Soundview Home Loan Trust 2006-OPT4

Mortgage Pass-Through Certificates

December 26, 2006 Distribution

External Parties

Table of Contents

Page

Seller

Option One Mortgage Corporation

1. Certificate Payment Report

2. Collection Account Report

Underwriter(s)

3. Credit Enhancement Report

Wachovia Securites

4. Collateral Report

RBS Greenwich Capital

5. Delinquency Report

6. REO Report

Swap Counterparty

7. Foreclosure Report

Wachovia Bank

8. Prepayment Report

9. Prepayment Detail Report

10. Realized Loss Report

11. Realized Loss Detail Report

12. Triggers and Adj. Cert. Report

13. Additional Certificate Report

14. Other Related Information

Total Number of Pages

Dates

Contacts

Cut-Off Date:

May 01, 2006

Michael Boyle

Close Date:

May 26, 2006

Administrator

First Distribution Date:

June 26, 2006

(714) 247-6273

michael-l.boyle@db.com

Address:

Distribution Date:

December 26, 2006

1761 E.Saint Andrew Pl, Santa Ana, CA 92705

Record Date:

November 30, 2006

Factor Information:

(800) 735-7777

December 22, 2006

Main Phone Number:

(714) 247-6000

Determination Date

December 14, 2006

https://www.tss.db.com/invr

Page 1 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Certificate Payment Report
Current Period Distribution -
				Prior						Current
	Class		Original	Principal			Total	Realized	Deferred	Principal
	Class		Original	Principal			Total	Realized	Deferred	Principal
Class	Type	Cur	Face Value	Balance	Interest	Principal	Distribution	Loss	Interest	Balance

			(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
			(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
I-A-1	FLT,STEP	$	321,226,000.00	260,803,691.32	1,149,202.49	15,189,901.28	16,339,103.77	0.00	0.00	245,613,790.04
I-A-1	FLT,STEP	$	321,226,000.00	260,803,691.32	1,149,202.49	15,189,901.28	16,339,103.77	0.00	0.00	245,613,790.04
II-A-1	FLT,STEP	$	260,789,000.00	183,221,590.83	789,634.16	18,500,389.46	19,290,023.62	0.00	0.00	164,721,201.37
II-A-2	FLT,STEP	$	75,758,000.00	75,758,000.00	330,157.57	0.00	330,157.57	0.00	0.00	75,758,000.00
II-A-3	FLT,STEP	$	108,517,000.00	108,517,000.00	478,168.10	0.00	478,168.10	0.00	0.00	108,517,000.00
II-A-4	FLT,STEP	$	37,710,000.00	37,710,000.00	168,595.13	0.00	168,595.13	0.00	0.00	37,710,000.00
M-1	MEZ,STEP,FL	$	72,500,000.00	72,500,000.00	327,055.56	0.00	327,055.56	0.00	0.00	72,500,000.00
M-2	MEZ,STEP,FL	$	21,500,000.00	21,500,000.00	97,508.47	0.00	97,508.47	0.00	0.00	21,500,000.00
M-3	MEZ,STEP,FL	$	18,500,000.00	18,500,000.00	84,647.78	0.00	84,647.78	0.00	0.00	18,500,000.00
M-4	MEZ,STEP,FL	$	17,500,000.00	17,500,000.00	80,495.14	0.00	80,495.14	0.00	0.00	17,500,000.00
M-5	MEZ,STEP,FL	$	17,500,000.00	17,500,000.00	81,481.94	0.00	81,481.94	0.00	0.00	17,500,000.00
M-6	MEZ,STEP,FL	$	12,000,000.00	12,000,000.00	60,126.67	0.00	60,126.67	0.00	0.00	12,000,000.00
M-7	MEZ,STEP,FL	$	10,000,000.00	10,000,000.00	52,522.22	0.00	52,522.22	0.00	0.00	10,000,000.00
M-8	MEZ,STEP,FL	$	7,000,000.00	7,000,000.00	41,276.67	0.00	41,276.67	0.00	0.00	7,000,000.00
M-9	MEZ,STEP,FL	$	9,500,000.00	9,500,000.00	59,844.72	0.00	59,844.72	0.00	0.00	9,500,000.00
C	$	9,999,931.47	10,000,000.31	1,653,428.84	0.00	1,653,428.84	0.00	0.00	10,000,000.31
P	$	100.00	100.00	340,171.70	0.00	340,171.70	0.00	0.00	100.00
R	$	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
R-X	$	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00

Total		1,000,000,031.47	862,010,382.46	5,794,317.16	33,690,290.74	39,484,607.90	0.00	0.00	828,320,091.72
Total




Interest Accrual Detail Current Period Factor Information per $1,000 of Original Face-
					Orig. Principal	Prior				Current
					Orig. Principal	Prior				Current
	Period	Period			(with Notional)	Principal			Total	Principal
Class	Starting	Ending	Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
			Method
					(1)	(1)	(2)	(3)	(4)=(2)+(3)	(5)

I-A-1	11/27/06	12/25/06	A-Act/360	83611YAA0	321,226,000.00	811.900940	3.577551	47.287272	50.864823	764.613668
I-A-1	11/27/06	12/25/06	A-Act/360	83611YAA0	321,226,000.00	811.900940	3.577551	47.287272	50.864823	764.613668
II-A-1	11/27/06	12/25/06	A-Act/360	83611YAB8	260,789,000.00	702.566407	3.027866	70.940068	73.967934	631.626339
II-A-2	11/27/06	12/25/06	A-Act/360	83611YAC6	75,758,000.00	1,000.000000	4.358056	0.000000	4.358056	1,000.000000
II-A-3	11/27/06	12/25/06	A-Act/360	83611YAD4	108,517,000.00	1,000.000000	4.406389	0.000000	4.406389	1,000.000000
II-A-4	11/27/06	12/25/06	A-Act/360	83611YAE2	37,710,000.00	1,000.000000	4.470833	0.000000	4.470833	1,000.000000
M-1	11/27/06	12/25/06	A-Act/360	83611YAF9	72,500,000.00	1,000.000000	4.511111	0.000000	4.511111	1,000.000000
M-2	11/27/06	12/25/06	A-Act/360	83611YAG7	21,500,000.00	1,000.000000	4.535278	0.000000	4.535278	1,000.000000
M-3	11/27/06	12/25/06	A-Act/360	83611YAH5	18,500,000.00	1,000.000000	4.575556	0.000000	4.575556	1,000.000000
M-4	11/27/06	12/25/06	A-Act/360	83611YAJ1	17,500,000.00	1,000.000000	4.599722	0.000000	4.599722	1,000.000000
M-5	11/27/06	12/25/06	A-Act/360	83611YAK8	17,500,000.00	1,000.000000	4.656111	0.000000	4.656111	1,000.000000
M-6	11/27/06	12/25/06	A-Act/360	83611YAL6	12,000,000.00	1,000.000000	5.010556	0.000000	5.010556	1,000.000000
M-7	11/27/06	12/25/06	A-Act/360	83611YAM4	10,000,000.00	1,000.000000	5.252222	0.000000	5.252222	1,000.000000
M-8	11/27/06	12/25/06	A-Act/360	83611YAN2	7,000,000.00	1,000.000000	5.896667	0.000000	5.896667	1,000.000000
M-9	11/27/06	12/25/06	A-Act/360	83611YAP7	9,500,000.00	1,000.000000	6.299444	0.000000	6.299444	1,000.000000
C	11/01/06	11/30/06	F-30/360	GC06O4101	1,009,999,962.94	9.900991	1.637058	0.000000	1.637058	9.900991
P	11/01/06	11/30/06	F-30/360	GC06O4102	100.00	1,000.000000	3,401,717.000000	0.000000	3,401,717.000000	1,000.000000
R	11/01/06	11/30/06	F-30/360	GC06O4103	0.00	0.000000	0.000000	0.000000	0.000000	0.000000
R-X	11/01/06	11/30/06	F-30/360	GC06O4104	0.00	0.000000	0.000000	0.000000	0.000000	0.000000



Page 2 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


Distribution to Date -
									Current


	Original		Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal

Class	Face Value	Interest	Principal	Principal	Principal	Distribution	Loss	Interest	Balance
(1)	(2)	(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)
I-A-1	321,226,000.00	9,582,941.64	74,186,092.58	1,426,117.38	75,612,209.96	85,195,151.60	0.00	0.00	245,613,790.04
II-A-1	260,789,000.00	7,172,107.56	94,196,184.29	1,871,614.34	96,067,798.63	103,239,906.19	0.00	0.00	164,721,201.37
II-A-2	75,758,000.00	2,426,229.86	0.00	0.00	0.00	2,426,229.86	0.00	0.00	75,758,000.00
II-A-3	108,517,000.00	3,514,075.79	0.00	0.00	0.00	3,514,075.79	0.00	0.00	108,517,000.00
II-A-4	37,710,000.00	1,239,085.64	0.00	0.00	0.00	1,239,085.64	0.00	0.00	37,710,000.00
M-1	72,500,000.00	2,403,773.72	0.00	0.00	0.00	2,403,773.72	0.00	0.00	72,500,000.00
M-2	21,500,000.00	716,677.41	0.00	0.00	0.00	716,677.41	0.00	0.00	21,500,000.00
M-3	18,500,000.00	622,174.51	0.00	0.00	0.00	622,174.51	0.00	0.00	18,500,000.00
M-4	17,500,000.00	591,664.30	0.00	0.00	0.00	591,664.30	0.00	0.00	17,500,000.00
M-5	17,500,000.00	598,946.23	0.00	0.00	0.00	598,946.23	0.00	0.00	17,500,000.00
M-6	12,000,000.00	442,092.66	0.00	0.00	0.00	442,092.66	0.00	0.00	12,000,000.00
M-7	10,000,000.00	386,243.89	0.00	0.00	0.00	386,243.89	0.00	0.00	10,000,000.00
M-8	7,000,000.00	303,659.61	0.00	0.00	0.00	303,659.61	0.00	0.00	7,000,000.00
M-9	9,500,000.00	440,345.58	0.00	0.00	0.00	440,345.58	0.00	0.00	9,500,000.00
C	9,999,931.47	12,955,019.44	0.00	0.00	0.00	12,955,019.44	0.00	68.84	10,000,000.31
P	100.00	1,832,997.74	0.00	0.00	0.00	1,832,997.74	0.00	0.00	100.00
R	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
R-X	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00


