

                           SECURITIES AND EXCHANGE COMMISSION
                                 Washington, D.C.  20549


                                        FORM 8-K


                     Current Report Pursuant To Section 13 or 15(d) of
                            the Securities Exchange Act of 1934

           Date of Report (Date of earliest event reported):  October 27, 2003


                                IMPAC CMB TRUST SERIES 2003-4.
              (as Company under a Series 2003-4 Indenture, dated as of
           March 31,2003 providing for, inter alia, the issuance of
               Collateralized Asset Backed Bonds, Series 2003-4).


                  IMPAC CMB TRUST COLLATERLIZED AS BOND SERIES 2003-4
                 (Exact name of Registrant as specified in its Charter)


                                       California
                    (State or Other Jurisdiction of Incorporation)

               333-103591-01                          33-0705301
          (Commission File Number)        (I.R.S. Employer Identification No.)


          1401 DOVE STREET
          NEWPORT BEACH, CALIFORNIA                    92660
          (Address of principal executive offices)     (Zip Code)


          Registrant's Telephone Number, Including Area Code:  (949) 475-3600


     Item 5.  Other Events

     Attached hereto is a copy of the Monthly Remittance Statements to the
     Certificateholders which was derived from the monthly information
     submitted by the Master Servicer of the Trust to the Trustee.


     Item 7.  Financial Statement and Exhibits

     Exhibits:  (as noted in Item 5 above)

     Monthly Remittance Statement to the Certificateholders dated as of
     October 27, 2003..



                                     SIGNATURE


               Pursuant to the requirements of the Securities Exchange Act of
          1934, the Registrant has duly caused this report to be signed on its
          behalf by the undersigned, hereunto duly authorized.


                                  Deutsche Bank National Trust Company,
                                  not in its individual capacity, but solely as
                                  a duly authorized agent of the Registrant
                                  pursuant to the Indenture, dated as of
                                  March 31,2003.



          Date:  Oct 29, 2003               By:  /s/  Katherine M. Wannenmacher
                                            Katherine M. Wannenmacher
                                            Vice President



                                   EXHIBIT INDEX

          DOCUMENT

          Monthly Remittance Statement to the Certificateholders
          dated as of October 27, 2003.


	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates


	October 27, 2003 Distribution


	Contents



			TABLE OF CONTENTS

								Page

			1.	Contents				1
			2.	Certificate Payment Report				2
			3.	Collection Account Report				4
			4.	Credit Enhancement Report				7
			5.	Collateral Report				8
			6.	Delinquency Report				11
			7.	REO Report				15
			8.	Prepayment Report				16
			9.	Prepayment Detail Report				19
			10.	Realized Loss Report				20
			11.	Realized Loss Detail Report				23
			12.	Triggers, Adj. Rate Cert. and Miscellaneous Report				24





				Total Number of Pages				24



			CONTACTS

				Administrator: James Noriega
				Direct Phone Number: (714)247-6281
				Address: Deutsche Bank
				1761 E. St. Andrew Place, Santa Ana, CA 92705

				Web Site: https://www.corporatetrust.db.com/invr
				Factor Information: (800) 735-7777
				Main Phone Number: (714) 247-6000



ISSUANCE INFORMATION

	Seller:		Impac Funding Corp.					Cut-Off Date: March 1, 2003
	Certificate Insurer(s):		AMBAC Indemnity Corporation					Closing Date: March 31, 2003
								First Payment Date: April 25, 2003
	Servicer(s):		Impac Funding Corp. Master Servicer
			Wendover Funding, Inc. Sub-Servicer
			Countrywide Home Loans, Inc. Sub-Servicer
			GMAC Sub-Servicer					Distribution Date: October 27, 2003
	Underwriter(s):		Countrywide Funding Corporation Underwriter					Record Date: October 24, 2003
								September 30, 2003






						Page 1 of 24					© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Certificate Payment Report for October 27, 2003 Distribution


	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)

1-A-1	FLT, STEP,	253,125,000.00			232,018,886.91	296,984.18	6,603,877.01	6,900,861.19	-	-	225,415,009.90
2-A-1	FLT, STEP,	11,217,000.00			11,145,430.98	16,148.49	14,159.47	30,307.96	-	-	11,131,271.51
3-A-1	STEP, AFC	259,500,000.00			249,663,806.84	901,910.50	4,031,331.77	4,933,242.27	-	-	245,632,475.07
3-A-IO	IO, NTL	-			-	187,503.48	-	187,503.48	-	-	-
3-M-1	MEZ, STEP,	18,750,000.00			18,039,292.41	72,563.05	291,281.20	363,844.25	-	-	17,748,011.21
3-M-2	MEZ, STEP,	15,000,000.00			14,431,433.92	62,884.97	233,024.96	295,909.93	-	-	14,198,408.96
1-B-1	SUB, FLT, S	14,850,000.00			13,611,774.71	49,849.34	387,427.45	437,276.79	-	-	13,224,347.26
3-B-1	SUB, STEP,	5,250,000.00			5,051,001.86	24,059.89	81,558.74	105,618.63	-	-	4,969,443.12
Cert	R	-			-	919,907.04	-	919,907.04	-	-	-


