8-K 1 opt03001.txt OCTOBER 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): October 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 October 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 Mortgage Pass-Through Certificates, Series 2003-1 Trust, relating to the October 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 as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 11/5/03 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 October 27, 2003 distribution. EX-99.1

Option One Mortgage Loan Trust Asset-Backed Certificates Record Date: 89/3130/03 Distribution Date: 910/2527/03 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.~~53000~~54000% ~~461~~448,~~513~~278,~~961~~873.7261 ~~608~~613,~~044~~643.6497 1317,~~235~~901,~~088~~220.1169 A-2 68389FDA9 SEN 1.~~53000~~54000% ~~834~~812,~~348~~455,~~226~~281.3219 1,~~099~~112,~~253~~161.7901 2123,~~892~~747,~~945~~997.1385 M-1 68389FDB7 MEZ 2.~~01000~~02000% 72,000,000.00 ~~124~~129,~~620~~280.00 0.00 M-2 68389FDC5 MEZ 3.~~06000~~07000% 60,000,000.00 ~~158~~163,~~100~~733.0033 0.00 M-3 68389FDD3 MEZ 4.~~61000~~62000% 36,000,000.00 ~~142~~147,~~910~~840.00 0.00 M-4 68389FDE1 MEZ 5.~~36000~~37000% 16,000,000.00 7376,~~848~~373.8933 0.00 C OPT03001C OC 0.00000% 8,000,000.00 65,~~203~~881,~~584~~581.8988 0.00 P OPT03001P Pre_Pay 0.00000% 100.00 ~~737~~808,~~218~~851.4328 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,~~487~~452,~~862~~734,~~288~~254.0480 98,~~147~~933,~~580~~464.6480 3541,~~128~~649,~~033~~218.2454

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 ~~448~~430,~~278~~377,~~873~~652.6192 1318,~~843~~514,~~132~~864.7566 0.00 A-2 0.00 ~~812~~788,~~455~~707,~~281~~283.1935 2224,~~992~~860,~~198~~158.9286 0.00 M-1 0.00 72,000,000.00 ~~124~~129,~~620~~280.00 0.00 M-2 0.00 60,000,000.00 ~~158~~163,~~100~~733.0033 0.00 M-3 0.00 36,000,000.00 ~~142~~147,~~910~~840.00 0.00 M-4 0.00 16,000,000.00 7376,~~848~~373.8933 0.00 C 0.00 8,000,000.00 65,~~203~~881,~~584~~581.8988 0.00 P 0.00 100.00 ~~737~~808,~~218~~851.4328 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,~~452~~411,~~734~~085,~~254~~036.8027 4450,~~275~~582,~~613~~683.8834 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 ~~461~~448,~~513~~278,~~961~~873.7261 0.00 1317,~~235~~901,~~088~~220.1169 0.00 0.00 A-2 908,000,000.00 ~~834~~812,~~348~~455,~~226~~281.3219 0.00 2123,~~892~~747,~~945~~997.1385 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,~~487~~452,~~862~~734,~~288~~254.0480 0.00 3541,~~128~~649,~~033~~218.2454 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 1317,~~235~~901,~~088~~220.1169 ~~448~~430,~~278~~377,~~873~~652.6192 0.~~89655775~~86075531 1317,~~235~~901,~~088~~220.1169 A-2 2123,~~892~~747,~~945~~997.1385 ~~812~~788,~~455~~707,~~281~~283.1935 0.~~89477454~~86862036 2123,~~892~~747,~~945~~997.1385 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 3541,~~128~~649,~~033~~218.2454 1,~~452~~411,~~734~~085,~~254~~036.8027 0.~~90795891~~88192815 3541,~~128~~649,~~033~~218.2454