Total	1,000,000,031.47	45,228,035.58	168,382,276.87	3,297,731.72	171,680,008.59	216,908,044.17	0.00	68.84	828,320,091.72


Interest Detail -
	Pass	Prior Principal		Non-	Prior	Unscheduled		Paid or	Current
	Pass	Prior Principal		Non-	Prior	Unscheduled		Paid or

	Through	(with Notional)	Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid

Class	Rate	Balance	Interest	Interest SF	Interest	Adjustment	Interest	Interest	Interest
			(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)
I-A-1	5.47000%	260,803,691.32	1,149,202.49	0.00	0.00	0.00	1,149,202.49	1,149,202.49	0.00
II-A-1	5.35000%	183,221,590.83	789,634.16	0.00	0.00	0.00	789,634.16	789,634.16	0.00
II-A-2	5.41000%	75,758,000.00	330,157.57	0.00	0.00	0.00	330,157.57	330,157.57	0.00
II-A-3	5.47000%	108,517,000.00	478,168.10	0.00	0.00	0.00	478,168.10	478,168.10	0.00
II-A-4	5.55000%	37,710,000.00	168,595.13	0.00	0.00	0.00	168,595.13	168,595.13	0.00
M-1	5.60000%	72,500,000.00	327,055.56	0.00	0.00	0.00	327,055.56	327,055.56	0.00
M-2	5.63000%	21,500,000.00	97,508.47	0.00	0.00	0.00	97,508.47	97,508.47	0.00
M-3	5.68000%	18,500,000.00	84,647.78	0.00	0.00	0.00	84,647.78	84,647.78	0.00
M-4	5.71000%	17,500,000.00	80,495.14	0.00	0.00	0.00	80,495.14	80,495.14	0.00
M-5	5.78000%	17,500,000.00	81,481.94	0.00	0.00	0.00	81,481.94	81,481.94	0.00
M-6	6.22000%	12,000,000.00	60,126.67	0.00	0.00	0.00	60,126.67	60,126.67	0.00
M-7	6.52000%	10,000,000.00	52,522.22	0.00	0.00	0.00	52,522.22	52,522.22	0.00
M-8	7.32000%	7,000,000.00	41,276.67	0.00	0.00	0.00	41,276.67	41,276.67	0.00
M-9	7.82000%	9,500,000.00	59,844.72	0.00	0.00	0.00	59,844.72	59,844.72	0.00
C	198.41145%	10,000,000.31	0.00	0.00	0.00	0.00	0.00	1,653,428.84	0.00
P	4,082,060.40000%	100.00	0.00	0.00	0.00	0.00	0.00	340,171.70	0.00
R	0.00000%	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
R-X	0.00000%	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00

Total		862,010,382.46	3,800,716.62	0.00	0.00	0.00	3,800,716.62	5,794,317.16	0.00



Page 3 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Collection Account Report
SUMMARY

	Group 2	Group 1	Total
Principal Collections	18,500,389.46	15,189,901.28	33,690,290.74
Principal Withrawals	0.00	0.00	0.00
Principal Other Accounts	0.00	0.00	0.00
TOTAL NET PRINCIPAL	18,500,389.46	15,189,901.28	33,690,290.74
Interest Collections	3,434,240.61	2,282,606.72	5,716,847.33
Interest Withdrawals	-0.00	-0.00	-0.00
Interest Other Accounts	2,349.39	116,062.97	118,412.36
Interest Fees	-24,696.94	-16,245.58	-40,942.53
TOTAL NET INTEREST	3,411,893.05	2,382,424.12	5,794,317.16
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION	21,912,282.51	17,572,325.40	39,484,607.90




PRINCIPAL - COLLECTIONS

	Group 2	Group 1	Total
Scheduled Principal Received	247,713.26	191,575.76	439,289.02
Curtailments	26,843.86	10,801.80	37,645.66
Prepayments In Full	12,865,630.24	10,535,369.16	23,400,999.40
Repurchased/Substitutions	5,360,202.10	4,452,154.56	9,812,356.66
Liquidations	0.00	0.00	0.00
Other Additional Principal	0.00	0.00	0.00
Delinquent Principal	-219,199.89	-169,043.52	-388,243.41
Realized Losses	-0.00	-0.00	-0.00
Advanced Principal	219,199.89	169,043.52	388,243.41
TOTAL PRINCIPAL COLLECTED	18,500,389.46	15,189,901.28	33,690,290.74




PRINCIPAL - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK




PRINCIPAL - OTHER ACCOUNTS

SPACE INTENTIONALLY LEFT BLANK






Page 4 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


INTEREST - COLLECTIONS

	Group 2	Group 1	Total
Scheduled Interest	3,510,559.99	2,321,438.12	5,831,998.11
Repurchased/Substitution Interest	37,141.24	34,488.10	71,629.34
Liquidation Interest	0.00	0.00	0.00
Other Additional Interest	0.00	0.00	0.00
Prepayment Interest Shortfalls	-14,977.28	-9,339.50	-24,316.78
Delinquent Interest	-3,078,595.60	-2,042,795.80	-5,121,391.40
Interest Realized Loss	0.00	0.00	0.00
Compensating Interest	14,977.27	9,339.50	24,316.77
Civil Relief Act Shortfalls	-0.00	-0.00	-0.00
Interest Advanced	2,965,134.96	1,969,476.32	4,934,611.28
TOTAL INTEREST COLLECTED	3,434,240.61	2,282,606.72	5,716,847.33




INTEREST - WITHDRAWALS

	Group 2	Group 1	Total
Extraordinary Trust Fund Expenses	0.00	0.00	0.00

TOTAL INTEREST WITHDRAWALS	0.00	0.00	0.00




INTEREST - OTHER ACCOUNTS
INTEREST - OTHER ACCOUNTS
	Group 2	Group 1	Total
Prepayment Charges	136,869.43	203,302.27	340,171.70

Interest Swap Payment	(2,349,434.95)	(1,523,661.79)	(3,873,096.74)
Interest Swap Receipt	2,214,914.91	1,436,422.49	3,651,337.40
Swap Termination Payment	0.00	0.00	0.00
Swap Termination Payment due to Swap Provider Trigger			0.00

TOTAL INTEREST OTHER ACCOUNTS	2,349.39	116,062.97	118,412.36

Net SWAP Payment to/from SWAP Provider			-221,759.34




INTEREST FEES
INTEREST FEES
	Group 2	Group 1	Total
Current Servicing Fees	17,264.05	11,458.43	28,722.47
Current Custodian Fees	2,178.74	1,412.97	3,591.71
Current Credit Risk Manager Fees	5,254.15	3,374.19	8,628.33
TOTAL INTEREST FEES	24,696.94	16,245.58	40,942.53



Page 5 of 30

Soundview Home Loan Trust 2006-OPT4

Mortgage Pass-Through Certificates

December 26, 2006 Distribution

Credit Enhancement Report

ACCOUNTS

Net WAC Rate Carryover Reserve Account

Beginning Account Balance

0.00

Account Deposit

0.00

Account Withdrawals

0.00

Ending Account Balance

0.00

SWAP ACCOUNT

Beginning Account Balance

0.00

Account Deposit

221,759.34

Account Withdrawals

221,759.34

Ending Account Balance

0.00

INSURANCE

SPACE INTENTIONALLY LEFT BLANK

STRUCTURAL FEATURES

Group 2

Group 1

Total

Overcollateralization Target Amount

10,000,000.31

Overcollateralization Amount (Beginning)

10,000,000.31

Overcollateralization Deficiency Amount

0.00

Overcollateralization Release Amount

0.00

Overcollateralization Amount (Ending)

10,000,000.31

Overcollateralization Deficiency (Ending)

0.00

Excess Overcollateralization (Ending)

0.00

Net Monthly Excess Cashflow

1,653,428.84

Page 6 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Collateral Report


COLLATERAL




		Group 2	Group 1	Total



Loan Count:


Original	3,088	2,371	5,459
Prior	2,746	2,043	4,789
Prefunding	0	0	0
Scheduled Paid Offs	-0	-0	-0
Full Voluntary Prepayments	-60	-54	-114
Repurchases	-37	-31	-68
Liquidations	-0	-0	-0
Current	2,649	1,958	4,607
Principal Balance:


Original	600,465,510.35	399,534,521.12	1,000,000,031.47
Prior	522,898,717.81	339,111,664.65	862,010,382.46
Prefunding	0.00	0.00	0.00
Scheduled Principal	-247,713.26	-191,575.76	-439,289.02
Partial Prepayments	-26,843.86	-10,801.80	-37,645.66
Full Voluntary Prepayments	-12,865,630.24	-10,535,369.16	-23,400,999.40
Repurchases	-5,360,202.10	-4,452,154.56	-9,812,356.66
Liquidations	-0.00	-0.00	-0.00
Current	504,398,328.35	323,921,763.37	828,320,091.72





PREFUNDING

SPACE INTENTIONALLY LEFT BLANK

Page 7 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


CHARACTERISTICS
CHARACTERISTICS

	Group 2	Group 1	Total
Weighted Average Coupon Original	8.19686%	8.39946%	8.27781%
Weighted Average Coupon Prior	8.14436%	8.35700%	8.22879%
Weighted Average Coupon Current	8.14162%	8.33682%	8.21841%
Weighted Average Months to Maturity Original	354	355	355
Weighted Average Months to Maturity Prior	349	350	349
Weighted Average Months to Maturity Current	348	349	348
Weighted Avg Remaining Amortization Term Original	379	381	380
Weighted Avg Remaining Amortization Term Prior	375	377	376
Weighted Avg Remaining Amortization Term Current	373	376	374
Weighted Average Seasoning Original	4.24	3.51	3.95
Weighted Average Seasoning Prior	9.16	8.42	8.87
Weighted Average Seasoning Current	10.16	9.41	9.87

Page 8 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


ARM CHARACTERISTICS
ARM CHARACTERISTICS

	Group 2	Group 1	Total
Weighted Average Margin Original	6.04298%	6.23425%	6.12182%
Weighted Average Margin Prior	6.01169%	6.22080%	6.09737%
Weighted Average Margin Current	6.00817%	6.21501%	6.09224%
Weighted Average Max Rate Original	13.93943%	14.39783%	14.12837%
Weighted Average Max Rate Prior	13.87994%	14.36551%	14.07889%
Weighted Average Max Rate Current	13.87425%	14.35291%	14.06879%
Weighted Average Min Rate Original	7.94958%	8.43080%	8.14792%
Weighted Average Min Rate Prior	7.89318%	8.39613%	8.09925%
Weighted Average Min Rate Current	7.88760%	8.38359%	8.08918%
Weighted Average Cap Up Original	1.00072%	1.00024%	1.00052%
Weighted Average Cap Up Prior	1.00080%	1.00028%	1.00059%
Weighted Average Cap Up Current	1.00045%	1.00029%	1.00038%
Weighted Average Cap Down Original	1.00072%	1.00024%	1.00052%
Weighted Average Cap Down Prior	1.00080%	1.00028%	1.00059%
Weighted Average Cap Down Current	1.00045%	1.00029%	1.00038%




SERVICING FEES & ADVANCES
SERVICING FEES & ADVANCES

	Group 2	Group 1	Total




Current Servicing Fees	17,264.05	11,458.43	28,722.47
Delinquent Servicing Fees	113,460.63	73,319.48	186,780.11
TOTAL SERVICING FEES	130,724.68	84,777.92	215,502.60


Total Servicing Fees	130,724.68	84,777.92	215,502.60
Compensating Interest	-14,977.27	-9,339.50	-24,316.77
Delinquent Servicing Fees	-113,460.63	-73,319.48	-186,780.11
COLLECTED SERVICING FEES	2,286.78	2,118.93	4,405.71


Total Advaced Interest	2,965,134.96	1,969,476.32	4,934,611.28
Total Advaced Principal	219,199.89	169,043.52	388,243.41
Aggregate Advances with respect to this Distribution	3,184,334.86	2,138,519.83	5,322,854.69





ADDITIONAL COLLATERAL INFORMATION
ADDITIONAL COLLATERAL INFORMATION
	Group 2	Group 1	Total
Prepayment Interest Shortfall (PPIS)	14,977.28	9,339.50	24,316.78
Compensating Interest	(14,977.27)	(9,339.50)	(24,316.77)
Net Prepayment Interest Shortfall (PPIS)	0.00	0.00	0.00

Weighted Average Net Mortgage Rate	7.829952%	8.430583%	8.066238%







Page 9 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Delinquency Report

TOTAL
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		25,432,201.62	11,014,056.29	6,133,064.59	42,579,322.50
	% Balance		3.07%	1.33%	0.74%	5.14%
	# Loans		160	63	46	269
	% # Loans		3.47%	1.37%	1.00%	5.84%
FORECLOSURE	Balance	0.00	207,201.24	2,387,660.31	9,651,782.67	12,246,644.22
	% Balance	0.00%	0.03%	0.29%	1.17%	1.48%
	# Loans	0	1	16	46	63
	% # Loans	0.00%	0.02%	0.35%	1.00%	1.37%
BANKRUPTCY	Balance	862,306.61	225,150.00	0.00	98,796.80	1,186,253.41
	% Balance	0.10%	0.03%	0.00%	0.01%	0.14%
	# Loans	11	1	0	1	13
	% # Loans	0.24%	0.02%	0.00%	0.02%	0.28%
REO	Balance	0.00	0.00	0.00	772,051.02	772,051.02
	% Balance	0.00%	0.00%	0.00%	0.09%	0.09%
	# Loans	0	0	0	2	2
	% # Loans	0.00%	0.00%	0.00%	0.04%	0.04%
TOTAL	Balance	862,306.61	25,864,552.86	13,401,716.60	16,655,695.08	56,784,271.15
	% Balance	0.10%	3.12%	1.62%	2.01%	6.86%
	# Loans	11	162	79	95	347
	% # Loans	0.24%	3.52%	1.71%	2.06%	7.53%

Page 10 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


GROUP 1
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		10,876,645.68	3,685,571.31	2,193,514.62	16,755,731.61
	% Balance		3.36%	1.14%	0.68%	5.17%
	# Loans		71	28	17	116
	% # Loans		3.63%	1.43%	0.87%	5.92%
FORECLOSURE	Balance	0.00	207,201.24	1,248,325.08	5,171,713.81	6,627,240.13
	% Balance	0.00%	0.06%	0.39%	1.60%	2.05%
	# Loans	0	1	11	28	40
	% # Loans	0.00%	0.05%	0.56%	1.43%	2.04%
BANKRUPTCY	Balance	403,825.00	0.00	0.00	0.00	403,825.00
	% Balance	0.12%	0.00%	0.00%	0.00%	0.12%
	# Loans	3	0	0	0	3
	% # Loans	0.15%	0.00%	0.00%	0.00%	0.15%
REO	Balance	0.00	0.00	0.00	0.00	0.00
	% Balance	0.00%	0.00%	0.00%	0.00%	0.00%
	# Loans	0	0	0	0	0
	% # Loans	0.00%	0.00%	0.00%	0.00%	0.00%
TOTAL	Balance	403,825.00	11,083,846.92	4,933,896.39	7,365,228.43	23,786,796.74
	% Balance	0.12%	3.42%	1.52%	2.27%	7.34%
	# Loans	3	72	39	45	159
	% # Loans	0.15%	3.68%	1.99%	2.30%	8.12%

Page 11 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


GROUP 2
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		14,555,555.94	7,328,484.98	3,939,549.97	25,823,590.89
	% Balance		2.89%	1.45%	0.78%	5.12%
	# Loans		89	35	29	153
	% # Loans		3.36%	1.32%	1.09%	5.78%
FORECLOSURE	Balance	0.00	0.00	1,139,335.23	4,480,068.86	5,619,404.09
	% Balance	0.00%	0.00%	0.23%	0.89%	1.11%
	# Loans	0	0	5	18	23
	% # Loans	0.00%	0.00%	0.19%	0.68%	0.87%
BANKRUPTCY	Balance	458,481.61	225,150.00	0.00	98,796.80	782,428.41
	% Balance	0.09%	0.04%	0.00%	0.02%	0.16%
	# Loans	8	1	0	1	10
	% # Loans	0.30%	0.04%	0.00%	0.04%	0.38%
REO	Balance	0.00	0.00	0.00	772,051.02	772,051.02
	% Balance	0.00%	0.00%	0.00%	0.15%	0.15%
	# Loans	0	0	0	2	2
	% # Loans	0.00%	0.00%	0.00%	0.08%	0.08%
TOTAL	Balance	458,481.61	14,780,705.94	8,467,820.21	9,290,466.65	32,997,474.41
	% Balance	0.09%	2.93%	1.68%	1.84%	6.54%
	# Loans	8	90	40	50	188
	% # Loans	0.30%	3.40%	1.51%	1.89%	7.10%

Page 12 of 30

Soundview Home Loan Trust 2006-OPT4

Mortgage Pass-Through Certificates

December 26, 2006 Distribution

REO Report

Loan Number

Original

Stated

Current

State &

First

Principal

Paid to

Note

LTV at

Original

Payment

Loan Group

Balance

Date

Rate

Origination

Term

Date

Became REO Property this Period:

521036134 2

56,000.00

55,813.59

01-Jul-2006

10.450%

MO - 79.97%

360

01-May-2006

651016826 2

720,000.00

716,237.43

01-Jun-2006

8.250%

AL - 84.65%

360

01-May-2006

TOTAL

776,000.00

772,051.02

Page 13 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Foreclosure Report
Loan Number	Original	Stated		Current	State &		First
Loan Number	Original	Stated		Current	State &		First
&	Principal	Principal	Paid to	Note	LTV at	Original	Payment
Loan Group	Balance	Balance	Date	Rate	Origination	Term	Date
					Origination

