8-K 1 arc01bc4.txt NOVEMBER 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): November 26, 2001 AMORTIZING RESIDENTIAL COLLATERAL TRUST Mortgage Pass-Through Certificates, Series 2001-BC4 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-35026-17 Pooling and Servicing Agreement) (Commission (State or other File Number) Pending jurisdiction IRS EIN of Incorporation) c/o Wells Fargo Bank Minnesota, N.A. 11000 Broken Land Parkway Columbia, MD 21044 (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) ITEM 5. Other Events On November 26, 2001 a distribution was made to holders of AMORTIZING RESIDENTIAL COLLATERAL TRUST, Mortgage Pass-Through Certificates, Series 2001-BC4 Trust. ITEM 7. Financial Statements and Exhibits (c) Exhibits furnished in accordance with Item 601(a) of Regulation S-K Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2001-BC4 Trust, relating to the November 26, 2001 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. AMORTIZING RESIDENTIAL COLLATERAL TRUST Mortgage Pass-Through Certificates, Series 2001-BC4 Trust By: Wells Fargo Bank Minnesota, NA, as Trustee By: /s/ Beth Belfield, Officer By: Beth Belfield, Officer Date: 11/30/01 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2001-BC4 Trust, relating to the November 26, 2001 distribution. EX-99.1

Amortizing Residential Collateral Mortgage Trust Mortgage Pass-Through Certificates Record Date: 910/3031/01 Distribution Date: 1011/2526/01 ARC Series: 2001-BC4 Contact: Customer Service - CTSLink Wells Fargo Bank Minnesota, 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 A-1 86358RCY1 SEQ 2.~~77125~~53000% ~~310~~308,~~987~~055,~~185~~804.1778 ~~718~~692,~~186~~783.0328 211,~~931~~976,~~380~~480.3956 A-2 86358RCZ8 SEQ 2.~~92125~~68000% 9594,~~720~~137,~~915~~027.8148 ~~233~~224,~~020~~255.6032 1,~~583~~068,~~888~~057.3398 A-IO 86358RDA2 IO 6.00000% 0.00 632,591.10 0.00 M-1 86358RDB0 SEQ 3.~~25125~~01000% 14,058,000.00 3837,~~088~~612.3996 0.00 M-2 86358RDC8 SEQ 3.~~66125~~42000% 9,372,000.00 28,~~594~~490.3688 0.00 B 86358RDD6 SEQ 4.~~56125~~32000% 5,858,000.00 22,~~266~~494.5072 0.00 X ARC01001X SEQ 0.00000% 0.00 1,~~622~~601,~~518~~965.5123 0.00 P ARC01001P SEQ 0.00000% 0.00 88256,~~144~~217.3726 0.00 R-1 ARC0101R1 RES 0.00000% 0.00 0.00 0.00 R-2 ARC0101R2 RES 0.00000% 0.00 0.00 0.00 R-3 ARC0101R3 RES 0.00000% 0.00 0.00 0.00 Totals ~~435~~431,~~996~~480,~~100~~832.9826 3,~~383~~496,~~409~~410.8675 413,~~515~~044,~~268~~538.7254

