UNITED STATES 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): ~~November~~December 2627, 2004 (Date of earliest event reported) Indymac MBS Inc (as Depositor under the Pooling and Servicing Agreement, dated as June 1, 2004, providing for the issuance of IndyMAc INDX Mortgage Loan Trust 2004-AR4 Mortgage Pass-Through Certificates, Series 2004-AR4) (Exact name of registrant as specified in charter) DELAWARE (State or Other Jurisdiction of Incorporation) 333-116470-05 95-4791925 (Commission File Number) (I.R.S. Employer Identification No.) 155 NORTH LAKE AVENUE PASADENA, CALIFORNIA 91101 (Address of principal executive offices) (Zip Code) Registrant's Telephone Number, Including Area Code: (800) 669-2300 (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12(b) under the Exchange Act (17 CFR 240.14a-12(b)) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Item 8.01 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 9.01 Financial Statements and Exhibits (c) Exhibits: Exhibit No. Description 99.1 Monthly Remittance Statement to the Certificateholders dated as of ~~November~~December 2627, 2004. Signatures 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, in its capacity as Trustee under the Pooling and Servicing Agreement on behalf of Indymac MBS Inc, Registrant Date: ~~Nov~~Dec 2627, 2004 By: /s/ Katherine M. Wannenmacher Katherine M. Wannenmacher Vice President EXHIBIT INDEX DOCUMENT 99.1 Monthly Remittance Statement to the Certificateholders dated as of ~~November~~December 2627, 2004.

	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	November 26, 2004 Distribution
	December 27, 2004 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				2120
			11.	Realized Loss Detail Report				2423
			12.	Triggers, Adj. Rate Cert. and Miscellaneous Report				2524
			13.	Other Related Information				2625
			14.	Additional Certificate Report				2726
				Total Number of Pages				2726
			CONTACTS
				Administrator: Brent Hoyler
				Direct Phone Number: (714)247-6322
				Address: Deutsche Bank
				1761 E. St. Andrew Place, Santa Ana, CA 92705
				Web Site: https://www.tss.db.com/invr
				Factor Information: (800) 735-7777
				Main Phone Number: (714) 247-6000
ISSUANCE INFORMATION
	Seller:		IndyMac Bank					Cut-Off Date: June 1, 2004
	Certificate Insurer(s):							Closing Date: June 29, 2004
								First Payment Date: July 26, 2004
	Servicer(s):		IndyMac Bank Master Servicer
								Distribution Date: November 26, 2004
								Distribution Date: December 27, 2004
	Underwriter(s):		Lehman Brothers Underwriter					Record Date: ~~October~~November 2930, 2004
						Page 1 of 27					© COPYRIGHT 2004 Deutsche Bank
						Page 1 of 26					© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	REMIC I Series 2004-AR4
	Certificate Payment Report for November 26, 2004 Distribution
	Certificate Payment Report for December 27, 2004 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		332,882,000.00			~~308~~298,~~032~~102,~~597~~742.4305	1,~~230~~188,~~779~~285.6581	98,~~929~~833,~~855~~408.3860	1110,~~160~~021,~~635~~694.0341	-	-	~~298~~289,~~102~~269,~~742~~333.0545
2-A		183,084,000.00			~~175~~172,~~703~~493,~~731~~614.0052	~~762~~749,~~618~~441.13	32,~~210~~998,~~116~~514.4988	3,~~972~~747,~~734~~956.6201	-	-	~~172~~169,~~493~~495,~~614~~099.5264
3-A		213,509,000.00			~~205~~203,~~558~~181,~~650~~185.9621	~~845~~835,~~706~~613.5689	23,~~377~~055,~~465~~985.7553	3,~~223~~891,~~172~~599.3142	-	-	~~203~~200,~~181~~125,~~185~~199.2168
A-R		100.00			-	~~0.00~~-	-	~~0.00~~-	-	-	-
B-1		30,591,000.00			30,~~419~~402,~~564~~506.5125	125,~~222~~041.3326	1718,~~058~~859.2657	~~142~~143,~~280~~900.5983	-	-	30,~~402~~383,~~506~~646.2568
B-2		8,628,000.00			8,~~579~~574,~~647~~836.6952	35,~~318~~267.1810	45,~~811~~319.1822	40,~~129~~586.3632	-	-	8,~~574~~569,~~836~~517.5229
B-3		4,706,000.00			4,~~679~~677,~~627~~002.0386	19,~~263~~235.7186	2,~~624~~901.1828	2122,~~887~~137.8914	-	-	4,~~677~~674,~~002~~101.8657
B-4		5,098,000.00			5,~~069~~066,~~430~~587.2246	20,~~868~~838.3417	23,~~842~~142.7695	23,~~711~~981.1012	-	-	5,~~066~~063,~~587~~444.4650
B-5		3,530,000.00			3,~~510~~508,~~217~~249.4706	14,~~449~~428.8394	12,~~968~~176.4127	16,~~418~~605.2421	-	-	3,~~508~~506,~~249~~072.0679
B-6		2,353,358.00			2,~~340~~338,~~169~~857.5223	9,~~633~~619.3239	1,~~312~~450.2986	1011,~~945~~070.6125	-	-	2,~~338~~337,~~857~~406.2337
P		100.00			100.00	2811,~~721~~143.3229	-	2811,~~721~~143.3229	-	-	100.00
Total		784,381,558.00			~~743~~728,~~893~~345,~~735~~681.8414	3,~~092~~008,~~581~~914.3885	1514,~~548~~921,~~054~~759.7016	1817,~~640~~930,~~636~~674.0701	-	-	~~728~~713,~~345~~423,~~681~~921.1498
	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	0910/3031/04	1011/3130/04		A-30/360	45660NQ24	332,882,000.00	~~925~~895.~~350717~~520761	3.~~697345~~569691	2926.~~829956~~536156	3330.~~527301~~105847	~~895~~868.~~520761~~984606
2-A	0910/3031/04	1011/3130/04		A-30/360	45660NQ32	183,084,000.00	~~959~~942.~~689165~~155593	4.~~165400~~093428	1716.~~533572~~377810	2120.~~698972~~471237	~~942~~925.~~155593~~777783
3-A	0910/3031/04	1011/3130/04		A-30/360	45660NQ40	213,509,000.00	~~962~~951.~~763401~~628199	3.~~960988~~913717	1114.~~135202~~313146	1518.~~096189~~226864	~~951~~937.~~628199~~315053
A-R				A-30/360	45660NQ57	100.00	-	~~0.032000~~-	-	~~0.032000~~-	-
B-1	0910/3031/04	1011/3130/04		A-30/360	45660NQ65	30,591,000.00	~~994~~993.~~395885~~838261	4.~~093437~~087518	0.~~557624~~616507	4.~~651061~~704025	993.~~838261~~221754
B-2	0910/3031/04	1011/3130/04		A-30/360	45660NQ73	8,628,000.00	~~994~~993.~~395885~~838261	4.~~093438~~087517	0.~~557624~~616507	4.~~651061~~704025	993.~~838261~~221754
B-3	0910/3031/04	1011/3130/04		A-30/360	45660NQ81	4,706,000.00	~~994~~993.~~395885~~838261	4.~~093436~~087518	0.~~557624~~616507	4.~~651060~~704025	993.~~838261~~221754