Total		577,692,000.00			543,961,627.63	2,531,810.94	11,642,660.59	14,174,471.53	-	-	532,318,967.03


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

1-A-1	09/25/03	10/26/03		A-Act/360	45254NED5	253,125,000.00	916.617825	1.173271	26.089391	27.262661	890.528434
2-A-1	09/25/03	10/26/03		A-Act/360	45254NEF0	11,217,000.00	993.619593	1.439644	1.262322	2.701967	992.357271
3-A-1	09/25/03	10/26/03		F-30/360	45254NEG8	259,500,000.00	962.095595	3.475570	15.534997	19.010568	946.560598
3-A-IO	09/25/03	10/26/03		F-30/360	45254NEH6	37,500,695.00	1,000.000000	5.000000	-	5.000000	1,000.000000
3-M-1	09/25/03	10/26/03		F-30/360	45254NEJ2	18,750,000.00	962.095595	3.870029	15.534997	19.405027	946.560598
3-M-2	09/25/03	10/26/03		F-30/360	45254NEK9	15,000,000.00	962.095595	4.192331	15.534997	19.727329	946.560597
1-B-1	09/25/03	10/26/03		A-Act/360	45254NEE3	14,850,000.00	916.617826	3.356858	26.089391	29.446248	890.528435
3-B-1	09/25/03	10/26/03		F-30/360	45254NEL7	5,250,000.00	962.095592	4.582836	15.534997	20.117833	946.560594
Cert	09/25/03	10/26/03		-Act/360		-	-	-	-	-	-


							Page 2 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Certificate Payment Report for October 27, 2003 Distribution


	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)

1-A-1	253,125,000.00		2,154,884.87		26,733,343.49	976,646.61	27,709,990.10	29,864,874.97	-	-	225,415,009.90
2-A-1	11,217,000.00		110,494.23		0.02	85,728.47	85,728.49	196,222.72	-	-	11,131,271.51
3-A-1	259,500,000.00		6,333,376.87		12,011,320.72	1,856,204.20	13,867,524.93	20,200,901.80	-	-	245,632,475.07
3-A-IO	-		1,312,524.36		-	-	-	1,312,524.36	-	-	-
3-M-1	18,750,000.00		502,925.36		894,693.76	107,295.04	1,001,988.80	1,504,914.16	-	-	17,748,011.21
3-M-2	15,000,000.00		431,958.49		764,037.77	37,553.26	801,591.04	1,233,549.53	-	-	14,198,408.96
1-B-1	14,850,000.00		351,320.73		1,568,356.14	57,296.60	1,625,652.74	1,976,973.47	-	-	13,224,347.26
3-B-1	5,250,000.00		164,503.03		243,003.60	37,553.26	280,556.86	445,059.89	-	-	4,969,443.12
Cert	-		6,191,612.22		-	-	-	6,191,612.22	-	-	-


Total	577,692,000.00		17,553,600.16		42,214,755.50	3,158,277.45	45,373,032.95	62,926,633.11	-	-	532,318,967.03


	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)

1-A-1	1.44000%	232,018,886.91			296,984.18	-	-	-	296,984.18	296,984.18	-
2-A-1	1.63000%	11,145,430.98			16,148.49	-	-	-	16,148.49	16,148.49	-
3-A-1	4.33500%	249,663,806.84			901,910.50	-	-	-	901,910.50	901,910.50	-
3-A-IO	6.00000%	37,500,695.00			187,503.48	-	-	-	187,503.48	187,503.48	-
3-M-1	4.82700%	18,039,292.41			72,563.05	-	-	-	72,563.05	72,563.05	-
3-M-2	5.22900%	14,431,433.92			62,884.97	-	-	-	62,884.97	62,884.97	-
1-B-1	4.06251%	13,611,774.71			49,153.79	-	-	-	49,849.34	49,849.34	-
3-B-1	5.71607%	5,051,001.86			24,059.89	-	-	-	24,059.89	24,059.89	-
Cert		-			-	-	-	-	-	919,907.04	-


Total		581,462,322.63			1,611,208.35	-	-	-	1,611,903.90	2,531,810.94	-


							Page 3 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Collection Account Report for October 27, 2003 Distribution


	Collection Account Report


SUMMARY					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Principal Collections				4,637,196.67	14,159.48	6,991,304.46	11,642,660.61
	Principal Withdrawals				0.00	0.00	0.00	0.00
	Principal Other Accounts				0.00	0.00	0.00	0.00
	TOTAL PRINCIPAL				4,637,196.67	14,159.48	6,991,304.46	11,642,660.61

	Interest Collections				1,671,991.97	57,506.87	1,101,510.00	2,831,008.84
	Interest Withdrawals				0.00	0.00	0.00	0.00
	Interest Other Accounts				0.00	(19,902.07)	(129,688.85)	(149,590.92)
	Interest Fees				(63,674.28)	(1,939.19)	(83,993.53)	(149,607.00)
	TOTAL INTEREST				1,608,317.69	35,665.61	887,827.62	2,531,810.92