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 ~~308~~296,~~055~~079,~~804~~324.7822 312,~~649~~669,~~566~~263.4284 0.00 A-2 0.00 9493,~~137~~068,~~027~~969.4850 1,~~816~~292,~~908~~313.9330 0.00 A-IO 0.00 0.00 632,591.10 0.00 M-1 0.00 14,058,000.00 3837,~~088~~612.3996 0.00 M-2 0.00 9,372,000.00 28,~~594~~490.3688 0.00 B 0.00 5,858,000.00 22,~~266~~494.5072 0.00 X 0.00 0.00 1,~~622~~601,~~518~~965.5123 0.00 P 0.00 0.00 88256,~~144~~217.3726 0.00 R-1 0.00 0.00 0.00 0.00 R-2 0.00 0.00 0.00 0.00 R-3 0.00 0.00 0.00 0.00 Totals 0.00 ~~431~~418,~~480~~436,~~832~~293.2672 716,~~898~~540,~~678~~949.5829 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) A-1 334,986,000.00 ~~310~~308,~~987~~055,~~185~~804.1778 0.00 211,~~931~~976,~~380~~480.3956 0.00 0.00 A-2 104,312,000.00 9594,~~720~~137,~~915~~027.8148 0.00 1,~~583~~068,~~888~~057.3398 0.00 0.00 A-IO 0.00 0.00 0.00 0.00 0.00 0.00 M-1 14,058,000.00 14,058,000.00 0.00 0.00 0.00 0.00 M-2 9,372,000.00 9,372,000.00 0.00 0.00 0.00 0.00 B 5,858,000.00 5,858,000.00 0.00 0.00 0.00 0.00 X 826.33 0.00 0.00 0.00 0.00 0.00 P 0.00 0.00 0.00 0.00 0.00 0.00 R-1 0.00 0.00 0.00 0.00 0.00 0.00 R-2 0.00 0.00 0.00 0.00 0.00 0.00 R-3 0.00 0.00 0.00 0.00 0.00 0.00 Totals 468,586,826.33 ~~435~~431,~~996~~480,~~100~~832.9826 0.00 413,~~515~~044,~~268~~538.7254 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 A-1 211,~~931~~976,~~380~~480.3956 ~~308~~296,~~055~~079,~~804~~324.7822 0.~~91960800~~88385582 211,~~931~~976,~~380~~480.3956 A-2 1,~~583~~068,~~888~~057.3398 9493,~~137~~068,~~027~~969.4850 0.~~90245636~~89221729 1,~~583~~068,~~888~~057.3398 A-IO 0.00 0.00 0.00000000 0.00 M-1 0.00 14,058,000.00 1.00000000 0.00 M-2 0.00 9,372,000.00 1.00000000 0.00 B 0.00 5,858,000.00 1.00000000 0.00 X 0.00 0.00 0.00000000 0.00 P 0.00 0.00 0.00000000 0.00 R-1 0.00 0.00 0.00000000 0.00 R-2 0.00 0.00 0.00000000 0.00 R-3 0.00 0.00 0.00000000 0.00 Totals 413,~~515~~044,~~268~~538.7254 ~~431~~418,~~480~~436,~~832~~293.2672 0.~~92081298~~89297494 413,~~515~~044,~~268~~538.7254

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-1 334,986,000.00 ~~928~~919.~~35875281~~60799789 0.00000000 835.~~75075493~~75218236 0.00000000 A-2 104,312,000.00 ~~917~~902.~~64049975~~45635670 0.00000000 1510.~~18414305~~23907106 0.00000000 A-IO 0.00 0.00000000 0.00000000 0.00000000 0.00000000 M-1 14,058,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 M-2 9,372,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 B 5,858,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 X 826.33 0.00000000 0.00000000 0.00000000 0.00000000 P 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R-1 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R-3 0.00 0.00000000 0.00000000 0.00000000 0.00000000 (2) All Classes are per $1,000 denomination.