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 ~~923~~896.~~02792344~~55774722 0.00000000 2635.~~47017622~~80244138 0.00000000 A-2 908,000,000.00 ~~918~~894.~~88571181~~77453876 0.00000000 2426.~~11117305~~15418265 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 2635.~~47017622~~80244138 ~~896~~860.~~55774722~~75530584 0.~~89655775~~86075531 2635.~~47017622~~80244138 A-2 0.00000000 2426.~~11117305~~15418265 ~~894~~868.~~77453876~~62035611 0.~~89477454~~86862036 2426.~~11117305~~15418265 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~~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 A-1 500,000,000.00 1.~~53000~~54000% ~~461~~448,~~513~~278,~~961~~873.7261 ~~608~~613,~~044~~643.6497 0.00 0.00 A-2 908,000,000.00 1.~~53000~~54000% ~~834~~812,~~348~~455,~~226~~281.3219 1,~~099~~112,~~253~~161.7901 0.00 0.00 M-1 72,000,000.00 2.~~01000~~02000% 72,000,000.00 ~~124~~129,~~620~~280.00 0.00 0.00 M-2 60,000,000.00 3.~~06000~~07000% 60,000,000.00 ~~158~~163,~~100~~733.0033 0.00 0.00 M-3 36,000,000.00 4.~~61000~~62000% 36,000,000.00 ~~142~~147,~~910~~840.00 0.00 0.00 M-4 16,000,000.00 5.~~36000~~37000% 16,000,000.00 7376,~~848~~373.8933 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,~~206~~243,~~777~~031.3264 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 ~~608~~613,~~044~~643.6497 0.00 ~~448~~430,~~278~~377,~~873~~652.6192 A-2 0.00 0.00 1,~~099~~112,~~253~~161.7901 0.00 ~~812~~788,~~455~~707,~~281~~283.1935 M-1 0.00 0.00 ~~124~~129,~~620~~280.00 0.00 72,000,000.00 M-2 0.00 0.00 ~~158~~163,~~100~~733.0033 0.00 60,000,000.00 M-3 0.00 0.00 ~~142~~147,~~910~~840.00 0.00 36,000,000.00 M-4 0.00 0.00 7376,~~848~~373.8933 0.00 16,000,000.00 C 0.00 0.00 65,~~203~~881,~~584~~581.8988 0.00 8,000,000.00 P 0.00 0.00 ~~737~~808,~~218~~851.4328 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 98,~~147~~933,~~580~~464.6480 0.00 (4) Amount Does Not Include Excess Special Hazard, ~~Bankrupcy~~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 A-1 500,000,000.00 1.~~53000~~54000% ~~923~~896.~~02792344~~55774722 1.~~21608928~~22728794 0.00000000 0.00000000 A-2 908,000,000.00 1.~~53000~~54000% ~~918~~894.~~88571181~~77453876 1.~~21063193~~22484693 0.00000000 0.00000000 M-1 72,000,000.00 2.~~01000~~02000% 1000.00000000 1.~~73083333~~79555556 0.00000000 0.00000000 M-2 60,000,000.00 3.~~06000~~07000% 1000.00000000 2.~~63500000~~72888883 0.00000000 0.00000000 M-3 36,000,000.00 4.~~61000~~62000% 1000.00000000 34.~~96972222~~10666667 0.00000000 0.00000000 M-4 16,000,000.00 5.~~36000~~37000% 1000.00000000 4.~~61555563~~77333313 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.~~21608928~~22728794 0.00000000 ~~896~~860.~~55774722~~75530584 A-2 0.00000000 0.00000000 1.~~21063193~~22484693 0.00000000 ~~894~~868.~~77453876~~62035611 M-1 0.00000000 0.00000000 1.~~73083333~~79555556 0.00000000 1000.00000000 M-2 0.00000000 0.00000000 2.~~63500000~~72888883 0.00000000 1000.00000000 M-3 0.00000000 0.00000000 34.