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): ~~July~~August 25, 2005 (Date of earliest event reported) Indymac MBS Inc (as Depositor under the Pooling and Servicing Agreement, dated as January 1, 2005, providing for the issuance of IndyMAc INDX Mortgage Loan Trust 2005-AR2 Mortgage Pass-Through Certificates, Series 2005-AR2) (Exact name of registrant as specified in charter) DELAWARE (State or Other Jurisdiction of Incorporation) 333-119384-09 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 ~~July~~August 25, 2005. 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: ~~Jul~~Aug 2526, 2005 By: /s/ Katherine M. Wannenmacher Katherine M. Wannenmacher Vice President EXHIBIT INDEX DOCUMENT 99.1 Monthly Remittance Statement to the Certificateholders dated as of ~~July~~August 25, 2005.

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

July 25, 2005 Distribution

August 25, 2005 Distribution

Contents

TABLE OF CONTENTS

Page

Contents

Certificate Payment Report

Collection Account Report

Credit Enhancement Report

Collateral Report

Delinquency Report

REO Report

Prepayment Report

Prepayment Detail Report

10.

Realized Loss Report

11.

Realized Loss Detail Report

12.

Triggers, Adj. Rate Cert. and Miscellaneous Report

13.

Other Related Information

Total Number of Pages

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: January 1, 2005

Certificate Insurer(s):

Closing Date: January 28, 2005

First Payment Date: February 25, 2005

Servicer(s):

IndyMac Bank Servicer

Distribution Date: July 25, 2005

Distribution Date: August 25, 2005

Underwriter(s):

Greenwich Capital Markets Underwriter

Record Date: ~~July~~August 2224, 2005

June 30, 2005

July 29, 2005

Page 1 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Master Remic Series 2005-AR2

Certificate Payment Report for July 25, 2005 Distribution

Certificate Payment Report for August 25, 2005 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

STEP

604,166,000.00

~~581~~574,~~332~~616,~~304~~412.5130

1,~~652~~880,~~318~~272.2359

68,~~715~~348,~~892~~990.2178

810,~~368~~229,~~210~~263.4437

~~574~~566,~~616~~267,~~412~~421.3052

2-A-1A

STEP

133,015,000.00

~~125~~123,~~314~~393,~~516~~168.8179

~~354~~401,~~231~~644.5676

12,~~921~~471,~~348~~669.0219

2,~~275~~873,~~579~~313.5895

~~123~~120,~~393~~921,~~168~~499.7960

2-A-1B

STEP

88,682,000.00

8382,~~548~~267,~~035~~060.7806

~~240~~272,~~717~~738.3016

1,~~280~~647,~~975~~878.7256

1,~~521~~920,~~693~~616.0272

8280,~~267~~619,~~060~~181.0650

2-A-2A

STEP

188,365,000.00

~~177~~174,~~460~~739,~~203~~346.4399

~~504~~571,~~394~~785.3597

23,~~720~~500,~~856~~176.4442

34,~~225~~071,~~250~~962.7939

~~174~~171,~~739~~239,~~346~~170.9957

2-A-2B

STEP

33,242,000.00

3130,~~317~~837,~~559~~392.4416

90102,~~475~~500.2507

~~480~~617,~~167~~698.2896

~~570~~720,~~642~~199.5303

30,~~837~~219,~~392~~693.1620

2-A-3

STEP

24,000,000.00

22,~~610~~263,~~595~~925.8250

6574,~~321~~002.1681

~~346~~445,~~670~~965.3220

~~411~~519,~~991~~968.4801

2221,~~263~~817,~~925~~960.5030

2-A-4

STEP

43,130,000.00

40,~~633~~010,~~124~~129.9146

~~126~~129,~~111~~032.0067

~~622~~801,~~995~~436.4562

~~749~~930,~~106~~469.4529

4039,~~010~~208,~~129~~692.4684

A-X-1

~~610~~586,~~073~~418.4059

A-X-2

~~953~~630,~~115~~965.3652

A-R

100.00

B-1

SUB

26,894,000.00

26,~~797~~792,~~724~~420.8169

8588,~~180~~414.5999

530,~~304~~115.1268

90118,~~484~~530.7167

26,~~792~~762,~~420~~305.6901

B-2

SUB

17,929,000.00

17,~~864~~861,~~817~~281.7372

6264,~~740~~895.9499

320,~~536~~076.0174

6684,~~276~~972.9573

17,~~861~~841,~~281~~204.7298

B-3

SUB

14,344,000.00

14,~~292~~289,~~651~~822.3235

6062,~~319~~041.5165

216,~~828~~062.9729

6378,~~148~~103.4894

14,~~289~~273,~~822~~760.3506

B-4

SUB

11,355,000.00

11,~~314~~312,~~351~~111.3588

4749,~~750~~113.1542

212,~~239~~715.4723

4961,~~989~~828.6265

11,~~312~~299,~~111~~396.8865

B-5

SUB

5,976,000.00

5,~~954~~953,~~607~~428.1049

25,~~130~~847.3380

16,~~178~~691.6187

2632,~~308~~539.9467

5,~~953~~946,~~428~~736.4962

B-6

SUB

4,184,209.95

4,~~169~~168,~~231~~406.6141

1718,~~595~~097.4883

~~825~~4,685.2044

1822,~~420~~783.6827

4,~~168~~163,~~406~~720.4197

SUB

100.00

~~163~~184,~~277~~538.7263

100.00

Total

1,195,282,409.95

1,~~142~~128,~~609~~505,~~824~~006.6280

5,~~058~~142,~~752~~311.3345

1417,~~104~~924,~~817~~162.8298

1923,~~163~~066,~~570~~474.1543

1,~~128~~110,~~505~~580,~~006~~843.8082

Interest Accrual Detail

Current Period Factor Information per $1,000 of Original Face

Orig. Principal

Prior

Current

Period

(with Notional)

Principal

Total

Principal

Class

Starting

Ending

Method

Cusip

Balance

Interest

Principal

Distribution

Balance

(1)

(2)

(3)

(4)=(2)+(3)

(5)