Became Foreclosure Property this Period:
31041914 2	560,000.00	557,328.64	01-Aug-2006	8.700%	CA - 79.95%	360	01-May-2006
61060579 1	52,000.00	51,728.53	01-Aug-2006	11.740%	OH - 62.85%	360	01-Sep-2005
61065097 1	68,000.00	67,861.95	01-Jun-2006	8.500%	PA - 79.98%	360	01-May-2006
131037213 1	68,850.00	68,561.03	01-Aug-2006	11.700%	IN - 89.83%	360	01-Feb-2006
231080243 1	136,000.00	135,351.24	01-Jul-2006	8.700%	NJ - 79.95%	360	01-May-2006
351033902 2	80,900.00	80,640.38	01-Aug-2006	10.600%	TX - 99.96%	360	01-May-2006
361028647 1	71,250.00	71,103.29	01-Aug-2006	9.950%	MI - 94.92%	360	01-Jan-2006
361030312 2	99,920.00	99,489.17	01-Aug-2006	9.200%	MI - 79.96%	360	01-May-2006
371032478 1	223,250.00	222,246.42	01-Aug-2006	8.990%	FL - 94.95%	360	01-May-2006
381027482 1	212,000.00	210,823.39	01-Jul-2006	7.950%	RI - 79.95%	360	01-May-2006
391017576 1	294,000.00	293,105.30	01-Jul-2006	10.850%	FL - 69.97%	360	01-May-2006
511045993 2	344,500.00	342,284.25	01-Aug-2006	6.500%	CA - 65.00%	360	01-Jun-2006
521035730 1	108,000.00	107,567.53	01-Aug-2006	9.550%	IL - 79.96%	360	01-May-2006
521035825 2	59,840.00	59,592.79	01-Aug-2006	9.400%	IN - 89.95%	360	01-May-2006
551011937 1	95,920.00	95,439.72	01-Jul-2006	8.600%	OK - 79.95%	360	01-May-2006
621012413 2	200,000.00	198,099.27	01-May-2006	8.190%	FL - 79.62%	360	01-Nov-2005
641016219 1	120,000.00	119,665.10	01-Aug-2006	11.250%	TX - 79.97%	360	01-May-2006
661014662 1	320,000.00	319,301.43	01-Jul-2006	8.250%	CA - 79.98%	360	01-May-2006
681011553 1	176,000.00	175,080.26	01-Aug-2006	8.250%	VT - 79.95%	360	01-May-2006
771007634 1	85,500.00	85,029.39	01-Aug-2006	10.450%	AR - 89.78%	360	01-Dec-2005
841010277 1	55,250.00	55,034.12	01-Aug-2006	11.250%	MI - 84.88%	360	01-Feb-2006
841011814 1	96,000.00	95,820.90	01-Aug-2006	8.790%	MI - 79.98%	360	01-May-2006
861001547 1	197,500.00	196,488.51	01-Aug-2006	8.350%	FL - 71.00%	360	01-May-2006
871004336 1	480,000.00	478,652.87	01-Jul-2006	7.850%	NJ - 79.98%	360	01-May-2006


TOTAL	4,204,680.00	4,186,295.48

Became Foreclosure Property in a Prior Period:
51060269 1	150,100.00	148,387.56	01-Jul-2006	7.600%	GA - 94.43%	360	01-Oct-2005
51063498 1	117,900.00	117,402.49	01-Jul-2006	9.300%	GA - 89.95%	360	01-May-2006
51063669 1	96,000.00	95,493.28	01-Jul-2006	8.200%	GA - 79.95%	360	01-May-2006
51064894 1	75,600.00	75,533.76	01-Jul-2006	10.850%	GA - 85.91%	360	01-Jun-2006
61065304 1	104,500.00	104,220.96	01-Jul-2006	11.490%	OH - 94.97%	360	01-May-2006
61066949 2	52,650.00	52,504.41	01-Jul-2006	10.650%	OH - 65.00%	360	01-Jun-2006
71068174 2	64,000.00	63,396.00	01-Jul-2006	8.900%	FL - 27.68%	360	01-Sep-2005
71069121 2	109,900.00	109,301.44	01-Jul-2006	10.500%	FL - 69.83%	360	01-Dec-2005
71071570 1	365,750.00	364,613.24	01-Jun-2006	10.750%	FL - 94.96%	360	01-May-2006
101049425 2	100,000.00	98,886.84	01-Jul-2006	8.900%	TX - 79.59%	360	01-Sep-2005
101055208 1	75,600.00	75,306.60	01-Jul-2006	9.700%	TX - 79.96%	360	01-May-2006
101055320 2	628,015.00	626,425.18	01-Jun-2006	11.700%	TX - 63.10%	360	01-May-2006
131038530 2	71,250.00	71,077.32	01-Jul-2006	11.900%	OH - 94.97%	360	01-May-2006
211041615 1	251,750.00	250,525.71	01-Jun-2006	9.050%	FL - 94.95%	360	01-May-2006
261055329 2	199,920.00	199,361.93	01-Jul-2006	8.850%	FL - 79.91%	360	01-Jan-2006
331045717 1	208,000.00	207,201.24	01-Sep-2006	9.750%	NJ - 79.96%	360	01-May-2006
331045717 1	208,000.00			9.750%	NJ - 79.96%


Page 14 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Loan Number	Original	Stated		Current	State &		First
&	Principal	Principal	Paid to	Note	LTV at	Original	Payment
Loan Group	Balance	Balance	Date	Rate	Origination	Term	Date
					Origination
351027899 1
351027899 1	50,000.00	49,525.77	01-Jul-2006	9.300%	TX - 69.55%	360	01-Aug-2005

361030568 1	111,920.00	111,407.49	01-Jun-2006	8.900%	MI - 79.96%	360	01-May-2006
361030583 1	52,000.00	51,861.00	01-Jun-2006	11.450%	MI - 79.97%	360	01-May-2006
401005183 1	251,750.00	249,452.64	01-Jul-2006	7.975%	MA - 94.61%	360	01-Dec-2005
511037626 2	263,200.00	263,200.00	01-Jul-2006	5.350%	CA - 80.00%	360	01-Oct-2005
521030827 2	75,200.00	74,996.14	01-Jul-2006	8.950%	OH - 79.91%	360	01-Jan-2006
521036249 1	76,300.00	76,090.61	01-Jun-2006	12.300%	MO - 69.98%	360	01-May-2006
521036305 1	56,250.00	56,098.03	01-Jun-2006	11.400%	MI - 74.98%	360	01-May-2006
521036958 1	83,600.00	83,184.68	01-Jul-2006	8.500%	MN - 79.95%	360	01-May-2006
581007043 2	682,400.00	677,832.73	01-Jun-2006	7.000%	CA - 79.93%	360	01-May-2006
581007386 2	179,000.00	178,387.74	01-Jul-2006	10.300%	CA - 96.72%	360	01-May-2006
611023050 2	250,000.00	248,960.30	01-Jun-2006	8.700%	NJ - 57.47%	360	01-Jun-2006
641016043 2	136,400.00	135,924.48	01-Jun-2006	10.210%	TX - 79.97%	360	01-May-2006
651017120 1	230,400.00	228,701.83	01-Jul-2006	6.500%	MD - 89.92%	360	01-May-2006
661014704 2	423,450.00	422,551.92	01-Jun-2006	8.350%	CA - 89.98%	360	01-May-2006
661015277 1	376,000.00	374,483.41	01-Jun-2006	6.050%	CA - 79.96%	360	01-May-2006
671009998 2	457,900.00	455,492.22	01-Jun-2006	9.350%	CA - 94.85%	360	01-Mar-2006
671011348 1	373,500.00	371,700.05	01-Jul-2006	8.650%	CA - 89.95%	360	01-May-2006
681010918 1	285,000.00	283,928.18	01-Jul-2006	9.850%	ME - 94.96%	360	01-May-2006
711010012 1	100,000.00	99,516.00	01-Jul-2006	7.950%	NJ - 59.88%	360	01-Jun-2006
831050585 2	372,000.00	367,086.61	01-Jul-2006	6.838%	MA - 79.45%	360	01-Oct-2005
831061974 1	306,000.00	303,744.62	01-Jun-2006	7.125%	CA - 62.35%	360	01-Apr-2006
841012147 2	237,405.00	236,584.33	01-Jul-2006	10.250%	MI - 94.96%	360	01-May-2006


TOTAL	8,100,610.00	8,060,348.74


TOTAL	12,305,290.00	12,246,644.22
TOTAL


Page 15 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Prepayment Report

VOLUNTARY PREPAYMENTS



		Group 2	Group 1	Total


Current


Number of Paid in Full Loans	60	54	114
Number of Repurchased Loans	37	31	68
Total Number of Loans Prepaid in Full	97	85	182
Curtailments Amount	26,843.86	10,801.80	37,645.66
Paid in Full Balance	12,865,630.24	10,535,369.16	23,400,999.40
Repurchased Loans Balance	5,360,202.10	4,452,154.56	9,812,356.66
Total Prepayment Amount	18,252,676.20	14,998,325.52	33,251,001.72
Cumulative


Number of Paid in Full Loans	331	320	651
Number of Repurchased Loans	108	92	200
Total Number of Loans Prepaid in Full	439	412	851
Paid in Full Balance	71,027,523.40	59,991,717.44	131,019,240.84
Repurchased Loans Balance	22,937,544.15	13,965,270.31	36,902,814.46
Curtailments Amount	260,931.78	84,822.28	345,754.06
Total Prepayment Amount	94,225,999.33	74,041,810.03	168,267,809.36

