8-K 1 opt03001.txt MAY 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): May 27, 2003 OPTION ONE MORTGAGE ACCEPTANCE CORPORATION Asset-Backed Certificates, Series 2003-1 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-82832-06 54-2090852 Pooling and Servicing Agreement) (Commission 54-2090853 (State or other File Number) 54-2090854 jurisdiction IRS EIN of Incorporation) c/o Wells Fargo Bank Minnesota, 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) ITEM 5. Other Events On May 27, 2003 a distribution was made to holders of OPTION ONE MORTGAGE ACCEPTANCE CORPORATION, Asset-Backed Certificates, Series 2003-1 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 Asset-Backed Certificates, Series 2003-1 Trust, relating to the May 27, 2003 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. OPTION ONE MORTGAGE ACCEPTANCE CORPORATION Asset-Backed Certificates, Series 2003-1 Trust By: Wells Fargo Bank Minnesota, N.A., as Trustee By: /s/ Beth Belfield, Assistant Vice President By: Beth Belfield, Assistant Vice President Date: 5/28/03 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Asset- Backed Certificates, Series 2003-1 Trust, relating to the May 27, 2003 distribution.

Option One Mortgage Loan Trust Asset-Backed Certificates Record Date: 24/2830/03 Distribution Date: 35/2527/03 OOMC Series: 2003-1 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 68389FCZ5 SEN 1.~~75625~~74000% ~~497~~490,~~802~~608,~~620~~557.4157 ~~679~~758,~~984~~807.5590 45,~~271~~966,~~178~~207.2448 A-2 68389FDA9 SEN 1.~~75625~~74000% ~~905~~891,~~780~~934,~~491~~363.6362 1,~~237~~379,~~270~~525.9915 58,~~528~~997,~~587~~838.5022 M-1 68389FDB7 MEZ 2.~~23625~~22000% 72,000,000.00 ~~125~~142,~~230~~080.00 0.00 M-2 68389FDC5 MEZ 3.~~28625~~27000% 60,000,000.00 ~~153~~174,~~358~~400.3300 0.00 M-3 68389FDD3 MEZ 4.~~83625~~82000% 36,000,000.00 ~~135~~154,~~415~~240.00 0.00 M-4 68389FDE1 MEZ 5.~~58625~~57000% 16,000,000.00 6979,~~517~~217.78 0.00 C OPT03001C OC 0.00000% 8,000,000.00 6,~~705~~300,~~533~~668.6588 0.00 P OPT03001P Pre_Pa 0.00000% 100.00 81262,~~164~~561.1670 0.00 R-1 OPT0301R1 RES 0.00000% 0.00 0.00 0.00 R-2 OPT0301R2 RES 0.00000% 0.00 0.00 0.00 R-3 OPT0301R3 RES 0.00000% 0.00 0.00 0.00 Totals 1,~~595~~574,~~583~~543,~~212~~021.0419 9,~~187~~251,~~474~~501.4641 914,~~799~~964,~~765~~045.7470

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 ~~493~~484,~~531~~642,~~442~~350.1709 46,~~951~~725,~~162~~015.7938 0.00 A-2 0.00 ~~900~~882,~~251~~936,~~904~~525.1340 610,~~765~~377,~~858~~363.4937 0.00 M-1 0.00 72,000,000.00 ~~125~~142,~~230~~080.00 0.00 M-2 0.00 60,000,000.00 ~~153~~174,~~358~~400.3300 0.00 M-3 0.00 36,000,000.00 ~~135~~154,~~415~~240.00 0.00 M-4 0.00 16,000,000.00 6979,~~517~~217.78 0.00 C 0.00 8,000,000.00 6,~~705~~300,~~533~~668.6588 0.00 P 0.00 100.00 81262,~~164~~561.1670 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 1,~~585~~559,~~783~~578,~~446~~975.3049 1824,~~987~~215,~~240~~547.2011 