1-A-1

A-Act/360

45660LCK3

604,166,000.00

~~962~~951.~~206255~~090284

23.~~734875~~112179

1113.~~115972~~819034

1316.~~850846~~931213

~~951~~937.~~090284~~271249

2-A-1A

0607/2725/05

0708/24/05

A-Act/360

45660LCL1

133,015,000.00

~~942~~927.~~108159~~663563

23.~~663095~~019545

1418.~~444597~~581883

1721.~~107691~~601428

~~927~~909.~~663563~~081680

2-A-1B

0607/2725/05

0708/24/05

A-Act/360

45660LCM9

88,682,000.00

~~942~~927.~~108159~~663563

23.~~714387~~075462

1418.~~444597~~581883

1721.~~158984~~657346

~~927~~909.~~663563~~081679

2-A-2A

0607/2725/05

0708/24/05

A-Act/360

45660LCN7

188,365,000.00

~~942~~927.~~108159~~663563

23.~~677750~~035521

1418.~~444597~~581883

1721.~~122346~~617404

~~927~~909.~~663563~~081680

2-A-2B

0607/2725/05

0708/24/05

A-Act/360

45660LCP2

33,242,000.00

~~942~~927.~~108160~~663563

23.~~721715~~083451

1418.~~444597~~581883

1721.~~166312~~665334

~~927~~909.~~663563~~081680

2-A-3

0607/2725/05

0708/24/05

A-Act/360

45660LCQ0

24,000,000.00

~~942~~927.~~108159~~663563

23.~~721715~~083450

1418.~~444597~~581883

1721.~~166312~~665334

~~927~~909.~~663563~~081679

2-A-4

A-30/360

45660LCR8

43,130,000.00

~~942~~927.~~108159~~663563

2.~~923974~~991715

1418.~~444597~~581883

1721.~~368571~~573598

~~927~~909.~~663563~~081680

A-X-1

F-30/360

45660LCS6

1,114,600,000.00

~~821~~789.~~021081~~187045

0.~~547347~~526125

~~789~~758.~~187045~~488485

A-X-2

A-30/360

45660LCT4

1,195,282,309.00

~~955~~944.~~932934~~132527

0.~~797398~~527880

~~944~~929.~~132527~~136770

A-R

A-30/360

45660LEE5

100.00

B-1

A-30/360

45660LCU1

26,894,000.00

996.~~420198~~222975

3.~~167271~~287536

01.~~197223~~119792

34.~~364494~~407328

~~996~~995.~~222975~~103183

B-2

A-30/360

45660LCV9

17,929,000.00

996.~~420198~~222975

3.~~499411~~619610

01.~~197223~~119791

34.~~696634~~739402

~~996~~995.~~222975~~103184

B-3

A-30/360

45660LCW7

14,344,000.00

996.~~420198~~222975

4.~~205208~~325268

01.~~197223~~119792

45.~~402432~~445060

~~996~~995.~~222975~~103183

B-4

A-30/360

45660LCX5

11,355,000.00

996.~~420198~~222975

4.~~205209~~325268

01.~~197223~~119791

45.~~402432~~445059

~~996~~995.~~222975~~103184

B-5

A-30/360

45660LCY3

5,976,000.00

996.~~420197~~222974

4.~~205209~~325268

01.~~197224~~119791

45.~~402433~~445059

~~996~~995.~~222974~~103183

B-6

A-30/360

45660LCZ0

4,184,209.95

996.~~420270~~223053

4.~~205210~~325268

01.~~197218~~119791

45.~~402427~~445059

~~996~~995.~~223053~~103262

A-30/360

45660LDA4

100.00

1,000.000000

1,~~632~~845,~~777~~386.~~200000~~300000

1,000.000000

Page 2 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Master Remic Series 2005-AR2

Certificate Payment Report for July 25, 2005 Distribution

Certificate Payment Report for August 25, 2005 Distribution

Distribution in Dollars - to Date

Current

Original

Unscheduled

Scheduled

Total

Realized

Deferred

Principal

Class

Face Value

Interest

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

604,166,000.00

911,~~613~~493,~~556~~829.8645

2735,~~333~~681,~~318~~200.8113

2,~~216~~217,~~268~~378.8935

2937,~~549~~898,~~587~~578.7048

3949,~~163~~392,~~144~~407.5693

~~574~~566,~~616~~267,~~412~~421.3052

2-A-1A

133,015,000.00

2,~~080~~481,~~089~~734.8662

911,~~107~~276,~~219~~287.9477

~~514~~817,~~611~~212.2763

912,~~621~~093,~~831~~500.2140

1114,~~701~~575,~~921~~235.0702

~~123~~120,~~393~~921,~~168~~499.7960

2-A-1B

88,682,000.00

1,~~416~~689,~~858~~597.9309

67,~~071~~517,~~845~~977.1332

~~343~~544,~~094~~841.8118

68,~~414~~062,~~939~~818.9450

79,~~831~~752,~~798~~415.8759

8280,~~267~~619,~~060~~181.0650

2-A-2A

188,365,000.00

23,~~963~~535,~~889~~675.5451

1316,~~497~~921,~~045~~598.6546

~~128~~204,~~607~~230.3697

1317,~~625~~125,~~653~~829.0143

1620,~~589~~661,~~542~~504.5594

~~174~~171,~~739~~239,~~346~~170.9957

2-A-2B

33,242,000.00

~~532~~635,~~711~~211.5158

23,~~404~~022,~~607~~306.8480

23,~~937~~657,~~319~~518.3538

30,~~837~~219,~~392~~693.1620

2-A-3

24,000,000.00

~~384~~458,~~606~~608.1293

12,~~736~~182,~~074~~039.5070

2,~~120~~640,~~680~~648.6263

2221,~~263~~817,~~925~~960.5030

2-A-4

43,130,000.00

~~689~~818,~~113~~145.0976

3,~~119~~921,~~870~~307.5416

34,~~808~~739,~~983~~452.6392

4039,~~010~~208,~~129~~692.4684

A-X-1

4,~~047~~634,~~995~~413.3493

A-X-2

34,~~652~~283,~~810~~775.4193

A-R

100.00

0.26

100.00

100.26

B-1

26,894,000.00

~~453~~541,~~051~~466.9695

4761,~~401~~455.6605

5470,~~177~~239.6594

~~101~~131,~~579~~694.3199

~~554~~673,~~631~~161.2794

26,~~792~~762,~~420~~305.6901

B-2

17,929,000.00

~~337~~402,~~393~~289.2726

2432,~~830~~191.1667

4255,~~888~~603.1235

6787,~~718~~795.2802

~~405~~490,~~111~~084.5528

17,~~861~~841,~~281~~204.7298

B-3

14,344,000.00

~~330~~392,~~052~~093.2489

3140,~~606~~976.1456

2229,~~571~~263.5138

5470,~~177~~239.6594

~~384~~462,~~229~~333.8983

14,~~289~~273,~~822~~760.3506

B-4

11,355,000.00

~~261~~310,~~276~~389.0143

2735,~~084~~114.2605

1520,~~803~~489.8630

4255,~~888~~603.1235

~~304~~365,~~164~~992.1378

11,~~312~~299,~~111~~396.8865

B-5

5,976,000.00

~~137~~163,~~506~~354.4323

2229,~~571~~263.5138

~~160~~192,~~077~~617.9461

5,~~953~~946,~~428~~736.4962

B-6

4,184,209.95

96114,~~277~~375.7457

1520,~~803~~488.5498

~~112~~134,~~081~~864.2855

4,~~168~~163,~~406~~720.4197

100.00

~~481~~666,~~671~~210.5821

100.00

Total

1,195,282,409.95

2732,~~478~~621,~~861~~172.1560

6380,~~423~~721,~~476~~718.1405

3,~~353~~979,~~927~~848.0108

6684,~~777~~701,~~403~~566.1513

94117,~~256~~322,~~264~~738.3073

1,~~128~~110,~~505~~580,~~006~~843.8082

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

(1)

(2)

(3)

(4)

(5)=(1)-(2)+(3)+(4)

(6)

(7)=(5)-(6)

