8-K 1 sam04ar1_oct.txt OCT. 8-K 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): October 19, 2004 STRUCTURED ASSET MORTGAGE INVESTMENTS II INC. Mortgage Pass-Through Certificates, Series 2004-AR1 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-106323-16 54-2144786 Pooling and Servicing Agreement) (Commission 54-2144787 (State or other File Number) 54-2144788 jurisdiction IRS EIN of Incorporation) c/o Wells Fargo Bank, N.A. 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (410) 884-2000 (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 under the Exchange Act (17 CFR 240.14a-12) [ ] 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 On October 19, 2004 a distribution was made to holders of STRUCTURED ASSET MORTGAGE INVESTMENTS II INC., Mortgage Pass-Through Certificates, Series 2004-AR1 Trust. ITEM 9.01 Financial Statements and Exhibits (c) Exhibits Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2004-AR1 Trust, relating to the October 19, 2004 distribution. 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. STRUCTURED ASSET MORTGAGE INVESTMENTS II INC. Mortgage Pass-Through Certificates, Series 2004-AR1 Trust (Registrant) By: Wells Fargo Bank, N.A. as Securities Administrator By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 10/19/04 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2004-AR1 Trust, relating to the October 19, 2004 distribution. EX-99.1

Structured Asset Mortgage Investments Inc. Mortgage Pass-Through Certificates Record Date: 89/3130/~~2004~~04 Distribution Date: 910/2019/~~2004~~04 SAM Series: 2004-AR1 Contact: Customer Service - CTSLink Wells Fargo Bank, N.A. Securities Administration Services 7485 New Horizon Way Frederick, MD 21703 Telephone: (301) 815-6600 Fax: (301) 815-6660 Certificateholder Distribution Summary Certificate Certificate Beginning Class Pass-Through Certificate Interest Principal Class CUSIP Description Rate Balance Distribution Distribution I-A-1 86359LAP4 SEN 12.~~95000~~16125% ~~474~~465,~~441~~025,~~768~~886.3802 ~~770~~837,~~967~~531.8800 98,~~415~~300,~~882~~185.3504 I-A-2 86359LAQ2 SEN 12.~~95000~~16125% 9391,~~439~~505,~~063~~906.7836 ~~151~~164,~~838~~805.4895 1,~~933~~704,~~157~~095.4367 I-A-3 86359LAR0 SEN 12.~~95000~~16125% 3,967,700.00 67,~~447~~145.5199 0.00 II-A-1 86359LAS8 SEN 3.~~37317~~37779% 8685,~~563~~722,~~268~~183.8051 ~~243~~241,~~327~~293.0014 ~~841~~1,~~085~~318,034.3025 X 86359LAT6 SEN 1.~~19390~~02644% 0.00 ~~625~~526,~~158~~870.1422 0.00 R-I 86359LAU3 RES 0.00000% 0.00 0.00 0.00 R-II 86359LAV1 RES 0.00000% 0.00 0.00 0.00 R-III 86359LAW9 RES 0.00000% 0.00 0.00 0.00 M 86359LAX7 SUB 2.~~05000~~26125% 31,361,~~171~~102.9500 5359,~~575~~096.3408 6970.9577 B-1 86359LAY5 SUB 2.~~20000~~41125% 11,473,~~479~~454.9839 2123,~~034~~054.7147 25.5989 B-2 86359LAZ2 SUB 23.~~80000~~01125% 8,413,~~911~~893.9922 1921,~~632~~113.4661 18.7799 B-3 86359LBA6 SUB 3.~~30000~~51125% 5,736,~~839~~827.9919 1516,~~776~~786.3120 12.8095 B-4 86359LBB4 SUB 3.~~20021~~23831% 2,677,~~172~~166.0002 7,~~139~~224.6058 56.9704 B-5 86359LBC2 SUB 3.~~20021~~23831% 2,294,~~676~~670.0088 6,~~119~~192.5438 5.1218 B-6 86359LBD0 SUB 3.~~20021~~23831% 4,971,~~990~~979.9990 13,~~259~~417.5235 11.0922 Totals ~~725~~713,~~341~~150,~~043~~769.8649 1,~~934~~924,~~276~~530.4997 1211,~~190~~322,~~274~~466.3700

