461.60                         0.11    592
Louisiana                         222,726.59                         0.03    615
Maine                           1,263,456.50                         0.14    612
Maryland                       21,263,307.20                         2.43    643
Massachusetts                  24,258,316.77                         2.77    637
Michigan                       10,481,578.88                          1.2    631
Minnesota                       9,876,042.32                         1.13    653
Mississippi                       483,431.34                         0.06    624
Missouri                       17,960,702.98                         2.05    612
Nebraska                        2,194,950.31                         0.25    631
Nevada                         12,908,651.20                         1.47    635
New Hampshire                   4,158,281.90                         0.48    625
New Jersey                      6,443,533.75                         0.74    639
New Mexico                      1,825,240.26                         0.21    611
North Carolina                  1,340,139.04                         0.15    623
North Dakota                       66,462.91                         0.01    614
Ohio                              459,776.57                         0.05    648
Oklahoma                        2,059,211.04                         0.24    604
Oregon                         10,850,796.53                         1.24    637
Pennsylvania                    3,066,035.35                         0.35    621
Rhode Island                    3,573,456.83                         0.41    659
South Carolina                    987,747.14                         0.11    620
South Dakota                      111,017.17                         0.01    586
Tennessee                       3,928,687.32                         0.45    613
Texas                          35,300,200.30                         4.03    635
Utah                            4,648,423.76                         0.53    639
Vermont                           550,381.47                         0.06    639
Washington                     52,919,979.32                         6.05    640
Virginia                       19,501,763.33                         2.23    652
West Virginia                     799,113.44                         0.09    617
Wisconsin                       2,004,893.48                         0.23    609
Wyoming                           234,373.97                         0.03    636
TOTAL:                        875,331,945.33                          100    650





--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
   10/21/2005 20:19

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.





                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  4,402 RECORDS
                              BALANCE: 875,331,945

--------------------------------------------------------------------------------

SELECTION CRITERIA: ALL RECORDS
TABLE OF CONTENTS

1. Principal balance at Origination
2. Remaining Principal Balance
3. Fico Scores
4. Original Term
5. Remaining Term
6. Property Type
7. Occupancy Status
8. Loan Purpose
9. Original Loan to Value Ratio
10. Combined Loan to Value Ratio
11. Geographic Distribution By Balance
12. Documentation
13. Mortgage Rate
14. Maximum Rate
15. Gross Margin
16. Next Rate Adjustment Date
17. Original Number of Months to Expiration Of Prepayment Penalty Term
18. Index Type
19. Credit Grade
20. Lien Position

--------------------------------------------------------------------------------

1. PRINCIPAL BALANCE AT ORIGINATION



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
PRINCIPAL BALANCE AT         NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
  ORIGINATION                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
1 - 25,000                          56  $      1,199,070.83                 0.14%      709    98.73%    98.73%     9.72%     100.00%
25,001 - 50,000                    262         9,943,213.57                 1.14       702     95.8     96.51      9.86       98.49
50,001 - 75,000                    433        27,229,828.30                 3.11       648    85.44     93.27      8.82        96.4
75,001 - 100,000                   427        37,691,277.96                 4.31       635     84.3     93.23     8.235       95.44
100,001 - 125,000                  466        52,511,398.59                    6       637    83.12     93.82     7.736       97.51
125,001 - 150,000                  408        56,079,528.29                 6.41       632    81.96      92.9     7.481       96.56
150,001 - 175,000                  361        58,490,738.14                 6.68       633    81.03     91.82     7.333       98.04
175,001 - 200,000                  301        56,377,650.36                 6.44       636    79.82     90.98     7.273       95.98
200,001 - 250,000                  415        92,806,534.63                 10.6       641    80.99     91.45     7.271       96.91
250,001 - 300,000                  335        91,201,407.80                10.42       647    81.45      91.3     7.161       96.68
300,001 - 400,000                  525       180,946,117.64                20.67       653    82.26     91.98     6.957       98.97
400,001 - 500,000                  249       111,465,389.56                12.73       663    82.88     92.55     6.984       96.33
500,001 - 600,000                   99        53,983,992.91                 6.17       672    83.12     93.53     6.859       98.89
600,001 - 700,000                   41        26,326,495.59                 3.01       672    84.01     95.46     6.811       97.69
700,001 >=                          24        19,079,301.18                 2.18       694     83.1     90.99     6.876         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Mimimum Original Balance: 20,000.00
Maximum Original Balance: 1,200,000.00
Average Original Balance: 198,942.53




--------------------------------------------------------------------------------

2. REMAINING PRINCIPAL BALANCE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
REMAINING PRINCIPAL BALANCE    LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
1 - 25,000                          58  $      1,249,051.86                 0.14%      709    98.78%    98.78%     9.74%     100.00%
25,001 - 50,000                    260         9,893,232.54                 1.13       703    95.78     96.49     9.858       98.49
50,001 - 75,000                    434        27,302,269.25                 3.12       648    85.48     93.29     8.824       96.41
75,001 - 100,000                   427        37,718,667.51                 4.31       634    84.28     93.23     8.232       95.44
100,001 - 125,000                  466        52,536,514.41                    6       636    83.13     93.79     7.736       97.51
125,001 - 150,000                  407        55,954,581.97                 6.39       632    81.94      92.9     7.479       96.55
150,001 - 175,000                  362        58,665,629.64                  6.7       633    81.03     91.84     7.331       98.05
175,001 - 200,000                  301        56,402,549.94                 6.44       636    79.82     90.98     7.275       95.99
200,001 - 250,000                  414        92,606,743.54                10.58       642    80.99     91.43     7.271       96.91
250,001 - 300,000                  336        91,501,183.90                10.45       647    81.46     91.33     7.159       96.69
300,001 - 400,000                  524       180,646,341.54                20.64       653    82.25     91.97     6.958       98.96
400,001 - 500,000                  249       111,465,389.56                12.73       663    82.88     92.55     6.984       96.33
500,001 - 600,000                   99        53,983,992.91                 6.17       672    83.12     93.53     6.859       98.89
600,001 - 700,000                   41        26,326,495.59                 3.01       672    84.01     95.46     6.811       97.69
700,001 >=                          24        19,079,301.18                 2.18       694     83.1     90.99     6.876         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Mimimum Remaining Balance: 19,788.65
Maximum Remaining Balance: 1,196,729.87
Average Remaining Balance: 198,848.69




--------------------------------------------------------------------------------

3. FICO SCORES



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
FICO SCORES                    LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
501 - 525                           33  $      5,477,627.92                 0.63%      518    72.72%    72.72%     8.86%     100.00%
526 - 550                          139        22,080,956.18                 2.52       541    79.09     80.23     8.354       98.26
551 - 575                          343        60,970,897.74                 6.97       563    81.05     82.04     7.952       98.44
576 - 600                          518        89,917,573.45                10.27       589    80.57     88.47     7.358       98.86
601 - 625                          622       124,443,496.37                14.22       613    81.87     90.08     7.201        97.8
626 - 650                          599       125,417,296.26                14.33       638    81.91     91.94     7.103       97.49
651 - 675                          606       154,070,668.07                 17.6       664    82.07     95.41      7.01        96.6
676 - 700                          693       133,027,066.28                 15.2       687    83.89     96.29     7.262       96.82
701 - 725                          425        79,469,121.77                 9.08       712    84.56     96.69     7.243       97.04
726 - 750                          236        45,623,495.49                 5.21       736    84.74     96.69     7.198        96.1
751 - 775                          119        23,147,695.44                 2.64       761    84.45        96     7.326       96.87
776 - 800                           64         9,855,458.47                 1.13       785    84.52     98.11     7.357         100
801 - 825                            5         1,830,591.90                 0.21       805    86.28     97.48     6.747         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Minimum FICO: 502
Maximum FICO: 815
WA FICO: 650




--------------------------------------------------------------------------------

4. ORIGINAL TERM



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
ORIGINAL TERM                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
121 - 180                          601  $     34,964,426.05                 3.99%      712    99.04%    99.32%     9.94%     100.00%
181 - 240                            7           896,963.24                  0.1       630    65.38     65.38      7.81         100
301 - 360                        3,794       839,470,556.05                 95.9       648    81.72     92.09     7.167       97.31
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Minimum Original Term: 180
Maximum Original Term: 360
WA Original Term: 353




--------------------------------------------------------------------------------

5. REMAINING TERM



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
REMAINING TERM                 LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
<= 180                             601  $     34,964,426.05                 3.99%      712    99.04%    99.32%     9.94%     100.00%
181 - 348                            7           896,963.24                  0.1       630    65.38     65.38      7.81         100
349 - 360                        3,794       839,470,556.05                 95.9       648    81.72     92.09     7.167       97.31
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Minimum Remaining Term: 176
Maximum Remaining Term: 360
WA Remaining Term: 351




--------------------------------------------------------------------------------

6. PROPERTY TYPE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
PROPERTY TYPE                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
Single Family Detached           3,059  $    592,873,455.08                67.73%      648    82.42%    92.27%     7.29%      97.99%
Planned Unit Development           718       149,678,982.75                 17.1       645    82.21     92.45     7.239       97.75
Two-to-Four Family                 228        63,479,664.08                 7.25       676     82.2     90.43     7.306       90.82
Condominium                        344        61,538,368.64                 7.03       660    82.79      95.1     7.239       98.23
Single Family Attached              36         4,935,124.04                 0.56       650    82.18     93.06      7.45       96.63
Townhouse                           16         2,421,350.74                 0.28       616    86.16     90.57     7.399       91.18
Manufactured Home                    1           405,000.00                 0.05       637    69.83     69.83     6.675         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%





--------------------------------------------------------------------------------

7. OCCUPANCY STATUS



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
OCCUPANCY STATUS               LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
Primary Home                     4,280  $    852,772,358.52                97.42%      650    82.56%    92.77%     7.27%     100.00%
Investment Property                122        22,559,586.82                 2.58       663    76.33     76.65     7.725           0
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%





