EXHIBIT 99.1 SUBJECT TO REVISION COMPUTATIONAL MATERIALS DATED DECEMBER 4, 2000 [C-BASS LOGO] $162,386,000 (APPROXIMATE) CREDIT-BASED ASSET SERVICING AND SECURITIZATION LLC Seller LITTON LOAN SERVICING LP Servicer RESIDENTIAL ASSET FUNDING CORPORATION Depositor C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 DISCLAIMER Attached are preliminary Computational Materials describing the structure, collateral pool and certain aspects of the C-BASS Mortgage Loan Asset-Backed Certificates, Series 2000-CB4. These Computational Materials have been prepared by the Underwriters based on collateral information provided by Credit-Based Asset Servicing Securitization LLC ("C-BASS") for informational purposes only and is subject to modification or change. The information and assumptions contained therein are preliminary and will be superseded by a prospectus supplement and by any other additional information subsequently filed with the Securities and Exchange Commission or incorporated by reference in the Registration Statement. Neither First Union Securities, Inc., Bear Stearns & Co., Inc., the Seller nor any of their respective affiliates make any representation as to the accuracy or completeness of any of the information set forth in the attached Computational Materials. This cover is not part of the Computational Materials. A Registration Statement (including a base prospectus) relating to the Certificates has been filed with the Securities and Exchange Commission. The final Prospectus Supplement relating to the securities will be filed after the securities have been priced and all of the terms and information are finalized. This communication is not an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state. Interested persons are referred to the Final Prospectus and Prospectus Supplement to which the securities relate. Any investment decision should be based only upon the information in the Final Prospectus and Prospectus Supplement as of their publication dates. [FIRST UNION LOGO] C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- OFFERED CERTIFICATES: TO CALL: - ------------------------------------------------------------------------------------------------ Expected Expected Est. Est. Prin Final Legal Final Approximate Coupon WAL Window Distribution Distribution Class Size Type (yrs) (mths) Date Date Moody's S&P Fitch - ------------------------------------------------------------------------------------------------------------------------------------ A-1F 34,490,000 Fixed 1.01 1 - 27 2/25/03 4/25/13 Aaa AAA AAA A-2F 19,000,000 Fixed 3.96 27 - 80 7/25/07 11/25/31 Aaa AAA AAA A-1A 82,039,000 Floating 2.52 1 - 90 5/25/08 2/25/30 Aaa AAA AAA M-1 11,569,000 Fixed 4.99 41 - 90 5/25/08 11/25/31 Aa2 AA AA M-2 7,851,000 Fixed 4.89 39 - 90 5/25/08 11/25/31 A2 A A B-1 4,958,000 Fixed 4.85 37 - 90 5/25/08 11/25/31 Baa2 BBB BBB B-2 2,479,000 Fixed 4.76 37 - 90 5/25/08 11/25/31 - - BBB - ------------------------------------------------------------------------------------------------------------------------------------ TO MATURITY: - ------------------------------------------------------------------------------------------------ Expected Expected Est. Est. Prin Final Legal Final Approximate Coupon WAL Window Distribution Distribution Class Size Type (yrs) (mths) Date Date Moody's S&P Fitch - ------------------------------------------------------------------------------------------------------------------------------------ A-1F 34,490,000 Fixed 1.01 1 - 27 2/25/03 4/25/13 Aaa AAA AAA A-2F 19,000,000 Fixed 3.96 27 - 80 7/25/07 11/25/31 Aaa AAA AAA A-1A 82,039,000 Floating 2.95 1 - 218 1/25/19 2/25/30 Aaa AAA AAA M-1 11,569,000 Fixed 5.58 41 - 173 4/25/15 11/25/31 Aa2 AA AA M-2 7,851,000 Fixed 5.42 39 - 150 5/25/13 11/25/31 A2 A A B-1 4,958,000 Fixed 5.20 37 - 132 11/25/11 11/25/31 Baa2 BBB BBB B-2 2,479,000 Fixed 4.81 37 - 102 5/25/09 11/25/31 - - BBB - ------------------------------------------------------------------------------------------------------------------------------------ <FN> - ------------------------------------------------------------------------------------------------------------------------------------ NOTES: - ------ (1) If the optional clean-up call is not exercised by the Seller, the margin on the Class A-1A Certificates will double, and the pass-through rate on the Class A-2F Certificates will increase by 50 bps per annum. (2) The pricing speed for Loan Group 1 is as follows: 12% CPR for Sub-group 1A and 21% CPR for Sub-group 1B. (3) The pricing speed for Loan Group 2 is as follows: months 1-10 3.5-35% CPR; months 11-22 35%CPR; months 23-25 50% CPR; months 26-34 35% CPR; months 35-37 50% CPR; and months 38+ 35% CPR. (4) The Class A-1F and A-2F Certificates are subject to a maximum rate equal to the lesser of (i) the Group 1 Net Funds Cap and (ii) the Pool Cap. The Class A-1A Certificates are subject to a maximum rate equal to the lesser of (i) the Group 2 Net Funds Cap and (ii) the Pool Cap. The Class M-1, Class M-2, Class B-1, and Class B-2 Certificates are subject to a maximum rate equal to the Pool Cap. (5) The Class M-1, Class M-2, Class B-1, and Class B-2 Certificates are not expected to receive principal payments until the Stepdown Date. (6) Prior to the Stepdown Date, Class M-1, Class M-2, Class B-1, and Class B-2 will receive distributions primarily from the mortgage loans in Loan Group 1. After the Stepdown Date, Class M-1, Class M-2, Class B-1, and Class B-2 may, under certain circumstances, also receive distributions from the mortgage loans in Loan Group 2. - ------------------------------------------------------------------------------------------------------------------------------------ </FN> 2 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- SUMMARY OF TERMS TITLE OF SECURITIES: C-BASS Mortgage Loan Asset-Backed Certificates, Series 2000-CB4 SERVICER: Litton Loan Servicing LP, an affiliate of the Seller SELLER: Credit-Based Asset Servicing and Securitization LLC ("C-BASS") DEPOSITOR: Residential Asset Funding Corporation TRUSTEE: The Chase Manhattan Bank CUSTODIAN: Bank One Trust Company, NA RATING AGENCIES: Moody's Investors Service. Inc. ("Moody's"), Standard and Poor's Rating Services ("S&P") and Fitch, Inc. ("Fitch") UNDERWRITERS: First Union Securities, Inc. (Lead Underwriter) Bear Stearns & Co., Inc. (Co-Manager) SETTLEMENT DATE: On or about December 13, 2000 DISTRIBUTION DATES: 25th of each month, or if such day is not a business day, the next succeeding business day, commencing December 26, 2000. RECORD DATE: For the Offered Certificates (other than the Class A-1A Certificates), the last business day in the month preceding the applicable Distribution Date. For the Class A-1A Certificates, the Record Date is the business day preceding the applicable Distribution Date. CUT-OFF DATE: The close of business on November 1, 2000 PAYMENT DELAY: With respect to the Offered Certificates (other than the Class A-1A Certificates), 24 days and with respect to the A-1A Certificates, 0 days. DAY COUNT: With respect to the Offered Certificates (other than the Class A-1A Certificates), 30/360 and with respect to the Class A-1A Certificates, Actual/360. SERVICING FEE: 0.50% for Group 1 and Group 2 Mortgage Loans. LENDER PAID MORTGAGE INSURANCE FEE: 35.70% of the mortgage loans in Group 1 and 51.11% of the mortgage loans in Group 2 are insured by a lender paid mortgage insurance policy. SPECIAL SERVICING FEE: $150 for all loans that are 90 or more days delinquent, with the exception of Re-Performing Loans, payable monthly for eighteen consecutive months commencing in the first month after the Cut-off Date in which payments on such mortgage loans are 90 or more days delinquent, unless such mortgage loan becomes less than 90 days delinquent or is liquidated or repurchased. The Special Servicing Fee will be subordinate to cashflows to the Offered Certificates. 3 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- OPTIONAL CLEAN-UP CALL: Any Distribution Date on or after which the aggregate principal balance of the mortgage loans declines to 10% or less of the aggregate principal balance as of the Cut-off Date ("Cut-off Balance"). DENOMINATION: $25,000 and multiples of $1 in excess thereof. SMMEA ELIGIBILITY: The Offered Certificates will NOT be SMMEA eligible. ERISA ELIGIBILITY: The Senior Certificates may be ERISA eligible. TAX STATUS: The Offered Certificates will be designated as regular interests in a REMIC and, as such, will be treated as debt instruments of a REMIC for federal income tax purposes. SENIOR CERTIFICATES: Class A-1F, A-2F and Class A-1A Certificates. SUBORDINATE CERTIFICATES: Class M-1, Class M-2, Class B-1, and Class B-2 Certificates. THE MORTGAGE LOAN POOL - ---------------------- GROUP 1 MORTGAGE LOANS: Consist of mortgage loans from Sub-group 1A and Sub-group 1B. SUB-GROUP 1A consists of approximately 388 fixed-rate, FHA/VA/FHAUN/VAUN mortgage loans with an aggregate principal balance of approximately $10,710,594.65. 28.60% of the mortgage loans are FHAUN mortgage loans, 1.99% of the mortgage loans are VAUN mortgage loans, and 69.42% are FHA/VA mortgage loans. SUB-GROUP 1B consists of approximately 878 fixed-rate, conventional mortgage loans with an aggregate principal balance of approximately $72,528,613.35. GROUP 2 MORTGAGE LOANS: Consist of approximately 718 adjustable rate mortgage loans with an aggregate principal balance of approximately $82,038,828.61. MORTGAGE POOL: o The collateral information presented in these Computational Materials regarding the Mortgage Pool is as of the Cut-off Date. o Consists of fixed and adjustable-rate, FHA insured, VA guaranteed, FHA uninsured, VA non-guaranteed, and conventional closed-end mortgage loans, secured by 1st and 2nd lien, level pay and balloon mortgages on primarily 1-4 family properties. o The Group 1 Mortgage Loans and Group 2 Mortgage Loans consist of Performing Mortgage Loans, Sub-Performing Mortgage Loans and Re-Performing Mortgage Loans. (Please see "Collateral Overview" for additional information.) o For collateral statistics, please see "Description of the Collateral" CREDIT ENHANCEMENT: CLASS A-1F, CLASS A-2F, AND CLASS A-1A CREDIT ENHANCEMENT --------------------------------------------------------- (1) Excess cash. (2) Subordination of Class M-1, Class M-2, Class B-1, and Class B-2 Certificates, totaling [16.25%] of the original mortgage loan amount and initial overcollateralization of [1.75%] of the original mortgage loan amount. 