Principal Distribution Factors Statement (continued) Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (3) Reduction Balance Percentage Distribution A-1 0.00000000 835.~~75075493~~75218236 ~~919~~883.~~60799789~~85581553 0.~~91960800~~88385582 835.~~75075493~~75218236 A-2 0.00000000 1510.~~18414305~~23907106 ~~902~~892.~~45635670~~21728564 0.~~90245636~~89221729 1510.~~18414305~~23907106 A-IO 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 M-1 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 M-2 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 B 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 X 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 P 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-3 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 (3) Amount Does Not Include Excess Special Hazard, Bankrupcy, 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 A-1 334,986,000.00 2.~~77125~~53000% ~~310~~308,~~987~~055,~~185~~804.1778 ~~718~~692,~~186~~783.0328 0.00 0.00 A-2 104,312,000.00 2.~~92125~~68000% 9594,~~720~~137,~~915~~027.8148 ~~233~~224,~~020~~255.6032 0.00 0.00 A-IO 0.00 6.00000% 126,518,220.00 632,591.10 0.00 0.00 M-1 14,058,000.00 3.~~25125~~01000% 14,058,000.00 3837,~~088~~612.3996 0.00 0.00 M-2 9,372,000.00 3.~~66125~~42000% 9,372,000.00 28,~~594~~490.3688 0.00 0.00 B 5,858,000.00 4.~~56125~~32000% 5,858,000.00 22,~~266~~494.5072 0.00 0.00 X 826.33 0.00000% 0.00 0.00 0.00 0.00 P 0.00 0.00000% 0.00 0.00 0.00 0.00 R-1 0.00 0.00000% 0.00 0.00 0.00 0.00 R-2 0.00 0.00000% 0.00 0.00 0.00 0.00 R-3 0.00 0.00000% 0.00 0.00 0.00 0.00 Totals 468,586,826.33 1,~~672~~638,~~746~~228.9826 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 A-1 0.00 0.00 ~~718~~692,~~186~~783.0328 0.00 ~~308~~296,~~055~~079,~~804~~324.7822 A-2 0.00 0.00 ~~233~~224,~~020~~255.6032 0.00 9493,~~137~~068,~~027~~969.4850 A-IO 0.00 0.00 632,591.10 0.00 ~~126~~112,~~518~~460,~~220~~640.00 M-1 0.00 0.00 3837,~~088~~612.3996 0.00 14,058,000.00 M-2 0.00 0.00 28,~~594~~490.3688 0.00 9,372,000.00 B 0.00 0.00 22,~~266~~494.5072 0.00 5,858,000.00 X 0.00 0.00 1,~~622~~601,~~518~~965.5123 0.00 0.00 P 0.00 0.00 88256,~~144~~217.3726 0.00 0.00 R-1 0.00 0.00 0.00 0.00 0.00 R-2 0.00 0.00 0.00 0.00 0.00 R-3 0.00 0.00 0.00 0.00 0.00 Totals 0.00 0.00 3,~~383~~496,~~409~~410.8675 0.00 (4) Amount Does Not Include Excess Special Hazard, Bankrupcy, 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 A-1 334,986,000.00 2.~~77125~~53000% ~~928~~919.~~35875281~~60799789 2.~~14392849~~06809622 0.00000000 0.00000000 A-2 104,312,000.00 2.~~92125~~68000% ~~917~~902.~~64049975~~45635670 2.~~23388105~~14985160 0.00000000 0.00000000 A-IO 0.00 6.00000% 1000.00000000 5.00000000 0.00000000 0.00000000 M-1 14,058,000.00 3.~~25125~~01000% 1000.00000000 2.~~70937473~~67555556 0.00000000 0.00000000 M-2 9,372,000.00 3.~~66125~~42000% 1000.00000000 3.~~05104140~~04000000 0.00000000 0.00000000 B 5,858,000.00 4.~~56125~~32000% 1000.00000000 3.~~80104131~~84000000 0.00000000 0.00000000 X 826.33 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 P 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R-1 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R-3 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 (5) All Classes are per $1,000 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 A-1 0.00000000 0.00000000 2.~~14392849~~06809622 0.00000000 ~~919~~883.~~60799789~~85581553 A-2 0.00000000 0.00000000 2.~~23388105~~14985160 0.00000000 ~~902~~892.~~45635670~~21728564 A-IO 0.00000000 0.00000000 5.00000000 0.00000000 ~~1000~~888.~~00000000~~88888889 M-1 0.00000000 0.00000000 2.~~70937473~~67555556 0.00000000 1000.00000000 M-2 0.00000000 0.00000000 3.~~05104140~~04000000 0.00000000 1000.00000000 B 0.00000000 0.00000000 3.~~80104131~~84000000 0.00000000 1000.00000000 X 0.00000000 0.00000000 ~~1963523~~1938650.~~66487965~~69645299 0.00000000 0.00000000 P 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-3 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 (6) Amount Does Not Include Excess Special Hazard, Bankrupcy,or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

