8-K 1 bsa01ac1.txt MARCH 8K 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): March 25, 2002 BEAR STEARNS ASSET BACKED SECURITIES TRUST Asset Backed Certificates, Series 2001-AC1 Trust (Exact name of registrant as specified in its charter) New York (governing law 333-56242-02 Pooling and Servicing Ag (Commissio PENDING (State or other File Numbe IRS EIN jurisdiction of Incorporation) c/o Wells Fargo Bank Minnesota, N.A., 11000 Broken Land Parkway Columbia, MD 21044 (Address of principal executive (Zip Code Registrant's telephone number, including area code: Former name or former address, if changed since last ITEM 5. Other Events On March 25, 2002 a distribution was made to holders of BEAR STEARNS ASSET BACKED SECURITIES TRUST, Asset Backed Certificates, Series 2001-AC1 Trust. ITEM 7. Financial Statements and Exhibits (c) Exhibits furnished in accordance with Item 601(a) of Regulation S-K Exhibit Num Description EX 99.1 Monthly report distributed to holders of Asset Backed Certificates, Series 2001-AC1 Trust, relating to the March 25, 2002 distribution. Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused ths report to be signed on its behalf by the undersigned hereunto duly authorized. BEAR STEARNS ASSET BACKED SECURITIES TRUST Mortgage Pass-Through Certificates, Series 2001-AC1 Trust By: Wells Fargo Bank Minnesota, N.A. as Securities Administrator By: /s/ Beth Belfield, Assistant Vice President By: Beth Belfield, Assistant Vice President Date 4/2/02 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holder of Asset Backed Certificates, Series 2001-AC1 Trust, relating to the March 25, 2002 distribution. EX-99.1

Bear Stearns Asset Backed Securities ~~Trust~~Mortgage ~~Asset~~Pass-Through ~~Backed~~ Certificates Record Date: 12/3128/02 Distribution ~~Date:~~Dat 23/25/02 BSA Series: 2001-AC1 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~~Certificat Beginning Class Pass-Through Certificate Interest Principal Class CUSIP Description Rate Balance Distribution Distribution A-IO ~~07384YAS5~~07384YA IO 8.00000% 0.00 161,333.33 0.00 I-A1 ~~07384YAM8~~07384YA SEN 12.~~91000~~00000% 2927,~~608~~347,~~425~~855.4527 4842,~~697~~541.6311 23,~~260~~247,~~570~~456.1828 I-A2 ~~07384YAN6~~07384YA SEN 5.64000% 40,056,000.00 188,263.20 0.00 I-A3 ~~07384YAP1~~07384YA SEN 6.35000% 16,107,000.00 85,232.87 0.00 I-A4 ~~07384YAQ9~~07384YA SEN 6.90000% 24,405,000.00 140,328.75 0.00 I-A5 ~~07384YAW6~~07384YA SEN 7.43000% 13,250,000.00 82,039.58 0.00 II-A ~~07384YAR7~~07384YA SEN 7.00000% 8481,~~623~~625,~~409~~472.7776 ~~493~~476,~~636~~148.5559 2,~~997~~715,~~937~~076.0190 M-1 ~~07384YAT3~~07384YA SUB 6.85000% 4,841,000.00 27,634.04 0.00 M-2 ~~07384YAU0~~07384YA SUB 7.00000% 4,236,000.00 24,710.00 0.00 B ~~07384YAV8~~07384YA SUB 7.00000% 3,025,000.00 17,645.83 0.00 B-IO ~~BSA1ACBIO~~BSA1ACB IO 0.00000% 605,159.64 ~~290~~276,~~657~~402.0006 0.00 P ~~BSA01AC1P~~BSA01AC SUB 0.00000% 100.00 08,727.0080 0.00 R-1 ~~BSA01ACR1~~BSA01AC RES 0.00000% 0.00 0.00 0.00 R-2 ~~BSA01ACR2~~BSA01AC RES 0.00000% 0.00 0.00 0.00 R-3 ~~BSA01ACR3~~BSA01AC RES 0.00000% 0.00 0.00 0.00 Totals ~~220~~215,~~757~~498,~~094~~587.8667 1,~~560~~531,~~178~~007.7816 5,~~258~~962,~~507~~533.1918