	TOTAL AVAILABLE FUNDS TO BONDHOLDERS				6,245,514.36	49,825.09	7,879,132.08	14,174,471.53


PRINCIPAL - COLLECTIONS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Scheduled Principal				314,972.47	14,165.37	177,532.03	506,669.87
	Curtailments				21,880.11	(5.89)	23,845.84	45,720.06
	Prepayments in Full				4,300,344.09	0.00	6,789,926.59	11,090,270.68
	Repurchases/Substitutions				0.00	0.00	0.00	0.00
	Liquidations				0.00	0.00	0.00	0.00
	Insurance Principal				0.00	0.00	0.00	0.00
	Other Additional Principal				0.00	0.00	0.00	0.00
	Delinquent Principal				(62,874.27)	(13,677.91)	(142,225.08)	(218,777.26)
	Realized Losses				0.00	0.00	0.00	0.00
	Substitution Adjustments- Principal				0.00	0.00	0.00	0.00
	Termination Price Amounts- Principal				0.00	0.00	0.00	0.00
	Additional Principal Amts				0.00	0.00	0.00	0.00
	Principal Advanced				62,874.27	13,677.91	142,225.08	218,777.26

	TOTAL PRINCIPAL				4,637,196.67	14,159.48	6,991,304.46	11,642,660.61


				Page 4 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Collection Account Report for October 27, 2003 Distribution


	Collection Account Report


PRINCIPAL - WITHDRAWALS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL
SPACE INTENTIONALLY LEFT BLANK


PRINCIPAL - OTHER ACCOUNTS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL
SPACE INTENTIONALLY LEFT BLANK


INTEREST - COLLECTIONS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Scheduled Interest				1,633,613.94	60,375.81	1,167,794.08	2,861,783.83
	Repurchases/Substitutions				0.00	0.00	0.00	0.00
	Liquidations				0.00	0.00	0.00	0.00
	Insurance Interest				0.00	0.00	0.00	0.00
	Other Additional Interest				0.00	0.00	0.00	0.00
	Prepayment Interest Shortfalls				(14,597.51)	0.00	(17,589.71)	(32,187.22)
	Relief Act Interest Shortfalls				0.00	0.00	(220.38)	(220.38)
	Delinquent Interest				(372,016.38)	(58,208.02)	(926,359.08)	(1,356,583.48)
	Interest Realized Losses				0.00	0.00	0.00	0.00
	Compensating Interest				14,597.51	0.00	17,589.71	32,187.22
	Substitution Adjustments- Interest				0.00	0.00	0.00	0.00
	Termination Price Amounts- Interest				0.00	0.00	0.00	0.00
	Additional Interest Amts				0.00	0.00	0.00	0.00
	Interest Prepayment Premiums				52,837.56	0.00	0.00	52,837.56
	Interest Advanced				357,556.85	55,339.08	860,295.38	1,273,191.31
	Cap Contract Payment Amt				0.00	0.00	0.00	0.00

	TOTAL INTEREST				1,671,991.97	57,506.87	1,101,510.00	2,831,008.84


				Page 5 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Collection Account Report for October 27, 2003 Distribution


	Collection Account Report


INTEREST - WITHDRAWALS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Prev. Unreimbursed PMI Premiums				0.00	0.00	0.00	0.00
	Prev. Unreimbursed Spec Haz Premiums				0.00	0.00	0.00	0.00
	Prev. Unreimbursed Liq. Expenses				0.00	0.00	0.00	0.00
	Prev. Unreimbursed Master/Sub-Servicing Fees				0.00	0.00	0.00	0.00
	Amt Rvcd Not Due Bondholder /Deposits in Error				0.00	0.00	0.00	0.00
	Prev. Unreimb. P&I Advances/Non Recov Advances				0.00	0.00	0.00	0.00
	Prev. Unreimbursed Servicing Advances				0.00	0.00	0.00	0.00
	Clear and Terminate Collection Account				0.00	0.00	0.00	0.00

	TOTAL INTEREST WITHDRAWALS				0.00	0.00	0.00	0.00

INTEREST - OTHER ACCOUNTS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Cap Contract Payment Amounts				0.00	0.00	0.00	0.00
	Floor Contract Payment Amounts				0.00	0.00	0.00	0.00
	Swap Contract Payment Amounts				0.00	19,902.07	129,688.85	149,590.92


INTEREST - FEES					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Owner Trustee Fee				408.97	18.06	350.85	777.88
	Indenture Trustee Fee				1,202.86	53.12	1,031.90	2,287.88
	Bond Insurance Premium Amount				0.00	1,762.45	35,690.71	37,453.16
	Radian PMI Insurance Premiums				9,162.02	0.00	29,399.98	38,562.00
	Current Servicing Fees				52,900.43	105.56	17,520.09	70,526.08