1-A-1

3.~~65438~~80000%

~~581~~574,~~332~~616,~~304~~412.5130

1,~~652~~880,~~318~~272.2359

2-A-1A

3.~~63438~~78000%

~~125~~123,~~314~~393,~~516~~168.8179

~~354~~401,~~231~~644.5676

2-A-1B

3.~~70438~~85000%

8382,~~548~~267,~~035~~060.7806

~~240~~272,~~717~~738.3016

2-A-2A

3.~~65438~~80000%

~~177~~174,~~460~~739,~~203~~346.4399

~~504~~571,~~394~~785.3597

2-A-2B

3.~~71438~~86000%

3130,~~317~~837,~~559~~392.4416

90102,~~475~~500.2507

2-A-3

3.~~71438~~86000%

22,~~610~~263,~~595~~925.8250

6574,~~321~~002.1681

2-A-4

3.~~72438~~87000%

40,~~633~~010,~~124~~129.9146

~~126~~129,~~111~~032.0067

A-X-1

0.80000%

~~915~~879,~~110~~627,~~097~~880.2300

~~610~~586,~~073~~418.4059

A-X-2

10.~~00099~~67094%

1,~~142~~128,~~609~~504,~~724~~906.3047

~~953~~630,~~115~~965.3652

A-R

5.~~20427~~33352%

B-1

3.~~81438~~96000%

26,~~797~~792,~~724~~420.8169

8588,~~180~~414.5999

B-2

4.~~21438~~36000%

17,~~864~~861,~~817~~281.7372

6264,~~740~~895.9499

B-3

5.~~06438~~21000%

14,~~292~~289,~~651~~822.3235

6062,~~319~~041.5165

B-4

5.~~06438~~21000%

11,~~314~~312,~~351~~111.3588

4749,~~750~~113.1542

B-5

5.~~06438~~21000%

5,~~954~~953,~~607~~428.1049

25,~~130~~847.3380

B-6

5.~~06438~~21000%

4,~~169~~168,~~231~~406.6141

1718,~~595~~097.4883

100.00

~~163~~184,~~277~~538.7263

Total

3,~~200~~136,~~329~~637,~~646~~793.1527

4,~~895~~957,~~474~~772.6182

5,~~058~~142,~~752~~311.3345

Page 3 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Collection Account Report for July 25, 2005 Distribution

Collection Account Report for August 25, 2005 Distribution

Collection Account Report

SUMMARY

GROUP 2

GROUP 1

TOTAL

Principal Collections

79,~~373~~575,~~061~~088.2609

68,~~731~~349,~~756~~074.5791

1417,~~104~~924,~~817~~163.8300

Principal Withdrawals

0.00

Principal Other Accounts

0.00

TOTAL PRINCIPAL

79,~~373~~575,~~061~~088.2609

68,~~731~~349,~~756~~074.5791

1417,~~104~~924,~~817~~163.8300

Interest Collections

2,~~224~~248,~~239~~754.2805

2,~~767~~801,~~140~~560.1479

45,~~991~~050,~~379~~314.4284

Interest Withdrawals

0.00

Interest Other Accounts

0.00

~~163~~184,~~277~~538.7263

Interest Fees

(38,~~969~~576.8553)

(5653,~~934~~965.9949)

(9592,~~904~~542.8403)

TOTAL INTEREST

2,~~185~~210,~~269~~177.4352

2,~~873~~932,~~482~~133.8793

5,~~058~~142,~~752~~311.3044

TOTAL AVAILABLE FUNDS TO BONDHOLDERS

911,~~558~~785,~~330~~265.6961

911,~~605~~281,~~239~~208.4484

1923,~~163~~066,~~570~~474.1344

Interest Payable to Bondholders

2,~~185~~210,~~269~~177.4352

2,~~873~~932,~~482~~133.8793

5,~~058~~142,~~752~~311.3044

PRINCIPAL - COLLECTIONS

GROUP 2

GROUP 1

TOTAL

Scheduled Principal

~~675~~700.6624

1,~~164~~193.6759

1,~~840~~893.3383

Curtailments

(~~330~~419,~~624~~580.6740)

(~~444~~480,~~942~~905.7965)

(~~775~~900,~~567~~486.4605)

Prepayments in Full

78,~~703~~743,~~010~~197.2780

68,~~949~~828,~~244~~786.1597

1417,~~652~~571,~~254~~984.4277

Repurchases/Substitutions

01,250,770.0045

~~226,290~~0.5400

~~226~~1,~~290~~250,770.5445

Liquidations

0.00

Insurance Principal

0.00

Other Additional Principal

0.00

LESS: Delinquent Principal

0(66.0077)

(1,~~164~~193.6759)

(1,~~164~~260.6736)

LESS: Realized Losses

0.00

PLUS: Recoveries

0.00

PLUS: Substitution Shortfall Principal

0.00

PLUS: Principal Loan Adjustments

0.00

PLUS: Principal Advanced

066.0077

1,~~164~~193.6759

1,~~164~~260.6736

TOTAL PRINCIPAL

79,~~373~~575,~~061~~088.2609

68,~~731~~349,~~756~~074.5791

1417,~~104~~924,~~817~~163.8300

Page 4 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Collection Account Report for July 25, 2005 Distribution

Collection Account Report for August 25, 2005 Distribution

Collection Account Report

PRINCIPAL - WITHDRAWALS

GROUP 2

GROUP 1

TOTAL

SPACE INTENTIONALLY LEFT BLANK

PRINCIPAL - OTHER ACCOUNTS

GROUP 2

GROUP 1

TOTAL

TOTAL PRINCIPAL OTHER ACCOUNTS

0.00

INTEREST - COLLECTIONS

GROUP 2

GROUP 1

TOTAL

Scheduled Interest

2,~~347~~365,~~802~~150.8718

2,~~905~~941,~~271~~680.3521

5,~~253~~306,~~074~~830.2239

Repurchases/Substitutions

05,245.0094

~~1,132~~0.2100

15,~~132~~245.2194

Liquidations

0.00

Insurance Interest

0.00

Other Additional Interest

0.00

LESS: Prepayment Interest Shortfalls

0(4,206.0034)

0(5,897.0032)

0(10,103.0066)

LESS: Delinquent Interest

(1,~~795~~809,~~588~~438.9637)

(2,~~071~~133,~~888~~782.2981)

(3,~~867~~943,~~477~~221.2518)

LESS: Interest Realized Losses

0.00

PLUS: Compensating Interest

04,206.0034

05,897.0032

010,103.0066

LESS: Civil Relief Act Shorfalls

0.00

PLUS: Substiution Shortfall Interest

0.00

PLUS: Interest Loan Adjustments

0.00

LESS: Excess, Special Hazard, Fraud, & Bankruptcy Interest Losses

0.00

Interest Advanced

1,~~672~~687,~~025~~796.3730

1,~~932~~993,~~624~~663.8739

3,~~604~~681,~~650~~459.2469

Shortfall reserve deposits

0.00

TOTAL INTEREST

2,~~224~~248,~~239~~754.2805

2,~~767~~801,~~140~~560.1479

45,~~991~~050,~~379~~314.4284

Page 5 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Collection Account Report for July 25, 2005 Distribution

Collection Account Report for August 25, 2005 Distribution

Collection Account Report

INTEREST - WITHDRAWALS

GROUP 2

GROUP 1

TOTAL

SPACE INTENTIONALLY LEFT BLANK

INTEREST - OTHER ACCOUNTS

GROUP 2

GROUP 1

TOTAL

Prepayment Penalties

0.00

~~163~~184,~~277~~538.7263

TOTAL INTEREST OTHER ACCOUNTS

0.00

~~163~~184,~~277~~538.7263

INTEREST - FEES

GROUP 2

GROUP 1

TOTAL

Current Servicing Fees

3837,~~214~~832.8832

5653,~~023~~063.6597

9490,~~238~~896.5329

Trustee Fees

~~754~~744.9721

~~911~~901.3452

1,~~666~~645.3174

TOTAL INTEREST FEES

38,~~969~~576.8553

5653,~~934~~965.9949

9592,~~904~~542.8403

Page 6 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Credit Enhancement Report for July 25, 2005 Distribution