Page 16 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


VOLUNTARY PREPAYMENTS RATES



		Group 2	Group 1	Total





SMM	3.49%	4.43%	3.86%
3 Months Avg SMM	2.95%	3.74%	3.26%
12 Months Avg SMM	2.41%	2.90%	2.61%
Avg SMM Since Cut-off	2.41%	2.90%	2.61%



CPR	34.73%	41.91%	37.64%
3 Months Avg CPR	30.16%	36.72%	32.82%
12 Months Avg CPR	25.42%	29.74%	27.16%
Avg CPR Since Cut-off	25.42%	29.74%	27.16%



PSA	1,709.13%	2,226.01%	1,907.46%
3 Months Avg PSA Approximation	1,645.09%	2,178.41%	1,848.95%
12 Months Avg PSA Approximation	1,766.45%	2,302.52%	1,967.18%
Avg PSA Since Cut-off Approximation	1,766.46%	2,302.51%	1,967.18%

Page 17 of 30

Soundview Home Loan Trust 2006-OPT4

Mortgage Pass-Through Certificates

December 26, 2006 Distribution

PREPAYMENT CALCULATION METHODOLOGY

Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases + Liquidation Balance)/(Beg Principal Balance - Sched Principal)

Conditional Prepayment Rate (CPR): 1-((1-SMM)^12)

PSA Standard Prepayment Model: CPR/(0.02*min(30,WAS))

Average SMM over period between nth month and mth month (AvgSMMn,m): [(1-SMMn)*(1-SMMn+1)*...*(1-SMMm)]^(1/months in period n,m)

Average CPR over period between the nth month and mth month (AvgCPRn,m): 1-((1-AvgSMMn,m)^12)

Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.02*Avg WASn,m))

Average WASn,m: (min(30,WASn)+min(30,WASn+1)+...+min(30,WASm)/(number of months in the period n,m)

Weighted Average Seasoning (WAS)

Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments and repurchases.

Dates correspond to distribution dates.

Page 18 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Prepayment Detail Report

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution


Loan Number		Original			Current	State &	Type Prepayment	First


&	Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Payment

Loan Group	Status	Balance	Amount	Date	Rate	Origination	Original Term	Date

31042070 2		368,000.00	368,000.00	16-Nov-2006	7.100%	CA - 80.00%	Paid Off - 360	01-May-2006
31042070 2		368,000.00	368,000.00	16-Nov-2006	7.100%	CA - 80.00%	Paid Off - 360	01-May-2006
31042078 1		100,000.00	99,658.28	30-Nov-2006	9.650%	CA - 22.72%	Paid Off - 360	01-May-2006
31042888 2		570,000.00	568,132.48	30-Nov-2006	9.100%	CA - 95.00%	Paid Off - 360	01-Jun-2006
71068901 1		143,511.00	142,197.29	12-Dec-2006	8.350%	FL - 94.51%	Paid Off - 360	01-Oct-2005
71069924 2		160,239.00	158,966.67	30-Nov-2006	7.800%	FL - 89.68%	Paid Off - 360	01-Jan-2006
71070436 2		62,250.00	61,962.88	21-Nov-2006	11.150%	FL - 74.86%	Paid Off - 360	01-Jan-2006
71071571 2		112,800.00	112,320.24	20-Nov-2006	8.590%	FL - 79.95%	Paid Off - 360	01-May-2006
71071617 2		130,000.00	129,436.85	30-Nov-2006	8.500%	FL - 51.97%	Paid Off - 360	01-May-2006
81057412 2		109,250.00	108,340.98	24-Nov-2006	8.850%	VA - 94.56%	Paid Off - 360	01-Oct-2005
81059518 2		31,790.00	31,672.13	28-Nov-2006	11.900%	VA - 99.96%	Paid Off - 360	01-Dec-2005
101052178 2		185,400.00	184,312.28	29-Nov-2006	9.300%	AZ - 102.73%	Paid Off - 360	01-Jan-2006
101055142 1		80,000.00	79,792.11	08-Dec-2006	10.940%	OK - 72.70%	Paid Off - 360	01-May-2006
101055344 2		100,800.00	100,408.24	21-Nov-2006	9.050%	NC - 79.96%	Paid Off - 360	01-May-2006
101055346 2		25,200.00	25,119.31	21-Nov-2006	12.750%	NC - 100.00%	Paid Off - 360	01-May-2006
121044904 2		35,485.00	35,277.85	05-Dec-2006	9.750%	MN - 99.94%	Paid Off - 360	01-Jan-2006
121046178 1		122,850.00	122,495.39	20-Nov-2006	10.450%	WI - 64.97%	Paid Off - 360	01-May-2006
121046496 1		270,750.00	269,775.22	21-Nov-2006	9.400%	IL - 94.95%	Paid Off - 360	01-May-2006
131036999 2		80,700.00	80,337.01	29-Nov-2006	10.100%	OH - 99.82%	Paid Off - 360	01-Feb-2006
131038051 1		125,000.00	124,480.51	07-Dec-2006	8.800%	OH - 79.57%	Paid Off - 360	01-May-2006
131038561 1		198,000.00	195,836.07	14-Dec-2006	6.890%	FL - 67.06%	Paid Off - 360	01-May-2006
141049769 2		145,000.00	144,309.28	06-Dec-2006	11.500%	NY - 99.95%	Paid Off - 360	01-Oct-2005
151032185 1		63,750.00	63,556.85	24-Nov-2006	10.600%	PA - 72.40%	Paid Off - 360	01-May-2006
161048174 2		448,750.00	447,730.06	17-Nov-2006	7.650%	MA - 83.08%	Paid Off - 360	01-May-2006
161048188 2		71,800.00	71,566.71	11-Dec-2006	11.750%	MA - 99.99%	Paid Off - 360	01-May-2006
161048223 1		330,300.00	329,706.60	17-Nov-2006	8.450%	MA - 89.98%	Paid Off - 360	01-May-2006
161048342 1		261,250.00	260,650.95	12-Dec-2006	7.600%	MA - 94.97%	Paid Off - 360	01-May-2006
161048414 1		300,000.00	298,265.23	04-Dec-2006	7.050%	MA - 61.81%	Paid Off - 360	01-May-2006
161048706 2		42,200.00	42,058.81	14-Dec-2006	9.750%	MA - 99.99%	Paid Off - 360	01-May-2006
171031217 1		193,500.00	192,935.50	21-Nov-2006	10.400%	AZ - 89.96%	Paid Off - 360	01-May-2006
171031371 2		308,904.00	308,903.97	30-Nov-2006	7.550%	CA - 80.00%	Paid Off - 360	01-May-2006
171031372 2		77,227.00	77,049.19	30-Nov-2006	11.500%	CA - 99.99%	Paid Off - 360	01-May-2006
211035757 2		144,097.00	142,418.75	15-Dec-2006	8.550%	DE - 102.27%	Paid Off - 360	01-Nov-2005
211036702 2		17,587.00	17,514.38	08-Dec-2006	11.400%	GA - 99.96%	Paid Off - 360	01-Dec-2005
211040006 2		76,320.00	75,900.52	15-Dec-2006	8.600%	VA - 89.84%	Paid Off - 360	01-Mar-2006
211041281 2		302,400.00	301,049.63	17-Nov-2006	8.350%	VA - 89.94%	Paid Off - 360	01-May-2006
211041436 1		90,250.00	89,975.29	07-Dec-2006	10.200%	VA - 94.96%	Paid Off - 360	01-May-2006
211041967 2	FCL	82,320.00	81,988.00	15-Dec-2006	8.850%	VA - 79.95%	Paid Off - 360	01-May-2006
211043009 1		185,500.00	184,677.45	24-Nov-2006	7.600%	VA - 70.00%	Paid Off - 360	01-Jun-2006
231070987 2		288,000.00	283,865.38	24-Nov-2006	6.400%	NY - 79.32%	Paid Off - 360	01-Sep-2005
231079761 2		196,000.00	195,426.19	06-Dec-2006	10.400%	RI - 79.97%	Paid Off - 360	01-May-2006