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-1 500,000,000.00 ~~497~~490,~~802~~608,~~620~~557.4157 0.00 45,~~271~~966,~~178~~207.2448 0.00 0.00 A-2 908,000,000.00 ~~905~~891,~~780~~934,~~491~~363.6362 0.00 58,~~528~~997,~~587~~838.5022 0.00 0.00 M-1 72,000,000.00 72,000,000.00 0.00 0.00 0.00 0.00 M-2 60,000,000.00 60,000,000.00 0.00 0.00 0.00 0.00 M-3 36,000,000.00 36,000,000.00 0.00 0.00 0.00 0.00 M-4 16,000,000.00 16,000,000.00 0.00 0.00 0.00 0.00 C 7,999,900.00 8,000,000.00 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 1,600,000,000.00 1,~~595~~574,~~583~~543,~~212~~021.0419 0.00 914,~~799~~964,~~765~~045.7470 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 45,~~271~~966,~~178~~207.2448 ~~493~~484,~~531~~642,~~442~~350.1709 0.~~98706288~~96928470 45,~~271~~966,~~178~~207.2448 A-2 58,~~528~~997,~~587~~838.5022 ~~900~~882,~~251~~936,~~904~~525.1340 0.~~99146685~~97239705 58,~~528~~997,~~587~~838.5022 M-1 0.00 72,000,000.00 1.00000000 0.00 M-2 0.00 60,000,000.00 1.00000000 0.00 M-3 0.00 36,000,000.00 1.00000000 0.00 M-4 0.00 16,000,000.00 1.00000000 0.00 C 0.00 8,000,000.00 1.00001250 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 914,~~799~~964,~~765~~045.7470 1,~~585~~559,~~783~~578,~~446~~975.3049 0.~~99111465~~97473686 914,~~799~~964,~~765~~045.7470

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-1 500,000,000.00 ~~995~~981.~~60524082~~21711514 0.00000000 811.~~54235648~~93241496 0.00000000 A-2 908,000,000.00 ~~997~~982.~~55560752~~30656786 0.00000000 69.~~08875275~~90951346 0.00000000 M-1 72,000,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 M-2 60,000,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 M-3 36,000,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 M-4 16,000,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 C 7,999,900.00 1000.01250016 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 (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 811.~~54235648~~93241496 ~~987~~969.~~06288434~~28470018 0.~~98706288~~96928470 811.~~54235648~~93241496 A-2 0.00000000 69.~~08875275~~90951346 ~~991~~972.~~46685477~~39705441 0.~~99146685~~97239705 69.~~08875275~~90951346 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 M-3 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 M-4 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 C 0.00000000 0.00000000 1,000.01250016 1.00001250 0.00000000 P 0.00000000 0.00000000 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 Notional Accrued Interest Interest Class Amount Rate Balance Interest Shortfall Shortfall A-1 500,000,000.00 1.~~75625~~74000% ~~497~~490,~~802~~608,~~620~~557.4157 ~~679~~758,~~984~~807.5590 0.00 0.00 A-2 908,000,000.00 1.~~75625~~74000% ~~905~~891,~~780~~934,~~491~~363.6362 1,~~237~~379,~~270~~525.9915 0.00 0.00 M-1 72,000,000.00 2.~~23625~~22000% 72,000,000.00 ~~125~~142,~~230~~080.00 0.00 0.00 M-2 60,000,000.00 3.~~28625~~27000% 60,000,000.00 ~~153~~174,~~358~~400.3300 0.00 0.00 M-3 36,000,000.00 4.