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-IO 0.00 0.00 161,333.33 0.00 I-A1 0.00 2724,~~347~~100,~~855~~398.2799 23,~~309~~289,~~267~~997.8139 0.00 I-A2 0.00 40,056,000.00 188,263.20 0.00 I-A3 0.00 16,107,000.00 85,232.87 0.00 I-A4 0.00 24,405,000.00 140,328.75 0.00 I-A5 0.00 13,250,000.00 82,039.58 0.00 II-A 0.00 8178,~~625~~910,~~472~~395.7686 3,~~491~~191,~~573~~225.5649 0.00 M-1 0.00 4,841,000.00 27,634.04 0.00 M-2 0.00 4,236,000.00 24,710.00 0.00 B 0.00 3,025,000.00 17,645.83 0.00 B-IO 0.00 605,159.64 ~~290~~276,~~657~~402.0006 0.00 P 0.00 100.00 08,727.0080 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 ~~215~~209,~~498~~536,~~587~~054.6749 67,~~818~~493,~~685~~540.9734 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~~Distributio Accretion Loss (1) A-IO 0.00 0.00 0.00 0.00 0.00 0.00 I-A1 38,552,000.00 2927,~~608~~347,~~425~~855.4527 0.00 23,~~260~~247,~~570~~456.1828 0.00 0.00 I-A2 40,056,000.00 40,056,000.00 0.00 0.00 0.00 0.00 I-A3 16,107,000.00 16,107,000.00 0.00 0.00 0.00 0.00 I-A4 24,405,000.00 24,405,000.00 0.00 0.00 0.00 0.00 I-A5 13,250,000.00 13,250,000.00 0.00 0.00 0.00 0.00 II-A 97,591,000.00 8481,~~623~~625,~~409~~472.7776 0.00 2,~~997~~715,~~937~~076.0190 0.00 0.00 M-1 4,841,000.00 4,841,000.00 0.00 0.00 0.00 0.00 M-2 4,236,000.00 4,236,000.00 0.00 0.00 0.00 0.00 B 3,025,000.00 3,025,000.00 0.00 0.00 0.00 0.00 B-IO 756.67 605,159.64 0.00 0.00 0.00 0.00 P 100.00 100.00 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 242,063,856.67 ~~220~~215,~~757~~498,~~094~~587.8667 0.00 5,~~258~~962,~~507~~533.1918 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-IO 0.00 0.00 0.00000000 0.00 I-A1 23,~~260~~247,~~570~~456.1828 2724,~~347~~100,~~855~~398.2799 0.~~70937579~~62514004 23,~~260~~247,~~570~~456.1828 I-A2 0.00 40,056,000.00 1.00000000 0.00 I-A3 0.00 16,107,000.00 1.00000000 0.00 I-A4 0.00 24,405,000.00 1.00000000 0.00 I-A5 0.00 13,250,000.00 1.00000000 0.00 II-A 2,~~997~~715,~~937~~076.0190 8178,~~625~~910,~~472~~395.7686 0.~~83640369~~80858272 2,~~997~~715,~~937~~076.0190 M-1 0.00 4,841,000.00 1.00000000 0.00 M-2 0.00 4,236,000.00 1.00000000 0.00 B 0.00 3,025,000.00 1.00000000 0.00 B-IO 0.00 605,159.64 799.76692614 0.00 P 0.00 100.00 1.00000000 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 5,~~258~~962,~~507~~533.1918 ~~215~~209,~~498~~536,~~587~~054.6749 0.~~89025512~~86562305 5,~~258~~962,~~507~~533.1918