~~96972222~~10666667 0.00000000 1000.00000000 M-4 0.00000000 0.00000000 4.~~61555563~~77333313 0.00000000 1000.00000000 C 0.00000000 0.00000000 ~~775~~735.~~45780447~~20692509 0.00000000 1000.01250016 P 0.00000000 0.00000000 ~~7372184~~8088512.~~30000000~~80000000 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~~Bankruptcy,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 4451,~~947~~258,~~144~~837.4864 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 0.00 Realized Loss (Gains, Subsequent Expenses & Recoveries) (71179,~~860~~269.7649) Prepayment Penalties ~~737~~808,~~218~~851.4328 Total Deposits 4551,~~612~~888,~~502~~419.1543 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee 1,~~336~~305,~~888~~736.2709 Payment of Interest and Principal 4450,~~275~~582,~~613~~683.8834 Total Withdrawals (Pool Distribution Amount) 4551,~~612~~888,~~502~~419.1543 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee ~~371~~363,~~965~~184.8003 Radian PMI Policy Fee ~~961~~938,~~201~~918.2077 Wells Fargo 3,~~721~~633.2729 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee 1,~~336~~305,~~888~~736.2709

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 2625 1 0 2726 4,~~348~~377,~~444~~682.9112 70144,~~105~~883.5594 0.00 4,~~418~~522,~~550~~566.4606 30 Days ~~133~~120 4 1 0 ~~138~~125 1918,~~229~~388,~~979~~606.0134 ~~267~~903,~~917~~570.3540 ~~145~~54,~~066~~969.7916 0.00 19,~~642~~347,~~963~~145.1590 60 Days 2017 16 40 0 6163 32,~~886~~610,~~036~~474.2863 52416,~~418~~431.1106 54,~~763~~923,~~894~~287.3885 0.00 97,~~702~~950,~~348~~193.7754 90 Days 1311 2932 ~~135~~153 914 ~~186~~210 21,~~184~~307,~~435~~484.8653 3,~~654~~768,~~202~~724.6146 1924,~~857~~082,~~550~~665.1914 ~~978~~1,~~940~~913,425.1081 2631,~~675~~072,~~128~~299.7694 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 ~~166~~148 6067 ~~177~~195 914 ~~412~~424 2522,~~300~~306,~~451~~565.1550 89,~~322~~466,~~982~~408.9804 2529,~~836~~205,~~616~~806.9109 ~~978~~1,~~940~~913,425.1081 6062,~~438~~892,~~991~~205.1444 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.~~287007~~283382% 0.~~011039~~011335% 0.000000% 0.~~298046~~294718% 0.~~299229~~310117% 0.~~004824~~010264% 0.000000% 0.~~304053~~320380% 30 Days 1.~~468153~~360236% 0.~~044155~~045341% 0.~~011039~~011335% 0.000000% 1.~~523347~~416912% 1.~~323268~~302656% 0.~~018436~~064009% 0.~~009982~~003894% 0.000000% 1.~~351687~~370559% 60 Days 0.~~220775~~192700% 0.~~011039~~068012% 0.~~441550~~453412% 0.000000% 0.~~673364~~714124% 0.~~267409~~184927% 0.~~003607~~029500% 0.~~396630~~348768% 0.000000% 0.~~667645~~563195% 90 Days 0.~~143504~~124688% 0.~~320124~~362730% 1.~~490231~~734301% 0.~~099349~~158694% 2.~~053207~~380413% 0.~~150317~~092623% 0.~~251456~~266978% 1.~~366453~~706025% 0.~~067364~~135548% 12.~~835589~~201174% 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 1.~~832432~~677624% 0.~~662325~~759465% 12.~~953858~~210383% 0.~~099349~~158694% 4.~~547963~~806166% 1.~~740994~~580206% 0.~~572727~~670604% 12.~~777889~~068950% 0.~~067364~~135548% 4.