~~83625~~82000% 36,000,000.00 ~~135~~154,~~415~~240.00 0.00 0.00 M-4 16,000,000.00 5.~~58625~~57000% 16,000,000.00 6979,~~517~~217.78 0.00 0.00 C 7,999,900.00 0.00000% 8,000,000.00 0.00 0.00 0.00 P 100.00 0.00000% 100.00 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 1,600,000,000.00 2,~~400~~688,~~776~~270.6583 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 ~~679~~758,~~984~~807.5590 0.00 ~~493~~484,~~531~~642,~~442~~350.1709 A-2 0.00 0.00 1,~~237~~379,~~270~~525.9915 0.00 ~~900~~882,~~251~~936,~~904~~525.1340 M-1 0.00 0.00 ~~125~~142,~~230~~080.00 0.00 72,000,000.00 M-2 0.00 0.00 ~~153~~174,~~358~~400.3300 0.00 60,000,000.00 M-3 0.00 0.00 ~~135~~154,~~415~~240.00 0.00 36,000,000.00 M-4 0.00 0.00 6979,~~517~~217.78 0.00 16,000,000.00 C 0.00 0.00 6,~~705~~300,~~533~~668.6588 0.00 8,000,000.00 P 0.00 0.00 81262,~~164~~561.1670 0.00 100.00 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 9,~~187~~251,~~474~~501.4641 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-1 500,000,000.00 1.~~75625~~74000% ~~995~~981.~~60524082~~21711514 1.~~35996910~~51761580 0.00000000 0.00000000 A-2 908,000,000.00 1.~~75625~~74000% ~~997~~982.~~55560752~~30656786 1.~~36263325~~51930083 0.00000000 0.00000000 M-1 72,000,000.00 2.~~23625~~22000% 1000.00000000 1.~~73930556~~97333333 0.00000000 0.00000000 M-2 60,000,000.00 3.~~28625~~27000% 1000.00000000 2.~~55597217~~90666667 0.00000000 0.00000000 M-3 36,000,000.00 4.~~83625~~82000% 1000.00000000 34.~~76152778~~28444444 0.00000000 0.00000000 M-4 16,000,000.00 5.~~58625~~57000% 1000.00000000 4.~~34486125~~95111125 0.00000000 0.00000000 C 7,999,900.00 0.00000% 1000.01250016 0.00000000 0.00000000 0.00000000 P 100.00 0.00000% 1000.00000000 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 1.~~35996910~~51761580 0.00000000 ~~987~~969.~~06288434~~28470018 A-2 0.00000000 0.00000000 1.~~36263325~~51930083 0.00000000 ~~991~~972.~~46685477~~39705441 M-1 0.00000000 0.00000000 1.~~73930556~~97333333 0.00000000 1000.00000000 M-2 0.00000000 0.00000000 2.~~55597217~~90666667 0.00000000 1000.00000000 M-3 0.00000000 0.00000000 34.~~76152778~~28444444 0.00000000 1000.00000000 M-4 0.00000000 0.00000000 4.~~34486125~~95111125 0.00000000 1000.00000000 C 0.00000000 0.00000000 ~~838~~787.~~20218378~~59345492 0.00000000 1000.01250016 P 0.00000000 0.00000000 ~~811641~~2625617.~~60000000~~00000000 0.00000000 1000.00000000 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 1825,~~531~~365,~~264~~370.2059 Liquidations, Insurance Proceeds, Reserve Funds ~~1,803,461~~0.4367 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 0.00 Realized Losses 0.00 Prepayment Penalties 81262,~~164~~561.1670 Total Deposits 2025,~~415~~627,~~889~~932.7996 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee 1,~~428~~412,~~649~~385.5985 Payment of Interest and Principal 1824,~~987~~215,~~240~~547.2011 Total Withdrawals (Pool Distribution Amount) 2025,~~415~~627,~~889~~932.7996 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee ~~398~~393,~~447~~635.2729 Radian PMI Policy Fee 1,~~026~~014,~~213~~812.3760 Wells Fargo 3,~~988~~937.9596 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee 1,~~428~~412,~~649~~385.5985