--------------------------------------------------------------------------------

8. LOAN PURPOSE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
LOAN PURPOSE                   LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
Purchase                         2,819  $    526,831,575.00                60.19%      666    83.31%    97.14%     7.23%      98.54%
Refinance - Rate/Term            1,210       262,886,312.91                30.03       627     81.1     85.41     7.359        95.5
Refinance - Cashout                373        85,614,057.42                 9.78       624    80.81      84.2     7.311       96.45
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%





--------------------------------------------------------------------------------

9. ORIGINAL LOAN TO VALUE RATIO



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
ORIGINAL LOAN TO VALUE RATIO  LOANS      PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
<= 50.00                            46  $      6,923,348.74                 0.79%      602    42.27%    42.40%     7.32%      94.56%
50.01 - 60.00                       64        11,502,566.36                 1.31       601    56.32     56.75     7.165       93.67
60.01 - 70.00                      156        33,190,500.60                 3.79       612    67.23     68.01     7.404       89.58
70.01 - 80.00                    2,187       450,515,139.55                51.47       653    79.43     94.39     7.024       96.42
80.01 - 90.00                    1,202       307,895,216.70                35.17       648    87.08     93.39     7.273       99.39
90.01 - 100.00                     747        65,305,173.40                 7.46       672    97.35     97.37     9.011         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Minimum Loan-to-Value Ratio: 14.41
Maximum Loan-to-Value Ratio: 100.00
WA Loan-to-Value Ratio By Original Balance: 82.40




--------------------------------------------------------------------------------

10. COMBINED LOAN TO VALUE RATIO



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
COMBINED LOAN TO VALUE RATIO  LOANS      PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
<= 50.00                            45  $      6,836,444.33                 0.78%      602    42.27%    42.27%     7.30%      94.49%
50.01 - 60.00                       63        11,416,458.09                  1.3       600    56.16     56.24     7.167       93.62
60.01 - 70.00                      146        32,353,298.86                  3.7       612     67.2     67.48     7.376       89.63
70.01 - 80.00                      481       106,793,102.44                 12.2       617    78.06     78.11     7.421       85.73
80.01 - 90.00                      752       174,653,978.08                19.95       627    87.63     88.17     7.496       98.42
90.01 - 100.00                   2,915       543,278,663.53                62.07       668    83.53     99.37     7.177       99.98
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Minimum Combined Loan-to-Value Ratio: 14.41
Maximum Combined Loan-to-Value Ratio: 100.00
WA Combined Loan-to-Value Ratio: 92.35




--------------------------------------------------------------------------------

11. GEOGRAPHIC DISTRIBUTION BY BALANCE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
GEOGRAPHIC DISTRIBUTION BY   NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
  BALANCE                      LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
California                       1,168  $    352,965,791.76                40.32%      668    82.29%    92.55%     6.97%      97.99%
Illinois                           396        70,626,060.82                 8.07       650    83.01     92.77     7.739       98.09
Florida                            356        64,740,916.39                  7.4       641    82.12     90.95     7.404       95.99
Arizona                            312        59,721,550.45                 6.82       636    81.85     90.11     7.326       96.89
Washington                         294        52,919,979.32                 6.05       640    82.36     92.01     7.249        95.4
Texas                              337        35,300,200.30                 4.03       635    80.59     95.57     7.444       98.22
Colorado                           176        26,890,143.41                 3.07       650    82.15     95.43     7.207       95.73
Massachusetts                      100        24,258,316.77                 2.77       637    82.24     89.13     7.599       97.78
Maryland                            89        21,263,307.20                 2.43       643    81.84     90.17     7.549       95.29
Virginia                            82        19,501,763.33                 2.23       652    83.13      92.5     7.351       98.39
Other                            1,092       147,143,915.59                16.81       627    83.22     92.83     7.608       97.56
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Total Number Of Stated Represented:: 45




--------------------------------------------------------------------------------

12. DOCUMENTATION



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
DOCUMENTATION                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
Full Documentation               2,089  $    352,187,174.19                40.23%      616    81.82%    90.46%     7.23%      98.13%
Stated Income Wage Earner        1,359       282,374,251.62                32.26       685    83.11     94.44     7.361        97.9
Stated Income Self-Employed        668       168,594,954.14                19.26       674    82.41     93.25     7.247       96.09
12 Month Bank Statements           203        49,885,870.43                  5.7       623    82.51     91.54     7.255       95.14
24 Month Bank Statements            66        18,378,201.00                  2.1       618    82.74     90.02     7.255       94.33
Limited Documentation               17         3,911,493.95                 0.45       653    80.47     94.82     7.254         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%





--------------------------------------------------------------------------------

13. MORTGAGE RATE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
MORTGAGE RATE                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
6.001 - 6.500                      595  $    172,248,921.30                19.68%      669    80.41%    94.42%     6.39%      99.56%
6.501 - 7.000                    1,160       290,814,980.08                33.22       660    81.05     93.45     6.812       98.45
7.001 - 7.500                      759       162,574,306.70                18.57       648    81.95     92.04     7.302       96.42
7.501 - 8.000                      654       126,360,139.50                14.44       627    83.08     89.39     7.779       95.78
8.001 - 8.500                      255        42,125,217.03                 4.81       603    84.89     88.64       8.3       95.79
8.501 - 9.000                      245        29,594,925.05                 3.38       602    85.64     87.76     8.785       90.16
9.001 - 9.500                      187        15,732,985.31                  1.8       624    87.65     88.92     9.367       92.94
9.501 - 10.000                     285        20,678,345.69                 2.36       671    94.53        95      9.89        98.3
10.001 - 10.500                    180        10,552,039.73                 1.21       675    94.35      94.7    10.291         100
10.501 - 11.000                     82         4,650,084.95                 0.53       688    95.81     95.97    10.662         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Minimum Rate: 6.150
Maximum Rate: 10.990
WA Rate: 7.278




--------------------------------------------------------------------------------

14. MAXIMUM RATE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
MAXIMUM RATE                   LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
<= 0.000                           959  $     94,455,227.05                10.79%      664    86.47%    91.80%     8.31%      98.00%
12.001 - 12.500                    565       163,792,617.59                18.71       670     80.6     94.99     6.385       99.54
12.501 - 13.000                  1,079       272,987,978.04                31.19       661    81.17     93.83     6.812       98.44
13.001 - 13.500                    676       148,758,883.15                16.99       649    82.18     92.21     7.301       96.48
13.501 - 14.000                    578       116,733,940.00                13.34       627    83.43     89.47     7.778       95.74
14.001 - 14.500                    212        36,473,454.18                 4.17       601    85.14     88.22       8.3       95.14
14.501 - 15.000                    178        25,320,255.76                 2.89       594    86.04     88.22     8.777       89.62
15.001 - 15.500                     75         8,748,752.32                    1       569    81.96     84.07     9.307       89.52
15.501 - 16.000                     50         5,340,258.61                 0.61       557    80.96     82.68     9.774       97.39
16.001 - 16.500                     24         2,166,217.49                 0.25       543    73.69     75.43    10.346         100
16.501 - 17.000                      6           554,361.15                 0.06       529    76.06     77.34    10.563         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Minimum Maximum Rate: 12.150
Maximum Maximum Rate: 16.600
WA Maximum Rate: 13.154




--------------------------------------------------------------------------------

15. GROSS MARGIN



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
GROSS MARGIN                   LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
<= 0.000                           959  $     94,455,227.05                10.79%      664    86.47%    91.80%     8.31%      98.00%
2.501 - 3.000                        4           568,912.57                 0.06       624     81.7     90.59       7.4         100
3.001 - 3.500                        5           697,013.10                 0.08       663       80       100     7.373         100
3.501 - 4.000                      130        21,730,998.77                 2.48       656    80.37     93.55     7.387       96.45
4.001 - 4.500                        5           956,977.46                 0.11       646    80.25     90.01     7.245         100
4.501 - 5.000                        2           869,029.40                  0.1       678    85.55     94.35      6.57         100
5.001 - 5.500                      754       192,941,611.12                22.04       631    82.76     91.64     7.094       99.63
5.501 - 6.000                    1,779       443,455,483.16                50.66       657    81.77     93.11      7.06       99.41
6.001 - 6.500                      763       119,540,837.70                13.66       645    81.31     90.89     7.557       86.13
6.501 - 7.000                        1           115,855.00                 0.01       634       85       100      6.85         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%


Minimum Gross Margin: 3.000
Maximum Gross Margin: 6.750
WA Gross Margin: 5.729




--------------------------------------------------------------------------------

16. NEXT RATE ADJUSTMENT DATE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
NEXT RATE ADJUSTMENT DATE      LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
0000-00                            959  $     94,455,227.05                10.79%      664    86.47%    91.80%     8.31%      98.00%
2007-07                              6         1,777,928.71                  0.2       638    81.85     99.55     6.879         100
2007-08                            279        76,007,127.57                 8.68       649    83.14     94.97     6.893        98.8
2007-09                          1,060       225,669,788.63                25.78       645    81.89     91.95     7.227       96.33
2007-10                          1,438       331,172,188.20                37.83       651    81.82     93.04     7.142       98.01
2007-11                            178        39,325,587.00                 4.49       659    81.93     92.84     7.244       95.53
2008-06                              1            60,825.39                 0.01       553    72.62     72.62      8.85         100
2008-07                              7         1,926,082.82                 0.22       623    79.85     87.12     6.669         100
2008-08                            132        29,871,117.00                 3.41       639    80.57     89.65     7.054       96.24
2008-09                            208        43,139,481.13                 4.93       639    81.97      90.1     7.374        97.5
2008-10                             91        19,454,457.93                 2.22       655    82.86      90.7     7.205        98.9
2008-11                              4           595,440.00                 0.07       687    81.04     94.71     6.987       78.77
2010-08                              6         2,398,629.33                 0.27       639    67.09     74.04     6.662         100
2010-09                             15         3,060,670.13                 0.35       669    81.12     90.34     6.771         100
2010-10                             15         5,572,294.46                 0.64       663    82.57     86.66     7.148       89.23
2010-11                              3           845,100.00                  0.1       673    78.33     78.33     6.874         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%