B-4	0910/3031/04	1011/3130/04		A-30/360	45660NQ99	5,098,000.00	~~994~~993.~~395885~~838261	4.~~093437~~087519	0.~~557624~~616507	4.~~651060~~704026	993.~~838261~~221754
B-5	0910/3031/04	1011/3130/04		A-30/360	45660NR23	3,530,000.00	~~994~~993.~~395885~~838261	4.~~093436~~087518	0.~~557624~~616507	4.~~651060~~704026	993.~~838261~~221754
B-6	0910/3031/04	1011/3130/04		A-30/360	45660NR31	2,353,358.00	~~994~~993.~~395889~~838265	4.~~093436~~087517	0.~~557624~~616506	4.~~651059~~704022	993.~~838265~~221759
P	0910/3031/04	1011/3130/04		F-30/360	IN04A401P	100.00	1,000.000000	~~287~~111,~~213~~432.~~200000~~900000	-	~~287~~111,~~213~~432.~~200000~~900000	1,000.000000
							Page 2 of 27				© COPYRIGHT 2004 Deutsche Bank
							Page 2 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	REMIC I Series 2004-AR4
	Certificate Payment Report for November 26, 2004 Distribution
	Certificate Payment Report for December 27, 2004 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	332,882,000.00		67,~~481~~669,~~605~~891.2506		3442,~~241~~975,~~977~~851.0759	~~537~~636,~~280~~814.8896	3443,~~779~~612,~~257~~666.9555	4151,~~260~~282,~~863~~557.2061	-	-	~~298~~289,~~102~~269,~~742~~333.0545
2-A	183,084,000.00		34,~~917~~666,~~438~~879.7992		1013,~~234~~164,~~464~~078.0964	~~355~~424,~~921~~821.4072	1013,~~590~~588,~~385~~900.4836	1418,~~507~~255,~~824~~780.2728	-	-	~~172~~169,~~493~~495,~~614~~099.5264
3-A	213,509,000.00		45,~~320~~156,~~957~~571.7059		1013,~~026~~023,~~017~~179.5929	~~301~~360,~~797~~621.2002	1013,~~327~~383,~~814~~800.7931	1418,~~648~~540,~~772~~371.4890	-	-	~~203~~200,~~181~~125,~~185~~199.2168
A-R	100.00		0.00		-	100.00	100.00	100.00	-	-	-
B-1	30,591,000.00		~~630~~755,~~113~~155.8107		~~137~~145,~~343~~951.8566	5161,~~149~~401.9166	~~188~~207,~~493~~353.7532	~~818~~962,~~607~~508.5639	-	-	30,~~402~~383,~~506~~646.2568
B-2	8,628,000.00		~~177~~212,~~719~~986.6676		3841,~~736~~164.9775	1417,~~426~~317.5195	5358,~~163~~482.4871	~~230~~271,~~883~~469.1447	-	-	8,~~574~~569,~~836~~517.5229
B-3	4,706,000.00		96116,~~934~~170.2511		2122,~~128~~452.4463	79,~~868~~445.7079	2831,~~997~~898.1443	~~125~~148,~~931~~068.3954	-	-	4,~~677~~674,~~002~~101.8657
B-4	5,098,000.00		~~105~~125,~~008~~846.6683		2224,~~888~~322.4089	810,~~524~~232.1561	3134,~~412~~555.5450	~~136~~160,~~421~~402.2033	-	-	5,~~066~~063,~~587~~444.4650
B-5	3,530,000.00		7287,~~710~~139.9892		1516,~~848~~841.5886	57,~~902~~085.3635	2123,~~750~~927.9421	94111,~~461~~067.9213	-	-	3,~~508~~506,~~249~~072.0679
B-6	2,353,358.00		4858,~~474~~093.4988		1011,~~565~~228.8201	34,~~934~~723.9561	1415,~~500~~951.7763	6274,~~975~~045.2651	-	-	2,~~338~~337,~~857~~406.2337
P	100.00		7384,~~248~~391.2958		-	-	-	7384,~~248~~391.2958	-	-	100.00
Total	784,381,558.00		1518,~~924~~933,~~211~~126.8872		5469,~~748~~425,~~970~~071.8034	1,~~286~~532,~~906~~564.0568	5670,~~035~~957,~~876~~636.8502	7189,~~960~~890,~~088~~762.7374	-	-	~~728~~713,~~345~~423,~~681~~921.1498
	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	4.~~79474~~78339%	~~308~~298,~~032~~102,~~597~~742.4305			1,~~230~~188,~~779~~285.6581	-	-	-	1,~~230~~188,~~779~~285.6581	1,~~230~~188,~~779~~285.6581	-
2-A	5.~~20844~~21370%	~~175~~172,~~703~~493,~~731~~614.0052			~~762~~749,~~618~~441.13	-	-	-	~~762~~749,~~618~~441.13	~~762~~749,~~618~~441.13	-
3-A	4.~~93702~~93518%	~~205~~203,~~558~~181,~~650~~185.9621			~~845~~835,~~706~~613.5689	-	-	-	~~845~~835,~~706~~613.5689	~~845~~835,~~706~~613.5689	-
A-R		-			-	-	-	-	-	~~0.00~~-	-
B-1	4.~~93981~~93543%	30,~~419~~402,~~564~~506.5125			125,~~222~~041.3326	-	-	-	125,~~222~~041.3326	125,~~222~~041.3326	-
B-2	4.~~93981~~93543%	8,~~579~~574,~~647~~836.6952			35,~~318~~267.1810	-	-	-	35,~~318~~267.1810	35,~~318~~267.1810	-
B-3	4.~~93981~~93543%	4,~~679~~677,~~627~~002.0386			19,~~263~~235.7186	-	-	-	19,~~263~~235.7186	19,~~263~~235.7186	-
B-4	4.~~93981~~93543%	5,~~069~~066,~~430~~587.2246			20,~~868~~838.3417	-	-	-	20,~~868~~838.3417	20,~~868~~838.3417	-
B-5	4.~~93981~~93543%	3,~~510~~508,~~217~~249.4706			14,~~449~~428.8394	-	-	-	14,~~449~~428.8394	14,~~449~~428.8394	-
B-6	4.~~93981~~93543%	2,~~340~~338,~~169~~857.5223			9,~~633~~619.3239	-	-	-	9,~~633~~619.3239	9,~~633~~619.3239	-
P		100.00			-	-	-	-	-	2811,~~721~~143.3229	-
Total		~~743~~728,~~893~~345,~~735~~681.8414			32,~~063~~997,~~860~~771.0656	-	-	-	32,~~063~~997,~~860~~771.0656	3,~~092~~008,~~581~~914.3885	-
							Page 3 of 27				© COPYRIGHT 2004 Deutsche Bank
							Page 3 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Collection Account Report for November 26, 2004 Distribution
	Collection Account Report for December 27, 2004 Distribution
	Collection Account Report
SUMMARY					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Principal Collections				23,~~382~~060,~~040~~631.2739	3,~~215~~019,~~465~~404.3288	98,~~950~~841,~~549~~722.1190	1514,~~548~~921,~~054~~759.7017
	Principal Withdrawals				0.00	0.00	0.00	0.00
	Principal Other Accounts				0.00	0.00	0.00	0.00
	TOTAL PRINCIPAL				23,~~382~~060,~~040~~631.2739	3,~~215~~019,~~465~~404.3288	98,~~950~~841,~~549~~722.1190	1514,~~548~~921,~~054~~759.7017
	Interest Collections				~~925~~914,~~381~~973.1906	~~836~~823,~~813~~059.2542	1,~~359~~311,~~244~~729.1724	3,~~121~~049,~~438~~761.6172
	Interest Withdrawals				0.00	0.00	0.00	0.00
	Interest Other Accounts				0.00	0.00	2811,~~721~~143.3229	2811,~~721~~143.3229
	Interest Fees				(13,~~635~~362.0599)	(1514,~~057~~443.1181)	(2824,~~886~~183.3936)	(5751,~~578~~990.5516)
	TOTAL INTEREST				~~911~~901,~~746~~610.1407	~~821~~808,~~756~~615.1461	1,~~359~~298,~~079~~689.1017	3,~~092~~008,~~581~~914.3885