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 214 0 0 214 ~~122~~1,~~463~~718,849.4356 0.00 0.00 ~~122~~1,~~463~~718,849.4356 30 Days 5194 02 142 0 6598 712,~~098~~184,~~817~~780.7992 0130,299.0099 1284,~~881,750~~675.00 0.00 812,~~980~~599,~~567~~755.7991 60 Days 79 1 428 0 1238 12,~~199~~571,~~779~~522.8610 ~~180~~179,~~000~~785.0059 ~~622~~3,~~279~~631,674.8617 0.00 26,~~002~~382,~~059~~981.7286 90 Days 0 04 027 0 031 0.00 0384,875.0061 03,679,590.0086 0.00 04,064,466.0047 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 58103 321 1857 0 79181 814,~~298~~756,~~597~~303.6502 ~~302~~2,~~463~~413,810.4375 27,~~504~~595,~~029~~940.8603 0.00 1124,~~105~~766,~~090~~053.9480 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.~~020517~~145439% 0.000000% 0.000000% 0.~~020517~~145439% 0.~~007721~~110192% 0.000000% 0.000000% 0.~~007721~~110192% 30 Days 0.~~523184~~976522% 0.~~000000~~020777% 0.~~143619~~020777% 0.000000% 01.~~666803~~018076% 0.~~447580~~781138% 0.~~000000~~008353% 0.~~118644~~018250% 0.000000% 0.~~566224~~807741% 60 Days 0.~~071810~~093497% 0.~~010259~~010389% 0.~~041034~~290879% 0.000000% 0.~~123102~~394764% 0.~~075646~~164854% 0.~~011349~~011526% 0.~~039235~~232818% 0.000000% 0.~~126230~~409198% 90 Days 0.000000% 0.~~000000~~041554% 0.~~000000~~280490% 0.000000% 0.~~000000~~322044% 0.000000% 0.~~000000~~024673% 0.~~000000~~235890% 0.000000% 0.~~000000~~260564% 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% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 01.~~594994~~070019% 0.~~030776~~218159% 0.~~184653~~592146% 0.000000% 01.~~810423~~880324% 0.~~523226~~945993% 0.~~019070~~154744% 0.~~157879~~486958% 0.000000% 01.~~700175~~587695%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance ~~225~~372,~~721~~211.5777 Class A-1 1,099,999,900.00 68.74999375% 1,074,936,525.40 68.92478947% 31.075204% 0.000000% Class A-2 191,999,900.00 11.99999375% 192,000,000.00 12.31101490% 56.613775% 0.000000% Class M-1 119,999,900.00 7.49999375% 120,000,000.00 7.69438431% 4.616631% 0.000000% Class M-2 59,999,900.00 3.74999375% 60,000,000.00 3.84719216% 3.847192% 0.000000% Class M-3 23,999,900.00 1.49999375% 24,000,000.00 1.53887686% 2.308315% 0.000000% Class M-4 7,999,900.00 0.49999375% 8,000,000.00 0.51295895% 1.025918% 0.000000% Class C 0.00 0.00000000% 0.00 0.00000000% 0.512959% 0.000000% Please Refer to the Prospectus Supplement for a Full Description of Loss Exposure