4 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- CLASS M-1, CLASS M-2, CLASS B-1, AND CLASS B-2 CREDIT ENHANCEMENT ----------------------------------------------------------------- (1) Excess cash. (2) Class M-1 is enhanced by [9.25%] in subordinate certificates and overcollateralization initially equal to the requirement of [1.75%] of the original mortgage loan amount. (3) Class M-2 is enhanced by [4.50%] in subordinate certificates and overcollateralization initially equal to the requirement of [1.75%] of the original mortgage loan amount. (4) Class B-1 is enhanced by [1.50%] in subordinate certificates and overcollateralization initially equal to the requirement of [1.75%] of the original mortgage loan amount. (5) Class B-2 is enhanced by overcollateralization initially equal to [1.75%] of the original mortgage loan amount. OVERCOLLATERALIZATION: (1) Before the Stepdown Date, the overcollateralization requirement is [1.75%] of the original mortgage loan amount. (2) On and after the Stepdown Date, the overcollateralization requirement is the lower of [3.50%] of the current aggregate mortgage loan amount and [1.75%] of the original mortgage loan amount. (3) The overcollateralization requirement is subject to a floor of [0.50%] of the original mortgage loan amount. MONTHLY SERVICER ADVANCES: ACTUARIAL LOANS --------------- The Servicer is required to advance scheduled principal and interest (net of the Servicing Fee) for any delinquent mortgage loan until such loan becomes an REO, but is not required to make any advance which the Servicer deems to be non-recoverable or with respect to reduction in the monthly payment due to bankruptcy proceedings or the application of the Soldiers' and Sailors' Civil Relief Act of 1940, as amended (the "Relief Act"). SIMPLE INTEREST LOANS --------------------- The Servicer is NOT required to advance scheduled principal and interest for any Simple Interest Loans. Approximately 1.37% of the mortgage loans are Simple Interest Loans. PREPAYMENT INTEREST SHORTFALL: For any Distribution Date, an amount equal to the interest at the mortgage interest rate for such mortgage loan (the "Mortgage Interest Rate") (net of the related Servicing Fee) on the amount of such principal prepayment for the number of days commencing on the date on which the principal prepayment is applied and ending on the last day of the prior calendar month. SERVICER OBLIGATIONS FOR PREPAYMENT The Servicer will be obligated to pay, from its own funds, Prepayment Interest INTEREST SHORTFALLS: Shortfalls for any prepayment in full on an Actuarial Loan, but only to the extent of 50% of its Servicing Fee for the related collection period. THE SERVICER WILL NOT COVER ANY PREPAYMENT INTEREST SHORTFALLS ON SIMPLE INTEREST LOANS. 5 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- INTEREST DISTRIBUTIONS ---------------------- INTEREST ACCRUAL: o Interest will accrue on the Class A-1F and Class A-2F Certificates at a rate equal to the least of (i) the applicable pass through rate, (ii) the Group 1 Net Funds Cap, and (iii) the Pool Cap. o Interest will accrue on the Class A-1A Certificates at a rate equal to the least of (i) the applicable pass through rate, (ii) the Group 2 Net Funds Cap, and (iii) the Pool Cap. o Interest will accrue on the Class M-1, Class M-2, Class B-1, and Class B-2 Certificates at a rate equal to the lesser of (i) the applicable pass through rate, and (ii) the Pool Cap. o The pass-through rate for the Class A-1A Certificates is equal to 1 month LIBOR plus the applicable margin. o For any Distribution Date, interest on the Offered Certificates (other than Class A-1A Certificates) accrues during the calendar month prior to the current Distribution Date on a 30/360 basis. o For any Distribution Date, except for the first accrual period, interest on the Class A-1A Certificates accrues from the last Distribution Date to the day preceding the current Distribution Date on an Actual/360 basis. The first accrual period for the Class A-1A Certificates will begin on the Closing Date and end on December 25, 2000. STEP-UP COUPON RATE: If the optional clean-up call is not exercised by the Seller, the margin on the Class A-1A Certificates will double, and the pass-through rate on the Class A-2F Certificates will increase by 50 bps per annum. GROUP 1 NET FUNDS CAP: The Group 1 Net Funds Cap shall equal the product of (x) the average of the Net Mortgage Interest Rates of the Group 1 Mortgage Loans, weighted on the basis of the related mortgage loan balances as of the first day of the related Collection Period, and (y) the aggregate principal balance of the Group 1 and Group 2 mortgage loans divided by the aggregate Certificate Principal Balance of the Offered Certificates. GROUP 2 NET FUNDS CAP: The Group 2 Net Funds Cap shall equal the product of (x) the average of the Net Mortgage Interest Rates of the Group 2 Mortgage Loans, weighted on the basis of the related mortgage loan balances as of the first day of the related Collection Period, expressed on the basis of an assumed 360-day year and the actual number of days elapsed during the related accrual period, and (y) the aggregate principal balance of the Group 1 and Group 2 mortgage loans divided by the aggregate Certificate Principal Balance of the Offered Certificates. POOL CAP: The Pool Cap shall equal the product of (x) the average of the Net Mortgage Interest Rates of the Mortgage Pool, weighted on the basis of the mortgage loan balances as of the first day of the related collection period, and (y) the aggregate principal balance of the Group 1 and Group 2 mortgage loans divided by the aggregate certificate principal balance of the Offered Certificates NET MORTGAGE INTEREST RATE: The Net Mortgage Interest Rate for each mortgage loan is the applicable Mortgage Interest Rate less (i) the Servicing Fee Rate, (ii) the rate at which the Trustee Fee accrues and (iii) the lender paid Mortgage Insurance Fee, if any. 6 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- CLASS A-1A LIBOR CARRYOVER AMOUNT: If on any Distribution Date, the accrued certificate interest for the Class A-1A Certificates is based on the Group 2 Net Funds Cap or the Pool Cap, the excess of (i) the amount of interest the Class A-1A Certificates would have been entitled to receive on such Distribution Date based on its applicable pass-through rate, over (ii) the amount of interest the Class A-1A Certificates received on such Distribution Date based on the Group 2 Net Funds Cap or the Pool Cap, together with the unpaid portion of any such excess from prior Distribution Dates (and interest accrued thereon at the then applicable pass-through rate on the Class-A-1A Certificates) will be the Class A-1A LIBOR Carryover Amount. PRIORITY OF INTEREST DISTRIBUTION: On each Distribution Date, based upon the information provided to it in the remittance report, the Trustee will distribute the Interest Remittance Amount in the following order of priority to the extent available: o First, to the Trustee, the trustee fee; o Second, concurrently, to the Class A-1F, Class A-2F and Class A-1A Certificates, pro rata, the applicable accrued certificate interest for such Distribution Date; o Third, concurrently, to the Class A-1F, Class A-2F and Class A-1A Certificates, pro rata, the applicable Interest Carry Forward Amount for the Class A-1F, Class A-2F and Class A-1A Certificates, respectively; o Fourth, to the Class M-1 Certificates, the interest that is accrued thereon for such Distribution Date; o Fifth, to the Class M-2 Certificates, the interest that is accrued thereon for such Distribution Date o Sixth, to the Class B-1 Certificates, the interest that is accrued thereon for such Distribution Date o Seventh, to the Class B-2 Certificates, the interest that is accrued thereon for such Distribution Date; and o Eighth, the amount, if any, of the interest remaining after application with respect to the priorities set forth above which is defined as the Monthly Excess Interest Amount for such Distribution Date and will be applied as described below under "Monthly Excess Cashflow Allocation." INTEREST REMITTANCE AMOUNT The Interest Remittance Amount means, as of any determination date, the sum, without duplication, of (i) all interest collected or advanced with respect to the related collection period on the mortgage loans (less the servicing fee, the mortgage insurance premiums, certain amounts available for reimbursement of advances and servicing advances and certain other reimbursable expenses, (ii) all compensating interest the servicer paid on such Distribution Date with respect to the mortgage loans and (iii) the portion of any payment in connection with any substitution, purchase price, termination price, liquidation proceeds (net of certain expenses) or insurance proceeds relating to interest with respect to the mortgage loans received during the related collection period. INTEREST CARRY FORWARD AMOUNT: The Interest Carry Forward Amount means for any class of Certificates and any Distribution Date the sum of (a) the excess, if any, of the interest accrued for each such Certificate and any Interest Carry Forward Amount for the prior Distribution Date, over the amount in respect of interest actually distributed on each class on such prior Distribution Date and (b) interest on such excess at the applicable Pass-Through Rate (x) with respect to the Offered Certificates (other than the Class A-1A Certificates) on the basis of a 360-day year consisting of twelve 30-day months and (y) with respect to the Class A-1A Certificates, on the basis of the actual number of days elapsed since the prior Distribution Date. 7 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- PRINCIPAL DISTRIBUTIONS ----------------------- SENIOR CERTIFICATES: Senior Certificates shall mean the Class A-1F, Class A-2F and Class A-1A Certificates. PRINCIPAL PAYMENTS: Payments of principal to the Senior Certificates are derived primarily from collections of principal on the related mortgage loan group. PRINCIPAL DISTRIBUTION AMOUNT: The sum of (i) all principal amounts collected or advanced on the mortgage loans during the related collection period or prepayment period, as applicable, less the amount, if any, by which the overcollateralization amount for the Offered Certificates exceeds the Targeted Overcollateralization Amount for such Distribution Date and (ii) the Extra Principal Distribution Amount. Extra Principal