Credit Enhancement Report for August 25, 2005 Distribution

Credit Enhancement Report

ACCOUNTS

GROUP 2

GROUP 1

TOTAL

Carryover Shortfall Reserve Fund Beginning Balance

1,000.00

Required Reserve Fund Deposit

0.00

Carryover Shortfall Amount

0.00

Carryover Shortfall Reserve Fund Ending Balance

1,000.00

INSURANCE

GROUP 2

GROUP 1

TOTAL

SPACE INTENTIONALLY LEFT BLANK

STRUCTURAL FEATURES

GROUP 2

GROUP 1

TOTAL

SPACE INTENTIONALLY LEFT BLANK

Page 7 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Collateral Report for July 25, 2005 Distribution

Collateral Report for August 25, 2005 Distribution

Collateral Report

COLLATERAL

GROUP 2

GROUP 1

TOTAL

Loan Count:

Original

1086

2948

4034

Prior

1,~~033~~020

2,~~846~~812

3,~~879~~832

Prefunding

Scheduled Paid Offs

Full Voluntary Prepayments

(1317)

(3343)

(4660)

Repurchases

-(1)

~~(1)~~-

(1)

Liquidations

Current

1,~~020~~002

2,~~812~~769

3,~~832~~771

Principal Balance:

Original

547,384,686.80

647,897,623.15

1,195,282,309.95

Prior

~~517~~510,~~691~~318,~~106~~045.7549

~~624~~618,~~918~~186,~~617~~860.5598

1,~~142~~128,~~609~~504,~~724~~906.3047

Prefunding

Scheduled Principal

(~~675~~700.6624)

(1,~~164~~193.6759)

(1,~~840~~893.3383)

Partial and Full Voluntary Prepayments

(78,~~372~~323,~~385~~617.6040)

(68,~~504~~347,~~301~~881.3632)

(1316,~~876~~671,~~686~~498.9672)

Repurchases

-(1,250,770.45)

~~(226,290.54)~~-

(~~226~~1,~~290~~250,770.5445)

Liquidations

Current

~~510~~500,~~318~~742,~~045~~957.4940

~~618~~609,~~186~~837,~~860~~786.9807

1,~~128~~110,~~504~~580,~~906~~743.47

PREFUNDING

GROUP 2

GROUP 1

TOTAL

SPACE INTENTIONALLY LEFT BLANK

Group 1

Group 2

Current Prin Balance by Groups (in millions of dollars)

Total Current Principal Balance (in millions of dollars)

Page 8 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Collateral Report for July 25, 2005 Distribution

Collateral Report for August 25, 2005 Distribution

Collateral Report

CHARACTERISTICS

GROUP 2

GROUP 1

TOTAL

Weighted Average Coupon Original

3.358160%

3.475396%

3.421707%

Weighted Average Coupon Prior

5.~~281388~~442171%

5.~~419255~~581022%

5.~~356624~~518111%

Weighted Average Coupon Current

5.~~442171~~573927%

5.~~581022~~710274%

5.~~518111~~648617%

Weighted Average Months to Maturity Original

Weighted Average Months to Maturity Prior

~~355~~354

Weighted Average Months to Maturity Current

~~354~~353

Weighted Avg Remaining Amortization Term Original

359

Weighted Avg Remaining Amortization Term Prior

~~354~~353

Weighted Avg Remaining Amortization Term Current

~~353~~352

Weighted Average Seasoning Original

0.85

0.84

Weighted Average Seasoning Prior

56.83

56.84

56.83

Weighted Average Seasoning Current

67.83

67.84

67.83

Note: Original information refers to deal issue.

Group 1

Group 2

WAC by Groups

Total WAC

WARAT by Groups

Total WARAT

Note: Dates correspond to distribution dates.

Page 9 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Collateral Report for July 25, 2005 Distribution

Collateral Report for August 25, 2005 Distribution

Collateral Report

ARM CHARACTERISTICS

GROUP 2

GROUP 1

TOTAL

Weighted Average Margin Original

2.930%

3.078%

Weighted Average Margin Prior

2.~~936~~939%

3.080%

Weighted Average Margin Current

2.~~939~~942%

3.080%

Weighted Average Max Rate Original

9.950%

Weighted Average Max Rate Prior

9.950%

Weighted Average Max Rate Current

9.950%

Weighted Average Min Rate Original

Weighted Average Min Rate Prior

Weighted Average Min Rate Current

Weighted Average Cap Up Original

Weighted Average Cap Up Prior

Weighted Average Cap Up Current

Weighted Average Cap Down Original

Weighted Average Cap Down Prior

Weighted Average Cap Down Current

Note: Original information refers to deal issue.

SERVICING FEES / ADVANCES

GROUP 2

GROUP 1

TOTAL

Current Servicing Fees

3837,~~214~~832.8832

5653,~~023~~063.6597

9490,~~238~~896.5329

Delinquent Servicing Fees

~~123~~121,~~563~~642.5907

~~139~~140,~~263~~119.42

~~262~~261,~~827~~761.0149

TOTAL SERVICING FEES

~~161~~159,~~778~~474.4739

~~195~~193,~~287~~183.0739

~~357~~352,~~065~~657.5478

Total Servicing Fees

~~161~~159,~~778~~474.4739

~~195~~193,~~287~~183.0739

~~357~~352,~~065~~657.5478

Compensating Interest

0(4,206.0034)

0(5,897.0032)

0(10,103.0066)

Delinquent Servicing Fees

(~~123~~121,~~563~~642.5907)

(~~139~~140,~~263~~119.42)

(~~262~~261,~~827~~761.0149)

COLLECTED SERVICING FEES

3833,~~214~~625.8898

5647,~~023~~166.65

9480,~~238~~792.5363

Total Advanced Principal For Current Payment Date

066.0077

1,~~164~~193.6759

1,~~164~~260.6736

Total Advanced Interest For Current Payment Date

1,~~672~~687,~~025~~796.3730

1,~~932~~993,~~624~~663.8739

3,~~604~~681,~~650~~459.2469

TOTAL ADVANCES FOR CURRENT PERIOD

1,~~672~~687,~~025~~863.3707

1,~~933~~994,~~789~~856.5498

3,~~605~~682,~~814~~720.9105

ADDITIONAL COLLATERAL INFORMATION

GROUP 2

GROUP 1

TOTAL

Prepayment Interest Shortfall (PPIS)

04,206.0034

05,897.0032

010,103.0066

Compensating Interest

0(4,206.0034)

0(5,897.0032)

0(10,103.0066)

Net Prepayment Interest Shortfall (Net PPIS)

0.00

Weighted Average Net Mortgage Rate

5.~~065421~~197177%

5.~~204272~~333524%

5.~~141361~~271867%

Current Deferred Interest

~~661~~704,~~866~~650.8837

~~847~~901,~~172~~501.9216

1,~~509~~606,~~039~~151.8053

Cumulative Deferred Interest

23,~~930~~635,~~615~~266.7916

34,~~790~~691,~~249~~751.9309

68,~~720~~327,~~865~~017.7225

Net Deferred Interest

0.00

Cumulative Net Deferred Interest

0.00

Page 10 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Delinquency Report for July 25, 2005 Distribution