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses I-A-1 0.00 ~~465~~456,~~025~~725,~~886~~700.0298 109,~~186~~137,~~850~~716.2304 0.00 I-A-2 0.00 9189,~~505~~801,~~906~~810.3669 21,~~084~~868,~~995~~901.9162 0.00 I-A-3 0.00 3,967,700.00 67,~~447~~145.5199 0.00 II-A-1 0.00 8584,~~722~~404,~~183~~149.5126 1,~~084~~559,~~412~~327.3039 0.00 X 0.00 0.00 ~~625~~526,~~158~~870.1422 0.00 R-I 0.00 0.00 0.00 0.00 R-II 0.00 0.00 0.00 0.00 R-III 0.00 0.00 0.00 0.00 M 0.00 31,361,~~102~~031.0022 5359,~~645~~166.2985 0.00 B-1 0.00 11,473,~~454~~428.3950 2123,~~060~~080.3036 0.00 B-2 0.00 8,413,~~893~~874.2223 1921,~~651~~132.2360 0.00 B-3 0.00 5,736,~~827~~814.1925 1516,~~789~~799.1115 0.00 B-4 0.00 2,677,~~166~~159.0298 7,~~145~~230.5762 0.00 B-5 0.00 2,294,~~670~~665.8870 6,~~124~~197.6656 0.00 B-6 0.00 4,971,~~979~~968.9068 13,~~270~~428.6157 0.00 Totals 0.00 ~~713~~701,~~150~~828,~~769~~303.49 1413,~~124~~246,~~550~~996.8697 0.00 All distributions required by the Pooling and Servicing Agreement have been calculated by the Certificate Administrator on behalf of the Trustee.

Principal Distribution Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Realized Class Amount Balance Distribution Distribution Accretion Loss (1) I-A-1 502,449,600.00 ~~474~~465,~~441~~025,~~768~~886.3802 0.00 98,~~415~~300,~~882~~185.3504 0.00 0.00 I-A-2 99,189,300.00 9391,~~439~~505,~~063~~906.7836 0.00 1,~~933~~704,~~157~~095.4367 0.00 0.00 I-A-3 3,967,700.00 3,967,700.00 0.00 0.00 0.00 0.00 II-A-1 92,375,500.00 8685,~~563~~722,~~268~~183.8051 1,~~458~~461.9783 ~~839~~1,~~626~~316,572.3342 0.00 0.00 X 0.00 0.00 0.00 0.00 0.00 0.00 R-I 50.00 0.00 0.00 0.00 0.00 0.00 R-II 50.00 0.00 0.00 0.00 0.00 0.00 R-III 50.00 0.00 0.00 0.00 0.00 0.00 M 31,361,500.00 31,361,~~171~~102.9500 6970.9577 0.00 0.00 0.00 B-1 11,473,600.00 11,473,~~479~~454.9839 25.5989 0.00 0.00 0.00 B-2 8,414,000.00 8,413,~~911~~893.9922 18.7799 0.00 0.00 0.00 B-3 5,736,900.00 5,736,~~839~~827.9919 12.8095 0.00 0.00 0.00 B-4 2,677,200.00 2,677,~~172~~166.0002 56.9704 0.00 0.00 0.00 B-5 2,294,700.00 2,294,~~676~~670.0088 5.1218 0.00 0.00 0.00 B-6 4,972,043.00 4,971,~~990~~979.9990 11.0922 0.00 0.00 0.00 Totals 764,912,193.00 ~~725~~713,~~341~~150,~~043~~769.8649 1,~~608~~612.2687 1211,~~188~~320,~~666~~853.1113 0.00 0.00 (1) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Principal Distribution Statement (continued) Total Ending Ending Total Principal Certificate Certificate Principal Class Reduction Balance Percentage Distribution I-A-1 98,~~415~~300,~~882~~185.3504 ~~465~~456,~~025~~725,~~886~~700.0298 0.~~92551748~~90899804 98,~~415~~300,~~882~~185.3504 I-A-2 1,~~933~~704,~~157~~095.4367 9189,~~505~~801,~~906~~810.3669 0.~~92253808~~90535784 1,~~933~~704,~~157~~095.4367 I-A-3 0.00 3,967,700.00 1.00000000 0.00 II-A-1 ~~841~~1,~~085~~318,034.3025 8584,~~722~~404,~~183~~149.5126 0.~~92797531~~91370709 ~~841~~1,~~085~~318,034.3025 X 0.00 0.00 0.00000000 0.00 R-I 0.00 0.00 0.00000000 0.00 R-II 0.00 0.00 0.00000000 0.00 R-III 0.00 0.00 0.00000000 0.00 M 6970.9577 31,361,~~102~~031.0022 0.~~99998731~~99998505 6970.9577 B-1 25.5989 11,473,~~454~~428.3950 0.~~99998731~~99998505 25.5989 B-2 18.7799 8,413,~~893~~874.2223 0.~~99998731~~99998505 18.7799 B-3 12.8095 5,736,~~827~~814.1925 0.~~99998731~~99998505 12.8095 B-4 56.9704 2,677,~~166~~159.0298 0.~~99998731~~99998505 56.9704 B-5 5.1218 2,294,~~670~~665.8870 0.~~99998731~~99998505 5.1218 B-6 11.0922 4,971,~~979~~968.9068 0.~~99998731~~99998505 11.0922 Totals 1211,~~190~~322,~~274~~466.3700 ~~713~~701,~~150~~828,~~769~~303.49 0.~~93233024~~91752793 1211,~~190~~322,~~274~~466.3700