	TOTAL AVAILABLE FUNDS TO BONDHOLDERS				3,~~293~~962,~~786~~241.4146	43,~~037~~828,~~221~~020.4649	1110,~~309~~140,~~628~~412.2107	1817,~~640~~930,~~636~~674.0802
	Interest Payable to Bondholders				~~911~~901,~~746~~610.1407	~~821~~808,~~756~~615.1461	1,~~359~~298,~~079~~689.1017	3,~~092~~008,~~581~~914.3885
PRINCIPAL - COLLECTIONS					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Scheduled Principal				63,~~156~~469.0869	74,~~325~~340.0656	~~109~~107,~~201~~848.0938	~~246~~245,~~682~~658.2363
	Curtailments				3732,~~717~~761.4970	3629,~~663~~975.2480	~~135~~99,~~957~~723.9160	~~210~~162,~~338~~461.6410
	Prepayments in Full				2,~~281~~964,~~166~~400.7000	32,~~104~~703,~~477~~968.0252	98,~~538~~634,~~124~~150.3092	14,~~923~~302,~~768~~519.0244
	Repurchases/Substitutions				0.00	0211,120.00	~~167,265~~0.8100	~~167~~211,~~265~~120.8100
	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
	LESS: Delinquent Principal				(5251,~~826~~094.8592)	(55,~~586~~362.1595)	(8591,~~630~~165.6102)	(~~194~~197,~~043~~622.6189)
	LESS: Realized Losses				0.00	0.00	0.00	0.00
	PLUS: Recoveries				0.00	0.00	0.00	0.00
	PLUS: Substitution Shortfall Principal				0.00	0.00	0.00	0.00
	PLUS: Principal Loan Adjustments				0.00	0.00	0.00	0.00
	PLUS: Principal Advanced				5251,~~826~~094.8592	55,~~586~~362.1595	8591,~~630~~165.6102	~~194~~197,~~043~~622.6189
	TOTAL PRINCIPAL				23,~~382~~060,~~040~~631.2739	3,~~215~~019,~~465~~404.3288	98,~~950~~841,~~549~~722.1190	1514,~~548~~921,~~054~~759.7017
				Page 4 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 4 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Collection Account Report for November 26, 2004 Distribution
	Collection Account Report for December 27, 2004 Distribution
	Collection Account Report
PRINCIPAL - WITHDRAWALS					GROUP 3	GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
PRINCIPAL - OTHER ACCOUNTS					GROUP 3	GROUP 2	GROUP 1	TOTAL
	TOTAL PRINCIPAL OTHER ACCOUNTS				0.00	0.00	0.00	0.00
INTEREST - COLLECTIONS					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Scheduled Interest				~~981~~971,~~922~~032.7435	~~881~~866,~~710~~649.2886	1,~~434~~389,~~852~~830.4945	3,~~298~~227,~~485~~512.5166
	Repurchases/Substitutions				0.00	0901.0066	~~940~~0.8700	~~940~~901.8766
	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
	LESS: Prepayment Interest Shortfalls				(~~992~~4,432.6490)	(13,~~554~~747.1325)	(35,~~777~~589.2101)	(613,~~323~~769.9816)
	LESS: Delinquent Interest				(~~805~~801,~~882~~102.5024)	(~~673~~667,~~085~~235.3494)	(1,~~059~~078,~~926~~627.1426)	(2,~~538~~546,~~893~~965.9844)
	LESS: Interest Realized Losses				0.00	0.00	0.00	0.00
	PLUS: Compensating Interest				~~992~~4,432.6490	13,~~554~~747.1325	35,~~777~~589.2101	613,~~323~~769.9816
	LESS: Civil Relief Act Shorfalls				0.00	0.00	0.00	0.00
	PLUS: Substiution Shortfall Interest				0.00	0.00	0.00	0.00
	PLUS: Interest Loan Adjustments				0.00	0.00	0.00	0.00
	LESS: Excess, Special Hazard, Fraud, & Bankruptcy Interest Losses				0.00	0.00	0.00	0.00
	Interest Advanced				~~749~~745,~~340~~042.95	~~628~~622,~~188~~743.3184	~~983~~1,~~376~~000,526.9505	2,~~360~~368,~~906~~312.2184
	TOTAL INTEREST				~~925~~914,~~381~~973.1906	~~836~~823,~~813~~059.2542	1,~~359~~311,~~244~~729.1724	3,~~121~~049,~~438~~761.6172
				Page 5 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 5 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Collection Account Report for November 26, 2004 Distribution
	Collection Account Report for December 27, 2004 Distribution
	Collection Account Report
INTEREST - WITHDRAWALS					GROUP 3	GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
INTEREST - OTHER ACCOUNTS					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Prepayment Penalties				0.00	0.00	2811,~~721~~143.3229	2811,~~721~~143.3229
	TOTAL INTEREST OTHER ACCOUNTS				0.00	0.00	2811,~~721~~143.3229	2811,~~721~~143.3229
INTEREST - FEES					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Current Servicing Fees				12,~~711~~449.6754	1413,~~268~~668.2434	2722,~~499~~837.0851	5448,~~478~~955.9939
	Trustee Fees				~~923~~913.3845	~~788~~775.8747	1,~~387~~345.3185	3,~~099~~034.5677
	PMI Fees				0.00	0.00	0.00	0.00
	TOTAL INTEREST FEES				13,~~635~~362.0599	1514,~~057~~443.1181	2824,~~886~~183.3936	5751,~~578~~990.5516
				Page 6 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 6 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Credit Enhancement Report for November 26, 2004 Distribution
	Credit Enhancement Report for December 27, 2004 Distribution
	Credit Enhancement Report
ACCOUNTS					GROUP 3	GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
INSURANCE					GROUP 3	GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
STRUCTURAL FEATURES					GROUP 3	GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
				Page 7 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 7 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Collateral Report for November 26, 2004 Distribution
	Collateral Report for December 27, 2004 Distribution
	Collateral Report
COLLATERAL					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Loan Count:
	Original				468	989	1343	2800
	Prior				~~452~~448	~~957~~943	1,~~258~~229	2,~~667~~620
	Prefunding				-	-	-	-
	Scheduled Paid Offs				-	-	-	-
	Full Voluntary Prepayments				(45)	(14)	(2824)	(4643)
	Repurchases				-	-(1)	~~(1)~~-	(1)
	Liquidations				-	-	-	-
	Current				~~448~~443	~~943~~928	1,~~229~~205	2,~~620~~576
	Principal Balance:
	Original				229,579,204.05	196,864,609.76	357,937,644.19	784,381,458.00
	Prior				~~221~~219,~~610~~228,~~325~~285.6033	~~189~~186,~~328~~113,~~857~~391.3098	~~332~~323,~~954~~003,~~452~~903.9281	~~743~~728,~~893~~345,~~635~~581.8212
	Prefunding				-	-	-	-
	Scheduled Principal				(63,~~156~~469.0869)	(74,~~325~~340.0656)	(~~109~~107,~~201~~848.0938)	(~~246~~245,~~682~~658.2363)