Delinquency Report for August 25, 2005 Distribution

Delinquency Report - Total

<1 PAYMENT

1 PAYMENT

2 PAYMENTS

3+ PAYMENTS

TOTAL

DELINQUENT

Balance

###########

98,~~182~~648,~~366~~318.2664

~~339~~984,~~805~~646.0970

9,~~522~~632,~~171~~965.3534

% Balance

7374.6753%

0.8178%

0.0309%

0.00%

0.8487%

# Loans

2,~~759~~754

3132

3334

% # Loans

7273.0003%

0.8185%

0.05%

0.00%

0.8690%

FORECLOSURE

Balance

% Balance

0.00%

# Loans

% # Loans

0.00%

BANKRUPTCY

Balance

~~698~~699,~~422~~607.7732

~~203,816.47~~-

~~112~~204,~~805~~257.5978

-113,035.98

1,~~015~~016,~~044~~901.8308

% Balance

0.06%

0.0200%

0.0102%

0.0001%

0.09%

# Loans

-1

% # Loans

0.08%

0.0300%

0.03%

0.0003%

0.13%

REO

Balance

% Balance

0.00%

# Loans

% # Loans

0.00%

TOTAL

Balance

~~698~~699,~~422~~607.7732

98,~~386~~648,~~182~~318.7364

~~452~~1,~~610~~188,904.6848

-113,035.98

10,~~537~~649,~~216~~866.1842

% Balance

0.06%

0.8378%

0.0411%

0.0001%

0.9396%

# Loans

-1

3839

% # Loans

0.08%

0.8485%

0.08%

0.0003%

01.9903%

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 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Delinquency Report for July 25, 2005 Distribution

Delinquency Report for August 25, 2005 Distribution

Delinquency Report - Group 1 Group

<1 PAYMENT

1 PAYMENT

2 PAYMENTS

3+ PAYMENTS

TOTAL

DELINQUENT

Balance

###########

5,~~400~~461,~~314~~303.6150

~~339~~333,~~805~~116.0980

5,~~740~~794,~~119~~420.7030

% Balance

7172.0847%

0.8790%

0.05%

0.00%

0.9395%

# Loans

1,977

2325

2526

% # Loans

7071.3140%

0.8290%

0.0704%

0.00%

0.8994%

FORECLOSURE

Balance

% Balance

0.00%

# Loans

% # Loans

0.00%

BANKRUPTCY

Balance

~~698~~699,~~422~~607.7732

~~203,816.47~~-

~~112~~204,~~805~~257.5978

-113,035.98

1,~~015~~016,~~044~~901.8308

% Balance

0.11%

0.0300%

0.0203%

0.0002%

0.1617%

# Loans

-1

% # Loans

0.11%

0.0400%

0.04%

0.0004%

0.18%

REO

Balance

% Balance

0.00%

# Loans

% # Loans

0.00%

TOTAL

Balance

~~698~~699,~~422~~607.7732

5,~~604~~461,~~131~~303.0850

~~452~~537,~~610~~374.6858

-113,035.98

6,~~755~~811,~~164~~321.5338

% Balance

0.11%

0.9190%

0.0709%

0.0002%

1.0912%

# Loans

2425

-1

3031

% # Loans

0.11%

0.8590%

0.1107%

0.0004%

1.0712%

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 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Delinquency Report for July 25, 2005 Distribution

Delinquency Report for August 25, 2005 Distribution

Delinquency Report - Group 2 Group

<1 PAYMENT

1 PAYMENT

2 PAYMENTS

3+ PAYMENTS

TOTAL

DELINQUENT

Balance

###########

3,~~782~~187,~~051~~015.6514

-651,529.90

3,~~782~~838,~~051~~545.6504

% Balance

7677.8004%

0.7464%

0.0013%

0.00%

0.7477%

# Loans

~~782~~777

-1

% # Loans

7677.6754%

0.7870%

0.0010%

0.00%

0.7880%

FORECLOSURE

Balance

% Balance

0.00%

# Loans

% # Loans

0.00%

BANKRUPTCY

Balance

% Balance

0.00%

# Loans

% # Loans

0.00%

REO

Balance

% Balance

0.00%

# Loans

% # Loans

0.00%

TOTAL

Balance

3,~~782~~187,~~051~~015.6514

-651,529.90

3,~~782~~838,~~051~~545.6504

% Balance

0.00%

0.7464%

0.0013%

0.00%

0.7477%

# Loans

-1

% # Loans

0.00%

0.7870%

0.0010%

0.00%

0.7880%

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 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

REO Report for July 25, 2005 Distribution

REO Report for August 25, 2005 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

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

Paid to

Note

LTV at

Original

Origination

Loan Group

Balance

Date

Rate

Origination

Term

Date

SPACE INTENTIONALLY LEFT BLANK

Page 14 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Prepayment Report for July 25, 2005 Distribution

Prepayment Report for August 25, 2005 Distribution

Prepayment Report - Voluntary Prepayments

VOLUNTARY PREPAYMENTS

GROUP 2

GROUP 1

TOTAL

Current

Number of Paid in Full Loans

1317

3343

4660

Number of Repurchased Loans

-1

Total Number of Loans Prepaid in Full

1318

3443

4761

Paid in Full Balance

78,~~703~~743,~~010~~197.2780

68,~~949~~828,~~244~~786.1597

1417,~~652~~571,~~254~~984.4277

Repurchased Loans Balance

-1,250,770.45

~~226,290.54~~-

~~226~~1,~~290~~250,770.5445

Curtailments Amount

(~~330~~419,~~624~~580.6740)

(~~444~~480,~~942~~905.7965)

(~~775~~900,~~567~~486.4605)

Total Prepayment Amount

79,~~372~~574,~~385~~387.6085

68,~~730~~347,~~591~~881.9032

1417,~~102~~922,~~977~~269.5017

Cumulative

Number of Paid in Full Loans

6279

~~126~~169

~~188~~248

Number of Repurchased Loans

1415

Total Number of Loans Prepaid in Full

6684

~~136~~179

~~202~~263

Paid in Full Balance

3544,~~686~~429,~~717~~915.4020

2837,~~287~~115,~~130~~917.7875

6381,~~973~~545,~~848~~832.1895

Repurchased Loans Balance

13,~~868~~119,~~714~~485.6510

2,115,160.57

35,~~983~~234,~~875~~645.2267

Curtailments Amount

(~~738~~1,~~518~~158,098.3474)

(~~953~~1,~~711~~434,617.9762)

(12,~~692~~592,~~230~~716.3136)

Total Prepayment Amount

3646,~~816~~391,~~913~~301.7156

2937,~~448~~796,~~579~~460.3870

6684,~~265~~187,~~493~~762.0926

Total Prepayments by Groups (in thousands of dollars)

Total Prepayments (in thousands of dollars)

Page 15 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Prepayment Report for July 25, 2005 Distribution