	TOTAL INTEREST FEES				63,674.28	1,939.19	83,993.53	149,607.00


				Page 6 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Credit Enhancement Report for October 27, 2003 Distribution


	Credit Enhancement Report


ACCOUNTS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL
SPACE INTENTIONALLY LEFT BLANK


INSURANCE					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL
SPACE INTENTIONALLY LEFT BLANK


STRUCTURAL FEATURES					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Current Periods Required Overcollateralization Amt				1,500,000.25	1,602,435.20	2,025,010.53	5,127,445.98
	Current Periods Overcollateralization Amt				1,500,000.26	1,602,435.20	2,025,010.53	5,127,445.99
	Current Periods Net Monthly Excess Cashflow				359,395.81	19,517.13	541,910.03	561,427.16
	Current Periods Overcollateralization Release				0.01	0.01	0.00	0.01
	Current Periods Principal Available Funds Shortfall						0.00	0.00

	60 Day Rolling Delinquency Amount				0.00	0.00	985,238.65	985,238.65
	90 Day Rolling Delinquency Amount				0.00	0.00	648,108.30	648,108.30

	Available Funds Rate				5.7161%	3.5998%	4.0625%	4.0625%
	90 Day Delinquency Percentage							0.0000%


				Page 7 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Collateral Report for October 27, 2003 Distribution


	Collateral Report


COLLATERAL					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL
	Loan Count:
	*Original*				1456	24	1004	2484
	Prior				1,407	24	933	2,364
	Prefunding				-	-	-	-
	Scheduled Paid Offs				-	-	-	-
	Full Voluntary Prepayments				(19)	-	(21)	(40)
	Repurchases				-	-	-	-
	Liquidations				-	-	-	-
	Current				1,388	24	912	2,324

	*Principal Balance:*
	Original				300,000,050.39	12,819,481.59	270,001,404.18	582,820,936.16
	Prior				288,685,535.29	12,747,866.19	247,655,672.15	549,089,073.63
	Prefunding				-	-	-	-
	Scheduled Principal				(314,972.47)	(14,165.37)	(177,532.03)	(506,669.87)
	Partial and Full Voluntary Prepayments				(4,322,224.20)	5.89	(6,813,772.43)	(11,135,990.74)
	Repurchases				-	-	-	-
	Liquidations				-	-	-	-
	Current				284,048,338.62	12,733,706.71	240,664,367.69	537,446,413.02

PREFUNDING					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL
SPACE INTENTIONALLY LEFT BLANK


	Group 1 - Adj		Group 2 - Fixed
	Group 2 - Adj
Current Prin Balance by Groups (in millions of dollars)					Total Current Principal Balance (in millions of dollars)


				Page 8 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Collateral Report for October 27, 2003 Distribution


	Collateral Report


CHARACTERISTICS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Weighted Average Coupon Original				4.691365%	5.683081%	2.767003%	3.821686%
	Weighted Average Coupon Prior				6.803848%	5.872778%	5.899264%	6.372159%
	Weighted Average Coupon Current				6.790561%	5.683380%	5.658473%	6.254250%
	Weighted Average Months to Maturity Original				342	357	359	350
	Weighted Average Months to Maturity Prior				337	352	354	345
	Weighted Average Months to Maturity Current				336	351	353	344
	Weighted Avg Remaining Amortization Term Original				344	356	359	351
	Weighted Avg Remaining Amortization Term Prior				339	351	354	346
	Weighted Avg Remaining Amortization Term Current				338	350	353	345
	Weighted Average Seasoning Original				1.59	1.81	1.33	1.47
	Weighted Average Seasoning Prior				6.57	6.81	6.27	6.44
	Weighted Average Seasoning Current				7.56	7.81	7.27	7.44

Note: Original information refers to deal issue.


	Group 1 - Adj		Group 2 - Fixed
	Group 2 - Adj
WAC by Groups					Total WAC


WARAT by Groups					Total WARAT


Note: Dates correspond to distribution dates.
				Page 9 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Collateral Report for October 27, 2003 Distribution


	Collateral Report


ARM CHARACTERISTICS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Weighted Average Margin Original					2.907%	3.129%
	Weighted Average Margin Prior					2.908%	3.132%
	Weighted Average Margin Current					2.908%	3.122%
	Weighted Average Max Rate Original					10.683%	12.025%
	Weighted Average Max Rate Prior					10.683%	12.010%
	Weighted Average Max Rate Current					10.683%	11.991%
	Weighted Average Min Rate Original					5.683%	3.538%
	Weighted Average Min Rate Prior					5.683%	3.502%
	Weighted Average Min Rate Current					5.683%	3.481%
	Weighted Average Cap Up Original					1.000%	1.054%
	Weighted Average Cap Up Prior					1.000%	1.046%
	Weighted Average Cap Up Current					1.000%	1.045%
	Weighted Average Cap Down Original					1.000%	1.011%
	Weighted Average Cap Down Prior					1.000%	1.010%
	Weighted Average Cap Down Current					1.000%	1.010%

Note: Original information refers to deal issue.