CERTIFICATEHOLDER ACCOUNT STATEMENT CERTIFICATE ACCOUNT Beginning Balance 0.00 Deposits Payments of Interest and Principal 816,~~369~~858,~~958~~519.6748 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 0.00 Realized Losses 0(19,444.0080) Prepayment Penalties 88256,~~144~~217.3726 Total Deposits 817,~~458~~095,~~103~~291.0494 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee ~~559~~554,~~424~~342.4665 Payment of Interest and Principal 716,~~898~~540,~~678~~949.5829 Total Withdrawals (Pool Distribution Amount) 817,~~458~~095,~~103~~291.0494 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee ~~181~~179,~~665~~783.1743 Guarantee Fee 23,~~324~~874.0432 Loss Mitigation Advisors Fee 5,~~449~~393.9551 MGIC Insurance Premiums ~~348~~344,~~076~~392.9945 ~~Special Servicing Fee 0.00~~ Wells Fargo Bank, N.A. ~~908~~898.3194 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee ~~559~~554,~~424~~342.4665

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 2217 0 0 2217 21,~~324~~948,~~902~~404.1185 0.00 0.00 21,~~324~~948,~~902~~404.1185 30 Days ~~102~~181 37 0 0 ~~105~~188 1221,~~259~~648,~~533~~556.3340 ~~207~~591,~~962~~421.2692 0.00 0.00 1222,~~467~~239,~~495~~978.5932 60 Days 5542 4 5 2 0 6251 75,~~384~~345,~~713~~853.5738 ~~633~~368,~~227~~230.2841 ~~216~~537,~~011~~303.7525 0.00 86,~~233~~251,~~952~~387.6004 90 Days 269 226 ~~122~~29 40 ~~174~~44 21,~~904~~601,~~815~~242.1221 2823,~~669,020~~848.6452 113,~~804~~381,~~376~~055.7071 ~~515,938~~0.2300 175,~~894~~806,~~150~~146.6944 120 Days 05 06 036 02 049 0573,528.0041 0511,654.0022 03,352,745.0029 0110,457.0088 04,548,385.0080 150 Days 02 06 032 01 041 0188,736.0002 0795,470.0027 02,934,555.0059 083,736.0025 04,002,498.0013 180+ Days 03 011 037 06 057 0679,263.0053 01,594,208.0058 03,488,654.0087 0370,116.0092 06,132,243.0090 Totals ~~183~~242 5257 ~~124~~139 49 ~~363~~447 2230,~~549~~037,~~062~~179.0295 56,~~835~~633,~~112~~238.2977 1213,~~020~~694,~~388~~314.4571 ~~515~~564,~~938~~311.2305 4050,~~920~~929,~~500~~044.9948 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.~~661654~~527132% 0.000000% 0.000000% 0.~~661654~~527132% 0.~~538819~~465640% 0.000000% 0.000000% 0.~~538819~~465640% 30 Days 35.~~067669~~612403% 0.~~090226~~217054% 0.000000% 0.000000% 35.~~157895~~829457% 25.~~841270~~173680% 0.~~048197~~141341% 0.000000% 0.000000% 25.~~889467~~315021% 60 Days 1.~~654135~~302326% 0.~~150376~~124031% 0.~~060150~~155039% 0.000000% 1.~~864662~~581395% 1.~~711481~~277579% 0.~~146757~~088002% 0.~~050063~~128407% 0.000000% 1.~~908301~~493988% 90 Days 0.~~781955~~279070% 0.~~661654~~186047% 30.~~669173~~899225% 0.~~120301~~000000% 51.~~233083~~364341% 0.~~673220~~382673% 0.~~618572~~196887% 20.~~735782~~808022% 0.~~119574~~000000% 41.~~147148~~387582% 120 Days 0.~~000000~~155039% 0.~~000000~~186047% 01.~~000000~~116279% 0.~~000000~~062016% 01.~~000000~~519380% 0.~~000000~~137065% 0.~~000000~~122278% 0.~~000000~~801256% 0.~~000000~~026398% 01.~~000000~~086996% 150 Days 0.~~000000~~062016% 0.~~000000~~186047% 0.~~000000~~992248% 0.~~000000~~031008% 01.~~000000~~271318% 0.~~000000~~045105% 0.~~000000~~190105% 0.~~000000~~701315% 0.~~000000~~020012% 0.~~000000~~956537% 180+ Days 0.~~000000~~093023% 0.~~000000~~341085% 01.~~000000~~147287% 0.~~000000~~186047% 01.~~000000~~767442% 0.~~000000~~162334% 0.~~000000~~380992% 0.~~000000~~833736% 0.~~000000~~088452% 01.~~000000~~465514% Totals 57.~~503759~~503876% 1.~~563910~~767442% 34.~~729323~~310078% 0.~~120301~~279070% 1013.~~917293~~860465% 57.~~225971~~178436% 1.~~352346~~585245% 23.~~785845~~272736% 0.~~119574~~134862% 912.~~483736~~171278% ~~7) Delinquencies include wrapped and unwrapped loans.~~