Prepayment Report for August 25, 2005 Distribution

Prepayment Report - Voluntary Prepayments

VOLUNTARY PREPAYMENT RATES

GROUP 2

GROUP 1

TOTAL

SMM

1.4288%

1.0835%

1.2359%

3 Months Avg SMM

1.4361%

01.9815%

1.1936%

12 Months Avg SMM

Avg SMM Since Cut-off

1.1526%

0.7786%

01.9504%

CPR

1520.8133%

1215.1905%

1317.8548%

3 Months Avg CPR

1517.9065%

1112.2099%

1315.3613%

12 Months Avg CPR

Avg CPR Since Cut-off

1314.0109%

89.8979%

1011.7877%

PSA

~~1157~~1298.8976%

~~891~~960.0561%

~~1013~~1115.1288%

3 Months Avg PSA Approximation

~~1363~~1292.3542%

~~959~~950.0320%

~~1145~~1107.1129%

12 Months Avg PSA Approximation

Avg PSA Since Cut-off Approximation

~~1624~~1548.2866%

~~1109~~1075.1960%

~~1346~~1293.4532%

Group 1

Group 2

CPR by Groups

Total CPR

PSA by Groups

Total PSA

Page 16 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Prepayment Report for July 25, 2005 Distribution

Prepayment Report for August 25, 2005 Distribution

Prepayment Report - Voluntary Prepayments

Group 1

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.

PLEASE NOTE: Negative Amortization Amounts are included in Voluntary Partial Prepayments

Page 17 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Prepayment Detail Report for July 25, 2005 Distribution

Prepayment Detail Report for August 25, 2005 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 = 61