SERVICING FEES / ADVANCES					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Current Servicing Fees				52,900.43	105.56	17,520.09	70,526.08
	Delinquent Servicing Fees				14,459.53	2,868.94	66,063.69	83,392.16
	TOTAL SERVICING FEES				67,359.96	2,974.50	83,583.78	153,918.24

	Total Servicing Fees				67,359.96	2,974.50	83,583.78	153,918.24
	Compensating Interest				14,597.51	0.00	17,589.71	32,187.22
	Delinquent Servicing Fees				(14,459.53)	(2,868.94)	(66,063.69)	(83,392.16)
	COLLECTED SERVICING FEES				67,497.94	105.56	35,109.80	102,713.30

	Current PPIS				14,597.51	0.00	17,589.71	32,187.22
	Current Net PPIS				29,195.02	0.00	35,179.42	64,374.44

	Total Advanced Principal For Current Payment Date				62,874.27	13,677.91	142,225.08	218,777.26
	Total Advanced Interest For Current Payment Date				357,556.85	55,339.08	860,295.38	1,273,191.31
	TOTAL ADVANCES FOR CURRENT PERIOD				420,431.12	69,016.99	1,002,520.46	1,491,968.57


ADDITIONAL COLLATERAL INFORMATION					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL
SPACE INTENTIONALLY LEFT BLANK


				Page 10 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Delinquency Report for October 27, 2003 Distribution


	Delinquency Report - Total


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			4,501,304.78	1,438,101.48	676,787.80	6,616,194.06
		% Balance			0.84%	0.27%	0.13%	1.23%
		# Loans			20	7	4	31
		% # Loans			0.86%	0.30%	0.17%	1.33%
FORECLOSURE		Balance		-	119,271.73	-	2,017,304.81	2,136,576.54
		% Balance		0.00%	0.02%	0.00%	0.38%	0.40%
		# Loans		-	1	-	9	10
		% # Loans		0.00%	0.04%	0.00%	0.39%	0.43%
BANKRUPTCY		Balance		533,361.07	-	-	-	533,361.07
		% Balance		0.10%	0.00%	0.00%	0.00%	0.10%
		# Loans		6	-	-	-	6
		% # Loans		0.26%	0.00%	0.00%	0.00%	0.26%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%

TOTAL		Balance		533,361.07	4,620,576.51	1,438,101.48	2,694,092.61	9,286,131.67
		% Balance		0.10%	0.86%	0.27%	0.50%	1.73%
		# Loans		6	21	7	13	47
		% # Loans		0.26%	0.90%	0.30%	0.56%	2.02%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 11 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Delinquency Report for October 27, 2003 Distribution


	Delinquency Report - Group 1 - Adj Group


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			1,933,907.81	334,698.42	567,582.33	2,836,188.56
		% Balance			0.80%	0.14%	0.24%	1.18%
		# Loans			7	2	3	12
		% # Loans			0.77%	0.22%	0.33%	1.32%
FORECLOSURE		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
BANKRUPTCY		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%

TOTAL		Balance		-	1,933,907.81	334,698.42	567,582.33	2,836,188.56
		% Balance		0.00%	0.80%	0.14%	0.24%	1.18%
		# Loans		-	7	2	3	12
		% # Loans		0.00%	0.77%	0.22%	0.33%	1.32%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 12 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Delinquency Report for October 27, 2003 Distribution


	Delinquency Report - Group 2 - Adj Group


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			-	-	-	-
		% Balance			0.00%	0.00%	0.00%	0.00%
		# Loans			-	-	-	-
		% # Loans			0.00%	0.00%	0.00%	0.00%
FORECLOSURE		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
BANKRUPTCY		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%

TOTAL		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 13 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Delinquency Report for October 27, 2003 Distribution


	Delinquency Report - Group 2 - Fixed Group


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			2,567,396.97	1,103,403.06	109,205.47	3,780,005.50
		% Balance			0.90%	0.39%	0.04%	1.33%
		# Loans			13	5	1	19
		% # Loans			0.94%	0.36%	0.07%	1.37%
FORECLOSURE		Balance		-	119,271.73	-	2,017,304.81	2,136,576.54
		% Balance		0.00%	0.04%	0.00%	0.71%	0.75%
		# Loans		-	1	-	9	10
		% # Loans		0.00%	0.07%	0.00%	0.65%	0.72%
BANKRUPTCY		Balance		533,361.07	-	-	-	533,361.07
		% Balance		0.19%	0.00%	0.00%	0.00%	0.19%
		# Loans		6	-	-	-	6
		% # Loans		0.43%	0.00%	0.00%	0.00%	0.43%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%

TOTAL		Balance		533,361.07	2,686,668.70	1,103,403.06	2,126,510.28	6,449,943.11
		% Balance		0.19%	0.95%	0.39%	0.75%	2.27%
		# Loans		6	14	5	10	35
		% # Loans		0.43%	1.01%	0.36%	0.72%	2.52%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 14 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	REO Report for October 27, 2003 Distribution


	REO Report - Mortgage Loans that Become REO During Current Distribution


SUMMARY				LOAN GROUP

Total Loan Count = 0				Loan Group 1 = Group 1 - Adj Group; REO Book Value = 000.00
Total Original Principal Balance = 000.00				Loan Group 2 = Group 2 - Adj Group; REO Book Value = 000.00
Total Current Balance = 000.00				Loan Group 3 = Group 2 - Fixed Group; REO Book Value = 000.00
REO Book Value = 000.00

REO Book Value reported corresponds to total REO loans, including loans that become REO during current distribution.