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion I-A-1 502,449,600.00 ~~944~~925.~~25743076~~51747682 0.00000000 1816.~~73995392~~51943805 0.00000000 I-A-2 99,189,300.00 ~~942~~922.~~02765601~~53807981 0.00000000 1917.~~48957630~~18023688 0.00000000 I-A-3 3,967,700.00 1000.00000000 0.00000000 0.00000000 0.00000000 II-A-1 92,375,500.00 ~~937~~927.~~08038170~~97531283 0.~~01579391~~01582487 914.~~08927508~~25239831 0.00000000 X 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R-I 50.00 0.00000000 0.00000000 0.00000000 0.00000000 R-II 50.00 0.00000000 0.00000000 0.00000000 0.00000000 R-III 50.00 0.00000000 0.00000000 0.00000000 0.00000000 M 31,361,500.00 999.~~98953972~~98730928 0.~~00223044~~00225659 0.00000000 0.00000000 B-1 11,473,600.00 999.~~98953946~~98730913 0.~~00223034~~00225648 0.00000000 0.00000000 B-2 8,414,000.00 999.~~98954005~~98730925 0.~~00223081~~00225695 0.00000000 0.00000000 B-3 5,736,900.00 999.~~98953965~~98730848 0.~~00223117~~00225732 0.00000000 0.00000000 B-4 2,677,200.00 999.~~98954131~~98730763 0.~~00222994~~00225609 0.00000000 0.00000000 B-5 2,294,700.00 999.~~98954112~~98730989 0.~~00223123~~00225738 0.00000000 0.00000000 B-6 4,972,043.00 999.~~98953951~~98730904 0.~~00223047~~00225662 0.00000000 0.00000000

Principal Distribution Factors Statement (continued) Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (3) Reduction Balance Percentage Distribution I-A-1 0.00000000 1816.~~73995392~~51943805 ~~925~~908.~~51747682~~99803877 0.~~92551748~~90899804 1816.~~73995392~~51943805 I-A-2 0.00000000 1917.~~48957630~~18023688 ~~922~~905.~~53807981~~35784293 0.~~92253808~~90535784 1917.~~48957630~~18023688 I-A-3 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 II-A-1 0.00000000 914.~~10506898~~26822318 ~~927~~913.~~97531283~~70708965 0.~~92797531~~91370709 914.~~10506898~~26822318 X 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-I 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-II 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-III 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 M 0.00000000 0.~~00223044~~00225659 999.~~98730928~~98505237 0.~~99998731~~99998505 0.~~00223044~~00225659 B-1 0.00000000 0.~~00223034~~00225648 999.~~98730913~~98505264 0.~~99998731~~99998505 0.~~00223034~~00225648 B-2 0.00000000 0.~~00223081~~00225695 999.~~98730925~~98505229 0.~~99998731~~99998505 0.~~00223081~~00225695 B-3 0.00000000 0.~~00223117~~00225732 999.~~98730848~~98505290 0.~~99998731~~99998505 0.~~00223117~~00225732 B-4 0.00000000 0.~~00222994~~00225609 999.~~98730763~~98505155 0.~~99998731~~99998505 0.~~00222994~~00225609 B-5 0.00000000 0.~~00223123~~00225738 999.~~98730989~~98505251 0.~~99998731~~99998505 0.~~00223123~~00225738 B-6 0.00000000 0.~~00223047~~00225662 999.~~98730904~~98505242 0.~~99998731~~99998505 0.~~00223047~~00225662 (3) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Interest Distribution Statement Beginning Payment of Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class Amount Rate Balance Interest Shortfall Shortfall I-A-1 502,449,600.00 12.~~95000~~16125% ~~474~~465,~~441~~025,~~768~~886.3802 ~~770~~837,~~967~~531.8700 0.00 0.00 I-A-2 99,189,300.00 12.~~95000~~16125% 9391,~~439~~505,~~063~~906.7836 ~~151~~164,~~838~~805.4895 0.00 0.00 I-A-3 3,967,700.00 12.~~95000~~16125% 3,967,700.00 67,~~447~~145.5199 0.00 0.00 II-A-1 92,375,500.00 3.~~37317~~37779% 8685,~~563~~722,~~268~~183.8051 ~~243~~241,~~326~~293.9914 0.00 0.00 X 0.00 1.~~19390~~02644% ~~628~~617,~~833~~484,~~936~~769.0718 ~~625~~528,~~635~~175.1905 0.00 0.00 R-I 50.00 0.00000% 0.00 0.00 0.00 0.00 R-II 50.00 0.00000% 0.00 0.00 0.00 0.00 R-III 50.00 0.00000% 0.00 0.00 0.00 0.00 M 31,361,500.00 2.~~05000~~26125% 31,361,~~171~~102.9500 5359,~~575~~096.3408 0.00 0.00 B-1 11,473,600.00 2.~~20000~~41125% 11,473,~~479~~454.9839 2123,~~034~~054.7147 0.00 0.00 B-2 8,414,000.00 23.~~80000~~01125% 8,413,~~911~~893.9922 1921,~~632~~113.4661 0.00 0.00 B-3 5,736,900.00 3.~~30000~~51125% 5,736,~~839~~827.9919 1516,~~776~~786.3120 0.00 0.00 B-4 2,677,200.00 3.~~20021~~23831% 2,677,~~172~~166.0002 7,~~139~~224.6058 0.00 0.00 B-5 2,294,700.00 3.~~20021~~23831% 2,294,~~676~~670.0088 6,~~119~~192.5438 0.00 0.00 B-6 4,972,043.00 3.~~20021~~23831% 4,971,~~990~~979.9990 13,~~259~~417.5235 0.00 0.00 Totals 764,912,193.00 1,~~934~~925,~~753~~835.5280 0.00 0.00