--------------------------------------------------------------------------------

17. ORIGINAL NUMBER OF MONTHS TO EXPIRATION OF PREPAYMENT PENALTY TERM



                                                                                                                           % OF
ORIGINAL NUMBER OF MONTHS TO                                                      WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
  EXPIRATION OF PREPAYMENT   NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
  PENALTY TERM                 LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
0 - 0                            1,001  $    158,264,952.06                18.08%      645    83.47%    91.59%     7.88%      97.60%
6-Jan                               91         9,853,157.07                 1.13       624    82.65     93.89     7.907        96.5
12-Jul                              72        20,384,220.19                 2.33       667    82.52     94.38     7.407        98.8
13 - 24                          2,726       586,881,337.93                67.05       653    82.47     93.16     7.124       97.49
25 - 36                            512        99,948,278.08                11.42       642    80.24     88.25     7.142       96.55
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%





--------------------------------------------------------------------------------

18. INDEX TYPE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
INDEX TYPE                     LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
Fixed Rate                         959  $     94,455,227.05                10.79%      664    86.47%    91.80%     8.31%      98.00%
1 YR Treasury Mortgage Index        39        11,876,693.92                 1.36       661    78.77     84.47     6.933       94.95
6 Month LIBOR Index              3,404       769,000,024.37                87.85       648    81.96     92.54     7.157       97.39
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%





--------------------------------------------------------------------------------

19. CREDIT GRADE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
CREDIT GRADE                   LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
A                                4,110  $    818,412,229.16                93.50%      655    82.83%    93.40%     7.23%      97.46%
A-                                 147        32,214,981.32                 3.68       592    79.71     80.57     7.752       97.25
B                                   96        17,305,012.54                 1.98       577    72.64     73.33     7.937       94.94
C                                   36         5,431,098.21                 0.62       563    70.44     73.64     8.996         100
D                                   13         1,968,624.11                 0.22       555    67.49     68.42     9.789         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%





--------------------------------------------------------------------------------

20. LIEN POSITION



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
LIEN POSITION                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
1                                3,810  $    841,387,685.73                96.12%      647    81.70%    92.06%     7.17%      97.32%
2                                  592        33,944,259.60                 3.88       715    99.64     99.64     9.996         100
TOTAL:                           4,402  $    875,331,945.33               100.00%      650    82.40%    92.35%     7.28%      97.42%





--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
                        10/22/2005 12:29

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.





                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  1,895 RECORDS
                              BALANCE: 535,919,237

--------------------------------------------------------------------------------

SELECTION CRITERIA: INTEREST ONLY LOANS
TABLE OF CONTENTS

  1. Principal balance at Origination
  2. Remaining Principal Balance
  3. Fico Scores
  4. Original Term
  5. Remaining Term
  6. Property Type
  7. Occupancy Status
  8. Loan Purpose
  9. Original Loan to Value Ratio
  10. Combined Loan to Value Ratio
  11. Geographic Distribution By Balance
  12. Documentation
  13. Mortgage Rate
  14. Maximum Rate
  15. Gross Margin
  16. Next Rate Adjustment Date
  17. Original Number of Months to Expiration Of Prepayment Penalty Term
  18. Index Type
  19. Credit Grade
  20. Lien Position

--------------------------------------------------------------------------------

1. PRINCIPAL BALANCE AT ORIGINATION



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
PRINCIPAL BALANCE AT         NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
ORIGINATION                    LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
50,001 - 75,000                     15  $        983,134.47                 0.18%      642    80.64%    94.76%     7.64%      85.86%
75,001 - 100,000                    43         3,836,473.00                 0.72       631     78.7     90.53     7.432       92.64
100,001 - 125,000                  116        13,176,655.78                 2.46       649    81.07     95.09     7.167       95.88
125,001 - 150,000                  147        20,310,608.02                 3.79       648    80.61      93.8     7.106       94.52
150,001 - 175,000                  157        25,523,345.47                 4.76       648    80.69     92.79     7.205       98.05
175,001 - 200,000                  163        30,631,291.43                 5.72       651    78.56     91.81     7.099       94.43
200,001 - 250,000                  260        58,233,968.98                10.87       653    80.43     92.35     7.186       96.14
250,001 - 300,000                  243        65,977,205.30                12.31       658    81.22     92.51     7.033       97.08
300,001 - 400,000                  403       139,085,777.39                25.95       663    82.04      93.2     6.853       98.92
400,001 - 500,000                  205        91,643,560.59                 17.1       669    83.08     94.01     6.913       97.58
500,001 - 600,000                   83        45,045,238.58                 8.41       677     83.3     94.43     6.839       98.67
600,001 - 700,000                   39        25,029,627.50                 4.67       672    84.09     95.22     6.793       97.57
700,001 >=                          21        16,442,350.00                 3.07       693    83.79     92.39     6.833         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Mimimum Original Balance: 51,300.00
Maximum Original Balance: 1,000,000.00
Average Original Balance: 282,810.53




--------------------------------------------------------------------------------

2. REMAINING PRINCIPAL BALANCE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
REMAINING PRINCIPAL BALANCE    LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE     FICO      LTV       CLTV     COUPON   BY BALANCE
50,001 - 75,000                     15  $        983,134.47                 0.18%      642    80.64%    94.76%     7.64%      85.86%
75,001 - 100,000                    43         3,836,473.00                 0.72       631     78.7     90.53     7.432       92.64
100,001 - 125,000                  116        13,176,655.78                 2.46       649    81.07     95.09     7.167       95.88
125,001 - 150,000                  147        20,310,608.02                 3.79       648    80.61      93.8     7.106       94.52
150,001 - 175,000                  157        25,523,345.47                 4.76       648    80.69     92.79     7.205       98.05
175,001 - 200,000                  163        30,631,291.43                 5.72       651    78.56     91.81     7.099       94.43
200,001 - 250,000                  260        58,233,968.98                10.87       653    80.43     92.35     7.186       96.14
250,001 - 300,000                  243        65,977,205.30                12.31       658    81.22     92.51     7.033       97.08
300,001 - 400,000                  403       139,085,777.39                25.95       663    82.04      93.2     6.853       98.92
400,001 - 500,000                  205        91,643,560.59                 17.1       669    83.08     94.01     6.913       97.58
500,001 - 600,000                   83        45,045,238.58                 8.41       677     83.3     94.43     6.839       98.67
600,001 - 700,000                   39        25,029,627.50                 4.67       672    84.09     95.22     6.793       97.57
700,001 >=                          21        16,442,350.00                 3.07       693    83.79     92.39     6.833         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Mimimum Remaining Balance: 51,300.00
Maximum Remaining Balance: 1,000,000.00
Average Remaining Balance: 282,806.98




--------------------------------------------------------------------------------

3. FICO SCORES



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
FICO SCORES                    LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
526 - 550                            5  $      1,310,400.00                 0.24%      550    75.73%    77.34%     7.18%     100.00%
551 - 575                          107        25,809,991.62                 4.82       562    77.24     78.09      7.72       98.36
576 - 600                          115        28,295,255.37                 5.28       589    77.66     80.76     7.282       98.39
601 - 625                          291        73,623,983.57                13.74       614    81.98     90.18     7.057       97.77
626 - 650                          320        83,253,668.33                15.53       639    82.44     92.62     7.018       98.15
651 - 675                          393       116,180,796.66                21.68       664    82.33     96.22     6.921       97.26
676 - 700                          310        94,972,788.40                17.72       687    82.36     96.53     6.855       97.08
701 - 725                          175        54,897,332.65                10.24       711    82.74     97.16     6.803        97.3
726 - 750                           97        32,748,204.74                 6.11       736    82.63     96.51     6.692       95.13
751 - 775                           56        16,967,510.17                 3.17       762     81.9     96.07     6.886       98.32
776 - 800                           23         6,201,805.00                 1.16       786    80.35     98.23     6.731         100
801 - 825                            3         1,657,500.00                 0.31       804    85.51     97.88     6.547         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Minimum FICO: 550
Maximum FICO: 805
WA FICO: 662




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4. ORIGINAL TERM



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
ORIGINAL TERM                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
301 - 360                        1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Minimum Original Term: 360
Maximum Original Term: 360
WA Original Term: 360




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5. REMAINING TERM



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
REMAINING TERM                 LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
349 - 360                        1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Minimum Remaining Term: 356
Maximum Remaining Term: 360
WA Remaining Term: 358




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6. PROPERTY TYPE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
PROPERTY TYPE                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
Single Family Detached           1,267  $    359,304,891.40                67.04%      661    81.83%    93.45%     6.95%      98.39%
Planned Unit Development           326        88,609,223.03                16.53       656    81.83      92.5     7.021        97.3
Condominium                        179        43,980,077.08                 8.21       665    81.88     95.15     6.952       98.14
Two-to-Four Family                 108        41,262,145.00                  7.7       683    81.85     91.62     7.034       90.01
Single Family Attached              10         1,850,860.00                 0.35       688     82.8     97.24     7.077       96.54
Townhouse                            4           507,040.00                 0.09       674    79.81     91.57     7.244       57.87
Manufactured Home                    1           405,000.00                 0.08       637    69.83     69.83     6.675         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%





--------------------------------------------------------------------------------

7. OCCUPANCY STATUS



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
OCCUPANCY STATUS               LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
Primary Home                     1,837  $    522,540,798.51                97.50%      662    81.97%    93.70%     6.96%     100.00%
Investment Property                 58        13,378,438.00                  2.5       669    76.49     77.03     7.554           0
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%