~~158974~~455308%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance ~~732~~757,~~571~~273.5021 Class A-1 1,099,999,900.00 68.74999375% 1980,~~004~~707,~~455,281~~283.1935 69.~~14239668~~50022558% 30.~~857596~~499767% 0.000000% Class A-2 191,999,900.00 11.99999375% 192,000,000.00 13.~~21645713~~60655064% 55.~~925940~~893675% 0.000000% Class M-1 119,999,900.00 7.49999375% 120,000,000.00 8.~~26028571~~50409415% 45.~~956171~~102456% 0.000000% Class M-2 59,999,900.00 3.74999375% 60,000,000.00 4.~~13014285~~25204707% 4.~~130143~~252047% 0.000000% Class M-3 23,999,900.00 1.49999375% 24,000,000.00 1.~~65205714~~70081883% 2.~~478086~~551228% 0.000000% Class M-4 7,999,900.00 0.49999375% 8,000,000.00 0.~~55068571~~56693961% 1.~~101371~~133879% 0.000000% Class C 0.00 0.00000000% 0.00 0.00000000% 0.~~550686~~566940% 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.~~918568~~918542% Weighted Average Net Coupon 7.~~618568~~618542% Weighted Average Pass-Through Rate 6.~~840332~~839967% Weighted Average Maturity(Stepdown Calculation ) ~~348~~347 Beginning Scheduled Collateral Loan Count 9,~~247~~059 Number Of Loans Paid In Full ~~188~~237 Ending Scheduled Collateral Loan Count 98,~~059~~822 Beginning Scheduled Collateral Balance 1,~~487~~452,~~862~~734,~~288~~254.0480 Ending Scheduled Collateral Balance 1,~~452~~411,~~734~~085,~~254~~036.8026 Ending Actual Collateral Balance at 3130-~~Aug~~Sep-2003 1,~~453~~411,~~218~~624,~~771~~243.7780 Monthly P &I Constant 10,~~964~~710,~~050~~182.0178 Special Servicing Fee 0.00 Prepayment Penalties ~~737~~808,~~218~~851.4328 Realized Loss Amount 71179,~~860~~269.7649 Cumulative Realized Loss 72251,~~013~~283.6514 Ending Scheduled Balance for Premium Loans 1,~~452~~411,~~734~~085,~~254~~036.8026 Scheduled Principal 1,~~145~~123,~~934~~901.8046 Unscheduled Principal 3340,~~982~~525,~~098~~317.4408

Trigger Event Not Triggered In Effect Since ~~N/A~~NA Comments ~~N/A~~NA Stepdown Date ~~Don't~~Do Not Step Down In Effect Since ~~N/A~~NA Comments ~~N/A~~NA Unscheduled Principal-Voluntary 3340,~~444~~139,~~821~~740.7943 Unscheduled Principal-Involuntary ~~537~~385,~~276~~576.65 Credit Enhancement Percentage 1213.~~904420~~22140% Net WAC Carryover Amount 0.00 Other Income ~~996~~23,337.0777

Miscellaneous Reporting General Excess Available Amt 6,~~275~~060,~~445~~851.6537 Extra Principal Distribution Amt 71179,~~860~~269.7649 Overcollateralization Amt 8,000,000.00 Excess Overcollateralized Amt 0.00 Overcollateralization Deficit Amt 71179,~~860~~269.7649 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.~~721565~~724595 8.~~165666~~160870 7.~~654948~~652206 Weighted Average Net Rate 7.~~421565~~424595 7.~~865666~~860869 7.