Interest Distribution Statement (continued) Remaining Ending Non-Supported Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (4) Distribution Shortfall Balance I-A-1 (0.0001) 0.00 ~~770~~837,~~967~~531.8800 0.00 ~~465~~456,~~025~~725,~~886~~700.0298 I-A-2 0.00 0.00 ~~151~~164,~~838~~805.4895 0.00 9189,~~505~~801,~~906~~810.3669 I-A-3 0.00 0.00 67,~~447~~145.5199 0.00 3,967,700.00 II-A-1 0.00 0.00 ~~243~~241,~~327~~293.0014 0.00 8584,~~722~~404,~~183~~149.5126 X 0.00 0.00 ~~625~~526,~~158~~870.1422 0.00 ~~617~~607,~~484~~480,~~769~~359.1887 R-I 0.00 0.00 0.00 0.00 0.00 R-II 0.00 0.00 0.00 0.00 0.00 R-III 0.00 0.00 0.00 0.00 0.00 M 0.00 0.00 5359,~~575~~096.3408 0.00 31,361,~~102~~031.0022 B-1 0.00 0.00 2123,~~034~~054.7147 0.00 11,473,~~454~~428.3950 B-2 0.00 0.00 1921,~~632~~113.4661 0.00 8,413,~~893~~874.2223 B-3 0.00 0.00 1516,~~776~~786.3120 0.00 5,736,~~827~~814.1925 B-4 0.00 0.00 7,~~139~~224.6058 0.00 2,677,~~166~~159.0298 B-5 0.00 0.00 6,~~119~~192.5438 0.00 2,294,~~670~~665.8870 B-6 0.00 0.00 13,~~259~~417.5235 0.00 4,971,~~979~~968.9068 Totals (0.0001) 0.00 1,~~934~~924,~~276~~530.4997 0.00 (4) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Interest Distribution Factors Statement Beginning Payment of Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class (5) Amount Rate Balance Interest Shortfall Shortfall I-A-1 502,449,600.00 12.~~95000~~16125% ~~944~~925.~~25743076~~51747682 1.~~53441832~~66689555 0.00000000 0.00000000 I-A-2 99,189,300.00 12.~~95000~~16125% ~~942~~922.~~02765601~~53807981 1.~~53079495~~66152952 0.00000000 0.00000000 I-A-3 3,967,700.00 12.~~95000~~16125% 1000.00000000 1.~~62499937~~80104091 0.00000000 0.00000000 II-A-1 92,375,500.00 3.~~37317~~37779% ~~937~~927.~~08038170~~97531283 2.~~63410742~~61209022 0.00000000 0.00000000 X 0.00 1.~~19390~~02644% ~~949~~931.~~05064752~~92222367 0.~~94422303~~79713394 0.00000000 0.00000000 R-I 50.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R-II 50.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R-III 50.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 M 31,361,500.00 2.~~05000~~26125% 999.~~98953972~~98730928 1.~~70831561~~88435119 0.00000000 0.00000000 B-1 11,473,600.00 2.~~20000~~41125% 999.~~98953946~~98730913 12.~~83331387~~00934929 0.00000000 0.00000000 B-2 8,414,000.00 23.~~80000~~01125% 999.~~98954005~~98730925 2.~~33330877~~50934276 0.00000000 0.00000000 B-3 5,736,900.00 3.~~30000~~51125% 999.~~98953965~~98730848 2.~~74997124~~92600533 0.00000000 0.00000000 B-4 2,677,200.00 3.~~20021~~23831% 999.~~98954131~~98730763 2.~~66681608~~69855820 0.00000000 0.00000000 B-5 2,294,700.00 3.~~20021~~23831% 999.~~98954112~~98730989 2.~~66681483~~69855755 0.00000000 0.00000000 B-6 4,972,043.00 3.~~20021~~23831% 999.~~98953951~~98730904 2.~~66681523~~69855872 0.00000000 0.00000000 (5) Per $1 denomination.