Loan Number		Original	Stated		Current	State &
&		Principal	Principal	Paid to	Note	LTV at	Original	Origination
Loan Group		Balance	Balance	Date	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK


				Page 15 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Prepayment Report for October 27, 2003 Distribution


	Prepayment Report - Voluntary Prepayments


VOLUNTARY PREPAYMENTS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	*Current*
	Number of Paid in Full Loans				19	-	21	40
	Number of Repurchased Loans				-	-	-	-
	Total Number of Loans Prepaid in Full				19	-	21	40

	Paid in Full Balance				4,300,344.09	-	6,789,926.59	11,090,270.68
	Repurchased Loans Balance				-	-	-	-
	Curtailments Amount				21,880.11	(5.89)	23,845.84	45,720.06
	Total Prepayment Amount				4,322,224.20	(5.89)	6,813,772.43	11,135,990.74

	*Cumulative*
	Number of Paid in Full Loans				67	-	92	159
	Number of Repurchased Loans				1	-	-	1
	Total Number of Loans Prepaid in Full				68	-	92	160

	Paid in Full Balance				13,403,763.13	-	28,164,085.46	41,567,848.59
	Repurchased Loans Balance				96,167.02	-	-	96,167.02
	Curtailments Amount				316,610.31	(4,147.98)	139,007.82	451,470.15
	Total Prepayment Amount				13,816,540.46	(4,147.98)	28,303,093.28	42,115,485.76


	Current Prin Balance of Repurchases Per Sec 3.18				0.00	0.00	0.00	0.00
	Cumulative Prin Balance of Repurchases Per Sec 3.18				0.00	0.00	0.00	0.00


Total Prepayments by Groups (in thousands of dollars)					Total Prepayments (in thousands of dollars)


				Page 16 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Prepayment Report for October 27, 2003 Distribution


	Prepayment Report - Voluntary Prepayments


VOLUNTARY PREPAYMENT RATES					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	SMM				1.50%	0.00%	2.75%	2.03%
	3 Months Avg SMM				1.11%	0.00%	2.44%	1.69%
	12 Months Avg SMM
	Avg SMM Since Cut-off				0.67%	0.00%	1.57%	1.07%

	CPR				16.58%	0.00%	28.47%	21.82%
	3 Months Avg CPR				12.58%	0.00%	25.69%	18.53%
	12 Months Avg CPR
	Avg CPR Since Cut-off				7.80%	0.00%	17.34%	12.11%

	PSA				1096.46%	0.00%	1957.04%	1466.74%
	3 Months Avg PSA Approximation				958.05%	0.00%	2046.07%	1438.17%
	12 Months Avg PSA Approximation
	Avg PSA Since Cut-off Approximation				852.81%	0.00%	2012.99%	1358.62%



	Group 1 - Adj		Group 2 - Fixed
	Group 2 - Adj


CPR by Groups					Total CPR


PSA by Groups					Total PSA


				Page 17 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Prepayment Report for October 27, 2003 Distribution


	Prepayment Report - Voluntary Prepayments

	Group 1 - Adj		Group 2 - Fixed
	Group 2 - Adj

CPR Avg since Cut-Off by Groups					Total CPR Avg since Cut-Off


PSA Avg since Cut-Off by Groups					Total PSA Avg since Cut-Off


PREPAYMENT CALCULATION METHODOLOGY
Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases)/(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 24				© COPYRIGHT 2003 Deutsche Bank


	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Prepayment Detail Report for October 27, 2003 Distribution


	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution


SUMMARY						LOAN GROUP

Total Loan Count = 40						Loan Group 1 = Group 1 - Adj Group
Total Original Principal Balance = 11,156,839.00						Loan Group 2 = Group 2 - Adj Group
Total Prepayment Amount = 11,090,270.68						Loan Group 3 = Group 2 - Fixed Group


Loan Number			Original			Current	State &	Type Prepayment
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Original Term	Date