~~354948~~352205 Weighted Average Maturity ~~348~~347 ~~348~~347 ~~346~~345 Beginning Loan Count ~~983~~973 2,~~658~~587 1,~~566~~536 Loans Paid In Full 1029 7177 30 Ending Loan Count ~~973~~944 2,~~587~~510 1,~~536~~506 Beginning Scheduled Balance ~~149~~147,~~337~~532,~~341~~200.9616 ~~401~~390,~~475~~030,~~814~~676.0142 ~~260~~254,~~065~~883,~~103~~725.6665 Ending scheduled Balance ~~147~~142,~~532~~612,~~200~~914.1668 ~~390~~377,~~030~~036,~~676~~945.4228 ~~254~~249,~~883~~117,~~725~~002.6536 Record Date 0809/3130/2003 0809/3130/2003 0809/3130/2003 Principal And Interest Constant 1,~~098~~084,~~657~~918.5756 32,~~008~~921,~~728~~998.1283 1,~~902~~865,~~685~~625.1063 Scheduled Principal ~~137~~135,~~725~~229.8776 ~~276~~269,~~796~~507.9259 ~~243~~240,~~697~~273.7333 Unscheduled Principal 14,~~667~~784,~~415~~055.9372 1112,~~168~~724,~~340~~223.6755 45,~~937~~526,~~680~~449.2896 Scheduled Interest ~~960~~949,~~931~~688.7080 2,~~731~~652,~~931~~491.2024 1,~~658~~625,~~987~~352.3730 Servicing Fees 3736,~~334~~883.3506 ~~100~~97,~~369~~507.1370 6563,~~016~~721.2912 Master Servicing Fees 0.00 0.00 0.00 Trustee Fee ~~373~~368.5483 ~~1,004~~975.3275 ~~650~~637.2120 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 9998,~~637~~502.0138 ~~210~~205,~~976~~473.5274 ~~177~~174,~~723~~521.4605 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 ~~923~~912,~~597~~805.3574 2,~~631~~554,~~562~~983.0754 1,~~593~~561,~~971~~631.0719 Realized Loss Amount 0.00 4288,~~266~~847.0562 0.00 Cumulative Realized Loss 0.00 42131,~~418~~266.9456 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.~~617931~~620395 7.~~232061~~225690 6.~~531891~~527555

Group Level Collateral Statement Group Group 4 Total Collateral Description Mixed ARM Mixed Fixed & Arm Weighted Average Coupon Rate 7.~~916757~~921546 7.~~918568~~918542 Weighted Average Net Rate 7.~~616757~~621545 7.~~618568~~618542 Weighted Average Maturity ~~346~~345 ~~348~~347 Beginning Loan Count 43,~~040~~963 9,~~247~~059 Loans Paid In Full 77101 ~~188~~237 Ending Loan Count 3,~~963~~862 98,~~059~~822 Beginning Scheduled Balance ~~676~~660,~~984~~287,~~028~~652.4157 1,~~487~~452,~~862~~734,~~288~~254.0480 Ending scheduled Balance ~~660~~642,~~287~~318,~~652~~173.5794 1,~~452~~411,~~734~~085,~~254~~036.8026 Record Date 0809/3130/2003 0809/3130/2003 Principal And Interest Constant 4,~~953~~837,~~979~~639.2276 10,~~964~~710,~~050~~182.0178 Scheduled Principal ~~487~~478,~~714~~890.2878 1,~~145~~123,~~934~~901.8046 Unscheduled Principal 1617,~~208~~490,~~661~~587.5685 3340,~~982~~525,~~098~~317.4408 Scheduled Interest 4,~~466~~358,~~264~~748.9498 9,~~818~~586,~~115~~281.2132 Servicing Fees ~~169~~165,~~246~~072.0315 ~~371~~363,~~965~~184.8003 Master Servicing Fees 0.00 0.00 Trustee Fee 1,~~693~~651.2051 3,~~721~~633.2729 FRY Amount 0.00 0.00 Special Hazard Fee 0.00 0.00 Other Fee ~~472~~460,~~864~~421.2160 ~~961~~938,~~201~~918.2077 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,~~297~~193,~~018~~676.9183 9,~~446~~223,~~149~~097.4030 Realized Loss Amount 2990,~~594~~421.7187 71179,~~860~~269.7649 Cumulative Realized Loss 29120,~~594~~016.7158 72251,~~013~~283.6514 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.~~775572~~781778 6.~~840332~~839967

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