COLLATERAL STATEMENT Collateral Description Mixed Fixed & Arm Weighted Average Gross Coupon 7.~~929958~~927119% Weighted Average Net Coupon 7.~~629957~~627119% Weighted Average Pass-Through Rate 6.~~854294~~850703% Weighted Average Maturity(Stepdown Calculation ) ~~354~~352 Beginning Scheduled Collateral Loan Count 79,~~352~~696 Number Of Loans Paid In Full ~~(2,396)~~70 Ending Scheduled Collateral Loan Count 9,~~748~~626 Beginning Scheduled Collateral Balance 1,~~216~~574,~~705~~543,~~869~~021.8519 Ending Scheduled Collateral Balance 1,~~585~~559,~~783~~578,~~446~~975.3049 Ending Actual Collateral Balance at 2830-~~Feb~~Apr-2003 1,~~586~~559,~~044~~874,~~293~~893.2535 Monthly P &I Constant 11,~~725~~596,~~029~~768.2981 Special Servicing Fee 0.00 Prepayment Penalties 81262,~~164~~561.1670 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Ending Scheduled Balance for Premium Loans 1,~~585~~559,~~783~~578,~~446~~975.3049 Scheduled Principal 1,~~192~~195,~~838~~443.7194 Unscheduled Principal 613,~~806~~768,~~235~~601.5676

Trigger Event Not Triggered In Effect Since N/A Comments N/A Stepdown Date DoDon't ~~Not~~ Step Down In Effect Since N/A Comments N/A Unscheduled Principal-Voluntary 613,~~806~~768,~~235~~601.5676 Unscheduled Principal-Involuntary 0.00 Credit Enhancement Percentage 12.~~019653~~194014% Net WAC Carryover Amount 0.00 ~~Group~~Other 1Income Pre-Funding Acct Begin Bal 142,965,156.50 Group 1 Pre-Funding Acct Dist Amount 141,734,770.07 Group 1 Pre-Funding Acct RI to Int Cov Acct 63,890.03 Group 1 Pre-Funding Acct End Bal 1,230,386.43 Paid to Bond Group 1 Int Cov Acct Begin Bal 278,094.01 Group 1 Int Cov Acct Deposits 63,890.03 Group 1 Int Cov Acct RI 301.24 Group 1 Int Cov Acct Release to Servicer 340,091.63 Group 1 Int Cov Acct Dist Amount to Bond 1,892.41 Group 1 Int Cov Acct End Bal 0.00 Group 2 Pre-Funding Acct Begin Bal 235,912,185.69 Group 2 Pre-Funding Acct Dist Amount 235,341,880.96 Group 2 Pre-Funding Acct RI to Int Cov Acct 105,072.62 Group 2 Pre-Funding Acct End Bal 570,304.73 Paid to Bond Group 2 Int Cov Acct Begin Bal 482,462.76 Group 2 Int Cov Acct Deposits 105,072.62 Group 2 Int Cov Acct RI 520.73 Group 2 Int Cov Acct Release to Servicer 586,658.21 Group 2 Int Cov Acct Dist Amount to Bond 877.17 Group 2 Int Cov Acct End Bal 0.00 # of Subsequent Mortgage Loans Purchased 2,431 Balance of Subsequent Mortgage Loans Purchased 377,076,651.03

Miscellaneous Reporting General Excess Available Amt 6,~~705~~300,~~533~~668.6588 Extra Principal Distribution Amt 0.00 Overcollateralization Amt 8,000,000.00 Excess Overcollateralized Amt 0.00 Overcollateralization Deficit Amt 0.00 Overcollateralization Increase Amt 0.00 Overcollateralization Release Amt 0.00 Target Overcollateralization Amt 8,000,000.00

Group Level Collateral Statement Group Group 1 Group 2 Group 3 Collateral Description Mixed Fixed Mixed ARM Mixed Fixed Weighted Average Coupon Rate 7.~~721859~~725807 8.~~183954~~182073 7.~~681559~~675523 Weighted Average Net Rate 7.~~421860~~425807 7.~~883953~~882074 7.