Interest Distribution Factors Statement (continued) Remaining Ending Non-Supported Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (6) Distribution Shortfall Balance I-A-1 (0.~~00000000~~00000002) 0.00000000 1.~~53441834~~66689555 0.00000000 ~~925~~908.~~51747682~~99803877 I-A-2 0.00000000 0.00000000 1.~~53079495~~66152952 0.00000000 ~~922~~905.~~53807981~~35784293 I-A-3 0.00000000 0.00000000 1.~~62499937~~80104091 0.00000000 1000.00000000 II-A-1 0.00000000 0.00000000 2.~~63410753~~61209022 0.00000000 ~~927~~913.~~97531283~~70708965 X 0.00000000 0.00000000 0.~~94350305~~79516466 0.00000000 ~~931~~916.~~92222367~~82333891 R-I 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-II 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-III 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 M 0.00000000 0.00000000 1.~~70831561~~88435119 0.00000000 999.~~98730928~~98505237 B-1 0.00000000 0.00000000 12.~~83331387~~00934929 0.00000000 999.~~98730913~~98505264 B-2 0.00000000 0.00000000 2.~~33330877~~50934276 0.00000000 999.~~98730925~~98505229 B-3 0.00000000 0.00000000 2.~~74997124~~92600533 0.00000000 999.~~98730848~~98505290 B-4 0.00000000 0.00000000 2.~~66681608~~69855820 0.00000000 999.~~98730763~~98505155 B-5 0.00000000 0.00000000 2.~~66681483~~69855755 0.00000000 999.~~98730989~~98505251 B-6 0.00000000 0.00000000 2.~~66681523~~69855872 0.00000000 999.~~98730904~~98505242 (6) Amount Does Not Include Excess Special Hazard, Bankruptcy,or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Certificateholder Component Statement Component Beginning Ending Beginning Ending Ending Pass-Through Notional Notional Component Component Component Class Rate Balance Balance Balance Balance Percentage X 1.~~22383~~05579% ~~571,848,532.16~~ 560,499,492.38 550,495,211.67 0.00 0.00 9290.~~55174768~~89980388% X 0.~~89348~~73776% 56,985,~~403~~276.9180 56,985,~~276~~148.8020 0.00 0.00 99.~~99873092~~99850525%

CERTIFICATEHOLDER ACCOUNT STATEMENT CERTIFICATE ACCOUNT Beginning Balance 0.00 Deposits Payments of Interest and Principal 1413,~~362~~475,~~154~~224.7119 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 2122,~~150~~685.3567 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 1413,~~383~~497,~~305~~909.0686 Withdrawals Reimbursement for Servicer Advances 2521,~~140~~150.6435 Payment of Service Fee ~~233~~229,~~613~~762.5654 Payment of Interest and Principal 1413,~~124~~246,~~550~~996.8697 Total Withdrawals (Pool Distribution Amount) 1413,~~383~~497,~~305~~909.0686 Ending Balance 0.00

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall 0.00 Servicing Fee Support 0.00 Non-Supported Prepayment/Curtailment Interest Shortfall (0.0001)

SERVICING FEES Gross Servicing Fee 6968,~~357~~211.0963 Master Servicing Fee 1,~~511~~485.1273 Special Servicing Fee ~~162~~160,~~745~~065.3518 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee ~~233~~229,~~613~~762.5654

OTHER ACCOUNTS Beginning Current Current Ending Account Type Balance Withdrawals Deposits Balance Basis Risk Reserve Fund 5,000.00 ~~477~~1,304.0683 ~~477~~1,304.0683 5,000.00