	Partial and Full Voluntary Prepayments				(2,~~318~~997,~~884~~161.1970)	(32,~~141~~733,~~140~~944.2632)	(98,~~674~~733,~~082~~874.2152)	(1514,~~134~~464,~~106~~980.6654)
	Repurchases				-	-(211,120.00)	~~(167,265.81)~~-	(~~167~~211,~~265~~120.8100)
	Liquidations				-	-	-	-
	Current				~~219~~216,~~228~~167,~~285~~653.3394	~~186~~183,~~113~~093,~~391~~987.9810	~~323~~314,~~003~~162,~~903~~180.8191	~~728~~713,~~345~~423,~~581~~821.1295
PREFUNDING					GROUP 3	GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
	Group 1		Group 3
	Group 2
Current Prin Balance by Groups (in millions of dollars)					Total Current Principal Balance (in millions of dollars)
				Page 8 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 8 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Collateral Report for November 26, 2004 Distribution
	Collateral Report for December 27, 2004 Distribution
	Collateral Report
CHARACTERISTICS					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Weighted Average Coupon Original				5.333255%	5.601454%	5.202674%	5.340980%
	Weighted Average Coupon Prior				5.~~320267~~317023%	5.~~598099~~588437%	5.~~191651~~174738%	5.~~332509~~322416%
	Weighted Average Coupon Current				5.~~317023~~315185%	5.~~588437~~593696%	5.~~174738~~163394%	5.~~322416~~319037%
	Weighted Average Months to Maturity Original				356	359	359	358
	Weighted Average Months to Maturity Prior				~~353~~352	~~356~~355	~~356~~355	~~355~~354
	Weighted Average Months to Maturity Current				~~352~~351	~~355~~354	~~355~~354	~~354~~353
	Weighted Avg Remaining Amortization Term Original				356	358	358	357
	Weighted Avg Remaining Amortization Term Prior				~~353~~352	~~355~~354	~~355~~354	~~354~~353
	Weighted Avg Remaining Amortization Term Current				~~352~~351	~~354~~353	~~354~~353	~~353~~352
	Weighted Average Seasoning Original				2.15	1.82	1.92	1.96
	Weighted Average Seasoning Prior				56.1206	45.8280	45.9088	45.9592
	Weighted Average Seasoning Current				67.0608	56.8081	56.8889	56.92
Note: Original information refers to deal issue.
	Group 1		Group 3
	Group 2
WAC by Groups					Total WAC
WARAT by Groups					Total WARAT
Note: Dates correspond to distribution dates.
				Page 9 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 9 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Collateral Report for November 26, 2004 Distribution
	Collateral Report for December 27, 2004 Distribution
	Collateral Report
ARM CHARACTERISTICS					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Weighted Average Margin Original				2.590%	2.609%	2.618%
	Weighted Average Margin Prior				2.587%	2.~~608~~607%	2.~~614~~612%
	Weighted Average Margin Current				2.~~587~~586%	2.~~607~~609%	2.612%
	Weighted Average Max Rate Original				11.074%	11.442%	11.040%
	Weighted Average Max Rate Prior				11.~~057~~054%	11.~~439~~428%	11.~~023~~002%
	Weighted Average Max Rate Current				11.~~054~~051%	11.~~428~~435%	1110.~~002~~985%
	Weighted Average Min Rate Original				2.590%	2.609%	2.618%
	Weighted Average Min Rate Prior				2.587%	2.~~608~~607%	2.~~614~~612%
	Weighted Average Min Rate Current				2.~~587~~586%	2.~~607~~609%	2.612%
	Weighted Average Cap Up Original				1.773%	1.596%	1.515%
	Weighted Average Cap Up Prior				1.~~771~~773%	1.~~599~~596%	1.~~513~~508%
	Weighted Average Cap Up Current				1.~~773~~772%	1.~~596~~592%	1.~~508~~501%
	Weighted Average Cap Down Original				1.773%	1.596%	1.515%
	Weighted Average Cap Down Prior				1.~~771~~773%	1.~~599~~596%	1.~~513~~508%
	Weighted Average Cap Down Current				1.~~773~~772%	1.~~596~~592%	1.~~508~~501%
Note: Original information refers to deal issue.
SERVICING FEES / ADVANCES					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Current Servicing Fees				12,~~711~~449.6754	1413,~~268~~668.2434	2722,~~499~~837.0851	5448,~~478~~955.9939
	Delinquent Servicing Fees				56,~~541~~059.5530	44,~~897~~492.0310	7678,~~549~~101.1921	~~177~~178,~~987~~652.7761
	TOTAL SERVICING FEES				6968,~~253~~508.2284	5958,~~165~~160.2744	~~104~~100,~~048~~938.2772	~~232~~227,~~466~~608.7600
	Total Servicing Fees				6968,~~253~~508.2284	5958,~~165~~160.2744	~~104~~100,~~048~~938.2772	~~232~~227,~~466~~608.7600
	Compensating Interest				(~~992~~4,432.6490)	(13,~~554~~747.1325)	(35,~~777~~589.2101)	(613,~~323~~769.9816)
	Delinquent Servicing Fees				(56,~~541~~059.5530)	(44,~~897~~492.0310)	(7678,~~549~~101.1921)	(~~177~~178,~~987~~652.7761)
	COLLECTED SERVICING FEES				118,~~719~~016.0364	129,~~714~~921.1109	2317,~~721~~248.8750	4835,~~155~~186.0123
	Total Advanced Principal For Current Payment Date				5251,~~826~~094.8592	55,~~586~~362.1595	8591,~~630~~165.6102	~~194~~197,~~043~~622.6189
	Total Advanced Interest For Current Payment Date				~~749~~745,~~340~~042.95	~~628~~622,~~188~~743.3184	~~983~~1,~~376~~000,526.9505	2,~~360~~368,~~906~~312.2184
	TOTAL ADVANCES FOR CURRENT PERIOD				~~802~~796,~~167~~137.8087	~~683~~678,~~774~~106.4679	1,~~069~~091,~~007~~691.5607	2,~~554~~565,~~949~~935.8273
ADDITIONAL COLLATERAL INFORMATION					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Prepayment Interest Shortfall (PPIS)				~~992~~4,432.6490	13,~~554~~747.1325	35,~~777~~589.2101	613,~~323~~769.9816
	Compensating Interest				(~~992~~4,432.6490)	(13,~~554~~747.1325)	(35,~~777~~589.2101)	(613,~~323~~769.9816)
	Net Prepayment Interest Shortfall (Net PPIS)				0.00	0.00	0.00	0.00
	Weighted Average Net Mortgage Rate				4.~~937023~~935185%	5.~~208437~~213696%	4.~~794738~~783394%	4.~~942416~~939037%
				Page 10 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 10 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Delinquency Report for November 26, 2004 Distribution
	Delinquency Report for December 27, 2004 Distribution
	Delinquency Report - Total