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-IO 0.00 0.00000000 0.00000000 0.00000000 0.00000000 I-A1 38,552,000.00 ~~768~~709.~~01269584~~37578517 0.00000000 5884.~~63691067~~23574082 0.00000000 I-A2 40,056,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 I-A3 16,107,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 I-A4 24,405,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 I-A5 13,250,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 II-A 97,591,000.00 ~~867~~836.~~12309301~~40369255 0.00000000 3027.~~71940046~~82097632 0.00000000 M-1 4,841,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 M-2 4,236,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 B 3,025,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 B-IO 756.67 799766.~~92613689~~926136 0.00000000 0.00000000 0.00000000 P 100.00 1000.00000000 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 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-IO 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 I-A1 0.00000000 5884.~~63691067~~23574082 ~~709~~625.~~37578517~~14004436 0.~~70937579~~62514004 5884.~~63691067~~23574082 I-A2 0.00000000 0.00000000 ~~1000~~1,000.00000000 1.00000000 0.00000000 I-A3 0.00000000 0.00000000 ~~1000~~1,000.00000000 1.00000000 0.00000000 I-A4 0.00000000 0.00000000 ~~1000~~1,000.00000000 1.00000000 0.00000000 I-A5 0.00000000 0.00000000 ~~1000~~1,000.00000000 1.00000000 0.00000000 II-A 0.00000000 3027.~~71940046~~82097632 ~~836~~808.~~40369255~~58271623 0.~~83640369~~80858272 3027.~~71940046~~82097632 M-1 0.00000000 0.00000000 ~~1000~~1,000.00000000 1.00000000 0.00000000 M-2 0.00000000 0.00000000 ~~1000~~1,000.00000000 1.00000000 0.00000000 B 0.00000000 0.00000000 ~~1000~~1,000.00000000 1.00000000 0.00000000 B-IO 0.00000000 0.00000000 ~~799766~~799,766.92613689 799.76692614 0.00000000 P 0.00000000 0.00000000 ~~1000~~1,000.00000000 1.00000000 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~~Certificat Notional Accrued Interest Interest Class Amount Rate Balance Interest Shortfall Shortfall A-IO 0.00 8.00000% 24,200,000.00 161,333.33 0.00 0.00 I-A1 38,552,000.00 12.~~91000~~00000% 0.00 4842,~~697~~541.6411 0.00 0.00 I-A2 40,056,000.00 5.64000% 0.00 188,263.20 0.00 0.00 I-A3 16,107,000.00 6.35000% 0.00 85,232.88 0.00 0.00 I-A4 24,405,000.00 6.90000% 0.00 140,328.75 0.00 0.00 I-A5 13,250,000.00 7.43000% 0.00 82,039.58 0.00 0.00 II-A 97,591,000.00 7.00000% 0.00 ~~493~~476,~~636~~148.5659 0.00 0.00 M-1 4,841,000.00 6.85000% 0.00 27,634.04 0.00 0.00 M-2 4,236,000.00 7.00000% 0.00 24,710.00 0.00 0.00 B 3,025,000.00 7.00000% 0.00 17,645.83 0.00 0.00 B-IO 756.67 0.00000% 0.00 0.00 0.00 0.00 P 100.00 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 242,063,856.67 1,~~269~~245,~~521~~877.8131 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-IO 0.00 0.00 161,333.33 0.00 24,200,000.00 I-A1 0.00 0.00 4842,~~697~~541.6311 0.00 0.00 I-A2 0.00 0.00 188,263.20 0.00 0.00 I-A3 0.00 0.00 85,232.87 0.00 0.00 I-A4 0.00 0.00 140,328.75 0.00 0.00 I-A5 0.00 0.00 82,039.58 0.00 0.00 II-A 0.00 0.00 ~~493~~476,~~636~~148.5559 0.00 0.00 M-1 0.00 0.00 27,634.04 0.00 0.00 M-2 0.00 0.00 24,710.00 0.00 0.00 B 0.00 0.00 17,645.83 0.00 0.00 B-IO 0.00 0.00 ~~290~~276,~~657~~402.0006 0.00 0.00 P 0.00 0.00 08,727.0080 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 1,~~560~~531,~~178~~007.7816 0.00 (4) Amount Does Not Include Excess Special Hazard, Bankrupcy, or Fraud Losses Unless Otherwise ~~Disclosed.~~Disclo 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-IO 0.00 8.00000% 1000.00000000 6.66666653 0.00000000 0.00000000 I-A1 38,552,000.00 12.~~91000~~00000% 0.00000000 1.~~26316767~~10347349 0.00000000 0.00000000 I-A2 40,056,000.00 5.64000% 0.00000000 4.70000000 0.00000000 0.00000000 I-A3 16,107,000.00 6.35000% 0.00000000 5.29166698 0.00000000 0.00000000 I-A4 24,405,000.00 6.90000% 0.00000000 5.75000000 0.00000000 0.00000000 I-A5 13,250,000.00 7.43000% 0.00000000 6.19166642 0.00000000 0.00000000 II-A 97,591,000.00 7.00000% 0.00000000 54.~~05821807~~87902153 0.00000000 0.00000000 M-1 4,841,000.00 6.85000% 0.00000000 5.70833299 0.00000000 0.00000000 M-2 4,236,000.00 7.00000% 0.00000000 5.83333333 0.00000000 0.00000000 B 3,025,000.00 7.00000% 0.00000000 5.83333223 0.00000000 0.00000000 B-IO 756.67 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 P 100.00 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 All denominations are per $1,000.