LOAN STATUS STRATIFICATION/CREDIT ENHANCEMENT STATEMENT DELINQUENCY STATUS DELINQUENT BANKRUPTCY FORECLOSURE REO Total No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 01 0 0 01 0375,250.00 0.00 0.00 0375,250.00 30 Days 1922 0 0 0 1922 5,~~462~~976,~~401~~900.4007 0.00 0.00 0.00 5,~~462~~976,~~401~~900.4007 60 Days 13 0 0 0 13 ~~375~~1,~~250~~203,946.0016 0.00 0.00 0.00 ~~375~~1,~~250~~203,946.0016 90 Days 10 0 0 0 10 ~~170,200~~0.00 0.00 0.00 0.00 ~~170,200~~0.00 120 Days 0 0 1 0 0 1 0.00 ~~199,065~~0.5200 0170,200.00 0.00 ~~199~~170,~~065~~200.5200 150 Days 0 01 0 0 01 0.00 0199,065.0052 0.00 0.00 0199,065.0052 180+ Days 0 0 10 0 10 0.00 0.00 ~~680,000~~0.00 0.00 ~~680,000~~0.00 Totals 2125 12 1 0 2328 67,~~007~~180,~~851~~846.4023 ~~199~~574,~~065~~315.52 ~~680~~170,~~000~~200.00 0.00 67,~~886~~925,~~916~~361.9275 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0.~~000000~~034459% 0.000000% 0.000000% 0.~~000000~~034459% 0.~~000000~~053467% 0.000000% 0.000000% 0.~~000000~~053467% 30 Days 0.~~647359~~758098% 0.000000% 0.000000% 0.000000% 0.~~647359~~758098% 0.~~765952~~851617% 0.000000% 0.000000% 0.000000% 0.~~765952~~851617% 60 Days 0.~~034072~~103377% 0.000000% 0.000000% 0.000000% 0.~~034072~~103377% 0.~~052618~~171544% 0.000000% 0.000000% 0.000000% 0.~~052618~~171544% 90 Days 0.~~034072~~000000% 0.000000% 0.000000% 0.000000% 0.~~034072~~000000% 0.~~023866~~000000% 0.000000% 0.000000% 0.000000% 0.~~023866~~000000% 120 Days 0.000000% 0.~~034072~~000000% 0.~~000000~~034459% 0.000000% 0.~~034072~~034459% 0.000000% 0.~~027913~~000000% 0.~~000000~~024251% 0.000000% 0.~~027913~~024251% 150 Days 0.000000% 0.~~000000~~034459% 0.000000% 0.000000% 0.~~000000~~034459% 0.000000% 0.~~000000~~028364% 0.000000% 0.000000% 0.~~000000~~028364% 180+ Days 0.000000% 0.000000% 0.~~034072~~000000% 0.000000% 0.~~034072~~000000% 0.000000% 0.000000% 0.~~095351~~000000% 0.000000% 0.~~095351~~000000% Totals 0.~~715503~~861475% 0.~~034072~~068918% 0.~~034072~~034459% 0.000000% 0.~~783646~~964852% 01.~~842436~~023160% 0.~~027913~~081831% 0.~~095351~~024251% 0.000000% 01.~~965701~~129243%

Delinquency Status By Groups DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group I No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 1519 0 0 0 1519 34,~~907~~411,~~451~~250.4007 0.00 0.00 0.00 34,~~907~~411,~~451~~250.4007 60 Days 3 0 0 0 3 1,203,946.16 0.00 0.00 0.00 1,203,946.16 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 900.00 120 Days 1 0 0 1 0 1 ~~170,200~~0.00 0.00 0170,200.00 0.00 170,200.00 ~~120~~150 Days 0 1 0 0 1 0.00 199,065.52 0.00 0.00 199,065.52 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 22 1 1 0 24 5,615,196.23 199,065.52 170,200.00 0.00 5,984,461.75 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 0.775194% 0.000000% 0.000000% 0.000000% 0.775194% 0.724858% 0.000000% 0.000000% 0.000000% 0.724858% 60 Days 0.122399% 0.000000% 0.000000% 0.000000% 0.122399% 0.197833% 0.000000% 0.000000% 0.000000% 0.197833% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.040800% 0.000000% 0.040800% 0.000000% 0.000000% 0.027967% 0.000000% 0.027967% 150 Days 0.000000% 0.040800% 0.000000% 0.000000% 0.040800% 0.000000% 0.032711% 0.000000% 0.000000% 0.032711% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 0.897593% 0.040800% 0.040800% 0.000000% 0.979192% 0.922691% 0.032711% 0.027967% 0.000000% 0.983369% DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group II No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 1 0 0 1 375,250.00 0.00 0.00 375,250.00 30 Days 3 0 0 0 3 1,565,650.00 0.00 0.00 0.00 1,565,650.00 60 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 163 1 0 0 17 4 1,~~077~~565,~~651~~650.4000 ~~199~~375,~~065~~250.5200 0.00 0.00 41,~~276~~940,~~716~~900.9200 0-29 Days 0.~~000000~~221729% 0.000000% 0.000000% 0.~~000000~~221729% 0.~~000000~~402358% 0.000000% 0.000000% 0.~~000000~~402358% 30 Days 0.~~604595~~665188% 0.000000% 0.000000% 0.000000% 0.~~604595~~665188% 01.~~631690~~678752% 0.000000% 0.000000% 0.000000% 01.~~631690~~678752% 60 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 90 Days 0.~~040306~~000000% 0.000000% 0.000000% 0.000000% 0.~~040306~~000000% 0.~~027515~~000000% 0.000000% 0.000000% 0.000000% 0.~~027515~~000000% 120 Days 0.000000% 0.~~040306~~000000% 0.000000% 0.000000% 0.~~040306~~000000% 0.000000% 0.~~032181~~000000% 0.000000% 0.000000% 0.~~032181~~000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 0.~~644901~~665188% 0.~~040306~~221729% 0.000000% 0.000000% 0.~~685208~~886918% 01.~~659205~~678752% 0.~~032181~~402358% 0.000000% 0.000000% 02.~~691386~~081110%