--------------------------------------------------------------------------------

8. LOAN PURPOSE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
LOAN PURPOSE                   LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
Purchase                         1,199  $    336,546,084.15                62.80%      676    82.23%    97.63%     6.90%      98.48%
Refinance - Rate/Term              530       150,084,918.70                28.01       641    81.12     86.11      7.11       95.27
Refinance - Cashout                166        49,288,233.66                  9.2       633    81.28     85.47     7.052        97.6
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%





--------------------------------------------------------------------------------

9. ORIGINAL LOAN TO VALUE RATIO



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
ORIGINAL LOAN TO VALUE       NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
RATIO                          LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
<= 50.00                            17  $      3,663,869.38                 0.68%      603    43.92%    43.92%     7.11%      93.48%
50.01 - 60.00                       27         6,259,398.63                 1.17       600    55.58     55.58     7.053       96.63
60.01 - 70.00                       65        17,393,588.01                 3.25       624    67.43     67.71     7.089       85.03
70.01 - 80.00                    1,111       287,789,242.04                 53.7       666     79.6     95.14     6.882       96.96
80.01 - 90.00                      636       209,200,564.02                39.04       663    86.84     94.78     7.051       99.25
90.01 - 100.00                      39        11,612,574.43                 2.17       655    94.63     94.63     7.469         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Minimum Loan-to-Value Ratio: 30.59
Maximum Loan-to-Value Ratio: 95.00
WA Loan-to-Value Ratio By Original Balance: 81.83




--------------------------------------------------------------------------------

10. COMBINED LOAN TO VALUE RATIO



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
COMBINED LOAN TO             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
VALUE RATIO                    LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
<= 50.00                            17  $      3,663,869.38                 0.68%      603    43.92%    43.92%     7.11%      93.48%
50.01 - 60.00                       27         6,259,398.63                 1.17       600    55.58     55.58     7.053       96.63
60.01 - 70.00                       62        17,172,583.54                  3.2       624    67.45     67.45     7.082       85.44
70.01 - 80.00                      207        58,468,875.63                10.91       630    78.24     78.26     7.186       86.52
80.01 - 90.00                      311        93,604,613.49                17.47       640    87.63     88.27     7.274        97.4
90.01 - 100.00                   1,271       356,749,895.84                66.57       677    82.44     99.48     6.848       99.97
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Minimum Combined Loan-to-Value Ratio: 30.59
Maximum Combined Loan-to-Value Ratio: 100.00
WA Combined Loan-to-Value Ratio: 93.29




--------------------------------------------------------------------------------

11. GEOGRAPHIC DISTRIBUTION BY BALANCE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
GEOGRAPHIC DISTRIBUTION      NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
BY BALANCE                     LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
California                         825  $    299,660,859.65                55.92%      670    81.76%    93.24%     6.79%      98.09%
Arizona                            184        41,166,349.69                 7.68       645    81.29     90.86     7.146       95.66
Washington                         140        29,435,026.64                 5.49       649     82.5     93.92      7.12       94.18
Illinois                           116        28,903,670.55                 5.39       665    82.23     93.97     7.478       98.06
Florida                            120        26,967,745.57                 5.03       657     81.7     93.19     7.182       97.48
Colorado                           108        19,638,938.69                 3.66       655    81.73     95.47     7.065       94.16
Virginia                            44        14,266,515.00                 2.66       668    81.57     93.71     7.008       98.95
Maryland                            49        13,183,621.42                 2.46       654    80.36     91.65     7.393       97.57
Massachusetts                       35        10,993,875.00                 2.05       649    83.01     90.44     7.373       97.78
Nevada                              36         8,226,386.93                 1.54       647    80.86      91.5     6.851       93.88
Other                              238        43,476,247.37                 8.11       646    82.67     95.54      7.21       98.72
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Total Number Of Stated Represented:: 34





--------------------------------------------------------------------------------

12. DOCUMENTATION



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
DOCUMENTATION                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
Stated Income Wage Earner          680  $    206,726,731.07                38.57%      687    81.90%    94.99%     7.02%      98.16%
Full Documentation                 752       172,087,632.70                32.11       630    81.72     90.82      6.92       97.58
Stated Income Self-Employed        334       116,812,375.75                 21.8       676    81.73      94.2     6.935        97.2
12 Month Bank Statements            90        27,934,914.00                 5.21       635    82.42     92.52     7.074       95.41
24 Month Bank Statements            30         9,694,530.99                 1.81       623    82.88     91.64     7.077       91.11
Limited Documentation                9         2,663,052.00                  0.5       648    78.27     94.83     6.917         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%





--------------------------------------------------------------------------------

13. MORTGAGE RATE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
MORTGAGE RATE                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
6.001 - 6.500                      450  $    143,091,426.03                26.70%      674    80.80%    95.08%     6.38%      99.47%
6.501 - 7.000                      725       213,478,434.23                39.83       669    81.65     94.23     6.807       98.27
7.001 - 7.500                      355        93,717,265.69                17.49       660    82.28     92.38     7.294       96.02
7.501 - 8.000                      242        60,191,288.15                11.23       635    83.52     89.78      7.77       96.62
8.001 - 8.500                       67        13,466,818.64                 2.51       618    84.25      88.5     8.258       92.34
8.501 - 9.000                       44         9,236,053.77                 1.72       617    84.19     86.69     8.756       82.63
9.001 - 9.500                       10         2,311,650.00                 0.43       587    78.01     79.94     9.323       76.92
9.501 - 10.000                       2           426,300.00                 0.08       558    76.81     76.81     9.912         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Minimum Rate: 6.150
Maximum Rate: 10.000
WA Rate: 6.971




--------------------------------------------------------------------------------

14. MAXIMUM RATE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
MAXIMUM RATE                   LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
<= 0.000                            37  $      9,334,011.68                 1.74%      651    80.22%    88.37%     7.02%      92.20%
12.001 - 12.500                    443       141,204,576.03                26.35       674    80.81     95.16     6.384       99.47
12.501 - 13.000                    713       209,557,763.93                 39.1       669    81.66     94.31     6.807       98.24
13.001 - 13.500                    345        91,778,383.69                17.13       660    82.31     92.51     7.294       96.57
13.501 - 14.000                    236        58,925,218.15                   11       635    83.54     89.77      7.77       96.79
14.001 - 14.500                     66        13,340,168.64                 2.49       617    84.24     88.39      8.26       92.26
14.501 - 15.000                     43         9,041,164.39                 1.69       618    85.03     87.59     8.761       82.26
15.001 - 15.500                     10         2,311,650.00                 0.43       587    78.01     79.94     9.323       76.92
15.501 - 16.000                      2           426,300.00                 0.08       558    76.81     76.81     9.912         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Minimum Maximum Rate: 12.150
Maximum Maximum Rate: 16.000
WA Maximum Rate: 12.970




--------------------------------------------------------------------------------

15. GROSS MARGIN



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
GROSS MARGIN                   LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
<= 0.000                            37  $      9,334,011.68                 1.74%      651    80.22%    88.37%     7.02%      92.20%
2.501 - 3.000                        1           184,000.00                 0.03       658       80        95      7.24         100
3.001 - 3.500                        1           147,920.00                 0.03       661       80       100       7.5         100
3.501 - 4.000                       41         8,205,097.00                 1.53       664    79.95     93.33     7.356       95.62
4.501 - 5.000                        1           509,915.00                  0.1       676       85       100      6.25         100
5.001 - 5.500                      257        95,329,210.21                17.79       654    82.58      92.9     6.829       99.39
5.501 - 6.000                    1,232       353,450,810.56                65.95       665    81.87     93.99     6.939       99.79
6.001 - 6.500                      324        68,642,417.06                12.81       662    81.03     90.77     7.284          84
6.501 - 7.000                        1           115,855.00                 0.02       634       85       100      6.85         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%


Minimum Gross Margin: 3.000
Maximum Gross Margin: 6.750
WA Gross Margin: 5.756




--------------------------------------------------------------------------------

16. NEXT RATE ADJUSTMENT DATE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
NEXT RATE ADJUSTMENT DATE      LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
0000-00                             37  $      9,334,011.68                 1.74%      651    80.22%    88.37%     7.02%      92.20%
2007-07                              5         1,411,335.00                 0.26       643    82.33     99.43     7.042         100
2007-08                            173        54,732,307.10                10.21       659    82.56     95.79     6.756       98.34
2007-09                            530       144,305,315.68                26.93       660    81.84        93      7.04       96.92
2007-10                            814       232,921,000.00                43.46       665    82.03     94.08      6.96       98.19
2007-11                             86        24,353,062.00                 4.54       673    81.47     94.12     6.984       96.08
2008-07                              6         1,676,850.00                 0.31       634    80.62     88.98      6.56         100
2008-08                             72        19,086,520.75                 3.56       653    80.04     88.97     6.922       94.52
2008-09                             96        25,388,286.84                 4.74       654    80.71     90.22     7.154       98.13
2008-10                             43        12,888,588.00                  2.4       673    82.54     90.53     6.986         100
2008-11                              2           407,120.00                 0.08       696       80       100     6.484         100
2010-08                              5         1,201,899.46                 0.22       631    71.83     78.06     6.823         100
2010-09                              9         1,980,370.00                 0.37       676    81.61     93.48     6.667         100
2010-10                             14         5,387,470.00                 1.01       664    83.14     87.37     7.179       88.86
2010-11                              3           845,100.00                 0.16       673    78.33     78.33     6.874         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%