1100365334 1			300,000.00	300,000.00	Sep-24-03	5.000%	CA - 80.00%	Paid Off - 360	Mar-04-03
1100366009 1			174,700.00	173,066.11	Sep-26-03	4.375%	FL - 89.98%	Paid Off - 360	Feb-12-03
1100367473 1			280,000.00	280,000.00	Sep-08-03	5.375%	FL - 65.89%	Paid Off - 360	Mar-24-03
1100369363 1			649,000.00	644,188.08	Sep-18-03	5.750%	CA - 76.36%	Paid Off - 360	Feb-21-03
1100370015 1			156,750.00	155,940.51	Sep-22-03	7.625%	MI - 95.00%	Paid Off - 360	Mar-28-03
1100370022 1			206,500.00	204,820.05	Sep-24-03	5.250%	FL - 50.00%	Paid Off - 360	Feb-27-03
1100370053 1			375,250.00	373,007.09	Sep-08-03	6.880%	CA - 95.00%	Paid Off - 360	Mar-10-03
1100370072 1			512,973.00	510,120.52	Sep-18-03	7.250%	CA - 90.00%	Paid Off - 360	Mar-10-03
1100370300 1			595,000.00	595,000.00	Sep-04-03	4.125%	CA - 70.00%	Paid Off - 360	Feb-28-03
1100370469 1			133,500.00	132,225.57	Sep-19-03	8.000%	CA - 83.44%	Paid Off - 360	Feb-28-03
1100370529 1			413,000.00	413,000.00	Sep-04-03	4.875%	VA - 68.27%	Paid Off - 360	Mar-24-03
1100371557 1			540,000.00	536,526.78	Sep-26-03	6.500%	WA - 75.00%	Paid Off - 360	Mar-17-03
1100371997 1			412,000.00	412,000.00	Sep-22-03	6.125%	CA - 87.66%	Paid Off - 360	Mar-07-03
1100373863 1			200,000.00	197,930.06	Sep-15-03	5.125%	MI - 80.00%	Paid Off - 360	Mar-28-03
1103017391 1			130,500.00	129,909.78	Sep-05-03	7.500%	CA - 90.00%	Paid Off - 360	Mar-19-03
1103031603 1			195,000.00	193,675.01	Sep-12-03	5.750%	CA - 78.00%	Paid Off - 360	Mar-20-03
2500024336 1			407,000.00	407,000.00	Sep-02-03	5.750%	CA - 79.97%	Paid Off - 360	Mar-11-03
2500024494 1			287,900.00	286,509.31	Sep-19-03	6.375%	CA - 90.00%	Paid Off - 360	Mar-26-03
2500024598 1			196,000.00	195,091.30	Sep-22-03	6.375%	CA - 80.00%	Paid Off - 360	Feb-27-03
2500024861 1			404,000.00	401,075.49	Sep-08-03	4.375%	CA - 80.00%	Paid Off - 360	Feb-28-03
2500024870 1			250,000.00	248,840.93	Sep-10-03	6.375%	CA - 69.45%	Paid Off - 360	Mar-03-03
1100357635 3			108,800.00	108,065.76	Sep-30-03	9.250%	RI - 80.00%	Paid Off - 360	Oct-24-02
1100360899 3			152,884.00	151,672.51	Sep-29-03	7.875%	NV - 95.00%	Paid Off - 360	Feb-25-03
1100367747 3			432,000.00	429,154.13	Sep-04-03	6.375%	CA - 44.31%	Paid Off - 360	Feb-28-03
1100368502 3			380,000.00	378,281.22	Sep-11-03	7.500%	CA - 80.00%	Paid Off - 360	Mar-11-03
1100369310 3			217,000.00	215,782.80	Sep-15-03	8.500%	NH - 70.00%	Paid Off - 360	Mar-21-03
1100369518 3			76,342.00	75,864.65	Sep-11-03	7.875%	FL - 95.00%	Paid Off - 360	Feb-07-03
1100369688 3			340,000.00	337,178.80	Sep-30-03	5.875%	FL - 79.63%	Paid Off - 360	Feb-13-03
1100369989 3			110,000.00	109,493.64	Sep-16-03	8.875%	AZ - 77.47%	Paid Off - 360	Mar-05-03
1100370089 3			232,740.00	231,919.40	Sep-05-03	9.500%	FL - 95.00%	Paid Off - 360	Mar-10-03
1100370435 3			230,350.00	229,344.20	Sep-29-03	7.750%	CA - 94.99%	Paid Off - 360	Mar-11-03
1100371677 3			141,600.00	140,851.58	Sep-08-03	7.875%	CA - 80.00%	Paid Off - 360	Feb-19-03
1100371710 3			498,000.00	483,067.34	Sep-04-03	5.875%	CA - 69.95%	Paid Off - 180	Feb-28-03
1100373815 3			145,600.00	144,969.29	Sep-11-03	8.500%	FL - 72.08%	Paid Off - 360	Mar-12-03
1103021081 3			128,000.00	126,624.66	Sep-23-03	7.625%	CA - 55.90%	Paid Off - 360	Mar-12-03
1103024272 3			106,500.00	105,878.10	Sep-09-03	7.000%	CA - 71.96%	Paid Off - 360	Feb-28-03
1103024625 3			185,500.00	184,416.79	Sep-19-03	7.000%	NV - 70.00%	Paid Off - 360	Feb-20-03
1103027155 3			178,500.00	177,405.94	Sep-30-03	7.250%	CA - 70.00%	Paid Off - 360	Feb-19-03
2500024032 3			600,000.00	596,701.15	Sep-08-03	6.500%	VA - 56.98%	Paid Off - 360	Feb-14-03
2500025114 3			73,950.00	73,672.13	Sep-02-03	7.500%	FL - 85.00%	Paid Off - 360	Mar-17-03