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance		###########	57,~~699~~526,~~878~~908.2408	2,~~138~~843,~~972~~475.6794	~~211~~967,~~120~~046.0049	811,~~049~~337,~~970~~430.9151
		% Balance		7678.9843%	01.7806%	0.2940%	0.0314%	1.1159%
		# Loans		1,~~971~~986	2931	710	15	3746
		% # Loans		7577.2310%	1.1120%	0.2739%	0.0419%	1.4179%
FORECLOSURE		Balance		-	-	-	499,200.00	499,200.00
		% Balance		0.00%	0.00%	0.00%	0.07%	0.07%
		# Loans		-	-	-	1	1
		% # Loans		0.00%	0.00%	0.00%	0.04%	0.04%
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		-	57,~~699~~526,~~878~~908.2408	2,~~138~~843,~~972~~475.6794	~~710~~1,~~320~~466,246.0049	811,~~549~~836,~~170~~630.9151
		% Balance		0.00%	01.7806%	0.2940%	0.1021%	1.1766%
		# Loans		-	2931	710	26	3847
		% # Loans		0.00%	1.1120%	0.2739%	0.0823%	1.4582%
Note: <1 Payment = 1-30days, 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 27				© COPYRIGHT 2004 Deutsche Bank
				Page 11 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Delinquency Report for November 26, 2004 Distribution
	Delinquency Report for December 27, 2004 Distribution
	Delinquency Report - Group 1 Group
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance		###########	23,~~300~~408,~~180~~463.3329	~~738~~684,~~052~~143.0564	-737,946.49	34,~~038~~830,~~232~~553.3842
		% Balance		7477.8396%	01.7108%	0.2322%	0.0023%	01.9454%
		# Loans		~~912~~934	1013	43	-4	1420
		% # Loans		7477.2151%	01.8108%	0.3325%	0.0033%	1.1466%
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		-	23,~~300~~408,~~180~~463.3329	~~738~~684,~~052~~143.0564	-737,946.49	34,~~038~~830,~~232~~553.3842
		% Balance		0.00%	01.7108%	0.2322%	0.0023%	01.9454%
		# Loans		-	1013	43	-4	1420
		% # Loans		0.00%	01.8108%	0.3325%	0.0033%	1.1466%
Note: <1 Payment = 1-30days, 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 27				© COPYRIGHT 2004 Deutsche Bank
				Page 12 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Delinquency Report for November 26, 2004 Distribution
	Delinquency Report for December 27, 2004 Distribution
	Delinquency Report - Group 2 Group
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance		###########	32,~~399~~379,~~697~~617.9159	~~422~~1,~~920~~181,332.6230	~~211~~229,~~120~~100.00	43,~~033~~790,~~738~~049.5389
		% Balance		7475.9965%	1.8330%	0.2365%	0.1113%	2.1707%
		# Loans		~~695~~693	1914	26	1	2221
		% # Loans		7374.7068%	21.0151%	0.2165%	0.11%	2.3326%
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		-	32,~~399~~379,~~697~~617.9159	~~422~~1,~~920~~181,332.6230	~~211~~229,~~120~~100.00	43,~~033~~790,~~738~~049.5389
		% Balance		0.00%	1.8330%	0.2365%	0.1113%	2.1707%
		# Loans		-	1914	26	1	2221
		% # Loans		0.00%	21.0151%	0.2165%	0.11%	2.3326%
Note: <1 Payment = 1-30days, 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 27				© COPYRIGHT 2004 Deutsche Bank
				Page 13 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Delinquency Report for November 26, 2004 Distribution
	Delinquency Report for December 27, 2004 Distribution
	Delinquency Report - Group 3 Group
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance		###########	-1,738,827.20	978,000.00	-	~~978~~2,~~000~~716,827.0020
		% Balance		81.8246%	0.0080%	0.45%	0.00%	01.4526%
		# Loans		~~364~~359	-4	1	-	15
		% # Loans		81.2504%	0.0090%	0.2223%	0.00%	01.2213%
FORECLOSURE		Balance		-	-	-	499,200.00	499,200.00
		% Balance		0.00%	0.00%	0.00%	0.23%	0.23%
		# Loans		-	-	-	1	1
		% # Loans		0.00%	0.00%	0.00%	0.2223%	0.2223%
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		-	-1,738,827.20	978,000.00	499,200.00	13,~~477~~216,~~200~~027.0020
		% Balance		0.00%	0.0080%	0.45%	0.23%	01.6749%
		# Loans		-	-4	1	1	26
		% # Loans		0.00%	0.0090%	0.2223%	0.2223%	01.4535%
Note: <1 Payment = 1-30days, 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 27				© COPYRIGHT 2004 Deutsche Bank
				Page 14 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	REO Report for November 26, 2004 Distribution
	REO Report for December 27, 2004 Distribution
	REO Report - Mortgage Loans that Become REO During Current Distribution
SUMMARY				LOAN GROUP
Total Loan Count = 0				Loan Group 1 = Group 1; REO Book Value = 000.00
Total Original Principal Balance = 000.00				Loan Group 2 = Group 2; REO Book Value = 000.00
Total Current Balance = 000.00				Loan Group 3 = Group 3; 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 27				© COPYRIGHT 2004 Deutsche Bank
				Page 15 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Prepayment Report for November 26, 2004 Distribution
	Prepayment Report for December 27, 2004 Distribution
	Prepayment Report - Voluntary Prepayments
VOLUNTARY PREPAYMENTS					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Current
	Number of Paid in Full Loans				45	14	2824	4643
	Number of Repurchased Loans				-	-1	1-	1
	Total Number of Loans Prepaid in Full				45	1415	2924	4744
	Paid in Full Balance				2,~~281~~964,~~166~~400.7000	32,~~104~~703,~~477~~968.0252	98,~~538~~634,~~124~~150.3092	14,~~923~~302,~~768~~519.0244
	Repurchased Loans Balance				-	-211,120.00	~~167,265.81~~-	~~167~~211,~~265~~120.8100
	Curtailments Amount				3732,~~717~~761.4970	3629,~~663~~975.2480	~~135~~99,~~957~~723.9160	~~210~~162,~~338~~461.6410
	Total Prepayment Amount				2,~~318~~997,~~884~~161.1970	32,~~141~~945,~~140~~064.2632	98,~~841~~733,~~348~~874.0252	1514,~~301~~676,~~372~~100.4754
	Cumulative
	Number of Paid in Full Loans				2025	3852	~~106~~130	~~164~~207
	Number of Repurchased Loans				-	89	8	1617
	Total Number of Loans Prepaid in Full				2025	4661	~~114~~138	~~180~~224
	Paid in Full Balance				912,~~769~~734,~~678~~078.46	810,~~248~~952,~~356~~324.2981	3240,~~088~~723,~~947~~098.7567	5064,~~106~~409,~~982~~501.5094
	Repurchased Loans Balance				-	12,~~880~~092,~~989~~109.94	1,553,569.93	3,~~434~~645,~~559~~679.87