--------------------------------------------------------------------------------

17. ORIGINAL NUMBER OF MONTHS TO EXPIRATION OF PREPAYMENT PENALTY TERM



                                                                                                                            % OF
ORIGINAL NUMBER OF                                                                WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
MONTHS TO EXPIRATION         NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
OF PREPAYMENT PENALTY TERM     LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE     FICO      LTV       CLTV     COUPON   BY BALANCE
0 - 0                              240  $     62,604,953.14                11.68%      657    81.90%    92.30%     7.51%      97.28%
6-Jan                                7         1,331,263.00                 0.25       649    80.89      99.2     7.249         100
12-Jul                              48        14,588,525.40                 2.72       667     81.9      95.3     7.348       98.33
13 - 24                          1,441       414,662,025.57                77.37       663    81.86     93.78     6.877        97.8
25 - 36                            159        42,732,469.40                 7.97       660    81.43     89.11     6.951       94.57
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%





--------------------------------------------------------------------------------

18. INDEX TYPE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
INDEX TYPE                     LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
Fixed Rate                          37  $      9,334,011.68                 1.74%      651    80.22%    88.37%     7.02%      92.20%
1 YR Treasury Mortgage Index        31         9,414,839.46                 1.76       663    80.94     86.66     6.998       93.63
6 Month LIBOR Index              1,827       517,170,385.37                 96.5       662    81.88      93.5     6.969       97.67
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%





--------------------------------------------------------------------------------

19. CREDIT GRADE



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
CREDIT GRADE                   LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
A                                1,771  $    503,781,776.72                94.00%      667    82.14%    94.25%     6.93%      97.52%
A-                                  78        20,877,447.62                  3.9       595     80.1        81     7.562       97.88
B                                   37         8,816,264.17                 1.65       582    71.37     71.86     7.602       95.26
C                                    7         1,820,448.00                 0.34       616    73.13      81.5     7.932         100
D                                    2           623,300.00                 0.12       596    64.42     64.42     9.185         100
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%





--------------------------------------------------------------------------------

20. LIEN POSITION



                                                                                                                            % OF
                                                                                  WEIGHTED WEIGHTED  WEIGHTED  WEIGHTED    OWNER
                             NUMBER OF  AGGREGATE REMAINING % LOANS BY REMAINING  AVERAGE  AVERAGE   AVERAGE   AVERAGE    OCCUPIED
LIEN POSITION                  LOANS     PRINCIPAL BALANCE   PRINCIPAL BALANCE      FICO     LTV       CLTV     COUPON   BY BALANCE
1                                1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%
TOTAL:                           1,895  $    535,919,236.51               100.00%      662    81.83%    93.29%     6.97%      97.50%





--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
                   10/22/2005 12:30

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
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consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
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involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.


                   ASSET BACKED SECURITIES PORTFOLIO ANALYSIS
                           FIELDSTONE MORTGAGE COMPANY
                            MORTGAGE PORTFOLIO 2005-3
                                  1,895 RECORDS
                              BALANCE: 535,919,237

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SELECTION CRITERIA: INTEREST ONLY LOANS
TABLE OF CONTENTS

1. Collateral Aggregate Summary
2. Maturity Date
3. Lien Position
4. Occupancy
5. Loan Type
6. Year Of Origination
7. Loan Purpose
8. Property Type
9. Lien
10. Range of Mortgage Rates
11. Original Term
12. Remaining Term To Stated Maturity
13. Range of Outstanding Mortgage Loan Principal Balances
14. Range of Outstanding Mortgage Loan Principal Balances
15. Product Type
16. Amortization Type
17. Loan Program
18. State Distribution of Mortgaged Properties
19. Range of Original Loan-to-Value Ratios
20. Range of Combined Loan-to-Value Ratios (IO Loans)
21. Loan Purpose
22. Types of Mortgaged Property Types
23. Documentation Summary
24. Occupancy Types
25. Mortgage Loan Age (Months)
26. Original Prepayment Penalty Term
27. Range of Credit Scores
28. Credit Grade Summary
29. Range of Gross Margins
30. Range of Maximum Mortgage Rates
31. Next Rate Adjustment Date
32. Zip Code
33. Initial Interest Rate Cap
34. Periodic Rate Cap
35. Min Mortgage Rate
36. Months to Roll

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1. COLLATERAL AGGREGATE SUMMARY

Aggregate Outstanding Principal Balance: $535,919,237.
Aggregate Original Principal Balance: $535,925,948.
Number Of Mortgage Loans: 1,895




--------------------------------------------------------------------------------

2. MATURITY DATE

Earliest: 20350701
Latest: 20351101




--------------------------------------------------------------------------------

3. LIEN POSITION



LIEN POSITION                            PERCENT OF MORTGAGE POOL
First Lien                                                 100.00%
TOTAL:                                                     100.00%





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4. OCCUPANCY



OCCUPANCY                                PERCENT OF MORTGAGE POOL
Investment Property                                          2.50%
Primary Home                                                 97.5
TOTAL:                                                     100.00%





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5. LOAN TYPE



LOAN TYPE                                PERCENT OF MORTGAGE POOL
ARM                                                         98.26%
FIXED                                                        1.74
TOTAL:                                                     100.00%





--------------------------------------------------------------------------------

6. YEAR OF ORIGINATION



YEAR OF ORIGINATION                      PERCENT OF MORTGAGE POOL
2005                                                       100.00%
TOTAL:                                                     100.00%





--------------------------------------------------------------------------------

7. LOAN PURPOSE



LOAN PURPOSE                             PERCENT OF MORTGAGE POOL
Purchase                                                    62.80%
Refinance - Cashout                                           9.2
Refinance - Rate/Term                                       28.01
TOTAL:                                                     100.00%





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8. PROPERTY TYPE



PROPERTY TYPE                            PERCENT OF MORTGAGE POOL
Condominium                                                  8.21%
Manufactured Home                                            0.08
Planned Unit Development                                    16.53
Single Family Attached                                       0.35
Single Family Detached                                      67.04
Townhouse                                                    0.09
Two-to-Four Family                                            7.7
TOTAL:                                                     100.00%





--------------------------------------------------------------------------------

9. LIEN



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
LIEN                           LOANS       OUTSTANDING        POOL      COUPON      SCORE   OUTSTANDING      LTV     DOCUMENTATION
1                                1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%





--------------------------------------------------------------------------------

10. RANGE OF MORTGAGE RATES



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
RANGE OF MORTGAGE RATES        LOANS       OUTSTANDING        POOL      COUPON      SCORE   OUTSTANDING      LTV     DOCUMENTATION
6.001% to 6.500%                   450   $143,091,426.03        26.70%      6.38%      674 $  317,980.95      80.80%          39.37%
6.501% to 7.000%                   725    213,478,434.23        39.83      6.807       669    294,453.01      81.65            29.1
7.001% to 7.500%                   355     93,717,265.69        17.49      7.294       660    263,992.30      82.28           30.15
7.501% to 8.000%                   242     60,191,288.15        11.23       7.77       635    248,724.33      83.52           27.75
8.001% to 8.500%                    67     13,466,818.64         2.51      8.258       618    200,997.29      84.25           34.41
8.501% to 9.000%                    44      9,236,053.77         1.72      8.756       617    209,910.31      84.19           35.25
9.001% to 9.500%                    10      2,311,650.00         0.43      9.323       587    231,165.00      78.01           32.11
9.501% to 10.000%                    2        426,300.00         0.08      9.912       558    213,150.00      76.81           12.03
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%


Maximum Mortgage Rate: 10.000%
Minimum Mortgage Rate: 6.150%
WA Mortgage Rate: 6.971%




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11. ORIGINAL TERM



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
ORIGINAL TERM                  LOANS       OUTSTANDING        POOL      COUPON      SCORE   OUTSTANDING      LTV     DOCUMENTATION
349 - 360                        1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%


Maximum Original Term: 360
Minimum Original Term: 360
WA Original Term: 360




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12. REMAINING TERM TO STATED MATURITY



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
REMAINING TERM TO STATED      MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
MATURITY                       LOANS       OUTSTANDING        POOL      COUPON      SCORE   OUTSTANDING      LTV     DOCUMENTATION
349 - 360                        1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%


Maximum Remaining Term: 360
Minimum Remaining Term: 356
WA Remaining Term: 358




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13. RANGE OF OUTSTANDING MORTGAGE LOAN PRINCIPAL BALANCES



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
RANGE OF OUTSTANDING         NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
MORTGAGE LOAN                 MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
PRINCIPAL BALANCES             LOANS       OUTSTANDING        POOL      COUPON      SCORE   OUTSTANDING      LTV     DOCUMENTATION
$50,000.01 to $100,000.00           58   $  4,819,607.47         0.90%      7.47%      633 $   83,096.68      79.10%          63.78%
$100,000.01 to $150,000.00         263     33,487,263.80         6.25       7.13       648    127,328.00      80.79           66.09
$150,000.01 to $200,000.00         320     56,154,636.90        10.48      7.147       649    175,483.24      79.53           54.22
$200,000.01 to $250,000.00         260     58,233,968.98        10.87      7.186       653    223,976.80      80.43           43.55
$250,000.01 to $300,000.00         243     65,977,205.30        12.31      7.033       658    271,511.13      81.22           34.24
$300,000.01 to $350,000.00         227     73,266,214.96        13.67      6.873       662    322,758.66      82.11           28.47
$350,000.01 to $400,000.00         176     65,819,562.43        12.28      6.831       665    373,974.79      81.97           29.03
$400,000.01 to $450,000.00         117     49,780,433.59         9.29      6.994       668    425,473.79      82.91           19.51
$450,000.01 to $500,000.00          88     41,863,127.00         7.81      6.816       670    475,717.35      83.29           12.65
$500,000.01 to $550,000.00          48     25,000,774.58         4.67        6.8       671    520,849.47      82.84            8.38
$550,000.01 to $600,000.00          35     20,044,464.00         3.74      6.887       685    572,698.97      83.87            5.74
$600,000.01 to $650,000.00          29     18,269,509.00         3.41      6.811       675    629,983.07      84.82            23.8
$650,000.01 to $700,000.00          10      6,760,118.50         1.26      6.747       664    676,011.85      82.12               0
$700,000.01 to $750,000.00          11      7,987,750.00         1.49      6.849       715    726,159.09      82.94           18.64
$750,000.01 to $800,000.00           3      2,383,400.00         0.44      6.846       682    794,466.67      87.67               0
$800,000.01 to $850,000.00           4      3,325,000.00         0.62      6.762       675    831,250.00      84.86           50.38
$850,000.01 to $900,000.00           2      1,746,200.00         0.33      6.872       656    873,100.00      82.48             100
$950,000.01 to $1,000,000.00         1      1,000,000.00         0.19       6.85       669  1,000,000.00         80             100
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%