					Page 19 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Realized Loss Report for October 27, 2003 Distribution


	Realized Loss Report - Collateral


COLLATERAL REALIZED LOSSES					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	*Current*
	Number of Loans Liquidated				-	-	-	-
	Collateral Realized Loss/(Gain) Amount				-	-	-	-
	Net Liquidation Proceeds				-	-	-	-

	*Cumulative*
	Number of Loans Liquidated				-	-	-	-
	Collateral Realized Loss/(Gain) Amount				-	-	-	-
	Net Liquidation Proceeds				-	-	-	-

	Note: Collateral Realized Loss Amount may include adjustments to loans liquidated in prior periods.


	Cumulative Loss Percentage For Related Payment Date				0.0000%	0.0000%	0.0000%	0.0000%


	Group 1 - Adj		Group 2 - Fixed				3 Months Moving Average
	Group 2 - Adj

Collateral Loss Severity Approximation by Groups					Collateral Loss Severity Approximation


				Page 20 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Realized Loss Report for October 27, 2003 Distribution


	Realized Loss Report - Collateral


DEFAULT SPEEDS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

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

	CDR				0.00%	0.00%	0.00%	0.00%
	3 Months Avg CDR				0.00%	0.00%	0.00%	0.00%
	12 Months Avg CDR
	Avg CDR Since Cut-off				0.00%	0.00%	0.00%	0.00%

	SDA				0.00%	0.00%	0.00%	0.00%
	3 Months Avg SDA Approximation				0.00%	0.00%	0.00%	0.00%
	12 Months Avg SDA Approximation
	Avg SDA Since Cut-off Approximation				0.00%	0.00%	0.00%	0.00%

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

	Group 1 - Adj		Group 2 - Fixed
	Group 2 - Adj
CDR by Groups					Total CDR


SDA by Groups					Total SDA


				Page 21 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Realized Loss Report for October 27, 2003 Distribution


	Realized Loss Report - Collateral

	Group 1 - Adj		Group 2 - Fixed
	Group 2 - Adj

CDR Avg since Cut-Off by Groups					Total CDR Avg since Cut-Off


SDA Avg since Cut-Off by Groups					Total SDA Avg since Cut-Off


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: 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 22 of 24				© COPYRIGHT 2003 Deutsche Bank


	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Realized Loss Detail Report for October 27, 2003 Distribution


	Realized Loss Detail Report - Loans Liquidated During Current Distribution


SUMMARY						LOAN GROUP

Total Loan Count = 0						Loan Group 1 = Group 1 - Adj Group
Total Original Principal Balance = 0.00						Loan Group 2 = Group 2 - Adj Group
Total Prior Principal Balance = 0.00						Loan Group 3 = Group 2 - Fixed Group
Total Realized Loss Amount = 0.00
Total Net Liquidation Proceeds = 0.00
Note: Total Realized Loss Amount may include adjustments to loans liquidated in prior periods.

Loan Number			Original	Prior		Current	State &
&		Loan	Principal	Principal	Realized	Note	LTV at	Original	Origination
Loan Group		Status	Balance	Balance	Loss/(Gain)	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK


					Page 23 of 24				© COPYRIGHT 2003 Deutsche Bank
	Impac CMB Trust 2003-4
	Mortgage Pass-Through Certificates
	Series 2003-4
	Triggers, Adj. Rate Cert. and Miscellaneous Report for October 27, 2003 Distribution


	Triggers, Adj. Rate Cert. and Miscellaneous Report


TRIGGER EVENTS					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL
SPACE INTENTIONALLY LEFT BLANK


ADJUSTABLE RATE CERTIFICATE INFORMATION					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL

	Current Periods Basis Risk Shortfall Carry Forward Amt				0.00	0.00	695.55	695.55
	Cumulative Basis Risk Shortfall Carry Forward Amt				0.00	0.00	0.00	0.00

	Current Periods LIBOR Rate							1.1200%


ADDITIONAL INFORMATION					GROUP 2 - FIXED	GROUP 2 - ADJ	GROUP 1 - ADJ	TOTAL


	Current Periods Net Mortgage Rate				6.4658%	5.3967%	5.1043%	5.8269%

	Total Derivative Payments				0.00	19,902.07	129,688.85	149,590.92
	333304 - 472661D				0.00	0.00	33,701.20	33,701.20
	333295 - 472655D				0.00	0.00	52,033.24	52,033.24
	333299 - 472667D				0.00	0.00	9,166.18	9,166.18
	333287 - 472439D				0.00	0.00	34,788.23	34,788.23
	333305 - 472659D				0.00	6,013.94	0.00	6,013.94
	333308 - 472651D				0.00	13,888.13	0.00	13,888.13


				Page 24 of 24				© COPYRIGHT 2003 Deutsche Bank

IMH ASSETS CORP IMPAC CMB TRUST SERIES 2003-4 8-K