COLLATERAL STATEMENT Collateral Description Fixed & Mixed ARM Weighted Average Gross Coupon 10.~~609333~~607140% Weighted Average Net Coupon 9.~~151314~~149343% Weighted Average Pass-Through Rate 9.~~148814~~146843% Weighted Average Maturity(Stepdown Calculation ) ~~349~~348 Beginning Scheduled Collateral Loan Count 3,~~355~~325 Number Of Loans Paid In Full 30100 Ending Scheduled Collateral Loan Count 3,~~325~~225 Beginning Scheduled Collateral Balance ~~435~~431,~~996~~480,~~100~~832.9826 Ending Scheduled Collateral Balance ~~431~~418,~~480~~436,~~832~~293.2672 Ending Actual Collateral Balance at 3031-~~Sep~~Oct-2001 ~~431~~418,~~480~~436,~~832~~293.2672 Monthly P &I Constant 4,~~052~~011,~~302~~704.1395 Special Servicing Fee 0.00 Prepayment Penalties 88256,~~144~~217.3726 Realized Loss Amount 019,444.0080 Cumulative Realized Loss 019,444.0080 Ending Scheduled Balance for Premium Loans ~~431~~418,~~480~~436,~~832~~293.2672 Scheduled Principal 197,~~612~~723.2479 Unscheduled Principal 412,~~317~~846,~~656~~814.4875 Extra principal distribution Amount 0.00 Excess Cash Amount 1,~~645~~625,~~842~~839.55