Distribution Amount means, as of any Distribution Date, the lesser of (x) the Monthly Excess Interest Amount for such Distribution Date and (y) the overcollateralization deficiency for such Distribution Date. SENIOR PRINCIPAL DISTRIBUTION As to (a) any Distribution Date prior to the Stepdown Date or during the AMOUNT ("SENIOR PDA"): continuation of a Trigger Event, the lesser of (1) 100% of the Principal Distribution Amount and (2) the aggregate certificate principal balance of the Senior Certificates, and (b) any other Distribution Date the lesser of (i) the Principal Distribution Amount and (ii) an amount equal to the excess, if any, of (x) the aggregate certificate principal balance of the Senior Certificates immediately prior to such Distribution Date over (y) the lesser of (A) the product of (i) [64.00%] and (ii) the pool balance as of the last day of the related collection period and (B) the pool balance as of the last day of the related collection period minus the product of (i) [.50%] and (ii) the pool balance on the Cut-off Date. GROUP 1 SENIOR PRINCIPAL The Group 1 Senior Principal Distribution Amount ("Group 1 Senior PDA") equals DISTRIBUTION AMOUNT: the lesser of (i) the Senior PDA multiplied by the Group 1 Principal Percentage and (ii) the aggregate principal balance of the Class A-1F and A-2F Certificates as of the immediately prior Distribution Date. The "Group 1 Principal Percentage" equals the amount of principal collections on the Group 1 Mortgage Loans for the related collection period or prepayment period, as applicable, divided by the aggregate amount of principal collections on the Group 1 and Group 2 mortgage loans for such period. The "Group 1 Principal Balance" is equal to the sum of the principal balance of the mortgage loans in Loan Group 1. GROUP 2 SENIOR PRINCIPAL The Group 2 Senior Principal Distribution Amount ("Group 2 Senior PDA") equals DISTRIBUTION AMOUNT: the lesser of (i) the Senior PDA multiplied by the Group 2 Principal Percentage and (ii) the aggregate principal balance of the Class A-1A Certificates as of the immediately prior Distribution Date. The "Group 2 Principal Percentage" equals the amount of principal collections on the Group 2 Mortgage Loans for the related collection period or prepayment period, as applicable, divided by the aggregate amount of principal collections on the Group 1 and Group 2 mortgage loans for such period. The "Group 2 Principal Balance" is equal to the sum of the principal balance of the mortgage loans in Loan Group 2. 8 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- CLASS M-1, CLASS M-2, CLASS B-1, On any Distribution Date prior to the Stepdown Date or during the continuation AND CLASS B-2 PRINCIPAL of a Trigger Event, any portion of the Principal Distribution Amount remaining DISTRIBUTION AMOUNTS: after the Senior Certificates have been reduced to zero will be distributed first to the Class M-1 Certificates, second, to the Class M-2 Certificates, third, to the Class B-1 Certificates, and fourth, to the Class B-2 Certificates in that sequential order until their respective principal balances have been reduced to zero. Class M-1 Principal Distribution Amount means as of any Distribution Date on or after the Stepdown Date and as long as a Trigger Event is not in effect, the excess of (x) the sum of (i) the sum of the Certificate Principal Balances of the Senior Certificates (after taking into account the payment of the Senior Principal Distribution Amount on such Distribution Date) and (ii) the Certificate Principal Balance of the Class M-1 Certificates immediately prior to such Distribution Date over (y) the lesser of (A) the product of (i) approximately [78.00%] and (ii) the Pool Balance as of the last day of the related Collection Period and (B) the Pool Balance as of the last day of the related Collection Period minus the product of (i) [0.50%] and (ii) the Pool Balance on the Cut-off Date. Class M-2 Principal Distribution Amount means as of any Distribution Date on or after the Stepdown Date and as long as a Trigger Event is not in effect, the excess of (x) the sum of (i) the sum of the Certificate Principal Balances of the Senior Certificates (after taking into account the payment of the Senior Principal Distribution Amount on such Distribution Date), (ii) the Certificate Principal Balance of the Class M-1 Certificates (after taking into account the payment of the Class M-1 Principal Distribution Amount on such Distribution Date) and (iii) the Certificate Principal Balance of the Class M-2 Certificates immediately prior to such Distribution Date over (y) the lesser of (A) the product of (i) approximately [87.50%] and (ii) the Pool Balance as of the last day of the related Collection Period and (B) the Pool Balance as of the last day of the related Collection Period minus the product of (i) [0.50%] and (ii) the Pool Balance on the Cut-off Date. Class B-1 Principal Distribution Amount means as of any Distribution Date on or after the Stepdown Date and as long as a Trigger Event is not in effect, the excess of (x) the sum of (i) the sum of the Certificate Principal Balances of the Senior Certificates (after taking into account the payment of the Senior Principal Distribution Amount on such Distribution Date), (ii) the Certificate Principal Balance of the Class M-1 Certificates (after taking into account the payment of the Class M-1 Principal Distribution Amount on such Distribution Date), (iii) the Certificate Principal Balance of the Class M-2 Certificates (after taking into account the payment of the Class M-2 Principal Distribution Amount on such Distribution Date), and (iv) the Certificate Principal Balance of the Class B-1 Certificates immediately prior to such Distribution Date over (y) the lesser of (A) the product of (i) approximately [93.50%] and (ii) the Pool Balance as of the last day of the related Collection Period and (B) the Pool Balance as of the last day of the related Collection Period minus the product of (i) [0.50%] and (ii) the Pool Balance on the Cut-off Date. 9 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- Class B-2 Principal Distribution Amount means as of any Distribution Date on or after the Stepdown Date and as long as a Trigger Event is not in effect, the excess of (x) the sum of (i) the sum of the Certificate Principal Balances of the Senior Certificates (after taking into account the payment of the Senior Principal Distribution Amount on such Distribution Date), (ii) the Certificate Principal Balance of the Class M-1 Certificates (after taking into account the payment of the Class M-1 Principal Distribution Amount on such Distribution Date), (iii) the Certificate Principal Balance of the Class M-2 Certificates (after taking into account the payment of the Class M-2 Principal Distribution Amount on such Distribution Date), (iv) the Certificate Principal Balance of the Class B-1 Certificates (after taking into account the payment of the Class B-1 Principal Distribution Amount on such Distribution Date), and (v) the Certificate Principal Balance of the Class B-2 Certificates immediately prior to such Distribution Date over (y) the lesser of (A) the product of (i) approximately [96.50%] and (ii) the Pool Balance as of the last day of the related Collection Period and (B) the Pool Balance as of the last day of the related Collection Period minus the product of (i) [0.50%] and (ii) the Pool Balance on the Cut-off Date. PRIORITY OF PRINCIPAL DISTRIBUTION: With respect to each Distribution Date (a) on or after the Step Down Date and (b) as long as a Trigger Event is not in effect, the holders of all classes of Certificates will be entitled to receive payment of principal, in the order of priority and in the amounts set forth below: first, concurrently as follows: (i) the Group 1 Principal Percentage of the lesser of (x) the Principal Distribution Amount and (y) Senior PDA will be distributed sequentially, to the Class A-1F Certificates and Class A-2F Certificates, in that order, until the certificate principal balance of each such class has been reduced to zero and then to the Class A-1A Certificates, until the certificate principal balance of such class has been reduced to zero; (ii) the Group 2 Principal Percentage of the lesser of (x) the Principal Distribution Amount and (y) Senior PDA will be distributed to the Class A-1A Certificates, until the certificate principal balance of such class has been reduced to zero and then sequentially to the Class A-1F and Class A-2F Certificates, in that order, until the certificate principal balance of each such class has been reduced to zero; second, the lesser of (x) the excess of (i) the Principal Distribution Amount over (ii) the amount distributed to the Senior Certificates in priority first above and (y) the Class M-1 Principal Distribution Amount will be distributed to the Class M-1 Certificates, until the certificate principal balance thereof has been reduced to zero; third, the lesser of (x) the excess of (i) the Principal Distribution Amount over (ii) the sum of the amount distributed to the Senior Certificates in priority first above and the amount distributed to the Class M-1 Certificate in priority second above and (y) the Class M-2 Principal Distribution Amount will be distributed to the Class M-2 Certificates, until the certificate principal balance thereof has been reduced to zero; fourth, the lesser of (x) the excess of (i) the Principal Distribution Amount over (ii) the sum of the amount distributed to the Senior Certificates pursuant to priority first above, the amount distributed to the Class M-1 Certificates pursuant to priority second above and the amount distributed to the Class M-2 Certificates pursuant to priority third above and (y) the Class B-1 Principal Distribution Amount will be distributed to the Class B-1 Certificates, until the certificate balance thereof has been reduced to zero; fifth, the lesser of (x) the excess of (i) the Principal Distribution Amount over (ii) the sum of the amount distributed to the Senior Certificates pursuant to priority first above, the amount distributed to the Class M-1 Certificates pursuant to priority second above, the amount distributed to the Class M-2 Certificates pursuant to priority third above and the amount distributed to the Class B-1 Certificates pursuant to priority fourth above and (y) the Class B-2 Principal Distribution Amount will be distributed to the Class B-2 Certificates, until the certificate