	Curtailments Amount				~~256~~289,~~339~~100.1383	~~238~~268,~~822~~798.6242	~~712~~811,~~266~~990.6929	1,~~207~~369,~~428~~889.4454
	Total Prepayment Amount				1013,~~026~~023,~~017~~179.5929	1013,~~368~~313,~~168~~233.8517	3443,~~354~~088,~~784~~658.3789	5469,~~748~~425,~~970~~071.8135
SPACE INTENTIONALLY LEFT BLANK
Total Prepayments by Groups (in thousands of dollars)					Total Prepayments (in thousands of dollars)
				Page 16 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 16 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Prepayment Report for November 26, 2004 Distribution
	Prepayment Report for December 27, 2004 Distribution
	Prepayment Report - Voluntary Prepayments
VOLUNTARY PREPAYMENT RATES					GROUP 3	GROUP 2	GROUP 1	TOTAL
	SMM				1.0537%	1.6658%	2.9670%	2.0602%
	3 Months Avg SMM				01.9714%	1.4373%	23.6702%	12.8513%
	12 Months Avg SMM
	Avg SMM Since Cut-off				0.8997%	1.0816%	2.0012%	1.4453%
	CPR				1115.8623%	1817.2043%	3028.2404%	2221.0868%
	3 Months Avg CPR				1112.0086%	1518.8589%	2730.7376%	2022.0979%
	12 Months Avg CPR
	Avg CPR Since Cut-off				1011.1704%	1213.1909%	2122.5366%	1516.9694%
	PSA				~~977~~1076.9612%	~~1567~~1279.6684%	~~2571~~2035.1087%	~~1865~~1565.9449%
	3 Months Avg PSA Approximation				~~1077~~1055.4192%	~~1646~~1625.5768%	~~2837~~2611.4916%	~~2036~~1921.6354%
	12 Months Avg PSA Approximation
	Avg PSA Since Cut-off Approximation				~~1233~~1195.53%	~~1597~~1516.2339%	~~2760~~2575.3477%	~~2022~~1907.6807%
	Group 1		Group 3
	Group 2
CPR by Groups					Total CPR
PSA by Groups					Total PSA
				Page 17 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 17 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Prepayment Report for November 26, 2004 Distribution
	Prepayment Report for December 27, 2004 Distribution
	Prepayment Report - Voluntary Prepayments
	Group 1		Group 3
	Group 2
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/(0.002*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 27				© COPYRIGHT 2004 Deutsche Bank
				Page 18 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Prepayment Detail Report for November 26, 2004 Distribution
	Prepayment Detail Report for December 27, 2004 Distribution
	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution
SUMMARY						LOAN GROUP
Total Loan Count = 47						Loan Group 1 = Group 1
Total Loan Count = 44						Loan Group 1 = Group 1
Total Original Principal Balance = 15,177,004.00						Loan Group 2 = Group 2
Total Original Principal Balance = 14,738,772.00						Loan Group 2 = Group 2
Total Prepayment Amount = 15,091,033.83						Loan Group 3 = Group 3
Total Prepayment Amount = 14,513,639.44						Loan Group 3 = Group 3
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
1709696 1			496,000.00	481,626.39	Nov-05-04	5.375%	GA - 80.00%	Paid Off - 360	Jun-29-02
3160519 1			120,800.00	119,451.88	Nov-30-04	4.250%	MI - 80.00%	Paid Off - 360	Feb-28-04
3162591 1			599,400.00	599,400.00	Nov-04-04	4.875%	CA - 74.00%	Paid Off - 360	Mar-16-04
3624065 1			1,690,000.00	1,690,000.00	Dec-02-04	6.000%	UT - 65.00%	Paid Off - 360	Nov-18-02
3445946 1			122,400.00	121,769.92	Oct-19-04	5.875%	MO - 75.09%	Paid Off - 360	Apr-08-04
3661993 1			280,000.00	278,303.75	Dec-08-04	5.000%	VT - 80.00%	Paid Off - 360	Jun-01-04
3554990 1			186,500.00	186,437.80	Oct-22-04	5.875%	CA - 69.85%	Paid Off - 360	Mar-17-04
3686503 1			324,000.00	322,554.82	Dec-07-04	6.625%	NJ - 80.00%	Paid Off - 360	May-21-04
3556346 1			264,000.00	264,000.00	Nov-08-04	5.875%	CA - 80.00%	Paid Off - 360	Feb-26-04
3690428 1			680,600.00	675,641.94	Nov-30-04	5.000%	CA - 76.47%	Paid Off - 360	Aug-26-02
3645509 1			235,000.00	235,000.00	Oct-27-04	5.000%	UT - 54.78%	Paid Off - 360	Dec-15-03
3725965 1			246,400.00	244,800.00	Nov-30-04	5.125%	IL - 78.97%	Paid Off - 360	May-27-04
3658150 1			277,000.00	275,778.85	Oct-20-04	5.500%	CA - 76.94%	Paid Off - 360	May-17-04
3729828 1			240,000.00	240,000.00	Nov-18-04	6.375%	CO - 80.00%	Paid Off - 360	Jun-03-04
3659219 1			123,000.00	122,603.05	Nov-08-04	7.125%	VA - 79.36%	Paid Off - 360	May-12-04
3735157 1			230,000.00	228,485.17	Dec-07-04	5.875%	CA - 73.02%	Paid Off - 360	Apr-28-04
3711146 1			327,200.00	325,304.83	Oct-22-04	4.000%	CA - 80.00%	Paid Off - 360	May-17-04
3747089 1			375,000.00	375,000.00	Dec-02-04	5.125%	CA - 69.44%	Paid Off - 360	Aug-13-02
3715633 1			456,000.00	456,000.00	Nov-04-04	6.125%	CA - 80.00%	Paid Off - 360	May-11-04
3785437 1			528,000.00	527,967.92	Nov-24-04	3.750%	CA - 80.00%	Paid Off - 360	Apr-16-04
3730026 1			395,100.00	395,100.00	Oct-20-04	6.125%	MA - 90.00%	Paid Off - 360	May-14-04
3785478 1			320,000.00	320,000.00	Nov-19-04	6.500%	CA - 80.00%	Paid Off - 360	Apr-21-04
3753767 1			114,000.00	113,479.09	Oct-29-04	6.500%	IL - 95.00%	Paid Off - 360	Apr-30-04
3786492 1			257,250.00	257,248.90	Nov-24-04	4.625%	MI - 94.99%	Paid Off - 360	Apr-26-04
3767444 1			192,660.00	192,660.00	Nov-15-04	5.750%	CA - 79.79%	Paid Off - 360	May-19-04
3786618 1			207,100.00	207,100.00	Nov-17-04	4.250%	SC - 95.00%	Paid Off - 360	Apr-28-04
3771437 1			199,600.00	199,598.24	Nov-15-04	6.000%	CA - 80.00%	Paid Off - 360	May-28-04
3786647 1			155,100.00	155,099.81	Nov-22-04	4.250%	NJ - 80.00%	Paid Off - 360	Apr-23-04
3783208 1			385,000.00	383,950.21	Nov-03-04	6.500%	NY - 75.49%	Paid Off - 360	Jun-02-04
3786761 1			165,000.00	161,002.70	Dec-06-04	4.375%	MI - 51.08%	Paid Off - 360	Apr-19-04
3785450 1			760,000.00	760,000.00	Oct-20-04	5.500%	CA - 80.00%	Paid Off - 360	Apr-16-04
3805391 1			366,950.00	366,950.00	Nov-22-04	7.125%	CA - 79.99%	Paid Off - 360	May-20-04
3785467 1			1,050,000.00	1,050,000.00	Nov-05-04	5.250%	CA - 70.00%	Paid Off - 360	Apr-22-04
3806898 1			347,200.00	347,200.00	Nov-19-04	6.000%	CA - 80.00%	Paid Off - 360	May-10-04