Cumulative Guarantee Fee $~~104~~128,~~375~~249.5890

Group Level Collateral Statement Group 1 2 3 Collateral Description Fixed 15/30 & ARM Fixed 15/30 & ARM Fixed 15/30 & ARM Weighted Average Coupon Rate 11.~~313983~~303102 10.~~730904~~732304 10.~~370069~~287917 Weighted Average Net Rate 9.~~901485~~891204 9.~~270236~~271173 98.~~040456~~983334 Weighted Average Maturity ~~347~~346 ~~347~~346 ~~349~~348 Beginning Loan Count ~~330~~327 2,~~687~~664 3635 Loans Paid In Full 38 2387 10 Ending Loan Count ~~327~~319 2,~~664~~577 35 Beginning Scheduled Balance 2625,~~182~~933,~~722~~762.1460 ~~307~~304,~~138~~455,~~159~~738.4055 65,~~211~~859,~~995~~644.0535 Ending ~~Scheduled~~scheduled Balance 2524,~~933~~965,~~762~~726.6022 ~~304~~293,~~455~~447,~~738~~294.5537 5,~~859~~856,~~644~~667.3556 Record Date 0910/3031/2001 0910/3031/2001 0910/3031/2001 Principal And Interest Constant ~~261~~259,~~827~~303.4146 2,~~879~~855,~~187~~791.2367 5653,~~679~~146.4349 Scheduled Principal 1415,~~968~~026.3483 132,~~628~~865.9330 2,~~997~~910.0821 Unscheduled Principal ~~233~~953,~~991~~009.2055 210,~~549~~875,~~791~~578.9288 ~~349,353~~66.6258 Scheduled Interest ~~246~~244,~~859~~276.0763 2,~~746~~722,~~558~~926.3037 5350,~~682~~236.3528 Servicing Fees 30,~~819~~513.2119 ~~373~~370,~~855~~708.6030 6,~~882~~370.9633 Master Servicing Fees 0.00 0.00 0.00 Trustee Fee 54.5605 ~~639~~634.8528 12.9320 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 0.00 0.00 0.00 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 ~~215~~213,~~985~~709.3039 2,~~372~~351,~~062~~583.8579 4643,~~786~~853.4675 Realized Loss Amount 0.00 019,444.0080 0.00 Cumulative Realized Loss 0.00 019,444.0080 0.00 Percentage of Cumulative Losses 0.00 0.00 0.00 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 9.~~898985~~888703 9.~~267736~~268673 98.~~037952~~980832

Group Level Collateral Statement Group 4 Total ~~Group~~Collateral Description Fixed 15/30 & ARM Fixed & Mixed ARM ~~Collateral Description 10.046401 10.609333~~ Weighted Average Coupon Rate 810.~~576191~~037103 910.~~151314~~607140 Weighted Average Net Rate ~~349~~8.568042 ~~349~~9.149343 Weighted Average Maturity ~~302~~348 ~~3,355~~348 Beginning Loan Count 299 3,325 30 Loans Paid In Full ~~299~~5 ~~3,325~~100 Ending Loan Count ~~96,463,224.39~~294 ~~435~~3,~~996,100.98~~225 Beginning Scheduled Balance 95,231,686.76 431,480,832.26 Ending ~~Scheduled~~scheduled Balance 0994,166,605.57 418,436,293.72 Record Date 10/3031/2001 0910/3031/2001 ~~Record~~Principal ~~Date~~And ~~854~~Interest Constant 843,~~608~~463.0633 4,~~052~~011,~~302~~704.1395 Scheduled Principal ~~And Interest Constant 47~~46,~~017~~921.8945 197,~~612~~723.2479 ~~Scheduled~~Unscheduled Principal 1,~~184~~018,~~519~~159.74 412,~~317~~846,~~656~~814.4875 ~~Unscheduled~~Scheduled ~~Principal~~Interest ~~807~~796,~~590~~541.1788 3,~~854~~813,~~689~~981.8916 ~~Scheduled~~Servicing ~~Interest~~Fees ~~118~~116,~~184~~584.3028 ~~529~~524,~~742~~176.0710 Master Servicing Fees 0.00 0.00 ~~Master~~Trustee ~~Servicing~~Fee ~~Fees 200~~198.9741 ~~908~~898.3194 ~~Trustee~~FRY ~~FeeFRY~~ Amount 0.00 0.00 Special Hazard Fee 0.00 0.00 Other Fee 0.00 0.00 Pool Insurance Fee 0.00 0.00 Spread Fee 1 0.00 0.00 Spread Fee 2 0.00 0.00 Spread Fee 3 0.00 0.00 Net Interest ~~689~~679,~~204~~759.9019 3,~~324~~288,~~039~~906.5112 Realized Loss Amount 0.00 019,444.0080 Cumulative Realized Loss 0.00 019,444.0080 Percentage of Cumulative Losses 0.00 0.00 Prepayment Penalties 0.00 0.00 Special Servicing Fee 0.00 0.00 Pass-Through Rate 8.~~573691~~565542 9.~~148814~~146843

Filing Compare · STRUCTURED ASSET SECURITIES CORP MOR PAS THR CER SR 2001-BC4