Maximum Remaining Balance: $1,000,000.00
Minimum Remaining Balance: $51,300.00
Average Remaining Balance: $282,806.98




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14. RANGE OF OUTSTANDING MORTGAGE LOAN PRINCIPAL BALANCES



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
RANGE OF OUTSTANDING         NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
MORTGAGE LOAN                 MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
PRINCIPAL BALANCES             LOANS       OUTSTANDING        POOL      COUPON      SCORE   OUTSTANDING      LTV     DOCUMENTATION
$50,000.01 to $75,000.00            15   $    983,134.47         0.18%      7.64%      642 $   65,542.30      80.64%          74.11%
$75,000.01 to $100,000.00           43      3,836,473.00         0.72      7.432       631     89,220.30       78.7           61.13
$100,000.01 to $125,000.00         116     13,176,655.78         2.46      7.167       649    113,591.86      81.07           63.85
$125,000.01 to $150,000.00         147     20,310,608.02         3.79      7.106       648    138,167.40      80.61           67.54
$150,000.01 to $175,000.00         157     25,523,345.47         4.76      7.205       648    162,569.08      80.69           60.69
$175,000.01 to $200,000.00         163     30,631,291.43         5.72      7.099       651    187,922.03      78.56           48.84
$200,000.01 to $225,000.00         141     29,904,727.81         5.58      7.147       654    212,090.27       80.6           48.95
$225,000.01 to $250,000.00         119     28,329,241.17         5.29      7.227       652    238,060.85      80.25           37.85
$250,000.01 to $275,000.00         153     40,109,506.34         7.48       7.03       659    262,153.64      81.43           34.17
$275,000.01 to $300,000.00          90     25,867,698.96         4.83      7.038       656    287,418.88       80.9           34.36
$300,000.01 to $325,000.00         128     39,856,642.30         7.44      6.879       660    311,380.02      83.06            31.3
$325,000.01 to $350,000.00          99     33,409,572.66         6.23      6.865       664    337,470.43      80.97           25.08
$350,000.01 to $375,000.00          99     35,956,765.65         6.71      6.836       665    363,199.65      82.46           28.29
$375,000.01 to $400,000.00          77     29,862,796.78         5.57      6.824       664    387,828.53      81.38           29.93
$400,000.01 to $425,000.00          63     26,077,343.59         4.87      6.952       666    413,926.09      82.97           23.75
$425,000.01 to $450,000.00          54     23,703,090.00         4.42      7.041       669    438,946.11      82.83           14.85
$450,000.01 to $475,000.00          42     19,492,657.00         3.64      6.749       675    464,110.88      82.68            9.59
$475,000.01 to $500,000.00          46     22,370,470.00         4.17      6.874       667    486,314.57      83.82           15.33
$500,000.01 to $525,000.00          31     15,841,939.58         2.96      6.778       678    511,030.31      82.89            6.46
$525,000.01 to $550,000.00          17      9,158,835.00         1.71       6.84       659    538,755.00      82.76           11.68
$550,000.01 to $575,000.00          22     12,366,564.00         2.31      6.821       682    562,116.55      84.17            4.51
$575,000.01 to $600,000.00          13      7,677,900.00         1.43      6.993       689    590,607.69       83.4            7.72
$600,000.01 to $625,000.00          10      6,139,684.00         1.15      6.733       673    613,968.40      82.12           39.61
$625,000.01 to $650,000.00          19     12,129,825.00         2.26       6.85       676    638,411.84      86.19            15.8
$650,000.01 to $675,000.00           3      1,956,200.00         0.37      6.775       689    652,066.67      86.67               0
$675,000.01 to $700,000.00           7      4,803,918.50          0.9      6.736       654    686,274.07      80.27               0
$700,000.01 to $725,000.00           7      5,004,750.00         0.93      6.952       729    714,964.29      83.64               0
$725,000.01 to $750,000.00           4      2,983,000.00         0.56      6.674       692    745,750.00      81.77           49.92
$775,000.01 to $800,000.00           3      2,383,400.00         0.44      6.846       682    794,466.67      87.67               0
$800,000.01 to $825,000.00           2      1,635,000.00         0.31      6.826       664    817,500.00      87.29           50.46
$825,000.01 to $850,000.00           2      1,690,000.00         0.32        6.7       686    845,000.00      82.51            50.3
$850,000.01 to $875,000.00           1        867,000.00         0.16       7.25       697    867,000.00         85             100
$875,000.01 to $900,000.00           1        879,200.00         0.16        6.5       615    879,200.00         80             100
$975,000.01 to $1,000,000.00         1      1,000,000.00         0.19       6.85       669  1,000,000.00         80             100
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%


Maximum Remaining Balance: $1,000,000.00
Minimum Remaining Balance: $51,300.00
Average Remaining Balance: $282,806.98




--------------------------------------------------------------------------------

15. PRODUCT TYPE



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
PRODUCT TYPE                   LOANS       OUTSTANDING        POOL      COUPON      SCORE   OUTSTANDING      LTV     DOCUMENTATION
2/28 LIBOR IO ARM                1,608   $457,723,019.78        85.41%      6.96%      663 $  284,653.62      82.01%          29.47%
3/27 LIBOR IO ARM                  219     59,447,365.59        11.09      7.022       657    271,449.16      80.88            44.3
5/1 TREASURY IO ARM                 31      9,414,839.46         1.76      6.998       663    303,704.50      80.94           57.94
Fixed IO                            37      9,334,011.68         1.74      7.015       651    252,270.59      80.22           57.73
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%





--------------------------------------------------------------------------------

16. AMORTIZATION TYPE



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
AMORTIZATION TYPE              LOANS       OUTSTANDING        POOL      COUPON      SCORE   OUTSTANDING      LTV     DOCUMENTATION
5 Year IO                        1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%





--------------------------------------------------------------------------------

17. LOAN PROGRAM



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
LOAN PROGRAM                   LOANS       OUTSTANDING        POOL      COUPON      SCORE   OUTSTANDING      LTV     DOCUMENTATION
High Street                        280   $ 71,133,488.65        13.27%      6.94%      636 $  254,048.17      83.00%          56.75%
Main Street                        200     48,540,475.50         9.06      7.599       583    242,702.38      80.63           63.68
Wall Street                      1,415    416,245,272.36        77.67      6.902       676    294,166.27      81.77           24.22
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%





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18. STATE DISTRIBUTION OF MORTGAGED PROPERTIES



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
STATE DISTRIBUTION OF         MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
MORTGAGED PROPERTIES           LOANS       OUTSTANDING        POOL      COUPON      SCORE   OUTSTANDING      LTV     DOCUMENTATION
Arizona                            184   $ 41,166,349.69         7.68%      7.15%      645 $  223,730.16      81.29%          52.82%
California                         825    299,660,859.65        55.92      6.791       670    363,225.28      81.76           20.27
Colorado                           108     19,638,938.69         3.66      7.065       655    181,842.02      81.73           52.35
Florida                            120     26,967,745.57         5.03      7.182       657    224,731.21       81.7           35.48
Georgia                             40      6,643,959.80         1.24      7.277       633    166,099.00      83.73            62.7
Idaho                                9      1,225,312.00         0.23      6.744       646    136,145.78         80           58.93
Illinois                           116     28,903,670.55         5.39      7.478       665    249,169.57      82.23           37.67
Indiana                              3        461,067.00         0.09      7.081       633    153,689.00      81.26            75.8
Iowa                                 2        240,000.00         0.04      7.791       604    120,000.00      81.98             100
Kansas                               7      1,331,263.00         0.25      7.249       649    190,180.43      80.89           42.37
Maryland                            49     13,183,621.42         2.46      7.393       654    269,053.50      80.36           37.38
Massachusetts                       35     10,993,875.00         2.05      7.373       649    314,110.71      83.01           28.41
Michigan                            23      4,297,608.41          0.8      7.773       644    186,852.54       84.9           55.68
Minnesota                           29      6,372,139.00         1.19      6.865       661    219,728.93      81.24           57.07
Missouri                            26      4,386,784.99         0.82       7.49       626    168,722.50      84.41           49.71
Nebraska                             1        145,600.00         0.03       7.25       619    145,600.00         80             100
Nevada                              36      8,226,386.93         1.54      6.851       647    228,510.75      80.86           66.66
New Hampshire                        4        788,815.00         0.15      7.391       662    197,203.75      84.92           21.68
New Jersey                           6      1,565,392.17         0.29      7.571       641    260,898.70      76.64           50.95
New Mexico                           1        157,250.00         0.03        7.3       630    157,250.00         85             100
North Carolina                       5        612,408.00         0.11      7.186       640    122,481.60      83.37           86.61
Oklahoma                             4        574,240.00         0.11      6.764       655    143,560.00         80             100
Oregon                              25      5,430,289.00         1.01      6.897       651    217,211.56      81.92           43.74
Pennsylvania                         4        722,320.00         0.13       6.86       647    180,580.00       81.5           59.69
Rhode Island                         8      1,680,020.00         0.31      6.675       665    210,002.50      81.82           18.21
South Carolina                       1        123,250.00         0.02       7.25       626    123,250.00         85             100
Tennessee                            5        805,700.00         0.15      8.577       614    161,140.00      89.26           44.26
Texas                               23      3,302,997.00         0.62      6.973       653    143,608.57      81.41           52.79
Utah                                 8      1,930,957.00         0.36       7.31       666    241,369.63      86.15           40.02
Vermont                              1        272,000.00         0.05       8.75       656    272,000.00         80               0
Washington                         140     29,435,026.64         5.49       7.12       649    210,250.19       82.5           59.68
Virginia                            44     14,266,515.00         2.66      7.008       668    324,238.98      81.57           32.92
Wisconsin                            2        248,875.00         0.05      7.671       633    124,437.50      81.44           74.11
Wyoming                              1        158,000.00         0.03       6.55       633    158,000.00         79             100
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662 $  282,806.98      81.83%          32.11%