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-IO 0.00000000 0.00000000 6.66666653 0.00000000 1000.00000000 I-A1 0.00000000 0.00000000 1.~~26316741~~10347349 0.00000000 0.00000000 I-A2 0.00000000 0.00000000 4.70000000 0.00000000 0.00000000 I-A3 0.00000000 0.00000000 5.29166636 0.00000000 0.00000000 I-A4 0.00000000 0.00000000 5.75000000 0.00000000 0.00000000 I-A5 0.00000000 0.00000000 6.19166642 0.00000000 0.00000000 II-A 0.00000000 0.00000000 54.~~05821797~~87902153 0.00000000 0.00000000 M-1 0.00000000 0.00000000 5.70833299 0.00000000 0.00000000 M-2 0.00000000 0.00000000 5.83333333 0.00000000 0.00000000 B 0.00000000 0.00000000 5.83333223 0.00000000 0.00000000 B-IO 0.00000000 0.00000000 ~~384126~~365287.~~50164537~~456883 0.00000000 0.00000000 P 0.00000000 0.00000000 087278.~~00000000~~0000000 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~~U 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 67,~~812~~458,~~088~~509.4108 Liquidations, Insurance Proceeds, Reserve ~~Funds~~Fund 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 5278,~~588~~598.7817 Realized Losses 0.00 Prepayment Penalties 0.00 Total Deposits 67,~~864~~537,~~677~~107.1925 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee 4543,~~991~~566.2291 Payment of Interest and Principal 67,~~818~~493,~~685~~540.9734 Total Withdrawals (Pool Distribution Amount) 67,~~864~~537,~~677~~107.1925 Ending Balance 0.00

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall 01,328.0063 Servicing Fee Support 01,328.0063 Non-Supported Prepayment/Curtailment Interest Shortfall 0.00

SERVICING FEES Gross Servicing Fee 4544,~~991~~895.2254 Trustee Fee 0.00 Supported Prepayment/Curtailment Interest ~~Shortfall~~Shortfa 01,328.0063 Net Servicing Fee 4543,~~991~~566.2291