Page 19 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution


Loan Number		Original			Current	State &	Type Prepayment	First


&	Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Payment

Loan Group	Status	Balance	Amount	Date	Rate	Origination	Original Term	Date

231079996 1		125,000.00	124,506.15	28-Nov-2006	8.950%	NH - 65.75%	Paid Off - 360	01-May-2006
231079996 1		125,000.00	124,506.15	28-Nov-2006	8.950%	NH - 65.75%	Paid Off - 360	01-May-2006
231080112 1		133,200.00	132,792.73	12-Dec-2006	10.300%	NJ - 89.96%	Paid Off - 360	01-May-2006
231080302 1		130,000.00	129,604.32	28-Nov-2006	10.200%	VA - 64.97%	Paid Off - 360	01-May-2006
231080901 2		440,000.00	438,937.31	08-Dec-2006	7.150%	MA - 80.00%	Paid Off - 360	01-Jun-2006
261055312 1		84,000.00	83,517.19	20-Nov-2006	9.400%	FL - 79.80%	Paid Off - 360	01-Jan-2006
271027457 1		250,250.00	249,187.80	07-Dec-2006	8.600%	CA - 64.96%	Paid Off - 360	01-May-2006
271027515 1		240,000.00	239,258.26	29-Nov-2006	6.700%	MD - 76.28%	Paid Off - 360	01-May-2006
291003294 2		540,000.00	538,603.13	17-Nov-2006	8.800%	SC - 89.90%	Paid Off - 360	01-Jan-2006
311029974 1		235,000.00	233,971.62	29-Nov-2006	8.450%	NJ - 65.24%	Paid Off - 360	01-May-2006
331044828 2		125,790.00	125,461.00	28-Nov-2006	11.550%	NY - 51.28%	Paid Off - 360	01-Apr-2006
331045412 2		150,000.00	149,485.79	17-Nov-2006	11.400%	NY - 79.93%	Paid Off - 360	01-May-2006
331045518 2		652,500.00	651,374.63	28-Nov-2006	8.590%	NJ - 89.98%	Paid Off - 360	01-May-2006
331045583 1		212,800.00	212,363.38	17-Nov-2006	7.990%	NJ - 69.98%	Paid Off - 360	01-May-2006
331046563 1		154,000.00	153,458.59	20-Nov-2006	8.750%	NJ - 70.00%	Paid Off - 360	01-Jun-2006
341027443 2		108,000.00	105,989.49	20-Nov-2006	8.590%	FL - 78.85%	Paid Off - 360	01-Oct-2005
351030236 2		108,000.00	106,895.63	12-Dec-2006	8.100%	TX - 79.52%	Paid Off - 360	01-Oct-2005
361028645 1		101,150.00	100,568.70	14-Dec-2006	9.400%	MI - 86.23%	Paid Off - 360	01-Jan-2006
361029825 1		91,000.00	90,658.51	20-Nov-2006	9.200%	MI - 88.30%	Paid Off - 360	01-May-2006
371030140 1	FCL	160,000.00	159,337.66	05-Dec-2006	12.275%	FL - 58.05%	Paid Off - 360	01-Dec-2005
371032643 1		199,750.00	199,028.12	28-Nov-2006	9.650%	FL - 84.96%	Paid Off - 360	01-May-2006
381019973 2		199,500.00	195,833.39	22-Nov-2006	6.400%	MA - 93.82%	Paid Off - 360	01-May-2005
381027115 2		233,500.00	233,500.00	15-Dec-2006	6.990%	MA - 66.71%	Paid Off - 360	01-May-2006
381027157 1		125,000.00	124,788.14	16-Nov-2006	8.650%	MA - 24.03%	Paid Off - 360	01-May-2006
401003296 2		329,400.00	325,455.15	17-Nov-2006	7.350%	MA - 89.36%	Paid Off - 360	01-Sep-2005
401006631 1		263,250.00	262,287.36	13-Dec-2006	9.325%	NY - 64.97%	Paid Off - 360	01-May-2006
511040823 1		220,150.00	219,553.19	17-Nov-2006	8.950%	AZ - 84.89%	Paid Off - 360	01-Dec-2005
511043064 2		265,850.00	264,696.76	30-Nov-2006	9.750%	CA - 64.91%	Paid Off - 360	01-Mar-2006
511044572 2		88,250.00	88,040.39	30-Nov-2006	11.400%	CA - 74.52%	Paid Off - 360	01-May-2006
511044960 1		405,000.00	405,000.00	14-Dec-2006	6.890%	CA - 68.64%	Paid Off - 360	01-May-2006
511045012 2		140,000.00	140,000.00	29-Nov-2006	8.550%	CA - 80.00%	Paid Off - 360	01-May-2006
511045155 1		424,000.00	422,144.59	28-Nov-2006	8.450%	CA - 79.95%	Paid Off - 360	01-May-2006
511045389 1		348,000.00	346,461.59	28-Nov-2006	8.400%	CA - 72.46%	Paid Off - 360	01-May-2006
521029657 1	FCL	53,600.00	53,291.78	15-Dec-2006	10.900%	MO - 79.73%	Paid Off - 360	01-Nov-2005
521031052 1		150,000.00	149,508.94	30-Nov-2006	12.050%	IN - 59.91%	Paid Off - 360	01-Jan-2006
521034878 2		31,000.00	30,931.66	01-Dec-2006	11.700%	IL - 99.99%	Paid Off - 360	01-May-2006
521036202 2		407,983.00	407,368.13	20-Nov-2006	9.050%	IL - 89.78%	Paid Off - 360	01-May-2006
571007349 2		222,480.00	221,569.10	14-Dec-2006	7.999%	NJ - 80.00%	Paid Off - 360	01-Jun-2006
571007351 2		55,620.00	55,522.12	14-Dec-2006	12.000%	NJ - 100.00%	Paid Off - 360	01-Jun-2006
581004606 2		405,000.00	402,619.00	01-Dec-2006	9.290%	CA - 68.46%	Paid Off - 360	01-Jan-2006
581007297 1		150,000.00	149,233.62	20-Nov-2006	7.750%	CA - 35.27%	Paid Off - 360	01-May-2006
611021987 2		344,700.00	343,909.65	14-Dec-2006	7.600%	NY - 89.97%	Paid Off - 360	01-May-2006
621012115 2		164,000.00	162,622.25	17-Nov-2006	8.250%	FL - 79.69%	Paid Off - 360	01-Dec-2005
621012115 2			162,622.25		8.250%	FL - 79.69%	Paid Off - 360

Page 20 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution


Loan Number		Original			Current	State &	Type Prepayment	First


&	Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Payment

Loan Group	Status	Balance	Amount	Date	Rate	Origination	Original Term	Date

621012119 2		47,150.00	46,954.75	17-Nov-2006	12.150%	FL - 102.96%	Paid Off - 360	01-Dec-2005
621012119 2		47,150.00	46,954.75	17-Nov-2006	12.150%	FL - 102.96%	Paid Off - 360	01-Dec-2005
621013145 1		75,000.00	74,487.39	14-Dec-2006	8.550%	FL - 46.16%	Paid Off - 360	01-Jan-2006
631012426 1		300,000.00	299,312.10	29-Nov-2006	7.600%	CA - 66.65%	Paid Off - 360	01-May-2006
631013179 1		364,000.00	362,554.30	01-Dec-2006	8.150%	CA - 70.00%	Paid Off - 360	01-Jun-2006
651016854 1		266,250.00	265,497.71	22-Nov-2006	10.550%	FL - 74.97%	Paid Off - 360	01-May-2006
651017049 1		144,000.00	143,597.46	05-Dec-2006	10.600%	KS - 89.97%	Paid Off - 360	01-May-2006
661012344 1		351,000.00	349,556.64	13-Dec-2006	7.200%	CA - 89.83%	Paid Off - 360	01-Jan-2006
661014184 2		324,000.00	324,000.00	30-Nov-2006	7.950%	CA - 80.00%	Paid Off - 360	01-May-2006
661014601 2		436,000.00	436,000.00	11-Dec-2006	6.250%	CA - 83.85%	Paid Off - 360	01-May-2006
661014875 1		380,000.00	378,434.61	05-Dec-2006	8.750%	CA - 79.95%	Paid Off - 360	01-May-2006
671006698 1		84,000.00	82,996.71	07-Dec-2006	6.990%	FL - 72.55%	Paid Off - 360	01-Oct-2005
671008446 2		823,500.00	816,620.80	22-Nov-2006	8.000%	CA - 89.63%	Paid Off - 360	01-Jan-2006
671010831 1		144,000.00	143,481.56	29-Nov-2006	9.400%	FL - 79.96%	Paid Off - 360	01-May-2006
671011211 1		369,000.00	366,824.26	24-Nov-2006	6.950%	CA - 63.57%	Paid Off - 360	01-May-2006
671011275 2		109,000.00	108,720.36	27-Nov-2006	11.000%	CA - 99.99%	Paid Off - 360	01-May-2006
671011331 2		632,000.00	630,761.72	22-Nov-2006	8.150%	CA - 79.98%	Paid Off - 360	01-May-2006
671011388 1		318,750.00	318,339.84	30-Nov-2006	9.050%	CA - 75.00%	Paid Off - 360	01-Jun-2006
681012060 1		106,000.00	105,718.72	01-Dec-2006	10.100%	ME - 62.54%	Paid Off - 360	01-Jun-2006
691007752 1		196,500.00	196,080.36	29-Nov-2006	7.850%	MD - 74.98%	Paid Off - 360	01-May-2006
691007858 1		170,100.00	169,487.61	06-Dec-2006	9.400%	MD - 62.97%	Paid Off - 360	01-May-2006
691008027 2		306,000.00	305,382.96	05-Dec-2006	8.050%	MD - 89.97%	Paid Off - 360	01-May-2006
691008309 1		135,000.00	134,366.30	30-Nov-2006	7.480%	DC - 22.50%	Paid Off - 360	01-Jun-2006
711009982 2		445,000.00	444,299.10	08-Dec-2006	8.900%	NY - 89.88%	Paid Off - 360	01-May-2006
721007988 1		112,000.00	110,235.43	24-Nov-2006	5.900%	AZ - 79.25%	Paid Off - 360	01-Sep-2005
741014314 2		40,250.00	40,062.17	08-Dec-2006	10.400%	FL - 102.95%	Paid Off - 360	01-Jan-2006
741015877 2		125,000.00	124,506.17	04-Dec-2006	9.050%	GA - 43.08%	Paid Off - 360	01-May-2006
761015957 2		171,000.00	171,000.00	05-Dec-2006	10.600%	MN - 95.00%	Paid Off - 360	01-May-2006
841009241 2		23,400.00	23,282.86	15-Dec-2006	10.900%	MI - 99.95%	Paid Off - 360	01-Nov-2005
841011602 1		122,000.00	121,604.41	16-Nov-2006	9.900%	MI - 77.18%	Paid Off - 360	01-May-2006
841012062 2		123,405.00	122,940.97	29-Nov-2006	9.190%	MI - 94.95%	Paid Off - 360	01-May-2006
861000025 1		220,000.00	218,268.77	11-Dec-2006	8.300%	FL - 64.46%	Paid Off - 360	01-Dec-2005
871004498 2		128,800.00	128,216.01	16-Nov-2006	8.700%	NJ - 79.95%	Paid Off - 360	01-May-2006
31041673 2		49,980.00	49,773.01	15-Dec-2006	8.720%	TN - 99.99%	Repur/Subs - 360	01-May-2006
41065653 2		128,250.00	126,390.82	15-Dec-2006	7.650%	IL - 94.08%	Repur/Subs - 360	01-May-2005
41072394 1		65,000.00	64,367.72	15-Dec-2006	7.650%	IL - 35.93%	Repur/Subs - 360	01-Nov-2005
51058327 1		17,427.00	17,272.07	15-Dec-2006	11.500%	GA - 99.87%	Repur/Subs - 360	01-Jul-2005
51061855 2		22,590.00	22,509.28	15-Dec-2006	11.650%	GA - 99.97%	Repur/Subs - 360	01-Jan-2006
51063904 2		96,900.00	96,695.58	15-Dec-2006	11.900%	AL - 94.97%	Repur/Subs - 360	01-May-2006
61056870 2		25,800.00	25,588.21	15-Dec-2006	10.750%	OH - 99.89%	Repur/Subs - 360	01-Apr-2005
61063183 2		86,400.00	85,998.98	15-Dec-2006	10.450%	KY - 79.83%	Repur/Subs - 360	01-Jan-2006
61063855 2		112,500.00	111,025.06	15-Dec-2006	8.750%	OH - 89.95%	Repur/Subs - 360	01-May-2006
81058273 2		15,000.00	14,938.00	15-Dec-2006	11.400%	VA - 99.96%	Repur/Subs - 360	01-Dec-2005
81058273 2			14,938.00		11.400%	VA - 99.96%	Repur/Subs - 360