balance thereof has been reduced to zero; and 10 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- Sixth, any amount of the Principal Distribution Amount remaining after making all of the distributions in priority first, second, third, fourth and fifth above will be included as part of the Monthly Excess Cashflow Amount and will be applied as described below under "Monthly Excess Cashflow Allocation." MONTHLY EXCESS CASHFLOW On any Distribution Date, the sum of the Monthly Excess Interest Amount, any ALLOCATION overcollateralization release amount and any portion of the Principal Distribution Amount (without duplication) remaining after principal distributions on the Offered Certificates is the "Monthly Excess Cashflow Amount," which is required to be applied in the following order of priority on such Distribution Date: (i) to fund any remaining applicable accrued certificate interest for such Distribution Date, pro rata, among the Class A-1F, Class A-2F and Class A-1A Certificates; (ii) to fund the remaining Interest Carry Forward Amounts for the classes of Senior Certificates, if any, pro rata, among the Class A-1F, Class A-2F and Class A1-A Certificates; (iii) to fund the Extra Principal Distribution Amount for such Distribution Date; (iv) to fund any remaining accrued certificate interest for such Distribution Date for the Class M-1 Certificates; (v) to fund the Interest Carry Forward Amount for the Class M-1 Certificates, if any; (vi) to Class M-1, the amount of any realized losses previously allocated to such class; (vii) to fund any remaining accrued certificate interest for such Distribution Date for the Class M-2 Certificates; (viii) to fund the Interest Carry Forward Amount for the Class M-2 Certificates, if any; (ix) to Class M-2, the amount of any realized losses previously allocated to such class; (x) to fund any remaining accrued certificate interest for such Distribution Date for the Class B-1 Certificates; (xi) to fund the Interest Carry Forward Amount for the Class B-1 Certificates, if any; (xii) to Class B-1, the amount of any realized losses previously allocated to such class; (xiii) to fund any remaining accrued certificate interest for such Distribution Date for the Class B-2 Certificates; (xiv) to fund the Interest Carry Forward Amount for the Class B-2 Certificates, if any; (xv) to Class B-2, the amount of any realized losses previously allocated to such class; (xvi) to fund the amount of any Class A-1A LIBOR Carryover Amount; (xvii) to pay any Special Servicing Fees for such Distribution Date or which remain unpaid from any previous Distribution Date; and (xviii) to fund distributions to the holders of the Class N, Class X and Class R Certificates, which are not being offered. 11 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- CREDIT ENHANCEMENT - SENIOR/SUBORDINATE STRUCTURE ------------------------------------------------- OVERCOLLATERALIZATION: On any Distribution Date, interest and principal collections on the mortgage loans in excess of the amount required to make interest and principal distributions on the Offered Certificates will be applied first to cover certain shortfalls on the Senior Certificates, then to maintain the overcollateralization for the Offered Certificates and finally, to cover certain shortfalls on the Class M-1, Class M-2, Class B-1 and Class B-2 Certificates. SUBORDINATION: If overcollateralization is insufficient to cover losses on any mortgage loans, those losses will be applied by reducing the principal balances of the Class M-1, Class M-2, Class B-1 and Class B-2 Certificates, in reverse order of seniority. CROSS-COLLATERALIZATION: o Interest collections on the Group 1 mortgage loans will be available to cover certain shortfalls on the Class A-1A Certificates. o Interest collections on the Group 2 mortgage loans will be available to cover certain shortfalls on the Class A-1F and Class A-2F Certificates. o Excess interest from both groups will be used to maintain the overcollateralization. TARGETED OVERCOLLATERALIZATION Prior to the Stepdown Date, [1.75%] of the aggregate initial principal balance AMOUNT: of the mortgage loans. On and after the Stepdown Date, the lesser of (i) [1.75%] of the aggregate initial principal balance of the mortgage loans and (ii) the greater of (A) [3.50%] of the aggregate principal balance of the mortgage loans as of the last date of the related collection period of (B) [0.50%] of the aggregate initial principal balance of the mortgage loans. CREDIT SUPPORT PERCENTAGE: Initial Credit Support After Stepdown Date ---------------------- ------------------- Class Percent Class Percent ----- ------- ----- ------- A-1F, A-2F, A-1A [18.00%] A-1F, A-2F, A-1A [36.00%] M-1 [11.00%] M-1 [22.00%] M-2 [6.25%] M-2 [12.50%] B-1 [3.25%] B-1 [6.50%] B-2 [1.75%] B-2 [3.50%] STEPDOWN DATE: The later to occur of (i) the earlier to occur of (A) the Distribution Date in December 2003 and (B) the Distribution Date on which the aggregate Certificate Principal Balance of the Senior Certificates is reduced to zero, and (ii) the first Distribution Date on which the Senior Enhancement Percentage is greater than or equal to the Senior Specified Enhancement Percentage. SENIOR ENHANCEMENT PERCENTAGE The Senior Enhancement Percentage for any Distribution Date is the percentage obtained by dividing (x) the sum of (i) the aggregate Certificate Principal Balance of the Class M-1, Class M-2, Class B-1 and Class B-2 Certificates and (ii) the Overcollateralization Amount, in each case before taking into account the distribution of the Principal Distribution Amount on such Distribution Date by (y) the aggregate principal balance of the mortgage loans as of the last day of the related collection period. SENIOR SPECIFIED ENHANCEMENT The Senior Specified Enhancement Percentage on any date of determination thereof PERCENTAGE means approximately 36.00% 12 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- TRIGGER EVENT: Is in effect on a Distribution Date if any one or more of the following conditions exist as of the last day of the related collection period: (a) The Rolling Six Month 60+ Delinquent Percentage equals or exceeds [45.00%] of the Senior Enhancement Percentage; provided, that if the certificate principal balance of the Senior Certificates has been reduced to zero, a Trigger Event will have occurred if the six-month rolling average of the 60+ Day Delinquent Loans equals or exceeds [16.20%]; or (b) The aggregate amount of realized losses incurred since the Cut-off Date through the last day of such related collection period divided by the initial principal balance of the mortgage loans exceeds the applicable percentages set forth below with respect to such Distribution Date: Distribution Date Percentage ----------------- ---------- December 25, 2003 to November 25, 2004 [2.75%] December 25, 2004 to November 25, 2005 [3.50%] December 25, 2005 to November 25, 2006 [4.00%] December 25, 2006 and thereafter [4.50%] 60+ DAY DELINQUENT LOAN: Each mortgage loan with respect to which any portion of the monthly payment is, as of the last day of the prior collection period, two months or more past due (other than a Re-Performing 60+ Day Delinquent Loan), each mortgage loan in foreclosure, all REO Property and each mortgage loan for which the mortgagor has filed for bankruptcy after the Settlement Date. Any mortgage loan which, on a 3-month rolling average basis, has made its scheduled principal and interest payments, will not be considered to be a 60+ Day Delinquent Loan. RE-PERFORMING 60+ DAY Each mortgage loan with respect to which, as of any date of determination, (x) DELINQUENT LOAN any portion of a monthly payment is, as of the last day of the prior collection period, two months or more past due and (y) with respect to which the mortgagor has made three monthly payments within the three calendar months preceding such date of determination. To the extent that, as of any date of determination, more than 20.00% of the mortgage loans (measured by scheduled principal balance) are Re-performing 60+ Day Delinquent Loans, the Re-performing 60+ Day Delinquent Loans constituting such excess shall be deemed to be 60+ Day Delinquent Loans. ROLLING SIX MONTH 60+ DAY With respect to any Distribution Date, the average of the percentage equivalents DELINQUENT PERCENTAGE: of the fractions determined for each of the six immediately preceding collection periods, the numerator of each of which is equal to the aggregate principal balance of mortgage loans that are 60+ Day Delinquent Loans as of the end of the day immediately preceding the end of each such collection period, and the denominator of which is the aggregate mortgage loan balance as of the end of the related collection period. 13 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- COLLATERAL OVERVIEW ------------------- The mortgage pool will consist of two loan groups, Loan Group 1 and Loan Group 2. Loan Group 1 will consist of two Sub-groups (Sub-group 1A and Sub-group 1B). The mortgage loans in Sub-group 1A are fixed rate, FHA insured, VA guaranteed FHA uninsured ("FHAUN"), VA non-guaranteed ("VAUN") and first lien mortgage loans. The mortgage loans in Sub-group 1B are fixed rate, conventional, one- to four-family, first and second lien mortgage loans. The mortgage loans in Loan Group 2 are adjustable rate, one- to four-family, first lien mortgage loans. Each of Sub-group 1A, Sub-group 1B and Loan Group 2 consists of Performing Mortgage Loans, Sub-Performing Mortgage Loans and Re-Performing Mortgage Loans. PERFORMING MORTGAGE LOANS - ------------------------- A "Performing Mortgage Loan" is a mortgage loan (which might be a Forbearance Plan Mortgage Loan or a Bankruptcy Plan Mortgage Loan) pursuant to which no payment due under the related mortgage note (or any modification thereto) prior to the Cut-off Date, is 30 days delinquent. A mortgage loan is "Delinquent," if the scheduled monthly payment of principal and interest on such mortgage loan which is payable by the related mortgagor under the related mortgage note (the "Monthly Payment") due on a due date is not paid by the close of business on the next scheduled due date for such mortgage loan. Thus, a mortgage loan for which the mortgagor failed to make the monthly payment on October 1, 2000 will be reported as Delinquent as of the close of business on November 1, 2000 if the payment is not made by such time. RE-PERFORMING MORTGAGE LOAN - --------------------------- A "Re-Performing Mortgage Loan" is a mortgage loan (that might be a Forbearance Plan Mortgage Loan or a Bankruptcy Plan Mortgage Loan) which had defaulted in the past and which is currently at least 90 days delinquent with respect to certain regular scheduled payments but which satisfies one of the following criteria (the "Re-Performance Test"): (i) the mortgagor has made at least three aggregate regular scheduled payments in the three calendar months preceding the Cut-off Date (regardless of either the timing of receipt of such payments or the payment history of such loans prior to August 1, 2000), or (ii) the mortgagor has made at least four aggregate regular scheduled payments in the four calendar months preceding the Cut-off Date (regardless of either the timing of receipt of such payments or the payment history of such loans prior to July 1, 2000), or (iii) the mortgagor has made at least five aggregate regular scheduled payments in the five calendar months preceding the Cut-off Date (regardless of either the timing of receipt of such payments or the payment history of such loans prior to June 1, 2000). SUB-PERFORMING MORTGAGE LOAN - ---------------------------- A "Sub-Performing Mortgage Loan" is a mortgage loan pursuant to which a payment due prior to the Cut-off Date under the terms of the related mortgage note (or any modification thereto), is at least 30 but not more than 89 days delinquent. Certain Sub-Performing Mortgage Loans have been modified in writing and are also characterized as follows: (i) "Forbearance Plan Mortgage Loan" is a mortgage loan in which the related mortgagor must make monthly payments ("Modified Scheduled Payments") in an amount at least equal to the sum of (i) the amount of the monthly scheduled payment of principal and interest determined in accordance with such mortgage loan's original amortization schedule ("Regular Scheduled Payments") plus (ii) an additional amount to be applied to pay down the total amount of scheduled monthly payments due thereon on or before the Cut-off Date but not received prior to the Cut-off Date plus the aggregate amount of tax and insurance advances made with respect to such mortgage loan to the extent remaining outstanding as of the Cut-off Date. (ii) "Bankruptcy Plan Mortgage Loan" is a mortgage loan in which the related mortgagor defaulted and, after default, became the subject of a case under Title 11 of the United States Code (the "Bankruptcy Code") and, as of the Cut-off Date, had a confirmed bankruptcy plan. Each such bankruptcy plan generally requires the related mortgagor to make Modified Scheduled Payments in an amount at least equal to (i) the Regular Scheduled Payment plus (ii) an additional amount sufficient to pay down overdue amounts resulting from the period of default, generally over a period of three to five years from the commencement of such bankruptcy plan. 14 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- ARREARAGE - --------- With respect to certain Delinquent mortgage loans, the total amount of scheduled monthly payments due thereon on or before the Cut-off Date but not received prior to the Cut-off Date, together with any outstanding servicing advances on such mortgage loans, is referred to as the "Arrearage." The Servicer has previously made advances in respect of the Arrearages. Any Arrearage shall not be included as part of the Trust Fund and, accordingly, payments with respect to Arrearage will not be payable to the Certificateholders as and when received. However, the Servicer shall be required to make servicing advances on Delinquent mortgage loans and make advances of delinquent payments of principal and interest on Delinquent mortgage loans (other than Simple Interest Mortgage Loans or REO Properties), each to the extent such advances are deemed recoverable, until such mortgage loans become current. FHA MORTGAGE LOANS - ------------------ The FHA Mortgage Loans will be insured by the Federal Housing Administration ("FHA") of the United States Department of Housing and Urban Development ("HUD") as authorized under the National Housing Act of 1934, as amended (the "National Housing Act"), and the United States Housing Act of 1937, as amended (the "United States Housing Act"). No FHA Mortgage Loan may have an interest rate or original principal amount exceeding the applicable FHA limits at the time of origination of such FHA Mortgage Loan. VA MORTGAGE LOANS - ----------------- The VA Mortgage Loans will be partially guaranteed by The United States Department of Veterans Affairs (the "VA") under the Servicemen's Readjustment Act of 1944, as amended. The Servicemen's Readjustment Act of 1944, as amended, permits a veteran (or in certain instances the spouse of a veteran) to obtain a mortgage loan guarantee by the VA covering mortgage financing of the purchase of a one- to four-family dwelling unit at interest rates permitted by the VA. The program has a current mortgage loan limit of $203,000, requires no down payment from the purchaser and permits the guarantee of mortgage loans of generally up to 30 years' duration. However, no VA Mortgage Loan will have an original principal amount greater than five times the amount of the related guarantee. FHAUN MORTGAGE LOANS - -------------------- The FHAUN Mortgage Loans were originated using FHA documents, but for various reasons, are not covered by FHA insurance. The Seller acquired the FHAUN Mortgage Loans without FHA insurance in effect. VAUN MORTGAGE LOANS - ------------------- The VAUN Mortgage Loans were originated using VA documents, but for various reasons, are not covered by a VA guarantee. The Seller acquired the VAUN Mortgage Loans without a VA guarantee in effect. 15 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- MORTGAGE LOAN CHARACTERISTICS LOAN GROUP 1: SUB-GROUP 1A AND SUB-GROUP 1B - ------------------------------------------- The following summarizes the characteristics of the mortgage loans (percentages are based on the aggregate principal balances as of November 1, 2000). The characteristics of the mortgage moans in the Prospectus Supplement will supersede the descriptions of the characteristics below. Aggregate Unpaid Principal Balance: $83,239,208.00 Aggregate Original Principal Balance: $91,444,075.07 Wtd. Avg. Gross Coupon: 9.823% Gross Coupon Range: 3.000% - 18.000% Average Principal Balance: $65,749.77 Principal Balance Range: $275.85 - $864,064.15 Average Original Principal Balance: $72,230.71 Original Principal Balance Range: $8,900.00 - $865,000.00 Wtd. Avg. Remaining Term: 266 months Remaining Term Range: 2 - 359 months Wtd. Avg. Seasoning: 40 months Seasoning Range: 1 - 411 months Wtd. Avg. CLTV: 83.755% CLTV Range: 3.594% - 234.127%(1) Wtd. Avg. Net Coupon: 9.547% Loans with Prepayment Penalties: 22.09% Percentage of Second Lien Loans: 0.35% Percentage of Simple Interest Loans: 2.62% Percentage of Loans with Lender Paid Mortgage Insurance: 35.70% Percentage of FHA Insured Loans: 7.38% Percentage of FHAUN Loans: 3.68% Percentage of VA Guaranteed Loans: 1.55% Percentage of VAUN Loans: 0.26% Percentage of Subprime Loans: 58.98% Percentage of Performing Loans: 82.00% Percentage of Seller Financed Loans: 11.82% Percentage of Sub-Performing Loans: 12.72% Sub-Performing with Forbearance Plan: 0.55% Sub-Performing with Bankruptcy Plan: 0.94% Percentage of Re-Performing Loans: 5.28% Re-Performing with Forbearance Plan: 1.39% Re-Performing with Bankruptcy Plan: 2.32% Percentage of Delinquent Loans: 12.72% 30-59 Days Delinquent: 8.14% 60-89 Days Delinquent: 4.58% Maximum ZIP Code Concentration (%): 1.03% Maximum ZIP Code Concentration (ZIP): 75034 16 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- Geographic Concentration (Top 4 States): New York 21.78% California 13.86% Florida 8.01% Texas 7.91% (1) The loan with a CLTV of 243.127% is being re-examined. The maximum CLTV will not be greater than 125.000% in the event that this loan is removed from the mortgage pool. 17 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- MORTGAGE LOAN CHARACTERISTICS SUB-GROUP 1A - FHA/VA/FHAUN/VAUN The following summarizes the characteristics of the mortgage loans (percentages are based on the aggregate principal balances as of November 1, 2000). The characteristics of the mortgage loans in the Prospectus Supplement will supersede the descriptions of the characteristics below. Aggregate Unpaid Principal Balance: $10,710,594.65 Aggregate Original Principal Balance: $15,750,092.31 Wtd. Avg. Gross Coupon: 8.198% Gross Coupon Range: 5.000% - 16.500% Average Principal Balance: $27,604.63 Principal Balance Range: $275.85 - $249,595.92 Average Original Principal Balance: $40,593.02 Original Principal Balance Range: $8,900.00 - $252,400.00 Wtd. Avg. Remaining Term: 270 months Remaining Term Range: 2 - 359 months Wtd. Avg. Seasoning: 83 months Seasoning Range: 1 - 411 months Wtd. Avg. CLTV: 99.716% CLTV Range: 51.700% - 234.127% (1) Wtd. Avg. Net Coupon: 8.198% Loans with Prepayment Penalties: 0.00% Percentage of Second Lien Loans: 0.00% Percentage of Simple Interest Loans: 0.00% Percentage of Loans with Lender Paid Mortgage Insurance: 0.00% Percentage of FHA Insured Loans: 57.36% Percentage of FHAUN Loans: 28.60% Percentage of VA Guaranteed Loans: 12.06% Percentage of VAUN Loans: 1.99% Percentage of Subprime Loans: 0.00% Percentage of Performing Loans: 61.79% Percentage of Seller Financed Loans: 0.00% Percentage of Sub-Performing Loans: 30.32% Sub-Performing with Forbearance Plan: 0.61% Sub-Performing with Bankruptcy Plan: 3.82% Percentage of Re-Performing Loans: 7.90% Re-Performing with Forbearance Plan: 4.14% Re-Performing with Bankruptcy Plans: 0.00% Percentage of Delinquent Loans: 30.32% 30-59 Days Delinquent: 18.35% 60-89 Days Delinquent: 11.97% Maximum ZIP Code Concentration (%): 3.13% Maximum ZIP Code Concentration (ZIP): 10469 18 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- Geographic Concentration (Top 4 States): Florida 15.47% New York 10.66% Ohio 8.24% Pennsylvania 8.04% (1) The loan with a CLTV of 243.127% is being re-examined. The maximum CLTV will not be greater than 125.000% in the event that this loan is removed from the mortgage pool. 19 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- MORTGAGE LOAN CHARACTERISTICS SUB-GROUP 1B - FIXED-RATE, NON-FHA/VA/FHAUN/VAUN The following summarizes the characteristics of the mortgage loans (percentages are based on the aggregate principal balances as of November 1, 2000). The characteristics