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 1 90 0 101 73226,~~245~~065.8007 ~~2,270,443~~0.5100 0.00 2226,~~343,689~~065.3107 30 Days 723 0 0 0 723 14,~~082~~548,~~092~~311.90 0.00 0.00 0.00 14,~~082~~548,~~092~~311.906 60 Days 74 0 0 0 74 1642,~~069,170~~026.5297 0.00 0.00 0.00 1642,~~069,170~~026.5297 90 Days 34 30 0 0 64 1726,~~951,314~~905.0422 ~~259,515~~0.4600 0.00 0.00 2726,~~210,829~~905.5022 120 Days 03 0 0 0 03 0629,134.0022 0.00 0.00 0.00 0629,134.0022 150 Days 06 0 0 0 06 02,779,056.00 0.00 0.00 0.00 02,779,056.006 180+ Days 04 0 0 0 04 0623,513.0039 0.00 0.00 0.00 0623,513.0039 Totals 1744 41 90 0 3045 49,~~102~~948,~~577~~948.46 ~~332~~226,~~761~~065.2607 ~~2,270,443~~0.5100 0.00 610,~~705~~175,~~782~~013.23 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.~~085763~~087796% 0.~~771870~~000000% 0.000000% 0.~~857633~~087796% 0.~~033965~~107807% 10.~~052833~~000000% 0.000000% 10.~~086798~~107807% 30 Days 02.~~600343~~019315% 0.000000% 0.000000% 0.000000% 02.~~600343~~019315% 02.~~501780~~169030% 0.000000% 0.000000% 0.000000% 02.~~501780~~169030% 60 Days 0.~~600343~~351185% 0.000000% 0.000000% 0.000000% 0.~~600343~~351185% 0.~~495788~~306174% 0.000000% 0.000000% 0.000000% 0.~~495788~~306174% 90 Days 0.~~257290~~351185% 0.~~257290~~000000% 0.000000% 0.000000% 0.~~514580~~351185% 0.~~904849~~346652% 0.~~120341~~000000% 0.000000% 0.000000% 10.~~025190~~346652% 120 Days 0.~~000000~~263389% 0.000000% 0.000000% 0.000000% 0.~~000000~~263389% 0.~~000000~~300026% 0.000000% 0.000000% 0.000000% 0.~~000000~~300026% 150 Days 0.~~000000~~526778% 0.000000% 0.000000% 0.000000% 0.~~000000~~526778% 01.~~000000~~325296% 0.000000% 0.000000% 0.000000% 01.~~000000~~325296% 180+ Days 0.~~000000~~351185% 0.000000% 0.000000% 0.000000% 0.~~000000~~351185% 0.~~000000~~297345% 0.000000% 0.000000% 0.000000% 0.~~000000~~297345% Totals 13.~~457976~~863038% 0.~~343053~~087796% 0.~~771870~~000000% 0.000000% 23.~~572899~~950834% 14.~~902417~~744523% 0.~~154306~~107807% 10.~~052833~~000000% 0.000000% 34.~~109556~~852330%