Page 21 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution


Loan Number		Original			Current	State &	Type Prepayment	First


&	Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Payment

Loan Group	Status	Balance	Amount	Date	Rate	Origination	Original Term	Date

81059944 2		37,000.00	36,867.46	15-Dec-2006	11.650%	VA - 99.97%	Repur/Subs - 360	01-Jan-2006
81059944 2		37,000.00	36,867.46	15-Dec-2006	11.650%	VA - 99.97%	Repur/Subs - 360	01-Jan-2006
81060547 2		17,200.00	17,152.31	15-Dec-2006	12.350%	VA - 99.98%	Repur/Subs - 360	01-Feb-2006
101053715 2		60,800.00	60,449.39	15-Dec-2006	8.900%	TX - 79.82%	Repur/Subs - 360	01-Feb-2006
101053718 2		17,480.00	17,426.84	15-Dec-2006	11.925%	TX - 102.97%	Repur/Subs - 360	01-Feb-2006
101054852 1		257,360.00	256,327.37	15-Dec-2006	8.875%	TX - 64.95%	Repur/Subs - 360	01-May-2006
101055192 2		108,000.00	107,586.30	15-Dec-2006	9.100%	TX - 79.96%	Repur/Subs - 360	01-May-2006
121043757 1		157,700.00	156,674.50	15-Dec-2006	9.650%	WI - 94.68%	Repur/Subs - 360	01-Nov-2005
121044519 1		114,380.00	113,774.92	15-Dec-2006	9.800%	WI - 69.84%	Repur/Subs - 360	01-Jan-2006
121044693 1		273,000.00	271,723.74	15-Dec-2006	10.390%	WI - 73.63%	Repur/Subs - 360	01-Jan-2006
131038668 1		75,920.00	75,534.12	15-Dec-2006	8.100%	MO - 79.95%	Repur/Subs - 360	01-May-2006
141053728 2		595,000.00	593,729.37	15-Dec-2006	7.850%	NY - 84.97%	Repur/Subs - 360	01-May-2006
141053826 2		354,400.00	354,400.00	15-Dec-2006	7.950%	NY - 80.00%	Repur/Subs - 360	01-May-2006
161046045 2		63,000.00	62,865.63	15-Dec-2006	13.980%	NH - 84.92%	Repur/Subs - 360	01-Jan-2006
171027118 2		53,980.00	53,672.06	15-Dec-2006	11.000%	NV - 99.93%	Repur/Subs - 360	01-Sep-2005
191024062 1		89,600.00	88,937.03	15-Dec-2006	10.090%	WA - 79.64%	Repur/Subs - 360	01-Aug-2005
191026747 2		168,350.00	167,161.48	15-Dec-2006	9.250%	WA - 69.74%	Repur/Subs - 360	01-Nov-2005
191029234 1		249,900.00	249,417.25	15-Dec-2006	12.300%	ID - 59.98%	Repur/Subs - 360	01-May-2006
281017878 1		78,000.00	77,674.29	15-Dec-2006	11.350%	PA - 64.87%	Repur/Subs - 360	01-Dec-2005
321030687 2		107,600.00	106,841.90	15-Dec-2006	8.400%	WA - 79.75%	Repur/Subs - 360	01-Jan-2006
331043422 1		217,500.00	216,628.98	15-Dec-2006	10.650%	NY - 62.05%	Repur/Subs - 360	01-Feb-2006
341028847 1		64,800.00	64,479.06	15-Dec-2006	10.200%	NC - 79.82%	Repur/Subs - 360	01-Jan-2006
351031848 2		115,445.00	114,694.79	15-Dec-2006	8.800%	TX - 79.94%	Repur/Subs - 360	01-Jan-2006
351032153 1		80,000.00	79,620.77	15-Dec-2006	9.850%	TX - 79.85%	Repur/Subs - 360	01-Feb-2006
351034044 1		113,520.00	113,062.18	15-Dec-2006	8.850%	TX - 79.95%	Repur/Subs - 360	01-May-2006
351034124 2		67,355.00	67,215.70	15-Dec-2006	11.990%	TX - 94.97%	Repur/Subs - 360	01-May-2006
351034163 1		56,000.00	55,123.43	15-Dec-2006	11.120%	TX - 79.83%	Repur/Subs - 180	01-May-2006
361024710 1		113,600.00	112,044.33	15-Dec-2006	7.350%	MI - 79.30%	Repur/Subs - 360	01-Jul-2005
361028540 1		105,925.00	105,717.35	15-Dec-2006	9.750%	MI - 94.92%	Repur/Subs - 360	01-Jan-2006
361028901 1		263,500.00	262,580.85	15-Dec-2006	7.760%	MI - 82.22%	Repur/Subs - 360	01-Jan-2006
361030314 2		24,980.00	24,935.30	15-Dec-2006	12.700%	MI - 100.00%	Repur/Subs - 360	01-May-2006
371029192 1		196,350.00	194,820.29	15-Dec-2006	8.350%	FL - 84.68%	Repur/Subs - 360	01-Dec-2005
391015155 2		19,400.00	19,235.44	15-Dec-2006	8.340%	TN - 99.91%	Repur/Subs - 360	01-Nov-2005
401006783 1		219,200.00	218,443.04	15-Dec-2006	9.600%	AZ - 79.82%	Repur/Subs - 360	01-May-2006
521028035 1		124,800.00	123,562.37	15-Dec-2006	8.600%	MO - 79.52%	Repur/Subs - 360	01-Sep-2005
521035213 1		125,300.00	124,906.33	15-Dec-2006	10.050%	IL - 59.64%	Repur/Subs - 360	01-May-2006
521035503 2		258,300.00	257,247.51	15-Dec-2006	8.800%	IL - 89.95%	Repur/Subs - 360	01-May-2006
551008703 2		170,950.00	169,316.43	15-Dec-2006	8.400%	TX - 64.64%	Repur/Subs - 360	01-Oct-2005
551010195 2		68,400.00	68,103.17	15-Dec-2006	10.750%	TX - 79.85%	Repur/Subs - 360	01-Jan-2006
551011471 2		25,700.00	25,649.78	15-Dec-2006	12.250%	OK - 99.99%	Repur/Subs - 360	01-May-2006
561003505 2		39,980.00	39,688.96	15-Dec-2006	9.875%	FL - 99.91%	Repur/Subs - 360	01-Oct-2005
561003735 2		124,000.00	123,372.66	15-Dec-2006	7.050%	FL - 79.79%	Repur/Subs - 360	01-Nov-2005
611019895 1		185,500.00	184,230.10	15-Dec-2006	8.990%	NY - 42.02%	Repur/Subs - 360	01-Dec-2005
611019895 1			184,230.10		8.990%	NY - 42.02%	Repur/Subs - 360