~~DELINQUENT~~OTHER ~~BANKRUPTCY~~INFORMATION ~~FORECLOSURE~~Current ~~REO~~Period ~~Total~~Class ~~Group~~A IIInsufficient NoFunds ~~of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance~~ 0~~-29 Days 0 0 0 0 0~~.00 ~~0.00~~Principal ~~0.00~~Balance ~~0.00~~of 30Contaminated ~~Days~~Properties 4 0 ~~0 0 4 1,554,950~~.00 ~~0.00~~Periodic ~~0.00~~Advance ~~0.00 1~~22,~~554,950~~685.00 60 Days 1 0 0 0 1 375,250.00 0.00 0.00 0.00 375,250.00 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180 Days 0 0 1 0 1 0.00 0.00 680,000.00 0.00 680,000.00 Totals 5 0 1 0 6 1,930,200.00 0.00 680,000.00 0.00 2,610,200.00 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 0.881057% 0.000000% 0.000000% 0.000000% 0.881057% 1.644042% 0.000000% 0.000000% 0.000000% 1.644042% 60 Days 0.220264% 0.000000% 0.000000% 0.000000% 0.220264% 0.396750% 0.000000% 0.000000% 0.000000% 0.396750% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180 Days 0.000000% 0.000000% 0.220264% 0.000000% 0.220264% 0.000000% 0.000000% 0.718961% 0.000000% 0.718961% Totals 1.101322% 0.000000% 0.220264% 0.000000% 1.321586% 2.040792% 0.000000% 0.718961% 0.000000% 2.759753%67

~~OTHER~~COLLATERAL ~~INFORMATION~~STATEMENT ~~Current~~Collateral ~~Period~~Description ~~Class~~Mixed AARM ~~Insufficient~~Weighted ~~Funds~~Average Gross Coupon 3.624855% Weighted Average Net Coupon 3.510077% Weighted Average Pass-Through Rate 3.238240% Weighted Average Maturity(Stepdown Calculation ) 308 Beginning Scheduled Collateral Loan Count 2,935 Number Of Loans Paid In Full 33 Ending Scheduled Collateral Loan Count 2,902 Beginning Scheduled Collateral Balance 713,150,770.28 Ending Scheduled Collateral Balance 701,828,304.28 Ending Actual Collateral Balance at 30-Sep-2004 701,829,916.82 Monthly P &I Constant 2,155,836.50 Special Servicing Fee 0.00 ~~Principal~~Prepayment ~~Balance~~Penalties of0.00 ~~Contaminated~~Realized ~~Properties~~Loss Amount 0.00 ~~Periodic~~Cumulative ~~Advance~~Realized 21Loss 0.00 Ending Scheduled Balance for Premium Loans 701,~~150~~828,304.3528 Scheduled Principal 1,612.87 Unscheduled Principal 11,320,853.13

~~COLLATERAL~~Miscellaneous ~~STATEMENT~~Reporting ~~Collateral Description Mixed ARM Weighted~~ Average ~~Gross~~Loss ~~Coupon~~Severity 30.~~586545~~000000% ~~Weighted~~Senior ~~Average~~Percentage ~~Net~~- ~~Coupon~~Group 31 90.~~471801~~611924% ~~Weighted~~Senior ~~Average~~Percentage ~~Pass~~-~~Through~~ ~~Rate~~Group 32 90.~~200056~~635236% ~~Weighted~~Senior ~~Average~~Prepay ~~Maturity(Stepdown~~Percentage ~~Calculation~~- )Group ~~309~~1 ~~Beginning~~100.000000% ~~Scheduled~~Senior ~~Collateral~~Prepay ~~Loan~~Percentage ~~Count~~- ~~2,974~~Group ~~Number Of Loans Paid In Full 39 Ending Scheduled Collateral Loan Count~~ 2~~,935~~ ~~Beginning Scheduled Collateral Balance 725,341,044~~100.64000000% ~~Ending~~Subordinate ~~Scheduled~~Percentage ~~Collateral~~- ~~Balance~~Group ~~713,150,770~~1 9.28388076% ~~Ending~~Subordinate ~~Actual~~Percentage ~~Collateral Balance at 31~~-~~Aug-2004~~ ~~713,152,378.20~~Group ~~Monthly P &I Constant~~ 2~~,169,498~~ 9.31364764% ~~Special~~Subordinate ~~Servicing~~Prepay ~~Fee~~Percentage ~~0.00~~- ~~Prepayment~~Group ~~Penalties~~1 0.00000000% ~~Realized~~Subordinate ~~Loss~~Prepay ~~Amount~~Percentage ~~0.00~~- ~~Cumulative~~Group ~~Realized~~2 ~~Loss~~ 0.~~00 Ending Scheduled Balance for Premium Loans 713,150,770.28 Scheduled Principal 1,608.25 Unscheduled Principal 12,188,666.11~~000000%