~~381559~~375523 Weighted Average Maturity ~~354~~352 ~~354~~ 352 350 Beginning Loan Count ~~744~~1,023 2,~~160~~787 1,~~286~~656 Loans Paid In Full ~~(282)~~9 ~~(636)~~21 ~~(382)~~14 Ending Loan Count 1,~~026~~014 2,~~796~~766 1,~~668~~642 Beginning Scheduled Balance ~~114~~156,~~526~~437,~~912~~349.8567 ~~329~~423,~~609~~470,~~852~~508.1497 ~~217~~278,~~583~~021,~~325~~795.3807 Ending scheduled Balance ~~157~~154,~~036~~523,~~418~~690.6421 ~~425~~419,~~794~~417,~~324~~960.6095 ~~280~~275,~~363~~185,~~031~~894.7415 Record Date 0204/2830/2003 0204/2830/2003 0204/2830/2003 Principal And Interest Constant 1,~~153~~147,~~172~~445.0857 3,~~208~~174,~~159~~438.8211 2,~~062~~035,~~642~~436.4658 Scheduled Principal ~~139~~140,~~843~~274.4487 ~~286~~287,~~506~~049.9624 257,~~378~~134.6027 Unscheduled Principal ~~298~~1,~~042~~773,384.6959 23,~~316~~765,~~398~~498.5878 12,~~394~~578,~~833~~766.0365 Scheduled Interest 1,~~013~~007,~~328~~170.6470 2,~~921~~887,~~652~~388.8687 1,~~805~~778,~~263~~302.8631 Servicing Fees 39,~~368~~109.4943 ~~107~~105,~~099~~867.8128 7069,~~503~~505.7544 Master Servicing Fees 0.00 0.00 0.00 Trustee Fee ~~393~~391.6818 1,~~074~~059.0714 ~~705~~695.0312 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee ~~105~~104,~~287~~644.3821 ~~223~~220,~~430~~976.8915 ~~192~~189,~~314~~563.7834 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 ~~868~~968,~~279~~061.0927 2,~~590~~781,~~048~~521.0990 1,~~541~~708,~~740~~796.3086 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 6.~~616540~~620101 7.~~255093~~252887 6.~~560244~~554328

Group Level Collateral Statement Group Group 4 Total Collateral Description Mixed ARM Mixed Fixed & Arm Weighted Average Coupon Rate 7.~~921708~~918015 7.~~929958~~927119 Weighted Average Net Rate 7.~~621706~~618016 7.~~629957~~627119 Weighted Average Maturity 350 352 ~~354~~ Beginning Loan Count 34,~~162~~230 79,~~352~~696 Loans Paid In Full ~~(1,096)~~26 ~~(2,396)~~70 Ending Loan Count 4,~~258~~204 9,~~748~~626 Beginning Scheduled Balance ~~554~~716,~~985~~613,~~779~~367.48 1,~~216~~574,~~705~~543,~~869~~021.8519 Ending scheduled Balance ~~722~~710,~~589~~451,~~671~~430.3218 1,~~585~~559,~~783~~578,~~446~~975.3049 Record Date 0204/2830/2003 0204/2830/2003 Principal And Interest Constant 5,~~301~~239,~~054~~448.9355 11,~~725~~596,~~029~~768.2981 Scheduled Principal ~~509~~510,~~109~~985.7156 1,~~192~~195,~~838~~443.7194 Unscheduled Principal 25,~~796~~650,~~961~~951.2674 613,~~806~~768,~~235~~601.5676 Scheduled Interest 4,~~791~~728,~~945~~462.2299 10,~~532~~401,~~190~~324.5887 Servicing Fees ~~181~~179,~~475~~153.2214 ~~398~~393,~~447~~635.2729 Master Servicing Fees 0.00 0.00 Trustee Fee 1,~~816~~792.1752 3,~~988~~937.9596 FRY Amount 0.00 0.00 Special Hazard Fee 0.00 0.00 Other Fee ~~505~~499,~~180~~628.3290 1,~~026~~014,~~213~~812.3760 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 4,~~103~~549,~~473~~309.5185 910,~~103~~007,~~540~~689.9957 Realized Loss Amount 0.00 0.00 Cumulative Realized Loss 0.00 0.00 Percentage of Cumulative Losses 0.00 0.00 Prepayment Penalties 0.00 0.00 Special Servicing Fee 0.00 0.00 Pass-Through Rate 6.~~783575~~778364 6.~~854294~~850703

Filing Compare · OPTION ONE MORT ACCEPT CORP ASSET BACKED CERTS SER 2003 1