of the mortgage loans in the Prospectus Supplement will supersede the descriptions of the characteristics below. Aggregate Unpaid Principal Balance: $72,528,613.35 Aggregate Original Principal Balance: $75,693,982.76 Wtd. Avg. Gross Coupon: 10.063% Gross Coupon Range: 3.000% - 18.000% Average Principal Balance: $82,606.62 Principal Balance Range: $9,816.53 - $864,064.15 Average Original Principal Balance: $86,211.83 Original Principal Balance Range: $11,808.28 - $865,000.00 Wtd. Avg. Remaining Term: 265 months Remaining Term Range: 8 - 358 months Wtd. Avg. Seasoning: 33 months Seasoning Range: 2 - 353 months Wtd. Avg. CLTV: 81.398% CLTV Range: 3.594% - 122.440% Wtd. Avg. Net Coupon: 9.747% Loans with Prepayment Penalties: 25.35% Percentage of Second Lien Loans: 0.41% Percentage of Simple Interest Loans: 3.01% Percentage of Loans with Lender Paid Mortgage Insurance: 35.70% Percentage of FHA Insured Loans: 0.00% Percentage of FHAUN Loans: 0.00% Percentage of VA Guaranteed Loans: 0.00% Percentage of VAUN Loans: 0.00% Percentage of Subprime Loans: 67.69% Percentage of Performing Loans: 84.99% Percentage of Seller Financed Loans: 13.56% Percentage of Sub-Performing Loans: 10.12% Sub-Performing with Forbearance Plan: 0.54% Sub-Performing with Bankruptcy Plan: 0.51% Percentage of Re-Performing Loans: 4.89% Re-Performing with Forbearance Plan: 0.98% Re-Performing with Bankruptcy Plan: 2.66% Percentage of Delinquent Loans: 10.12% 30-59 Days Delinquent: 6.63% 60-89 Days Delinquent: 3.49% Maximum ZIP Code Concentration (%) 1.19% Maximum ZIP Code Concentration (ZIP) 75034 20 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- Geographic Concentration (Top 4 States): New York 23.43% California 14.98% Texas 8.32% Florida 6.91% 21 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- MORTGAGE LOAN CHARACTERISTICS LOAN GROUP 2 - ARMS - ------------------- The following summarizes the characteristics of the mortgage loans (percentages are based on the aggregate principal balances as of November 1, 2000). The characteristics of the mortgage loans in the Prospectus Supplement will supersede the descriptions of the characteristics below. Aggregate Unpaid Principal Balance: $82,038,828.61 Aggregate Original Principal Balance: $83,236,289.02 Wtd. Avg. Gross Coupon: 10.728% Gross Coupon Range: 6.500% - 16.500% Wtd. Avg. Gross Margin: 6.025% Gross Margin Range: 2.000% - 9.750% Wtd. Avg. Life Cap (Gross): 16.822% Gross Life Cap Range: 10.000% - 21.500% Wtd. Avg. Life Floor (Gross): 7.633% Gross Life Floor Range: 0.000% - 14.880% Average Principal Balance: $114,260.21 Principal Balance Range: $13,533.57 - $633,602.96 Average Original Principal Balance: $115,927.98 Original Principal Balance Range: $14,000.00 - $650,000.00 Wtd. Avg. Remaining Term: 338 months Remaining Term Range: 109 - 357 months Wtd. Avg. Seasoning: 19 months Seasoning Range: 3 - 204 months Wtd. Avg. CLTV: 79.269% CLTV Range: 17.778% - 117.209% Wtd. Avg. Net Coupon: 10.263% Wtd. Avg. Periodic Interest Cap: 1.308% (1) Periodic Interest Cap Range: 0.000% - 2.000% (1) Wtd. Avg. Months to Interest Roll: 16 months Months to Interest Roll Range: 0 - 72 months Wtd. Avg. Interest Roll Frequency: 6 months Interest Roll Frequency Range: 6 - 36 months Wtd. Avg. Initial Rate Cap: 1.681% (2) Initial Rate Cap Range: 0.000% - 6.000% (2) Index Six - Month LIBOR: 92.49% 1-YR CMT: 7.39% Other: 0.13% Mortgage Interest Rates by Index Six-Month LIBOR: 10.94% 1-YR CMT: 8.09% Other: 8.75% 22 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- Gross Margin by Index Six-Month LIBOR: 6.29% 1-YR CMT: 2.83% Other: 2.50% Loans with Prepayment Penalties: 68.02% Percentage of Second Lien Loans: 0.00% Percentage of Simple Interest Loans: 0.09% Percentage of Loans with Lender Paid Mortgage Insurance: 51.11% Percentage of FHA Insured Loans: 1.52% Percentage of FHAUN Loans: 0.49% Percentage of VA Guaranteed Loans: 0.21% Percentage of VAUN Loans: 0.00% Percentage of Subprime Loans: 97.22% Percentage of Performing Loans: 85.54% Percentage of Seller Financed Loans: 0.00% Percentage of Sub-Performing Loans: 11.53% Sub-Performing with Forbearance Plan: 0.43% Sub-Performing with Bankruptcy Plan: 0.10% Percentage of Re-Performing Loans: 2.94% Re-Performing with Forbearance Plan: 0.90% Re-Performing with Bankruptcy Plan: 1.41% Percentage of Delinquent Loans: 11.53% 30-59 Days Delinquent: 9.04% 60-89 Days Delinquent: 2.48% Maximum ZIP Code Concentration (%) 1.15% Maximum ZIP Code Concentration (ZIP) 10504 Geographic concentration (Top 4 States): California 30.85% Illinois 5.86% Colorado 5.50% Michigan 5.24% (1) Values exclude 1 loan with periodic rate cap equal to zero. (2) Values exclude 3 loans with initial rate cap equal to zero. 23 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- DESCRIPTION OF THE COLLATERAL LOAN GROUP 1 GROSS MORTGAGE INTEREST RATE % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE 2.501 - 3.000 1 44,561.87 0.05 4.501 - 5.000 1 132,295.55 0.16 5.501 - 6.000 15 688,004.73 0.83 6.001 - 6.500 5 342,092.60 0.41 6.501 - 7.000 171 2,408,663.32 2.89 7.001 - 7.500 36 3,459,048.37 4.16 7.501 - 8.000 95 5,172,334.00 6.21 8.001 - 8.250 27 1,744,216.70 2.10 8.251 - 8.500 111 4,196,116.11 5.04 8.501 - 8.750 30 2,542,320.10 3.05 8.751 - 9.000 61 5,899,685.31 7.09 9.001 - 9.250 30 3,586,708.86 4.31 9.251 - 9.500 68 7,279,795.20 8.75 9.501 - 9.750 29 2,841,036.29 3.41 9.751 - 10.000 118 9,418,621.88 11.32 10.001 - 10.250 35 3,616,121.84 4.34 10.251 - 10.500 75 7,339,866.50 8.82 10.501 - 10.750 39 3,238,543.22 3.89 10.751 - 11.000 61 5,298,157.83 6.36 11.001 - 11.250 24 1,643,375.47 1.97 11.251 - 11.500 33 2,077,798.39 2.50 11.501 - 11.750 19 1,067,119.40 1.28 11.751 - 12.000 48 2,651,588.59 3.19 12.001 - 12.250 16 1,034,857.04 1.24 12.251 - 12.500 23 1,319,421.82 1.59 12.501 - 12.750 10 488,562.92 0.59 12.751 - 13.000 18 781,115.15 0.94 13.001 - 13.250 11 450,253.53 0.54 13.251 - 13.500 9 272,868.38 0.33 13.501 - 13.750 7 418,609.55 0.50 13.751 - 14.000 14 861,153.09 1.03 14.001 - 14.250 5 227,165.35 0.27 14.251 - 14.500 3 81,648.07 0.10 14.501 - 14.750 2 98,554.75 0.12 14.751 - 15.000 5 199,075.04 0.24 15.001 - 15.250 1 41,924.10 0.05 15.251 - 15.500 5 142,887.69 0.17 15.501 - 15.750 1 64,566.99 0.08 15.751 - 16.000 1 37,389.26 0.04 16.251 - 16.500 2 16,181.60 0.02 17.751 - 18.000 1 14,901.54 0.02 - -------------------------------------------------------------------------------- 1,266 83,239,208.00 100.00 24 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- ORIGINAL TERM % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE 25 - 36 2 63,192.54 0.08 37 - 48 1 12,144.55 0.01 49 - 60 2 24,935.71 0.03 61 - 72 2 22,869.35 0.03 73 - 84 4 92,249.52 0.11 85 - 96 3 124,985.82 0.15 97 - 108 6 150,714.68 0.18 109 - 120 32 981,595.07 1.18 121 - 132 4 105,748.75 0.13 133 - 144 9 290,502.55 0.35 145 - 156 6 225,217.43 0.27 157 - 168 10 358,901.85 0.43 169 - 180 285 18,400,028.34 22.11 181 - 192 2 72,662.82 0.09 193 - 204 7 262,963.04 0.32 205 - 216 4 203,412.12 0.24 229 - 240 68 3,448,739.56 4.14 241 - 252 5 224,233.74 0.27 253 - 264 4 199,428.80 0.24 265 - 276 1 50,142.91 0.06 289 - 300 29 1,244,941.38 1.50 301 - 312 2 335,547.55 0.40 313 - 324 1 126,630.73 0.15 325 - 336 5 694,950.95 0.83 337 - 348 8 467,835.07 0.56 349 - 360 755 54,761,738.66 65.79 361 - 372 3 142,920.33 0.17 373 - 384 1 30,499.83 0.04 409 - 420 4 96,511.60 0.12 421 - 432 1 22,962.75 0.03 - -------------------------------------------------------------------------------- 1,266 83,239,208.00 100.00 25 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- CURRENT MORTGAGE LOAN AMOUNTS % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE 0.01 - 25,000.00 374 3,304,956.91 3.97 25,000.01 - 50,000.00 281 10,573,433.80 12.70 50,000.01 - 75,000.00 232 14,257,777.78 17.13 75,000.01 - 100,000.00 125 10,701,470.53 12.86 100,000.01 - 150,000.00 130 15,978,864.76 19.20 150,000.01 - 200,000.00 59 10,213,298.20 12.27 200,000.01 - 250,000.00 36 8,158,836.13 9.80 250,000.01 - 300,000.00 14 3,783,701.91 4.55 300,000.01 - 350,000.00 7 2,243,283.65 2.69 350,000.01 - 400,000.00 3 1,095,715.65 1.32 400,000.01 - 450,000.00 1 418,069.13 0.50 450,000.01 - 500,000.00 1 456,125.66 0.55 500,000.01 - 550,000.00 1 548,903.67 0.66 600,000.01 - 650,000.00 1 640,706.07 0.77 850,000.01 - 900,000.00 1 864,064.15 1.04 - -------------------------------------------------------------------------------- 1,266 83,239,208.00 100.00 COMBINED LOAN-TO-VALUE RATIO % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE 0.001 - 5.000 1 44,898.84 0.05 5.001 - 10.000 1 74,226.51 0.09 10.001 - 15.000 1 19,671.90 0.02 20.001 - 25.000 1 24,436.96 0.03 25.001 - 30.000 3 95,122.74 0.11 30.001 - 35.000 3 123,102.16 0.15 35.001 - 40.000 5 347,314.04 0.42 40.001 - 45.000 3 175,888.89 0.21 45.001 - 50.000 12 466,000.50 0.56 50.001 - 55.000 12 1,515,449.69 1.82 55.001 - 60.000 27 1,310,645.83 1.57 60.001 - 65.000 41 3,506,508.40 4.21 65.001 - 70.000 62 3,728,247.45 4.48 70.001 - 75.000 105 9,857,237.80 11.84 75.001 - 80.000 173 16,398,553.42 19.70 80.001 - 85.000 113 9,731,152.36 11.69 85.001 - 90.000 139 10,683,568.99 12.83 90.001 - 95.000 81 5,278,843.34 6.34 95.001 - 100.000 376 14,984,614.94 18.00 100.001 - 105.000 77 3,035,791.58 3.65 105.001 - 110.000 15 882,508.06 1.06 110.001 - 115.000 5 261,742.73 0.31 115.001 - 120.000 6 389,712.96 0.47 120.001 - 125.000 3 303,293.65 0.36 230.001 - 235.000 1 674.26 0.00 - -------------------------------------------------------------------------------- 1,266 83,239,208.00 100.00 26 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- GEOGRAPHICAL DISTRIBUTION OF MORTGAGED PROPERTIES % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL STATE LOANS PRINCIPAL BALANCE BALANCE Alabama 17 701,780.36 0.84 Alaska 2 99,874.50 0.12 Arizona 24 674,044.04 0.81 Arkansas 6 105,490.66 0.13 California 97 11,534,880.14 13.86 Colorado 8 480,556.21 0.58 Connecticut 12 1,236,792.65 1.49 Delaware 3 184,230.42 0.22 District of Columbia 1 63,207.67 0.08 Florida 137 6,669,023.89 8.01 Georgia 27 1,179,296.20 1.42 Hawaii 5 527,944.91 0.63 Idaho 1 52,052.20 0.06 Illinois 26 1,814,031.52 2.18 Indiana 32 1,875,039.07 2.25 Iowa 2 65,633.37 0.08 Kansas 4 224,381.42 0.27 Kentucky 12 610,436.52 0.73 Louisiana 16 450,443.15 0.54 Maine 1 59,017.83 0.07 Maryland 21 2,003,080.28 2.41 Massachusetts 16 1,571,843.46 1.89 Michigan 78 4,788,844.39 5.75 Minnesota 3 186,753.36 0.22 Mississippi 12 119,623.67 0.14 Missouri 17 864,846.36 1.04 Montana 1 36,634.63 0.04 Nevada 7 