Loan Group 1 = Group 1

Total Original Principal Balance = 15,099,694.00

Loan Group 2 = Group 2

Total Original Principal Balance = 18,810,621.00

Loan Group 2 = Group 2

Total Prepayment Amount = 14,878,544.96

Total Prepayment Amount = 18,822,755.22

Loan Number

Original

Current

State &

Type Prepayment

Loan

Principal

Prepayment

Note

LTV at

Origination

Loan Group

Status

Balance

Amount

Date

Rate

Origination

Original Term

Date

3963219 1

205,760.00

205,736.31

Jun-30-05

5.154%

CA - 80.00%

Paid Off - 360

Nov-04-04

120114535 1

260,000.00

262,015.56

Aug-12-05

5.933%

VA - 80.00%

Paid Off - 360

Jul-26-04

120301595 1

161,250.00

162,052.53

Jul-11-05

5.854%

CA - 75.00%

Paid Off - 360

Oct-01-04

120124976 1

300,000.00

301,998.85

Jul-26-05

5.983%

CA - 75.00%

Paid Off - 360

Oct-25-04

120404295 1

210,000.00

208,138.39

Jun-27-05

5.454%

NJ - 43.75%

Paid Off - 360

Nov-17-04

120158008 1

186,900.00

187,525.24

Jul-18-05

5.683%

AZ - 79.99%

Paid Off - 360

Dec-17-04

120434374 1

240,000.00

240,857.23

Jul-08-05

5.754%

CA - 74.53%

Paid Off - 360

Nov-04-04

120181859 1

126,271.00

126,065.02

Aug-15-05

5.333%

NV - 80.00%

Paid Off - 360

Nov-09-04

120438411 1

200,000.00

200,317.83

Jul-11-05

5.454%

NJ - 80.00%

Paid Off - 360

Dec-08-04

120212767 1

80,000.00

80,172.22

Aug-03-05

5.533%

FL - 61.54%

Paid Off - 360

Dec-14-04

120476242 1

188,000.00

188,631.66

Jun-17-05

5.704%

CA - 80.00%

Paid Off - 360

Oct-28-04

120231717 1

215,000.00

216,056.63

Jul-22-05

5.833%

NJ - 72.88%

Paid Off - 360

Nov-24-04

120477968 1

172,500.00

172,947.61

Jul-12-05

5.754%

NJ - 74.35%

Paid Off - 360

Dec-20-04

120249425 1

306,500.00

307,200.83

Jul-29-05

5.383%

CA - 62.55%

Paid Off - 360

Nov-24-04

120491236 1

356,250.00

356,561.60

Jun-16-05

5.854%

NY - 75.00%

Paid Off - 360

Nov-15-04

120327322 1

84,350.00

84,352.83

Jul-19-05

5.383%

FL - 82.29%

Paid Off - 360

Nov-15-04

120499729 1

248,000.00

248,881.04

Jul-01-05

5.754%

OR - 80.00%

Paid Off - 360

Dec-02-04

120340868 1

242,000.00

243,572.40

Aug-01-05

5.983%

CA - 60.50%

Paid Off - 360

Sep-28-04

120515765 1

350,000.00

350,459.75

Jun-27-05

5.204%

MD - 71.43%

Paid Off - 360

Oct-21-04

120403548 1

243,000.00

243,134.80

Aug-10-05

5.133%

CA - 72.54%

Paid Off - 360

Nov-18-04

120518860 1

131,250.00

130,554.62

Jun-17-05

5.704%

FL - 75.00%

Paid Off - 360

Nov-24-04

120444049 1

100,000.00

96,732.61

Jul-18-05

5.283%

OH - 50.76%

Paid Off - 360

Dec-08-04

120526917 1

210,000.00

209,926.52

Jun-20-05

5.754%

CA - 70.00%

Paid Off - 360

Oct-21-04

120445172 1

150,000.00

150,198.36

Jul-29-05

5.283%

MN - 56.39%

Paid Off - 360

Nov-10-04

120538673 1

328,000.00

327,568.08

Jun-30-05

4.904%

CA - 80.00%

Paid Off - 360

Nov-12-04

120473577 1

100,000.00

100,493.50

Aug-01-05

6.183%

NJ - 62.89%

Paid Off - 360

Oct-29-04

120540137 1

150,000.00

150,851.26

Jul-12-05

6.254%

FL - 73.17%

Paid Off - 360

Nov-19-04

120488557 1

205,000.00

205,179.18

Aug-04-05

5.033%

CA - 71.93%

Paid Off - 360

Nov-01-04

120545455 1

170,000.00

170,614.48

Jun-22-05

6.254%

CA - 54.84%

Paid Off - 360

Nov-18-04

120494008 1

196,350.00

197,265.28

Aug-02-05

5.783%

TX - 56.42%

Paid Off - 360

Nov-22-04

120556773 1

224,000.00

223,587.13

Jul-01-05

5.154%

NV - 75.93%

Paid Off - 360

Dec-07-04

120494676 1

272,000.00

273,554.73

Aug-12-05

5.983%

CA - 63.26%

Paid Off - 360

Oct-19-04

120560477 1

160,000.00

160,504.23

Jun-23-05

5.654%

CA - 53.69%

Paid Off - 360

Nov-23-04

120496522 1

336,000.00

338,928.06

Aug-03-05

6.583%

NJ - 80.00%

Paid Off - 360

Nov-19-04

120564260 1

200,000.00

200,451.92

Jun-17-05

5.654%

CA - 59.70%

Paid Off - 360

Dec-01-04

120507710 1

310,000.00

311,593.88

Aug-02-05

5.883%

CA - 62.00%

Paid Off - 360

Nov-05-04

120569714 1

242,084.00

15,530.50

Jul-01-05

5.204%

SC - 80.00%

Paid Off - 360

Dec-20-04

120512811 1

142,000.00

142,212.41

Jul-18-05

5.733%

MA - 45.81%

Paid Off - 360

Dec-06-04

120579950 1

216,400.00

217,491.45

Jun-22-05

6.104%

FL - 78.69%

Paid Off - 360

Nov-05-04

120514660 1

150,000.00

148,434.92

Jul-20-05

5.483%

NJ - 51.72%

Paid Off - 360

Nov-24-04

120584090 1

210,000.00

210,008.98

Jun-17-05

5.404%

CA - 70.00%

Paid Off - 360

Nov-09-04

120517608 1

304,000.00

303,625.87

Aug-03-05

5.483%

CA - 95.00%

Paid Off - 360

Nov-03-04

120587754 1

180,800.00

180,998.60

Jun-30-05

5.354%

FL - 80.00%

Paid Off - 360

Dec-02-04

120517694 1

176,250.00

176,696.69

Aug-02-05

5.583%

WA - 75.00%

Paid Off - 360

Nov-15-04

120598062 1

265,000.00

265,853.39

Jun-17-05

5.854%

CA - 66.25%

Paid Off - 360

Nov-16-04

120527973 1

308,000.00

308,971.57

Jul-21-05

5.983%

CA - 80.00%

Paid Off - 360

Oct-18-04

120598839 1

325,000.00

324,575.90

Jul-01-05

4.904%

CA - 74.37%

Paid Off - 360

Dec-15-04

120547398 1

220,000.00

220,469.71

Aug-02-05

5.283%

FL - 80.00%

Paid Off - 360

Nov-09-04

120616128 1

90,000.00

88,094.70

Jul-11-05

6.054%

MO - 64.29%

Paid Off - 360

Nov-08-04

120547447 1

230,000.00

229,271.70

Jul-28-05

6.283%

CA - 54.12%

Paid Off - 360

Oct-26-04

120618654 1

247,000.00

248,505.76

Jun-23-05

6.354%

CA - 73.51%

Paid Off - 360

Nov-16-04

120553333 1

92,000.00

81,407.21

Jul-27-05

5.283%

AZ - 47.18%

Paid Off - 360

Nov-19-04

120630571 1

180,000.00

177,393.99

Jun-28-05

5.254%

NV - 61.86%

Paid Off - 360

Nov-24-04

120574430 1

187,500.00

187,968.72

Aug-15-05

5.533%

MD - 75.00%

Paid Off - 360

Dec-08-04

120631945 1

153,500.00

153,589.63

Jun-20-05

5.154%

VA - 64.90%

Paid Off - 360

Dec-06-04

120577116 1

76,000.00

75,911.10

Jul-26-05

6.183%

CO - 58.46%

Paid Off - 360

Nov-16-04

120646291 1

200,000.00

199,972.05

Jul-13-05

5.854%

CA - 50.00%

Paid Off - 360

Dec-06-04

120584417 1

341,600.00

344,057.15

Jul-18-05

6.283%

CA - 80.00%

Paid Off - 360

Nov-12-04

120648974 1

256,000.00

256,095.16

Jun-16-05

5.254%

MD - 80.00%

Paid Off - 360

Dec-03-04

120599134 1

244,000.00

244,650.95

Aug-10-05

5.483%

NJ - 69.71%

Paid Off - 360

Nov-23-04

120681672 1

210,000.00

210,073.93

Jun-20-05

5.554%

MA - 70.00%

Paid Off - 360

Dec-07-04

120611199 1

280,000.00

281,022.10

Jul-18-05

5.583%

WA - 80.00%

Paid Off - 360

Nov-17-04

120703256 1

281,000.00

281,352.36

Jun-29-05

5.354%

VA - 65.05%

Paid Off - 360

Dec-17-04

120618017 1

185,000.00

185,458.18

Jul-18-05

5.383%

CA - 74.00%

Paid Off - 360

Nov-15-04

120712487 1

211,800.00

211,065.56

Jul-01-05

5.154%

CO - 50.43%

Paid Off - 360

Dec-16-04

120631486 1

135,000.00

135,902.67

Aug-03-05

6.183%

RI - 60.00%

Paid Off - 360

Nov-30-04

120050763 2

650,000.00

650,366.42

Jul-05-05

5.154%

NJ - 69.52%

Paid Off - 360

Dec-10-04

120635362 1

153,200.00

153,073.19

Aug-01-05

5.483%

MO - 80.00%

Paid Off - 360

Dec-16-04

120232800 2

770,000.00

768,947.79

Jul-08-05

5.154%

CA - 66.96%

Paid Off - 360

Sep-27-04

120636983 1

209,000.00

210,397.41

Jul-21-05

6.183%

CA - 55.73%

Paid Off - 360

Nov-11-04

120440763 2

750,000.00

753,729.76

Jul-08-05

5.854%

CA - 68.18%

Paid Off - 360

Oct-14-04

120650689 1

160,000.00

159,445.91

Aug-04-05

5.183%

AZ - 88.40%

Paid Off - 360

Dec-08-04

120476516 2

387,000.00

386,281.90

Jul-07-05

5.254%

OR - 68.74%

Paid Off - 360

Dec-08-04

120666903 1

100,500.00

100,080.78

Aug-08-05

5.633%

VA - 75.00%

Paid Off - 360

Dec-15-04

120477501 2

629,600.00

628,683.06

Jun-20-05

5.154%

CA - 61.73%

Paid Off - 360

Dec-13-04

120668835 1

296,000.00

295,182.41

Aug-15-05

5.683%

NJ - 80.00%

Paid Off - 360

Dec-03-04

120545620 2

595,000.00

597,125.10

Jun-30-05

5.754%

CA - 70.00%

Paid Off - 360

Nov-02-04

120669298 1

164,000.00

164,376.36

Jul-28-05

5.433%

RI - 60.74%

Paid Off - 360

Dec-15-04

120571665 2

650,000.00

650,002.42

Jul-15-05

4.904%

CA - 56.52%

Paid Off - 360

Nov-24-04

120671233 1

276,000.00

277,797.14

Jul-22-05

6.658%

FL - 80.00%

Paid Off - 360

Dec-22-04

120594580 2

421,500.00

421,747.62

Jul-01-05

5.604%

CA - 75.00%

Paid Off - 360

Nov-19-04

120671940 1

280,000.00

280,267.27

Jul-18-05

6.383%

CA - 80.00%

Paid Off - 360

Dec-14-04

120598855 2

805,000.00

803,654.21

Jun-27-05

4.504%

NY - 40.25%

Paid Off - 360

Dec-01-04

120672317 1

230,000.00

228,647.27

Jul-20-05

4.833%

CA - 63.89%

Paid Off - 360

Dec-09-04

120600941 2

577,500.00

577,946.94

Jun-23-05

5.454%

CA - 75.00%

Paid Off - 360

Nov-17-04

120694926 1

167,000.00

167,418.30

Aug-02-05

5.483%

CA - 77.67%

Paid Off - 360

Dec-16-04

120615925 2

517,500.00

516,560.09

Jul-07-05

5.054%

CA - 75.00%

Paid Off - 360

Dec-06-04

120135452 2

480,000.00

479,914.82

Aug-09-05

5.033%

CA - 78.05%

Paid Off - 360

Nov-10-04

Page 18 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Prepayment Detail Report for July 25, 2005 Distribution