Delinquency Status By Groups

DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 1 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 70 0 81 73226,~~245~~065.8007 ~~1,243,507~~0.3000 0.00 1226,~~316,753~~065.1007 30 Days 717 0 0 0 717 12,~~082~~217,~~092~~868.9019 0.00 0.00 0.00 12,~~082~~217,~~092~~868.9019 60 Days 63 0 0 0 63 ~~674~~283,~~274~~204.6979 0.00 0.00 0.00 ~~674~~283,~~274~~204.6979 90 Days 1 3 0 0 40 983 331,~~567~~194.1066 ~~259,515~~0.4600 0.00 0.00 ~~358~~331,~~082~~194.5666 120 Days 02 0 0 0 02 0317,913.0008 0.00 0.00 0.00 0317,913.0008 150 Days 04 0 0 0 04 0566,593.0050 0.00 0.00 0.00 0566,593.0050 180 Days 04 0 0 0 04 0623,513.0039 0.00 0.00 0.00 0623,513.0039 Totals 1433 41 70 0 2534 14,~~854~~340,~~934~~287.6961 ~~332~~226,~~761~~065.2607 ~~1,243,507~~0.3000 0.00 34,~~431~~566,~~203~~352.2568 0-29 Days 0.~~104384~~106610% 0.~~730689~~000000% 0.000000% 0.~~835073~~106610% 0.~~057047~~180632% 0.~~968496~~000000% 0.000000% 10.~~025543~~180632% 30 Days 01.~~730689~~812367% 0.000000% 0.000000% 0.000000% 01.~~730689~~812367% 01.~~842780~~772140% 0.000000% 0.000000% 0.000000% 01.~~842780~~772140% 60 Days 0.~~626305~~319829% 0.000000% 0.000000% 0.000000% 0.~~626305~~319829% 0.~~525154~~226289% 0.000000% 0.000000% 0.000000% 0.~~525154~~226289% 90 Days 0.~~104384~~319829% 0.~~313152~~000000% 0.000000% 0.000000% 0.~~417537~~319829% 0.~~076768~~264634% 0.~~202122~~000000% 0.000000% 0.000000% 0.~~278890~~264634% 120 Days 0.~~000000~~213220% 0.000000% 0.000000% 0.000000% 0.~~000000~~213220% 0.~~000000~~254022% 0.000000% 0.000000% 0.000000% 0.~~000000~~254022% 150 Days 0.~~000000~~426439% 0.000000% 0.000000% 0.000000% 0.~~000000~~426439% 0.~~000000~~452724% 0.000000% 0.000000% 0.000000% 0.~~000000~~452724% 180 Days 0.~~000000~~426439% 0.000000% 0.000000% 0.000000% 0.~~000000~~426439% 0.~~000000~~498205% 0.000000% 0.000000% 0.000000% 0.~~000000~~498205% Totals 13.~~461378~~518124% 0.~~417537~~106610% 0.~~730689~~000000% 0.000000% 23.~~609603~~624733% 13.~~444701~~468013% 0.~~259169~~180632% 0.~~968496~~000000% 0.000000% 23.~~672366~~648646% DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 2 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 20 0 20 0.00 ~~1,026,936~~0.2100 0.00 ~~1,026,936~~0.2100 30 Days 06 0 0 0 06 02,330,443.0047 0.00 0.00 0.00 02,330,443.0047 60 Days 1 0 0 0 1 ~~394~~358,~~895~~822.8318 0.00 0.00 0.00 ~~394~~358,~~895~~822.8318 90 Days 21 0 0 0 2 1 395,~~852,746~~710.9456 0.00 0.00 0.00 1395,~~852,746~~710.9456 120 Days 01 0 0 0 01 0311,221.0014 0.00 0.00 0.00 0311,221.0014 150 Days 02 0 0 0 02 02,212,463.0016 0.00 0.00 0.00 02,212,463.0016 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 311 0 20 0 511 25,~~247~~608,~~642~~660.7751 0.00 ~~1,026,936~~0.2100 0.00 35,~~274~~608,~~578~~660.9851 0-29 Days 0.000000% 0.~~961538~~000000% 0.000000% 0.~~961538~~000000% 0.000000% 10.~~176936~~000000% 0.000000% 10.~~176936~~000000% 30 Days 02.~~000000~~985075% 0.000000% 0.000000% 0.000000% 02.~~000000~~985075% 02.~~000000~~756573% 0.000000% 0.000000% 0.000000% 02.~~000000~~756573% 60 Days 0.~~480769~~497512% 0.000000% 0.000000% 0.000000% 0.~~480769~~497512% 0.~~452576~~424434% 0.000000% 0.000000% 0.000000% 0.~~452576~~424434% 90 Days 0.~~961538~~497512% 0.000000% 0.000000% 0.000000% 0.~~961538~~497512% 20.~~123369~~468068% 0.000000% 0.000000% 0.000000% 20.~~123369~~468068% 120 Days 0.~~000000~~497512% 0.000000% 0.000000% 0.000000% 0.~~000000~~497512% 0.~~000000~~368129% 0.000000% 0.000000% 0.000000% 0.~~000000~~368129% 150 Days 0.~~000000~~995025% 0.000000% 0.000000% 0.000000% 0.~~000000~~995025% 02.~~000000~~617019% 0.000000% 0.000000% 0.000000% 02.~~000000~~617019% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 15.~~442308~~472637% 0.000000% 0.~~961538~~000000% 0.000000% 25.~~403846~~472637% 26.~~575945~~634223% 0.000000% 10.~~176936~~000000% 0.000000% 36.~~752881~~634223% Delinquencies are stratified according to the information provided by the ~~servicer~~servider. All 90 day delinquencies reported are actually 90+ day delinquencies.