3785869 1			172,400.00	172,400.00	Nov-01-04	5.250%	VA - 80.00%	Paid Off - 360	Apr-19-04
3816104 1			100,000.00	99,505.16	Nov-29-04	4.875%	CA - 63.29%	Paid Off - 360	Jun-04-04
3786836 1			264,800.00	264,800.00	Nov-01-04	4.500%	CA - 80.00%	Paid Off - 360	Apr-22-04
3816628 1			121,550.00	121,014.14	Nov-24-04	5.500%	CA - 85.00%	Paid Off - 360	Jun-01-04
3800575 1			434,400.00	434,400.00	Nov-15-04	6.375%	CA - 80.00%	Paid Off - 360	May-10-04
3821511 1			400,000.00	400,000.00	Nov-30-04	5.875%	CA - 66.67%	Paid Off - 360	May-28-04
3821460 1			176,250.00	176,250.00	Nov-03-04	7.750%	MN - 75.00%	Paid Off - 360	Jun-01-04
3826664 1			425,000.00	222,024.73	Dec-01-04	5.250%	AZ - 74.24%	Paid Off - 360	May-18-04
3823802 1			425,600.00	425,600.00	Nov-01-04	5.375%	CA - 80.00%	Paid Off - 360	May-27-04
3833823 1			344,000.00	344,000.00	Nov-22-04	5.875%	CA - 80.00%	Paid Off - 360	May-21-04
3824392 1			283,500.00	283,500.00	Nov-04-04	6.125%	VA - 90.00%	Paid Off - 360	May-14-04
3883354 1			700,000.00	700,000.00	Nov-19-04	6.000%	CA - 66.67%	Paid Off - 360	Jan-21-03
3856693 1			415,000.00	412,368.59	Nov-04-04	4.750%	CA - 55.33%	Paid Off - 360	Jul-23-02
3906363 1			230,800.00	230,800.00	Dec-01-04	6.000%	CA - 94.98%	Paid Off - 360	Jun-11-04
3874269 1			650,000.00	647,200.83	Nov-15-04	5.625%	CA - 79.27%	Paid Off - 360	May-27-04
3161579 2			165,000.00	164,690.72	Nov-23-04	4.875%	MD - 57.90%	Paid Off - 360	Mar-11-04
3884555 1			144,000.00	143,577.98	Oct-19-04	6.125%	FL - 90.00%	Paid Off - 360	Jun-16-04
3484419 2			204,792.00	202,864.44	Dec-01-04	4.750%	CA - 80.00%	Paid Off - 360	Mar-15-04
3887966 1			232,000.00	232,000.00	Nov-15-04	4.500%	CA - 56.04%	Paid Off - 360	Jun-11-04
3646196 2			300,000.00	300,000.00	Nov-18-04	6.250%	CA - 80.00%	Paid Off - 360	Apr-26-04
3888877 1			184,000.00	183,318.52	Oct-20-04	4.875%	CA - 80.00%	Paid Off - 360	Jun-11-04
3668973 2			108,760.00	108,760.00	Nov-17-04	5.875%	CA - 80.00%	Paid Off - 360	May-21-04
3161685 2			220,000.00	219,989.84	Oct-19-04	4.750%	MI - 53.01%	Paid Off - 360	Mar-11-04
3674040 2			130,000.00	129,250.09	Nov-18-04	7.000%	CA - 89.66%	Paid Off - 360	Apr-27-04
3162522 2			304,800.00	304,800.00	Oct-29-04	5.000%	CA - 80.00%	Paid Off - 360	Mar-10-04
3685675 2			106,250.00	106,250.00	Nov-16-04	6.375%	GA - 87.81%	Paid Off - 360	Apr-15-04
3162809 2			253,500.00	253,500.00	Nov-12-04	4.500%	CA - 65.00%	Paid Off - 360	Mar-30-04
3709409 2			290,000.00	290,000.00	Nov-22-04	5.750%	CA - 67.44%	Paid Off - 360	May-03-04
3162810 2			243,750.00	243,713.43	Oct-22-04	4.500%	CA - 65.00%	Paid Off - 360	Mar-30-04
3729537 2			171,200.00	170,109.18	Nov-18-04	5.750%	NV - 80.00%	Paid Off - 360	Apr-19-04
3162842 2			300,000.00	299,944.51	Nov-10-04	5.750%	CA - 80.00%	Paid Off - 360	Mar-29-04
3775782 2			221,000.00	221,000.00	Nov-18-04	6.750%	CA - 73.67%	Paid Off - 360	May-06-04
3162982 2			105,000.00	105,000.00	Oct-25-04	4.875%	AZ - 73.00%	Paid Off - 360	Feb-25-04
3786605 2			177,500.00	177,500.00	Dec-06-04	5.000%	CA - 55.99%	Paid Off - 360	Apr-17-04
3377292 2			276,000.00	276,000.00	Oct-29-04	6.500%	NJ - 80.00%	Paid Off - 360	Feb-10-04
3809820 2			276,000.00	276,000.00	Nov-23-04	6.000%	VA - 80.00%	Paid Off - 360	May-28-04
3590217 2			144,144.00	143,163.92	Oct-28-04	5.375%	NV - 80.00%	Paid Off - 360	Mar-26-04
3854628 2			166,000.00	166,000.00	Nov-23-04	7.000%	IL - 79.81%	Paid Off - 360	Jun-09-04
3604837 2			111,200.00	111,200.00	Oct-25-04	5.875%	CA - 80.00%	Paid Off - 360	Apr-16-04
3855696 2			164,000.00	163,544.09	Dec-01-04	7.875%	PA - 80.00%	Paid Off - 360	Jun-11-04
3642006 2			176,000.00	174,981.73	Nov-15-04	5.250%	VA - 79.28%	Paid Off - 360	Apr-22-04
3862909 2			228,000.00	228,000.00	Nov-22-04	6.000%	MA - 54.29%	Paid Off - 360	May-27-04
3647191 2			182,000.00	181,252.29	Nov-02-04	5.875%	CA - 72.80%	Paid Off - 360	Apr-29-04
3162430 3			580,000.00	580,000.00	Nov-30-04	5.750%	CA - 80.00%	Paid Off - 360	Mar-05-04
3785100 2			248,000.00	248,000.00	Oct-26-04	4.875%	OR - 80.00%	Paid Off - 360	Mar-10-04
3738714 3			484,000.00	484,000.00	Nov-19-04	6.000%	CA - 80.00%	Paid Off - 360	May-04-04
3786557 2			310,000.00	310,000.00	Oct-20-04	4.750%	MD - 78.00%	Paid Off - 360	Apr-19-04
3854011 3			538,000.00	538,000.00	Nov-24-04	5.625%	OR - 79.12%	Paid Off - 360	Oct-03-03
3901194 2			264,000.00	232,931.30	Nov-15-04	6.250%	NV - 89.74%	Paid Off - 360	Jun-10-04
3865242 3			637,600.00	637,600.00	Nov-16-04	6.250%	CA - 80.00%	Paid Off - 360	May-24-04
1744876 3			745,000.00	721,923.04	Oct-20-04	4.875%	CA - 41.39%	Paid Off - 360	Jul-25-02
3909431 3			724,800.00	724,800.00	Nov-19-04	5.875%	CA - 79.99%	Paid Off - 360	Jun-11-04
3767913 3			650,000.00	650,000.00	Nov-01-04	5.750%	HI - 73.86%	Paid Off - 360	May-10-04
3784940 2		FCL	211,120.00	211,120.00	Nov-30-04	5.125%	VA - 80.00%	Repur/Subs - 360	Mar-27-04
					Page 19 of 27				© COPYRIGHT 2004 Deutsche Bank
					Page 19 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Prepayment Detail Report for November 26, 2004 Distribution
	Realized Loss Report for December 27, 2004 Distribution
	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution
Loan Number			Original			Current	State &
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	Original	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Term	Date
3808152 3			370,000.00	368,443.66	Nov-01-04	5.750%	CA - 55.22%	Paid Off - 360	May-13-04
3877489 3			540,800.00	540,800.00	Nov-10-04	5.875%	CA - 80.00%	Paid Off - 360	Jun-11-04
3707616 1			168,000.00	167,265.81	Oct-31-04	6.750%	FL - 80.00%	Repur/Subs - 360	Apr-27-04
					Page 20 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Realized Loss Report for November 26, 2004 Distribution
	Realized Loss Report - Collateral
COLLATERAL REALIZED LOSSES					GROUP 3	GROUP 2	GROUP 1	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.