Page 22 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution


Loan Number		Original			Current	State &	Type Prepayment	First


&	Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Payment

Loan Group	Status	Balance	Amount	Date	Rate	Origination	Original Term	Date

611020615 2		165,750.00	164,802.88	15-Dec-2006	9.000%	NY - 84.81%	Repur/Subs - 360	01-Feb-2006
611020615 2		165,750.00	164,802.88	15-Dec-2006	9.000%	NY - 84.81%	Repur/Subs - 360	01-Feb-2006
611020796 1		335,000.00	332,800.82	15-Dec-2006	8.750%	NY - 78.59%	Repur/Subs - 360	01-Jan-2006
631009425 1		350,000.00	345,787.39	15-Dec-2006	6.950%	CA - 73.65%	Repur/Subs - 360	01-Oct-2005
631010101 2		1,100,000.00	1,091,481.89	15-Dec-2006	6.240%	CA - 63.65%	Repur/Subs - 360	01-Nov-2005
641010815 1		63,200.00	62,631.42	15-Dec-2006	8.800%	OK - 79.57%	Repur/Subs - 360	01-Sep-2005
641012808 1		82,800.00	82,195.16	15-Dec-2006	9.100%	AR - 89.65%	Repur/Subs - 360	01-Nov-2005
651010766 2		284,000.00	281,503.06	15-Dec-2006	9.250%	FL - 55.72%	Repur/Subs - 360	01-Aug-2005
651016884 2		121,125.00	120,693.45	15-Dec-2006	9.450%	KY - 94.95%	Repur/Subs - 360	01-May-2006
651017224 2		96,800.00	96,409.59	15-Dec-2006	8.850%	TN - 79.95%	Repur/Subs - 360	01-May-2006
661009493 2		70,000.00	69,565.22	15-Dec-2006	10.875%	CA - 99.92%	Repur/Subs - 360	01-Oct-2005
681009696 1		140,000.00	139,269.15	15-Dec-2006	10.300%	ME - 82.14%	Repur/Subs - 360	01-Dec-2005
681009731 2		447,000.00	445,175.25	15-Dec-2006	7.200%	NH - 74.36%	Repur/Subs - 360	01-Jan-2006
681009782 1		94,500.00	93,961.84	15-Dec-2006	9.900%	ME - 74.79%	Repur/Subs - 360	01-Dec-2005
731010360 2		70,040.00	70,039.34	15-Dec-2006	7.750%	SC - 80.00%	Repur/Subs - 360	01-Jun-2005
841008282 1		57,600.00	57,250.62	15-Dec-2006	9.600%	MI - 79.76%	Repur/Subs - 360	01-Jan-2006
841009778 1		112,000.00	111,336.07	15-Dec-2006	9.250%	MI - 79.79%	Repur/Subs - 360	01-Jan-2006


TOTAL	33,364,845.00	33,213,356.06

Page 23 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Realized Loss Report

COLLATERAL REALIZED LOSSES



	Group 2	Group 1	Total


Current





Subsequent Recoveries	0.00	0.00	0.00
Number of Loans Liquidated	0	0	0
Collateral Principal Realized Loss/(Gain) Amount	0.00	0.00	0.00
Collateral Interest Realized Loss/(Gain) Amount	0.00	0.00	0.00
Net Liquidation Proceeds	0.00	0.00	0.00
Cumulative
Cumulative



Number of Loans Liquidated	0	1	1
Collateral Realized Loss/(Gain) Amount	0.00	940.00	940.00
Net Liquidation Proceeds	0.00	113,461.52	113,461.52
Cumulative Subsequent Recoveries	0.00	0.00	0.00

Page 24 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution


DEFAULT SPEEDS

	Group 2	Group 1	Total



MDR	0.00%	0.00%	0.00%
3 Months Avg MDR	0.00%	0.01%	0.00%
12 Months Avg MDR	0.00%	0.00%	0.00%
Avg MDR Since Cut-off	0.00%	0.00%	0.00%


CDR	0.00%	0.00%	0.00%
3 Months Avg CDR	0.00%	0.13%	0.05%
12 Months Avg CDR	0.00%	0.05%	0.02%
Avg CDR Since Cut-off	0.00%	0.05%	0.02%


SDA	0.00%	0.00%	0.00%
3 Months Avg SDA Approximation	0.00%	0.75%	0.28%
12 Months Avg SDA Approximation	0.00%	0.42%	0.15%
Avg SDA Since Cut-off Approximation	0.00%	0.42%	0.15%


Loss Severity Approximation for Current Period	0.00%	0.00%	0.00%
3 Months Avg Loss Severity Approximation	0.00%	0.82%	0.82%
12 Months Avg Loss Severity Approximation	0.00%	0.82%	0.82%
Avg Loss Severity Approximation Since Cut-off	0.00%	0.82%	0.82%

Page 25 of 30

Soundview Home Loan Trust 2006-OPT4

Mortgage Pass-Through Certificates

December 26, 2006 Distribution

COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY

Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)

Conditional Default Rate (CDR): 1-((1-MDR)^12)

SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)*0.02,MAX(0.03,MIN(30,WAS)*0.02-0.0095*(WAS-60)))

Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn)*(1-MDRn+1)*...*(1-MDRm)]^(1/months in period n,m)

Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)

Average SDA Approximation over period between the nth month and mth month:

AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)*0.02,MAX(0.03,MIN(30,Avg WASn,m)*0.02-0.0095*(Avg WASn,m-60)))

Average WASn,m: (WASn + WASn+1 +...+ WASm )/(number of months in the period n,m)

Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)

Average Loss Severity Approximation over period between nth month and mth month: Weighted Avg(Loss Severityn,m)

Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.

Dates correspond to distribution dates.

Page 26 of 30

Soundview Home Loan Trust 2006-OPT4

Mortgage Pass-Through Certificates

December 26, 2006 Distribution

Realized Loss Detail Report

Loan Number

Current

State &

Prior

Realized

Cumulative

Loan

Note

LTV at

Original

Principal

Loss/(Gain)

Realized

Loan Group

Status

Rate

Origination

Term

Balance

Revision

Loss/(Gain)

TOTAL

Page 27 of 30

Soundview Home Loan Trust 2006-OPT4

Mortgage Pass-Through Certificates

December 26, 2006 Distribution

Triggers and Adj. Cert. Report

TRIGGER EVENTS

Group 2

Group 1

Total

Trigger Event in effect

Stepdown Date has occurred

Credit Enhancement Percentage (Step Down)

23.6624%

Delinquency Percentage

3.6537%

Realized Loss Percentage

0.0001%

Ending Balance

828,320,091.72

Senior Credit Enhancement Percentage

22.7375%

ADJUSTABLE RATE CERTIFICATE INFORMATION

SPACE INTENTIONALLY LEFT BLANK

ADDITIONAL INFORMATION

Group 2

Group 1

Total

LIBOR Rate Determination Date

11/22/2006

Libor For Current Period

5.32000%

NEXT LIBOR Rate Determination Date

12/21/2006

Libor For Next Period

5.35000%

Page 28 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Additional Certificate Report

ADDITIONAL CERTIFICATE REPORT

		Next Pass Through Rate	NET WAC Shortfall CarryOver	NET WAC Shortfall Paid
CLASS

	I-A-1	5.50%	$0.00	$0.00
		5.50%	$0.00	$0.00
	II-A-1	5.38%	$0.00	$0.00
		5.38%	$0.00	$0.00
	II-A-2	5.44%	$0.00	$0.00
		5.44%	$0.00	$0.00
	II-A-3	5.50%	$0.00	$0.00
		5.50%	$0.00	$0.00
	II-A-4	5.58%	$0.00	$0.00
		5.58%	$0.00	$0.00
	M-1	5.63%	$0.00	$0.00
		5.63%	$0.00	$0.00
	M-2	5.66%	$0.00	$0.00
		5.66%	$0.00	$0.00
	M-3	5.71%	$0.00	$0.00
		5.71%	$0.00	$0.00
	M-4	5.74%	$0.00	$0.00
		5.74%	$0.00	$0.00
	M-5	5.81%	$0.00	$0.00
		5.81%	$0.00	$0.00
	M-6	6.25%	$0.00	$0.00
		6.25%	$0.00	$0.00
	M-7	6.55%	$0.00	$0.00
		6.55%	$0.00	$0.00
	M-8	7.35%	$0.00	$0.00
		7.35%	$0.00	$0.00
	M-9	7.85%	$0.00	$0.00
		7.85%	$0.00	$0.00
	C	0.00%	$0.00	$0.00
		0.00%	$0.00	$0.00
	P	0.00%	$0.00	$0.00
		0.00%	$0.00	$0.00
	R	0.00%	$0.00	$0.00
		0.00%	$0.00	$0.00
	R-X	0.00%	$0.00	$0.00
		0.00%	$0.00	$0.00




Page 29 of 30

Soundview Home Loan Trust 2006-OPT4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2006 Distribution

Other Related Information
ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
	Group 2	Group 1	Total
Scheduled Payments for all Mortgage Loans	3,758,273.26	2,513,013.88	6,271,287.13
Current Scheduled Payments 1 Month Prior	3,877,717.60	2,637,686.03	6,515,403.63
Current Scheduled Payments 2 Month Prior	3,983,781.07	2,731,091.18	6,714,872.26
Current Scheduled Payments 3 Month Prior	4,114,334.64	2,827,382.39	6,941,717.03
Current Scheduled Payments 4 Month Prior	4,246,109.89	2,928,692.44	7,174,802.33
Current Scheduled Payments 5 Month Prior	4,317,029.15	2,986,423.22	7,303,452.37
Current Scheduled Payments 6 Month Prior	4,375,935.32	3,017,110.42	7,393,045.73
Current Scheduled Payments 7 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 8 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 9 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 10 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 11 Month Prior	0.00	0.00	0.00





Sched. Payments for 60+Day Delinquent Loans	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 1 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 2 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 3 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 4 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 5 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 6 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 7 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 8 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 9 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 10 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 11 Month Prior	0.00	0.00	0.00





Page 30 of 30

Soundview Home Loan Trust 2006-OPT4 10-D