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19. RANGE OF ORIGINAL LOAN-TO-VALUE RATIOS



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
RANGE OF ORIGINAL             MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
LOAN-TO-VALUE RATIOS           LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING      LTV     DOCUMENTATION
50.00% or less                      17   $  3,663,869.38         0.68%      7.11%      603  $ 215,521.73      43.92%          54.01%
50.01% to 55.00%                    12      2,757,599.46         0.51      6.889       617    229,799.96      53.16            44.8
55.01% to 60.00%                    15      3,501,799.17         0.65      7.183       587    233,453.28      57.49           81.75
60.01% to 65.00%                    16      4,451,805.00         0.83      7.071       624    278,237.81      62.69            34.1
65.01% to 70.00%                    49     12,941,783.01         2.41      7.095       624    264,118.02      69.06           39.43
70.01% to 75.00%                    50     12,967,239.93         2.42      7.169       617    259,344.80      73.58           41.59
75.01% to 80.00%                 1,061    274,822,002.11        51.28      6.868       668    259,021.68      79.88           30.16
80.01% to 85.00%                   358    123,029,635.75        22.96      6.891       674    343,658.20      84.82           21.16
85.01% to 90.00%                   278     86,170,928.27        16.08       7.28       649    309,967.37      89.73           43.72
90.01% to 95.00%                    39     11,612,574.43         2.17      7.469       655    297,758.32      94.63           63.81
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%


Maximum LTV: 95.00
Minimum LTV: 30.59
WA LTV: 81.83




--------------------------------------------------------------------------------

20. RANGE OF COMBINED LOAN-TO-VALUE RATIOS (IO LOANS)



                                            AGGREGATE                             WEIGHTED     AVERAGE    WEIGHTED
RANGE OF COMBINED            NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
LOAN-TO-VALUE RATIOS          MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT      BALANCE    ORIGINAL        FULL
(IO LOANS)                      LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING      LTV     DOCUMENTATION
<= 50.00%                           17   $  3,663,869.38         0.68%      7.11%      603  $ 215,521.73      43.92%          54.01%
50.01% - 55.00%                     12      2,757,599.46         0.51      6.889       617    229,799.96      53.16            44.8
55.01% - 60.00%                     15      3,501,799.17         0.65      7.183       587    233,453.28      57.49           81.75
60.01% - 65.00%                     15      4,348,400.00         0.81      7.067       623    289,893.33       62.7           34.91
65.01% - 70.00%                     47     12,824,183.54         2.39      7.087       624    272,854.97      69.05           39.36
70.01% - 75.00%                     44     12,293,319.93         2.29      7.163       616    279,393.63      73.46           41.64
75.01% - 80.00%                    163     46,175,555.70         8.62      7.193       634    283,285.62      79.52           37.62
80.01% - 85.00%                     91     25,979,024.17         4.85      7.108       640    285,483.78      84.37           48.64
85.01% - 90.00%                    220     67,625,589.32        12.62      7.338       639    307,389.04      88.88           44.08
90.01% - 95.00%                    100     31,191,734.43         5.82      7.224       667    311,917.34      87.01           38.94
95.01% - 100.00%                 1,171    325,558,161.41        60.75      6.812       678    278,017.22         82            25.3
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%


Maximum CLTV: 100.00
Minimum CLTV: 30.59
WA CLTV: 93.29




--------------------------------------------------------------------------------

21. LOAN PURPOSE



                                            AGGREGATE                             WEIGHTED     AVERAGE    WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT      BALANCE    ORIGINAL        FULL
LOAN PURPOSE                   LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING      LTV     DOCUMENTATION
Purchase                         1,199   $336,546,084.15        62.80%      6.90%      676  $ 280,688.98      82.23%          22.85%
Refinance - Cashout                166     49,288,233.66          9.2      7.052       633    296,917.07      81.28           47.14
Refinance - Rate/Term              530    150,084,918.70        28.01       7.11       641    283,179.09      81.12           47.95
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%





--------------------------------------------------------------------------------

22. TYPES OF MORTGAGED PROPERTY TYPES



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
TYPES OF MORTGAGED PROPERTY   MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
TYPES                          LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING      LTV     DOCUMENTATION
Condominium                        179   $ 43,980,077.08         8.21%      6.95%      665  $ 245,698.75      81.88%          35.11%
Manufactured Home                    1        405,000.00         0.08      6.675       637    405,000.00      69.83               0
Planned Unit Development           326     88,609,223.03        16.53      7.021       656    271,807.43      81.83           43.17
Single Family Attached              10      1,850,860.00         0.35      7.077       688    185,086.00       82.8           41.31
Single Family Detached           1,267    359,304,891.40        67.04      6.953       661    283,587.13      81.83           30.72
Townhouse                            4        507,040.00         0.09      7.244       674    126,760.00      79.81           34.77
Two-to-Four Family                 108     41,262,145.00          7.7      7.034       683    382,056.90      81.85           17.17
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%





--------------------------------------------------------------------------------

23. DOCUMENTATION SUMMARY



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
DOCUMENTATION SUMMARY          LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING      LTV     DOCUMENTATION
12 Month Bank Statements            90   $ 27,934,914.00         5.21%      7.07%      635  $ 310,387.93      82.42%           0.00%
24 Month Bank Statements            30      9,694,530.99         1.81      7.077       623    323,151.03      82.88               0
Full Documentation                 752    172,087,632.70        32.11       6.92       630    228,839.94      81.72             100
Limited Documentation                9      2,663,052.00          0.5      6.917       648    295,894.67      78.27               0
Stated Income Self-Employed        334    116,812,375.75         21.8      6.935       676    349,737.65      81.73               0
Stated Income Wage Earner          680    206,726,731.07        38.57      7.015       687    304,009.90       81.9               0
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%





--------------------------------------------------------------------------------

24. OCCUPANCY TYPES



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL    AVERAGE       PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
OCCUPANCY TYPES                LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING     LTV      DOCUMENTATION
Investment Property                 58   $ 13,378,438.00         2.50%      7.55%      669  $ 230,662.72      76.49%          31.18%
Primary Home                     1,837    522,540,798.51         97.5      6.956       662    284,453.35      81.97           32.13
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%





--------------------------------------------------------------------------------

25. MORTGAGE LOAN AGE (MONTHS)



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL    AVERAGE       PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
MORTGAGE LOAN AGE (MONTHS)     LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING     LTV      DOCUMENTATION
0                                   92   $ 25,955,282.00         4.84%      6.97%      673  $ 282,122.63      81.18%          27.13%
1                                  885    253,930,848.00        47.38       6.97       665    286,927.51      82.06           32.58
2                                  654    177,232,194.20        33.07      7.048       659    270,997.24      81.64           31.81
3                                  252     75,397,727.31        14.07      6.801       657    299,197.33      81.71           32.82
4                                   12      3,403,185.00         0.64      6.759       641    283,598.75       82.2           35.03
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%


Minimum Seasoning: 0
Maximum Seasoning: 4
WA Seasoning: 2




--------------------------------------------------------------------------------

26. ORIGINAL PREPAYMENT PENALTY TERM



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL    AVERAGE       PERCENT
ORIGINAL PREPAYMENT PENALTY   MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
TERM                           LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING     LTV      DOCUMENTATION
6 Months                             7   $  1,331,263.00         0.25%      7.25%      649  $ 190,180.43      80.89%          42.37%
12 Months                           48     14,588,525.40         2.72      7.348       667    303,927.61       81.9           34.02
24 Months                        1,441    414,662,025.57        77.37      6.877       663    287,759.91      81.86           29.87
36 Months                          159     42,732,469.40         7.97      6.951       660    268,757.67      81.43           47.99
None                               240     62,604,953.14        11.68      7.509       657    260,853.97       81.9           35.42
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%


Minimum Prepayment Penalty Term: 0
Maximum Prepayment Penalty Term: 36
WA Prepayment Penalty Term: 25




--------------------------------------------------------------------------------

27. RANGE OF CREDIT SCORES



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL    AVERAGE       PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
RANGE OF CREDIT SCORES         LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING     LTV      DOCUMENTATION
526 to 550                           5   $  1,310,400.00         0.24%      7.18%      550  $ 262,080.00      75.73%          85.88%
551 to 575                         107     25,809,991.62         4.82       7.72       562    241,214.87      77.24           65.34
576 to 600                         115     28,295,255.37         5.28      7.282       589    246,045.70      77.66            64.6
601 to 625                         291     73,623,983.57        13.74      7.057       614    253,003.38      81.98           67.25
626 to 650                         320     83,253,668.33        15.53      7.018       639    260,167.71      82.44           44.94
651 to 675                         393    116,180,796.66        21.68      6.921       664    295,625.44      82.33           23.44
676 to 700                         310     94,972,788.40        17.72      6.855       687    306,363.83      82.36           11.19
701 to 725                         175     54,897,332.65        10.24      6.803       711    313,699.04      82.74            8.85
726 to 750                          97     32,748,204.74         6.11      6.692       736    337,610.36      82.63            8.47
751 to 775                          56     16,967,510.17         3.17      6.886       762    302,991.25       81.9           15.32
776 to 800                          23      6,201,805.00         1.16      6.731       786    269,643.70      80.35            7.22
801 to 825                           3      1,657,500.00         0.31      6.547       804    552,500.00      85.51           21.18
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%