Prepayment Detail Report for August 25, 2005 Distribution

Prepayment Detail Report - Loans Prepaid in Full During Current Distribution

Loan Number

Original

Current

State &

Loan

Principal

Prepayment

Note

LTV at

Original

Origination

Loan Group

Status

Balance

Amount

Date

Rate

Origination

Term

Date

120657797 2

468,000.00

469,214.45

Jul-01-05

5.754%

CA - 80.00%

Paid Off - 360

Dec-10-04

120246589 2

640,000.00

639,255.64

Jul-28-05

4.983%

CO - 75.29%

Paid Off - 360

Jul-03-03

120673859 2

480,000.00

478,750.51

Jun-28-05

5.304%

CA - 80.00%

Paid Off - 360

Dec-21-04

120252583 2

397,500.00

399,834.52

Jul-21-05

6.133%

PA - 75.00%

Paid Off - 360

Nov-19-04

120579693 1

225,000.00

226,290.54

Jun-17-05

6.004%

FL - 75.00%

Repur/Subs - 360

Oct-01-04

120256371 2

534,300.00

534,603.28

Jul-27-05

5.233%

CA - 78.00%

Paid Off - 360

Sep-27-04

120460715 2

482,250.00

476,557.63

Aug-15-05

6.183%

MA - 75.00%

Paid Off - 360

Oct-19-04

120478008 2

840,000.00

840,945.99

Aug-01-05

5.083%

CA - 70.00%

Paid Off - 360

Nov-30-04

120511433 2

388,000.00

385,341.69

Jul-19-05

5.033%

CA - 80.00%

Paid Off - 360

Dec-15-04

120522494 2

476,600.00

475,377.69

Jul-18-05

6.183%

CA - 72.65%

Paid Off - 360

Nov-10-04

120545333 2

472,000.00

473,484.47

Aug-04-05

5.483%

CA - 80.00%

Paid Off - 360

Nov-17-04

120550862 2

379,750.00

379,202.65

Jul-28-05

5.033%

CA - 79.87%

Paid Off - 360

Dec-01-04

120555974 2

390,000.00

391,818.01

Aug-02-05

5.783%

CA - 70.91%

Paid Off - 360

Nov-12-04

120577063 2

400,000.00

396,357.21

Aug-02-05

5.883%

NJ - 80.00%

Paid Off - 360

Nov-04-04

120579029 2

612,000.00

615,782.05

Aug-01-05

6.083%

CA - 75.00%

Paid Off - 360

Nov-09-04

120589566 2

450,000.00

452,170.40

Jul-19-05

6.083%

CA - 69.23%

Paid Off - 360

Nov-16-04

120594366 2

740,800.00

742,966.78

Jul-27-05

5.583%

CA - 64.98%

Paid Off - 360

Dec-14-04

120609388 2

519,000.00

520,632.28

Aug-02-05

5.483%

CA - 75.00%

Paid Off - 360

Nov-24-04

120652011 2

538,000.00

538,952.69

Aug-05-05

5.483%

NV - 70.79%

Paid Off - 360

Dec-14-04

120594276 2

1,250,000.00

1,250,770.45

Jul-31-05

5.033%

CA - 69.44%

Repur/Subs - 360

Dec-02-04

Page 19 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Realized Loss Report for July 25, 2005 Distribution

Realized Loss Report for August 25, 2005 Distribution

Realized Loss Report - Collateral

COLLATERAL REALIZED LOSSES

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

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

3 Months Moving Average

Group 2

Collateral Loss Severity Approximation by Groups

Collateral Loss Severity Approximation

Page 20 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Realized Loss Report for July 25, 2005 Distribution

Realized Loss Report for August 25, 2005 Distribution

Realized Loss Report - Collateral

DEFAULT SPEEDS

GROUP 2

GROUP 1

TOTAL

MDR

0.00%

3 Months Avg MDR

0.00%

12 Months Avg MDR

Avg MDR Since Cut-off

0.00%

CDR

0.00%

3 Months Avg CDR

0.00%

12 Months Avg CDR

Avg CDR Since Cut-off

0.00%

SDA

0.00%

3 Months Avg SDA Approximation

0.00%

12 Months Avg SDA Approximation

Avg SDA Since Cut-off Approximation

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 2

CDR by Groups

Total CDR

SDA by Groups

Total SDA

Page 21 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Realized Loss Report for July 25, 2005 Distribution

Realized Loss Report for August 25, 2005 Distribution

Realized Loss Report - Collateral

Group 1

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 22 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Realized Loss Detail Report for July 25, 2005 Distribution

Realized Loss Detail Report for August 25, 2005 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

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

Loan Group

Status

Rate

Origination

Term

Balance

Revisions

Loss/(Gain)

SPACE INTENTIONALLY LEFT BLANK

Page 23 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Triggers, Adj. Rate Cert. and Miscellaneous Report for July 25, 2005 Distribution

Triggers, Adj. Rate Cert. and Miscellaneous Report for August 25, 2005 Distribution

Triggers, Adj. Rate Cert. and Miscellaneous Report

TRIGGER EVENTS

GROUP 2

GROUP 1

TOTAL

Has the Optional Termination Date been reached?

Have the Sr. Prepay Step Down Cond been satisfied?

Has the Sr. Credit Supp. Depletion Date been reached?

ADJUSTABLE RATE CERTIFICATE INFORMATION

GROUP 2

GROUP 1

TOTAL

Class A-X-2 PO-1 Component Principal Amount

~~847,172~~0.9200

Class A-X-2 PO-2 Component Principal Amount

~~661,866~~0.8800

Total Deferred Amount

~~1,509,039~~0.8000

ADDITIONAL INFORMATION

GROUP 2

GROUP 1

TOTAL

Current Senior Percentage

92.~~890148~~787435%

9392.~~025282~~951897%

92.~~964056~~877526%

Next Senior Percentage

74.~~541667~~445351%

92.~~951897~~855417%

86.~~599527~~519169%

Current Subordinate Percentage

7.~~109852~~212565%

67.~~974718~~048103%

7.~~035944~~122474%

Next Subordinate Percentage

25.~~458333~~554649%

7.~~048103~~144583%

13.~~400473~~480831%

Current Senior Prepayment Percentage

100.000000%

Next Projected Senior Prepayment Percentage

100.000000%

Current Subordinated Prepayment Percentage

0.000000%

Next Projected Subordinated Prepayment Percentage

0.000000%

Page 24 of 25

IndyMac INDX Mortgage Loan Trust 2005-AR2

Mortgage Pass-Through Certificates

Other Related Information for July 25, 2005 Distribution

Other Related Information for August 25, 2005 Distribution

Other Related Information

ADDITIONAL INFORMATION

GROUP 2

GROUP 1

TOTAL

Scheduled principal

1 Month Prior

1,~~840~~893.3383

2 Months Prior

31,~~386~~840.4233

3 Months Prior

13,~~847~~386.3742

4 Months Prior

31,~~412~~847.8737

5 Months Prior

93,~~340~~412.9287

6 Months Prior

~~492~~9,~~082~~340.4892

7 Months Prior

0492,082.0048

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

0.00

2 Months Prior

0.00

3 Months Prior

0.00

4 Months Prior

0.00

5 Months Prior

0.00

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 25 of 25

Filing Compare · IndyMac Indx Mortgage Loan Trust 2005-AR2