558,412.92 0.67 New Hampshire 4 242,547.66 0.29 New Jersey 40 3,891,085.82 4.67 New Mexico 10 422,940.97 0.51 New York 126 18,132,553.39 21.78 North Carolina 55 2,159,479.92 2.59 Ohio 48 2,786,863.01 3.35 Oklahoma 14 554,378.23 0.67 Oregon 10 828,999.28 1.00 Pennsylvania 121 3,444,707.70 4.14 Puerto Rico 2 65,973.48 0.08 Rhode Island 1 123,015.71 0.15 South Carolina 17 1,011,045.93 1.21 Tennessee 36 1,184,695.52 1.42 Texas 136 6,582,931.68 7.91 Utah 2 99,448.95 0.12 Virginia 39 1,665,056.75 2.00 Washington 13 1,162,747.69 1.40 West Virginia 2 27,266.09 0.03 Wisconsin 2 115,274.42 0.14 - -------------------------------------------------------------------------------- 1,266 83,239,208.00 100.00 27 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- PROPERTY TYPE % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL PROPERTY LOANS PRINCIPAL BALANCE BALANCE 2-Family 63 7,102,194.73 8.53 3-Family 11 1,583,872.95 1.90 4-Family 7 557,121.60 0.67 Condo 30 1,321,401.94 1.59 High Rise Condo 2 145,261.36 0.17 Manufactured 11 604,561.49 0.73 Mixed Use 1 249,595.92 0.30 Mobile Home 18 962,508.08 1.16 PUD 11 1,810,517.10 2.18 Single Family 1,104 68,282,320.87 82.03 Townhouse 8 619,851.96 0.74 - -------------------------------------------------------------------------------- 1,266 83,239,208.00 100.00 OWNER OCCUPANCY % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL OWNER OCCUPANCY LOANS PRINCIPAL BALANCE BALANCE Investment 111 5,806,552.89 6.98 Primary 1,142 76,311,429.95 91.68 Secondary 13 1,121,225.16 1.35 - -------------------------------------------------------------------------------- 1,266 83,239,208.00 100.00 DOCUMENTATION LEVEL % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL DOCUMENTATION LOANS PRINCIPAL BALANCE BALANCE Alternative 91 9,544,304.66 11.47 Full 798 49,374,399.30 59.32 Limited 40 3,944,937.11 4.74 Missing 26 1,700,532.28 2.04 None 211 9,122,232.44 10.96 Stated 94 8,964,966.12 10.77 Streamlined 6 587,836.09 0.71 - -------------------------------------------------------------------------------- 1,266 83,239,208.00 100.00 28 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- LOAN PURPOSE % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL LOAN PURPOSE LOANS PRINCIPAL BALANCE BALANCE Cash Out 373 32,296,246.14 38.80 Purchase 793 42,125,540.82 50.61 Refinance 100 8,817,421.04 10.59 - -------------------------------------------------------------------------------- 1,266 83,239,208.00 100.00 STATUS LEVEL % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL OTS STATUS LOANS PRINCIPAL BALANCE BALANCE 30 Days Past Due 123 6,774,668.65 8.14 60 Days Past Due 54 3,811,861.43 4.58 Current 1,025 68,258,869.55 82.00 Re-performing 64 4,393,808.37 5.28 - -------------------------------------------------------------------------------- 1,266 83,239,208.00 100.00 29 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- DESCRIPTION OF THE COLLATERAL LOAN GROUP 2 GROSS MORTGAGE INTEREST RATE % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE 6.001 - 6.500 1 109,216.27 0.13 6.501 - 7.000 3 332,942.03 0.41 7.001 - 7.500 9 2,215,788.36 2.70 7.501 - 8.000 19 1,939,603.27 2.36 8.001 - 8.250 6 1,009,397.47 1.23 8.251 - 8.500 9 1,420,934.32 1.73 8.501 - 8.750 10 1,673,399.01 2.04 8.751 - 9.000 15 1,718,160.32 2.09 9.001 - 9.250 19 3,003,475.13 3.66 9.251 - 9.500 23 3,712,006.75 4.52 9.501 - 9.750 34 5,581,445.90 6.80 9.751 - 10.000 46 6,830,192.27 8.33 10.001 - 10.250 33 4,575,342.13 5.58 10.251 - 10.500 47 5,829,731.56 7.11 10.501 - 10.750 48 6,223,711.82 7.59 10.751 - 11.000 62 7,435,995.09 9.06 11.001 - 11.250 34 2,966,377.61 3.62 11.251 - 11.500 31 3,567,910.27 4.35 11.501 - 11.750 33 2,777,953.88 3.39 11.751 - 12.000 20 1,547,750.36 1.89 12.001 - 12.250 28 2,340,736.49 2.85 12.251 - 12.500 36 2,937,832.44 3.58 12.501 - 12.750 19 1,868,380.62 2.28 12.751 - 13.000 20 1,686,147.37 2.06 13.001 - 13.250 25 2,020,317.94 2.46 13.251 - 13.500 19 1,237,170.23 1.51 13.501 - 13.750 21 1,434,687.31 1.75 13.751 - 14.000 18 1,830,224.43 2.23 14.001 - 14.250 11 648,975.71 0.79 14.251 - 14.500 10 815,519.94 0.99 14.501 - 14.750 2 337,290.03 0.41 14.751 - 15.000 3 146,548.37 0.18 15.001 - 15.250 1 22,255.26 0.03 15.251 - 15.500 1 84,911.90 0.10 16.001 - 16.250 1 43,752.93 0.05 16.251 - 16.500 1 112,743.82 0.14 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 30 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- ORIGINAL TERM % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE 169 - 180 17 1,193,963.22 1.46 229 - 240 2 236,574.87 0.29 289 - 300 3 274,395.49 0.33 349 - 360 696 80,333,895.03 97.92 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 CURRENT MORTGAGE LOAN AMOUNTS % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE 0.01 - 25,000.00 19 399,315.18 0.49 25,000.01 - 50,000.00 104 4,207,455.64 5.13 50,000.01 - 75,000.00 142 8,903,244.98 10.85 75,000.01 - 100,000.00 138 11,987,447.37 14.61 100,000.01 - 150,000.00 159 19,068,872.26 23.24 150,000.01 - 200,000.00 72 12,291,029.12 14.98 200,000.01 - 250,000.00 34 7,694,293.34 9.38 250,000.01 - 300,000.00 20 5,486,126.44 6.69 300,000.01 - 350,000.00 12 3,788,920.83 4.62 350,000.01 - 400,000.00 4 1,457,007.97 1.78 400,000.01 - 450,000.00 6 2,605,423.79 3.18 450,000.01 - 500,000.00 5 2,385,394.71 2.91 500,000.01 - 550,000.00 1 509,275.35 0.62 600,000.01 - 650,000.00 2 1,255,021.63 1.53 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 31 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- COMBINED LOAN-TO-VALUE RATIO % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE 15.001 - 20.000 2 99,238.00 0.12 20.001 - 25.000 2 64,742.68 0.08 25.001 - 30.000 2 120,886.65 0.15 30.001 - 35.000 1 99,822.51 0.12 35.001 - 40.000 8 758,526.27 0.92 40.001 - 45.000 4 654,552.79 0.80 45.001 - 50.000 8 618,508.02 0.75 50.001 - 55.000 8 424,088.87 0.52 55.001 - 60.000 21 1,676,285.97 2.04 60.001 - 65.000 54 5,123,089.61 6.24 65.001 - 70.000 80 7,178,606.11 8.75 70.001 - 75.000 95 10,176,395.94 12.40 75.001 - 80.000 158 17,812,105.08 21.71 80.001 - 85.000 132 18,922,402.05 23.07 85.001 - 90.000 95 13,610,409.84 16.59 90.001 - 95.000 11 1,286,592.05 1.57 95.001 - 100.000 28 2,797,924.17 3.41 100.001 - 105.000 5 261,209.80 0.32 105.001 - 110.000 1 58,094.15 0.07 110.001 - 115.000 1 32,795.68 0.04 115.001 - 120.000 2 262,552.37 0.32 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 32 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- GEOGRAPHICAL DISTRIBUTION OF MORTGAGED PROPERTIES % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL STATE LOANS PRINCIPAL BALANCE BALANCE Alabama 2 155,873.04 0.19 Arizona 14 1,401,104.35 1.71 Arkansas 1 53,128.46 0.06 California 147 25,308,014.33 30.85 Colorado 38 4,510,006.14 5.50 Connecticut 12 1,299,037.62 1.58 Delaware 2 205,595.23 0.25 District of Columbia 1 81,416.81 0.10 Florida 33 2,967,129.58 3.62 Georgia 12 1,423,683.07 1.74 Hawaii 1 55,193.49 0.07 Idaho 4 548,433.85 0.67 Illinois 42 4,810,730.06 5.86 Indiana 15 775,769.52 0.95 Iowa 4 174,154.01 0.21 Kansas 3 178,987.08 0.22 Kentucky 6 404,277.91 0.49 Louisiana 7 301,740.02 0.37 Maine 3 194,407.40 0.24 Maryland 8 968,083.84 1.18 Massachusetts 28 2,996,878.18 3.65 Michigan 53 4,299,390.37 5.24 Minnesota 17 1,824,516.78 2.22 Missouri 12 905,373.11 1.10 Montana 3 320,222.87 0.39 Nebraska 3 215,164.37 0.26 Nevada 11 2,091,065.90 2.55 New Hampshire 3 321,965.85 0.39 New Jersey 34 3,449,659.75 4.20 New Mexico 2 166,644.35 0.20 New York 18 3,372,913.01 4.11 North Carolina 23 1,434,024.37 1.75 Ohio 37 2,574,589.20 3.14 Oklahoma 5 349,281.38 0.43 Oregon 7 576,232.25 0.70 Pennsylvania 16 1,706,425.08 2.08 Rhode Island 3 236,311.84 0.29 South Carolina 4 278,521.29 0.34 Tennessee 11 1,231,273.63 1.50 Texas 36 3,562,983.64 4.34 Utah 15 1,829,713.21 2.23 Virginia 4 643,242.83 0.78 Washington 10 1,323,359.79 1.61 Wisconsin 7 410,075.70 0.50 Wyoming 1 102,234.05 0.12 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 33 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- PROPERTY TYPE % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL PROPERTY LOANS PRINCIPAL BALANCE BALANCE 2-Family 12 1,474,423.94 1.80 3-Family 7 889,947.18 1.08 4-Family 4 449,276.62 0.55 Condo 20 2,486,844.47 3.03 Low Rise Condo 1 95,018.26 0.12 Manufactured 11 706,580.10 0.86 Mobile Home 15 1,162,104.10 1.42 Multi-Family (5+) 1 112,387.06 0.14 PUD 26 3,894,947.32 4.75 Single Family 617 70,443,213.50 85.87 Townhouse 4 324,086.06 0.40 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 OWNER OCCUPANCY % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL OWNER OCCUPANCY LOANS PRINCIPAL BALANCE BALANCE Investment 64 4,432,022.59 5.40 Primary 651 77,025,815.49 93.89 Secondary 3 580,990.53 0.71 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 DOCUMENTATION LEVEL % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL DOCUMENTATION LOANS PRINCIPAL BALANCE BALANCE Alternative 28 2,996,353.94 3.65 Full 486 55,979,136.53 68.23 Limited 34 4,120,622.94 5.02 Missing 7 733,450.90 0.89 Stated 154 16,972,183.06 20.69 Streamlined 9 1,237,081.24 1.51 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 34 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- LOAN PURPOSE % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL LOAN PURPOSE LOANS PRINCIPAL BALANCE BALANCE Cash Out 381 44,090,628.54 53.74 Purchase 262 28,517,946.96 34.76 Refinance 75 9,430,253.11 11.49 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 GROSS MARGIN % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE 1.001 - 2.000 16 1,046,492.38 1.28 2.001 - 3.000 33 4,914,767.27 5.99 3.001 - 4.000 10 856,293.88 1.04 4.001 - 5.000 34 3,701,872.38 4.51 5.001 - 6.000 159 20,814,470.21 25.37 6.001 - 7.000 392 44,835,666.57 54.65 7.001 - 8.000 54 4,529,623.54 5.52 8.001 - 9.000 13 859,124.92 1.05 9.001 - 10.000 7 480,517.46 0.59 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 PERIODIC INTEREST CAP % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL INTEREST CAP LOANS PRINCIPAL BALANCE BALANCE 0.00000000 1 105,352.14 0.13 1.00000000 353 36,273,674.87 44.22 1.50000000 337 40,902,257.62 49.86 2.00000000 27 4,757,543.98 5.80 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 INITIAL INTEREST CAP % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL INTEREST CAP LOANS PRINCIPAL BALANCE BALANCE 0.000 3 229,908.87 0.28 1.000 208 22,802,630.48 27.79 1.400 1 80,678.09 0.10 1.500 318 40,287,460.13 49.11 2.000 27 3,035,009.17 3.70 3.000 160 15,159,576.33 18.48 6.000 1 443,565.54 0.54 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 