	Current Realized Losses							0.00
	Supplemental Losses (Recoveries)							0.00
	Current Net Realized Losses (Recoveries)							0.00
	Prior Cumulative Realized Loss							0.00
	Current Net Realized Loss (Recoveries)							0.00
	Current Cumulative Realized Loss							0.00
	Current Special Hazard Loss Coverage Amount							7,~~438~~283,~~936~~455.3681
	Current Fraud Loss Coverage Amount							23,531,443.00
	Current Bankruptcy Loss Coverage Amount							302,827.00
	Class B-1 Write Down Amount							0.00
	Class B-2 Write Down Amount							0.00
	Class B-3 Write Down Amount							0.00
	Class B-4 Write Down Amount							0.00
	Class B-5 Write Down Amount							0.00
	Class B-6 Write Down Amount							0.00
	Group 1		Group 3				3 Months Moving Average
	Group 2
Collateral Loss Severity Approximation by Groups					Collateral Loss Severity Approximation
				Page 21 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 20 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Realized Loss Report for November 26, 2004 Distribution
	Realized Loss Report for December 27, 2004 Distribution
	Realized Loss Report - Collateral
DEFAULT SPEEDS					GROUP 3	GROUP 2	GROUP 1	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		Group 3
	Group 2
CDR by Groups					Total CDR
SDA by Groups					Total SDA
				Page 22 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 21 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Realized Loss Report for November 26, 2004 Distribution
	Realized Loss Report for December 27, 2004 Distribution
	Realized Loss Report - Collateral
	Group 1		Group 3
	Group 2
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 23 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 22 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Realized Loss Detail Report for November 26, 2004 Distribution
	Realized Loss Detail Report for December 27, 2004 Distribution
	Realized Loss Detail Report - Loans Liquidated During Current Distribution
SUMMARY							LOAN GROUP
Total Loan Count Current Losses = 0
Total Loan Count Revisions = 0						Loan Group 1 = Group 1
Total Prior Principal Balance = 0.00						Loan Group 2 = Group 2
Total Current Realized Loss Amount = 0.00						Loan Group 3 = Group 3
Total Revisions Amount = 0.00
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			Current	State &		Prior	Realized		Cumulative
&		Loan	Note	LTV at	Original	Principal	Loss/(Gain)	Realized	Realized
Loan Group		Status	Rate	Origination	Term	Balance	Revisions	Loss/(Gain)	Loss/(Gain)
SPACE INTENTIONALLY LEFT BLANK
					Page 24 of 27				© COPYRIGHT 2004 Deutsche Bank
					Page 23 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Triggers, Adj. Rate Cert. and Miscellaneous Report for November 26, 2004 Distribution
	Triggers, Adj. Rate Cert. and Miscellaneous Report for December 27, 2004 Distribution
	Triggers, Adj. Rate Cert. and Miscellaneous Report
TRIGGER EVENTS					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Have the Sr. Prepay Step Down Cond been satisfied?							No
	Has the Sr. Credit Supp. Depletion Date been reached?							No
	Has the Spec. Haz. Coverage Term Date been reached?							No
	Has the Fraud LossCoverage Term. Date been reached?							No
	Has the Bank LossCoverage Term. Date been reached?							No
ADJUSTABLE RATE CERTIFICATE INFORMATION					GROUP 3	GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
ADDITIONAL INFORMATION					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Current Senior Percentage				92.~~756802~~680187%	92.~~803460~~682000%	92.~~514936~~290755%	92.~~660422~~507947%
	Next Senior Percentage				0.000000%	0.000000%	0.000000%	0.000000%
	Current Subordinate Percentage				7.~~243198~~319813%	7.~~196540~~318000%	7.~~485064~~709245%	7.~~339578~~492053%
	Next Subordinate Percentage				0.000000%	0.000000%	0.000000%	0.000000%
	Current Senior Prepayment Percentage				100.000000%	100.000000%	100.000000%	100.000000%
	Next Projected Senior Prepayment Percentage				0.000000%	0.000000%	0.000000%	0.000000%
	Current Subordinated Prepayment Percentage				0.000000%	0.000000%	0.000000%	0.000000%
	Next Projected Subordinated Prepayment Percentage				0.000000%	0.000000%	0.000000%	0.000000%
				Page 25 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 24 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Other Related Information for November 26, 2004 Distribution
	Other Related Information for December 27, 2004 Distribution
	Other Related Information
ADDITIONAL INFORMATION					GROUP 3	GROUP 2	GROUP 1	TOTAL
	Scheduled Principal
	1 Month Prior							~~246~~245,~~682~~658.2363
	2 Months Prior							~~253~~246,~~106~~682.5923
	3 Months Prior							~~258~~253,~~681~~106.7159
	4 Months Prior							~~262~~258,~~571~~681.5571
	5 Months Prior							~~265~~262,~~863~~571.9955
	6 Months Prior							0265,863.0099
	7 Months Prior							0.00
	8 Months Prior							0.00
	9 Months Prior							0.00
	10 Months Prior							0.00
	11 Months Prior							0.00
	12 Months Prior							0.00
	Scheduled Principal on 60+ Day Delinquent Loans
	1 Month Prior							~~304~~974.0409
	2 Months Prior							~~127~~304.2504
	3 Months Prior							~~323~~127.6825
	4 Months Prior							~~196~~323.0768
	5 Months Prior							0196.0007
	6 Months Prior							0.00
	7 Months Prior							0.00
	8 Months Prior							0.00
	9 Months Prior							0.00
	10 Months Prior							0.00
	11 Months Prior							0.00
	12 Months Prior							0.00
				Page 26 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 25 of 26				© COPYRIGHT 2004 Deutsche Bank
	IndyMac INDX Mortgage Loan Trust 2004-AR4
	Collateralized Asset-Backed Bonds
	Additional Certificate Report for November 26, 2004 Distribution
	Additional Certificate Report for December 27, 2004 Distribution
	Additional Certificate Report
	CLASS	Net PPIS & Relief Act Shortfall Allocation	Unpaid Interest Amount Due	Unpaid Interest Paid	Remaining Unpaid Interest Amount
		0.00	0.00	0.00	0.00
		0.00	0.00	0.00	0.00
		0.00	0.00	0.00	0.00
		0.00	0.00	0.00	0.00
		0.00	0.00	0.00	0.00
		0.00	0.00	0.00	0.00
		0.00	0.00	0.00	0.00
		0.00	0.00	0.00	0.00
		0.00	0.00	0.00	0.00
		0.00	0.00	0.00	0.00
		0.00	0.00	0.00	0.00
				Page 27 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 26 of 26				© COPYRIGHT 2004 Deutsche Bank

Filing Compare · IndyMac INDX Mortgage Loan Trust 2004-AR4