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 5278,~~588~~598.7817

COLLATERAL STATEMENT Collateral Description Fixed 30 Year Weighted Average Gross Coupon 8.~~730881~~726785% Weighted Average Net Coupon 8.~~480881~~476785% Weighted Average Pass-Through Rate 8.~~480881~~525386% Weighted Average Maturity(Stepdown Calculation ) ~~328~~327 Beginning Scheduled Collateral Loan Count 1,~~187~~166 Number Of Loans Paid In Full 2127 Ending Scheduled Collateral Loan Count 1,~~166~~139 Beginning Scheduled Collateral Balance ~~220~~215,~~757~~498,~~094~~587.8667 Ending Scheduled Collateral Balance ~~215~~209,~~498~~536,~~587~~054.6749 Ending Actual Collateral Balance at 3128-~~Jan~~Feb-2002 ~~215~~209,~~650~~693,~~795~~326.5361 Monthly P &I Constant 1,~~755~~712,~~351~~619.0514 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Ending Scheduled Balance for Premium Loans ~~215~~209,~~498~~536,~~587~~054.6749 Scheduled Principal 0145,444.0023 Unscheduled Principal 5,~~258~~817,~~507~~088.1995 Required Overcollateralization Amount 0.00 Overcollateralized Increase Amount 0.00 Overcollateralized reduction Amount 0.00 Specified O/C Amount 605,159.64 Overcollateralized Amount 605,159.64 Overcollateralized Deficiency Amount 0.00 Base Overcollateralized Amount 0.00 Extra principal distribution Amount 0.00 Excess Cash Amount ~~290~~285,~~657~~129.0186

Miscellaneous Reporting ~~3 Month Rolling Delinquency Average 2.481074%~~

Group Level Collateral Statement Group Group 1 Group 2 Total Collateral Description Fixed 30 Year Fixed 30 Year Fixed 30 Year Weighted Average Coupon Rate 8.~~817417~~809161 8.~~605598~~605561 8.~~730881~~726785 Weighted Average Net Rate 8.~~567417~~559161 8.~~355598~~355560 8.~~480881~~476785 Weighted Average Maturity ~~322~~321 ~~336~~335 ~~328~~327 Beginning Loan Count ~~972~~958 ~~215~~208 1,~~187~~166 Loans Paid In Full 1420 7 2127 Ending Loan Count ~~958~~938 ~~208~~201 1,~~166~~139 Beginning Scheduled Balance ~~130~~128,~~569~~308,~~424~~854.9577 9087,~~187~~189,~~669~~732.9190 ~~220~~215,~~757~~498,~~094~~587.8667 Ending scheduled Balance ~~128~~125,~~308~~061,~~854~~398.7749 8784,~~189~~474,~~732~~656.9000 ~~215~~209,~~498~~536,~~587~~054.6749 Record Date 0102/3128/2002 0102/3128/2002 0102/3128/2002 Principal And Interest Constant 1,~~049~~030,~~789~~739.6705 ~~705~~681,~~561~~880.3809 1,~~755~~712,~~351~~619.0514 Scheduled Principal 9088,~~385~~827.4891 5856,~~795~~616.6932 ~~149~~145,~~181~~444.1723 Unscheduled Principal 23,~~170~~158,~~184~~628.7037 2,~~939~~658,~~141~~460.3258 5,~~109~~817,~~326~~088.0295 Scheduled Interest ~~959~~950,~~404~~638.1994 ~~646~~625,~~765~~263.6977 1,~~606~~575,~~169~~902.8871 Servicing Fees 2726,~~201~~731.9801 18,~~789~~164.1053 4544,~~991~~895.0854 Master Servicing Fees 0.00 0.00 0.00 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 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 ~~932~~923,~~202~~907.2193 ~~627~~607,~~976~~099.5924 1,~~560~~531,~~178~~007.8017 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 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 8.~~567417~~640787 8.~~355598~~355560 8.~~480881~~525386

Filing Compare · BEAR STEARNS AS BCK SEC TR 2001-AC1 AS-BCK CER SER 2001-AC1