35 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- LIFE FLOOR % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE Life Floor = 0.000 168 21,172,646.00 25.81 0.00 - 0.50 9 599,924.93 0.73 0.50 - 1.00 3 269,454.59 0.33 1.00 - 1.50 4 268,044.43 0.33 1.50 - 2.00 4 367,377.60 0.45 2.00 - 2.50 2 199,898.43 0.24 2.50 - 3.00 2 116,259.63 0.14 3.00 - 3.50 1 32,795.68 0.04 7.00 - 7.50 3 774,361.23 0.94 7.50 - 8.00 1 92,635.27 0.11 8.00 - 8.50 12 2,195,315.98 2.68 8.50 - 9.00 24 3,282,780.66 4.00 9.00 - 9.50 31 4,964,115.96 6.05 9.50 - 10.00 70 9,574,165.62 11.67 10.00 - 10.50 82 9,798,011.29 11.94 10.50 - 11.00 100 11,652,608.69 14.20 11.00 - 11.50 63 5,610,534.84 6.84 11.50 - 12.00 47 3,638,186.43 4.43 12.00 - 12.50 42 3,464,370.22 4.22 12.50 - 13.00 19 1,383,985.50 1.69 13.00 - 13.50 17 1,269,795.93 1.55 13.50 - 14.00 6 618,414.75 0.75 14.00 - 14.50 7 650,779.36 0.79 14.50 - 15.00 1 42,365.59 0.05 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 36 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- LIFE CAP % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL RANGE LOANS PRINCIPAL BALANCE BALANCE 9.501 - 10.000 2 139,214.37 0.17 10.001 - 10.500 9 599,924.93 0.73 10.501 - 11.000 2 189,652.78 0.23 11.001 - 11.500 5 321,289.35 0.39 11.501 - 12.000 8 914,162.11 1.11 12.001 - 12.500 7 1,165,669.75 1.42 12.501 - 13.000 5 446,179.58 0.54 13.001 - 13.500 5 1,045,656.81 1.27 13.501 - 14.000 8 1,377,318.77 1.68 14.001 - 14.500 11 2,101,349.85 2.56 14.501 - 15.000 18 2,405,401.78 2.93 15.001 - 15.500 21 3,100,196.35 3.78 15.501 - 16.000 52 6,701,627.05 8.17 16.001 - 16.500 62 8,301,780.69 10.12 16.501 - 17.000 108 14,583,288.80 17.78 17.001 - 17.500 106 11,396,690.60 13.89 17.501 - 18.000 107 11,606,504.54 14.15 18.001 - 18.500 68 5,589,983.61 6.81 18.501 - 19.000 37 3,777,098.68 4.60 19.001 - 19.500 35 2,786,077.66 3.40 19.501 - 20.000 15 1,144,066.01 1.39 20.001 - 20.500 12 824,647.47 1.01 20.501 - 21.000 7 1,137,377.14 1.39 21.001 - 21.500 8 383,669.93 0.47 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 STATUS LEVEL % OF CUT-OFF DATE NUMBER OF MORTGAGE AGGREGATE UNPAID AGGREGATE PRINCIPAL OTS STATUS LOANS PRINCIPAL BALANCE BALANCE 30 Days Past Due 60 7,418,983.51 9.04 60 Days Past Due 18 2,037,097.81 2.48 Current 615 70,174,312.12 85.54 Re-performing 25 2,408,435.17 2.94 - -------------------------------------------------------------------------------- 718 82,038,828.61 100.00 37 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- BOND SUMMARY (TO CALL) - ---------------------- The following tables are based on assumed mortgage loan groups with different characteristics from the characteristics described in the collateral summary and tables on the preceding pages. A-1F (TO CALL) - ----------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - ----------------------------------------------------------------------------------------------------------------- Average Life 8.44 1.96 1.26 1.01 0.83 0.65 Modified Duration 5.77 1.72 1.15 0.93 0.77 0.61 First Payment 12 / 00 12 / 00 12 / 00 12 / 00 12 / 00 12 / 00 Last Payment 4 / 13 3 / 05 9 / 03 2 / 03 10 / 02 5 / 02 A-2F (TO CALL) - ----------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - ----------------------------------------------------------------------------------------------------------------- Average Life 15.62 7.32 4.97 3.96 3.10 2.04 Modified Duration 8.81 5.35 3.95 3.25 2.62 1.82 First Payment 4 / 13 3 / 05 9 / 03 2 / 03 10 / 02 5 / 02 Last Payment 3 / 20 3 / 12 10 / 08 7 / 07 10 / 06 9 / 03 A-1A (TO CALL) - ----------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - ----------------------------------------------------------------------------------------------------------------- Average Life 20.70 5.23 3.32 2.52 1.93 1.25 Modified Duration 10.19 3.76 2.61 2.07 1.64 1.12 First Payment 12 / 00 12 / 00 12 / 00 12 / 00 12 / 00 12 / 00 Last Payment 5 / 28 4 / 14 5 / 10 5 / 08 1 / 07 8 / 05 M-1 (TO CALL) - ----------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - ----------------------------------------------------------------------------------------------------------------- Average Life 24.61 9.08 6.00 4.99 4.59 4.62 Modified Duration 10.34 6.03 4.46 3.89 3.68 3.72 First Payment 11 / 20 6 / 05 1 / 04 4 / 04 7 / 04 2 / 05 Last Payment 5 / 28 4 / 14 5 / 10 5 / 08 1 / 07 8 / 05 38 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- BOND SUMMARY (TO CALL) M-2 (TO CALL) - ----------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - ----------------------------------------------------------------------------------------------------------------- Average Life 24.61 9.08 5.99 4.89 4.31 4.02 Modified Duration 9.81 5.86 4.36 3.76 3.42 3.26 First Payment 11 / 20 6 / 05 12 / 03 2 / 04 3 / 04 6 / 04 Last Payment 5 / 28 4 / 14 5 / 10 5 / 08 1 / 07 8 / 05 B-1 (TO CALL) - ----------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - ----------------------------------------------------------------------------------------------------------------- Average Life 24.61 9.08 5.98 4.85 4.20 3.72 Modified Duration 9.57 5.79 4.31 3.70 3.32 3.03 First Payment 11 / 20 6 / 05 12 / 03 12 / 03 1 / 04 2 / 04 Last Payment 5 / 28 4 / 14 5 / 10 5 / 08 1 / 07 8 / 05 B-2 (TO CALL) - ----------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - ----------------------------------------------------------------------------------------------------------------- Average Life 24.57 9.00 5.90 4.76 4.10 3.56 Modified Duration 9.57 5.76 4.27 3.65 3.26 2.91 First Payment 11 / 20 6 / 05 12 / 03 12 / 03 12 / 03 1 / 04 Last Payment 5 / 28 4 / 14 5 / 10 5 / 08 1 / 07 8 / 05 39 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- BOND SUMMARY (TO MATURITY) The following tables are based on assumed mortgage loan groups with different characteristics from the characteristics described in the collateral summary and tables on the preceding pages. A-1F (TO MATURITY) - --------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - --------------------------------------------------------------------------------------------------------------- Average Life 8.44 1.96 1.26 1.01 0.83 0.65 Modified Duration 5.77 1.72 1.15 0.93 0.77 0.61 First Payment 12 / 00 12 / 00 12 / 00 12 / 00 12 / 00 12 / 00 Last Payment 4 / 13 3 / 05 9 / 03 2 / 03 10 / 02 5 / 02 A-2F (TO MATURITY) - --------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - --------------------------------------------------------------------------------------------------------------- Average Life 15.62 7.32 4.97 3.96 3.10 2.04 Modified Duration 8.81 5.35 3.95 3.25 2.62 1.82 First Payment 4 / 13 3 / 05 9 / 03 2 / 03 10 / 02 5 / 02 Last Payment 3 / 20 3 / 12 10 / 08 7 / 07 10 / 06 9 / 03 - --------------------------------------------------------------------------------------------------------------- A-1A (TO MATURITY) 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - --------------------------------------------------------------------------------------------------------------- Average Life 20.80 5.84 3.79 2.95 2.31 1.50 Modified Duration 10.20 3.95 2.81 2.28 1.85 1.27 First Payment 12 / 00 12 / 00 12 / 00 12 / 00 12 / 00 12 / 00 Last Payment 2 / 30 12 / 26 2 / 22 1 / 19 8 / 16 9 / 13 M-1 (TO MATURITY) - --------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - --------------------------------------------------------------------------------------------------------------- Average Life 24.37 9.95 6.64 5.58 5.13 5.53 Modified Duration 10.36 6.26 4.70 4.16 3.95 4.26 First Payment 11 / 20 6 / 05 1 / 04 4 / 04 7 / 04 2 / 05 Last Payment 12 / 29 11 / 23 2 / 18 4 / 15 4 / 13 12 / 10 40 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- BOND SUMMARY (TO MATURITY) M-2 (TO MATURITY) - --------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - --------------------------------------------------------------------------------------------------------------- Average Life 24.75 9.85 6.53 5.42 4.77 4.39 Modified Duration 9.83 6.06 4.56 3.99 3.65 3.47 First Payment 11 / 20 6 / 05 12 / 03 2 / 04 3 / 04 6 / 04 Last Payment 9 / 29 12 / 21 2 / 16 5 / 13 11 / 11 7 / 09 B-1 (TO MATURITY) - --------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - --------------------------------------------------------------------------------------------------------------- Average Life 24.71 9.60 6.35 5.20 4.49 3.96 Modified Duration 9.58 5.92 4.45 3.85 3.47 3.17 First Payment 11 / 20 6 / 05 12 / 03 12 / 03 1 / 04 2 / 04 Last Payment 4 / 29 4 / 19 8 / 13 11 / 11 12 / 09 1 / 08 B-2 (TO MATURITY) - --------------------------------------------------------------------------------------------------------------- 0% Base 50% Base 80% Base 100% BASE 120% Base 150% Base - --------------------------------------------------------------------------------------------------------------- Average Life 24.59 9.08 5.95 4.81 4.15 3.59 Modified Duration 9.57 5.78 4.29 3.67 3.28 2.93 First Payment 11 / 20 6 / 05 12 / 03 12 / 03 12 / 03 1 / 04 Last Payment 9 / 28 11 / 15 6 / 11 5 / 09 11 / 07 4 / 06 41 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement. C-BASS MORTGAGE LOAN ASSET-BACKED CERTIFICATES, SERIES 2000-CB4 $162,386,000 (APPROXIMATE) - -------------------------------------------------------------------------------- MAXIMUM GROUP 2 NET COUPON - ------------------------------------------ Maximum Collateral Net Period Date Coupon* - ------------------------------------------ 1 12/25/00 9.56 2 1/25/01 9.56 3 2/25/01 9.56 4 3/25/01 9.56 5 4/25/01 9.63 6 5/25/01 9.63 7 6/25/01 9.63 8 7/25/01 9.63 9 8/25/01 9.63 10 9/25/01 9.64 11 10/25/01 9.71 12 11/25/01 9.71 13 12/25/01 9.71 14 1/25/02 9.71 15 2/25/02 9.71 16 3/25/02 9.71 17 4/25/02 9.89 18 5/25/02 9.89 19 6/25/02 9.90 20 7/25/02 9.90 21 8/25/02 10.10 22 9/25/02 10.10 23 10/25/02 10.20 24 11/25/02 10.20 25 12/25/02 10.20 26 1/25/03 10.20 27 2/25/03 10.28 28 3/25/03 10.27 29 4/25/03 10.30 30 5/25/03 10.29 31 6/25/03 10.29 32 7/25/03 10.28 33 8/25/03 10.33 34 9/25/03 10.33 35 10/25/03 10.33 36 11/25/03 10.33 - ------------------------------------------ * MAXIMUM NET COUPON is calculated using 6-Month LIBOR = 6.60%, 1-Year CMT = 5.93%, and 3-Year CMT =5.55% 42 This page must be accompanied by a disclaimer. If you did not receive such a disclaimer, please contact your First Union Securities, Inc. Financial Advisor immediately. These structural Computational Materials supersedes any previous structural Computational Materials and will be superseded by the structural information in the Prospectus Supplement.