Maximum FICO: 805
Minimum FICO: 550
WA FICO: 662




--------------------------------------------------------------------------------

28. CREDIT GRADE SUMMARY



                                            AGGREGATE                             WEIGHTED     AVERAGE    WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL     AVERAGE      PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT      BALANCE    ORIGINAL        FULL
CREDIT GRADE SUMMARY           LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING      LTV     DOCUMENTATION
A                                1,771   $503,781,776.72        94.00%      6.93%      667  $ 284,461.76      82.14%          30.11%
A-                                  78     20,877,447.62          3.9      7.562       595    267,659.58       80.1           63.41
B                                   37      8,816,264.17         1.65      7.602       582    238,277.41      71.37           61.42
C                                    7      1,820,448.00         0.34      7.932       616    260,064.00      73.13           62.58
D                                    2        623,300.00         0.12      9.185       596    311,650.00      64.42             100
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%





--------------------------------------------------------------------------------

29. RANGE OF GROSS MARGINS



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL    AVERAGE       PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
RANGE OF GROSS MARGINS         LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING     LTV      DOCUMENTATION
2.501% to 3.000%                     1   $    184,000.00         0.03%      7.24%      658  $ 184,000.00      80.00%         100.00%
3.001% to 3.500%                     1        147,920.00         0.03        7.5       661    147,920.00         80               0
3.501% to 4.000%                    41      8,205,097.00         1.56      7.356       664    200,124.32      79.95           46.78
4.501% to 5.000%                     1        509,915.00          0.1       6.25       676    509,915.00         85               0
5.001% to 5.500%                   257     95,329,210.21         18.1      6.829       654    370,930.78      82.58           39.99
5.501% to 6.000%                 1,232    353,450,810.56        67.12      6.939       665    286,891.89      81.87           28.71
6.001% to 6.500%                   324     68,642,417.06        13.04      7.284       662    211,859.31      81.03           33.46
6.501% to 7.000%                     1        115,855.00         0.02       6.85       634    115,855.00         85             100
TOTAL:                           1,858   $526,585,224.83       100.00%      6.97%      662  $ 283,415.08      81.86%          31.66%


Maximum Gross Margin: 6.750%
Minimum Gross Margin: 3.000%
WA Gross Margin: 5.756%




--------------------------------------------------------------------------------

30. RANGE OF MAXIMUM MORTGAGE RATES



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL    AVERAGE       PERCENT
RANGE OF MAXIMUM              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
MORTGAGE RATES                 LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING     LTV      DOCUMENTATION
12.001 to 12.500                   443   $141,204,576.03        26.82%      6.38%      674  $ 318,746.22      80.81%          38.56%
12.501 to 13.000                   713    209,557,763.93         39.8      6.807       669    293,909.91      81.66           28.86
13.001 to 13.500                   345     91,778,383.69        17.43      7.294       660    266,024.30      82.31           29.18
13.501 to 14.000                   236     58,925,218.15        11.19       7.77       635    249,683.13      83.54           27.69
14.001 to 14.500                    66     13,340,168.64         2.53       8.26       617    202,123.77      84.24           34.73
14.501 to 15.000                    43      9,041,164.39         1.72      8.761       618    210,259.64      85.03           36.01
15.001 to 15.500                    10      2,311,650.00         0.44      9.323       587    231,165.00      78.01           32.11
15.501 to 16.000                     2        426,300.00         0.08      9.912       558    213,150.00      76.81           12.03
TOTAL:                           1,858   $526,585,224.83       100.00%      6.97%      662  $ 283,415.08      81.86%          31.66%


Maximum Max Rate: 16.000%
Minimum Max Rate: 12.150%
WA Max Rate: 12.970%




--------------------------------------------------------------------------------

31. NEXT RATE ADJUSTMENT DATE



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL    AVERAGE       PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
NEXT RATE ADJUSTMENT DATE      LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING     LTV      DOCUMENTATION
2007-07                              5   $  1,411,335.00         0.27%      7.04%      643   $282,267.00      82.33%          15.59%
2007-08                            173     54,732,307.10        10.39      6.756       659    316,371.72      82.56           29.28
2007-09                            530    144,305,315.68         27.4       7.04       660    272,274.18      81.84           27.37
2007-10                            814    232,921,000.00        44.23       6.96       665    286,143.73      82.03           31.34
2007-11                             86     24,353,062.00         4.62      6.984       673    283,175.14      81.47           25.39
2008-07                              6      1,676,850.00         0.32       6.56       634    279,475.00      80.62           39.18
2008-08                             72     19,086,520.75         3.62      6.922       653    265,090.57      80.04           37.42
2008-09                             96     25,388,286.84         4.82      7.154       654    264,461.32      80.71           50.79
2008-10                             43     12,888,588.00         2.45      6.986       673    299,734.60      82.54           41.73
2008-11                              2        407,120.00         0.08      6.484       696    203,560.00         80           64.06
2010-08                              5      1,201,899.46         0.23      6.823       631    240,379.89      71.83             100
2010-09                              9      1,980,370.00         0.38      6.667       676    220,041.11      81.61           49.06
2010-10                             14      5,387,470.00         1.02      7.179       664    384,819.29      83.14           49.82
2010-11                              3        845,100.00         0.16      6.874       673    281,700.00      78.33           70.71
TOTAL:                           1,858   $526,585,224.83       100.00%      6.97%      662   $283,415.08      81.86%          31.66%





--------------------------------------------------------------------------------

32. ZIP CODE



                                            AGGREGATE                             WEIGHTED    AVERAGE     WEIGHTED
                             NUMBER OF      PRINCIPAL      PERCENT OF   WEIGHTED  AVERAGE    PRINCIPAL    AVERAGE       PERCENT
                              MORTGAGE       BALANCE        MORTGAGE    AVERAGE    CREDIT     BALANCE     ORIGINAL        FULL
ZIP CODE                       LOANS       OUTSTANDING        POOL       COUPON    SCORE    OUTSTANDING     LTV      DOCUMENTATION
91331                               11   $  4,395,410.00         0.82%      6.74%      689  $ 399,582.73      84.95%          10.64%
92704                                9      3,433,040.00         0.64      6.611       670    381,448.89      76.95               0
92562                                8      3,198,933.00          0.6      6.782       662    399,866.63      83.03           21.19
92553                               11      3,033,150.00         0.57      6.807       667    275,740.91      82.45           10.68
92345                               10      2,937,085.00         0.55      6.892       674    293,708.50      82.48               0
90650                                8      2,851,700.00         0.53      6.729       674    356,462.50      83.69           14.08
91342                                7      2,619,750.00         0.49      6.634       675    374,250.00       85.2            7.29
92840                                5      2,570,650.00         0.48      6.409       721    514,130.00       81.2               0
90806                                5      2,539,350.00         0.47      6.987       693    507,870.00      78.02               0
90805                                7      2,533,498.33         0.47      6.619       686    361,928.33      80.14               0
Other                            1,814    505,806,670.18        94.38      6.985       661    278,834.99      81.83           33.61
TOTAL:                           1,895   $535,919,236.51       100.00%      6.97%      662  $ 282,806.98      81.83%          32.11%





--------------------------------------------------------------------------------

33. INITIAL INTEREST RATE CAP

Minimum: 2.000%
Maximum: 3.000%
WA: 2.982%




--------------------------------------------------------------------------------

34. PERIODIC RATE CAP

Minimum: 1.000%
Maximum: 1.000%
WA: 1.000%




--------------------------------------------------------------------------------

35. MIN MORTGAGE RATE

Minimum: 6.150%
Maximum: 10.000%
WA: 6.970%




--------------------------------------------------------------------------------

36. MONTHS TO ROLL

Minimum: 20
Maximum: 60
WA: 24




--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Credit Suisse First Boston
11 Madison Avenue
New York, New York 10010
www.csfb.com
                       10/25/2005 17:55

--------------------------------------------------------------------------------

Disclaimer:This material is provided to you solely for informational purposes,
is intended for your use only and does not constitute an offer or commitment, a
solicitation of an offer or commitment, or any advice or recommendation, to
enter into or conclude any transaction (whether on the indicative terms shown or
otherwise). This material has been prepared by CSFB based on assumptions and
parameters determined by it in good faith. It is important that you (recipient)
understand that those assumptions and parameters are not the only ones that
might reasonably have been selected or that could apply in connection with the
preparation of these materials or an assessment of the transaction described
above. A variety of other or additional assumptions or parameters, or other
market factors and other considerations, could result in different
contemporaneous good faith analyses or assessment of the transaction described
above. Past performance should not be taken as an indication or guarantee of
future performance, and no representation or warranty, express or implied is
made regarding future performance. Opinions and estimates may be changed without
notice. The information set forth above has been obtained from or based upon
sources believed by CSFB to be reliable, but CSFB does not represent or warrant
its accuracy or completeness. This material does not purport to contain all of
the information that an interested party may desire. In all cases, interested
parties should conduct their own investigation and analysis of the
transaction(s) described in these materials and of the data set forth in them.
Each person receiving these materials should make an independent assessment of
the merits of pursuing a transaction described in these materials and should
consult their own professional advisors. CSFB may, from time to time,
participate or invest in other financing transactions with the issuers of the
securities referred to herein, perform services for or solicit business from
such issuers, and/or have a position or effect transactions in the securities or
derivatives thereof. Structured securities are complex instruments, typically
involve a high degree of risk and are intended for sale only to sophisticated
investors who are capable of understanding and assuming the risks involved. The
market value of any structured security may be affected by changes in economic,
financial and political factors (including, but not limited to, spot and forward
interest and exchange rates), time to maturity, market conditions and volatility
and the credit quality of any issuer or reference issuer. Any investor
interested in purchasing a structured product should conduct its own
investigation and analysis of the product and consult with its own professional
advisers as to the risks involved in making such a purchase.

Fieldstone Mortgage Investment CORP 8-K