~~Miscellaneous~~Group ~~Reporting~~Level Collateral Statement Group Group I Group II Total Collateral Description Mixed ARM Mixed ARM Mixed ARM Weighted Average ~~Loss~~Coupon ~~Severity~~Rate 03.~~000000%~~605047 ~~Senior~~3.754406 ~~Percentage~~3.624855 -Weighted ~~Group~~Average 1Net 90Rate 3.~~781065%~~480855 ~~Senior~~3.701199 ~~Percentage~~3.510077 -Weighted ~~Group~~Average Maturity 307 317 308 Beginning Loan Count 2,481 454 2,935 Loans Paid In Full 30 3 33 Ending Loan Count 2,451 451 2,902 Beginning Scheduled Balance 618,571,456.61 94,579,313.67 713,150,770.28 Ending scheduled Balance 608,567,175.90 93,261,128.~~717640%~~38 ~~Senior~~701,828,304.28 ~~Prepay~~Record ~~Percentage~~Date -09/30/2004 ~~Group~~09/30/2004 09/30/2004 Principal And Interest Constant 1,858,315.99 ~~100~~297,520.~~000000%~~51 ~~Senior~~2,155,836.50 ~~Prepay~~Scheduled ~~Percentage~~Principal -0.00 ~~Group~~1,612.87 1,612.87 Unscheduled Principal 10,004,280.71 1,316,572.42 11,320,853.13 Scheduled Interest 1,858,315.99 295,907.64 2,154,223.63 ~~100~~Servicing Fees 64,018.~~000000%~~07 ~~Subordinate~~4,193.56 ~~Percentage~~68,211.63 -Master ~~Group~~Servicing Fees 1,288.69 9197.~~218935%~~04 ~~Subordinate~~1,485.73 ~~Percentage~~Trustee -Fee ~~Group~~0.00 0.00 0.00 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 134,702.70 25,362.48 160,065.18 Pool Insurance Fee 0.00 0.00 0.00 Spread Fee 1 0.00 0.00 0.00 Spread Fee 2 90.~~282360%~~00 ~~Subordinate~~0.00 ~~Prepay~~0.00 ~~Percentage~~Spread -Fee ~~Group~~3 0.00 0.00 0.00 Net Interest 1,658,306.53 266,154.56 1,924,461.09 Realized Loss Amount 0.~~000000%~~00 ~~Subordinate~~0.00 ~~Prepay~~0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage -of ~~Group~~Cumulative 2Losses 0.~~000000%~~0000 0.0000 0.0000 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 3.217038 3.376906 3.238240

Group Level Collateral Statement Group Group I Group II Total Collateral Description Mixed ARM Mixed ARM Mixed ARM Weighted Average Coupon Rate 3.561683 3.750667 3.586545 Weighted Average Net Rate 3.437614 3.697483 3.471801 Weighted Average Maturity 308 318 309 Beginning Loan Count 2,517 457 2,974 Loans Paid In Full 36 3 39 Ending Loan Count 2,481 454 2,935 Beginning Scheduled Balance 629,920,496.39 95,420,548.25 725,341,044.64 Ending scheduled Balance 618,571,456.61 94,579,313.67 713,150,770.28 Record Date 08/31/2004 08/31/2004 08/31/2004 Principal And Interest Constant 1,869,647.78 299,850.53 2,169,498.31 Scheduled Principal 0.00 1,608.25 1,608.25 Unscheduled Principal 11,349,039.78 839,626.33 12,188,666.11 Scheduled Interest 1,869,647.78 298,242.28 2,167,890.06 Servicing Fees 65,128.01 4,229.08 69,357.09 Master Servicing Fees 1,312.32 198.80 1,511.12 Trustee Fee 0.00 0.00 0.00 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 137,155.51 25,589.84 162,745.35 Pool Insurance Fee 0.00 0.00 0.00 Spread Fee 1 0.00 0.00 0.00 Spread Fee 2 0.00 0.00 0.00 Spread Fee 3 0.00 0.00 0.00 Net Interest 1,666,051.94 268,224.56 1,934,276.50 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.0000 0.0000 0.0000 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 3.173833 3.373167 3.200056

Filing Compare · STRUCTURED ASSET MORTGAGE INVESTMENTS II INC SERIES 2004-AR1