EXHIBIT 99 BACM, Series 2004-4, Class A6 Price/Yield - ------------------------------------------------------------------------------------------------------------------------------------ Given: Price Base Case Scen1 Scen2 Scen3 Scen4 - ------------------------------------------------------------------------------------------------------------------------------------ 100-16 Yield 4.839 4.838 4.837 4.838 4.838 - ------------------------------------------------------------------------------------------------------------------------------------ Spread 31 32 34 32 31 - ------------------------------------------------------------------------------------------------------------------------------------ WAL 9.53 9.48 9.27 9.4 9.51 - ------------------------------------------------------------------------------------------------------------------------------------ Mod Durn 7.465 7.436 7.302 7.385 7.452 - ------------------------------------------------------------------------------------------------------------------------------------ Principal Window Sep13 to Jul14 Aug13 to Jul14 Jul13 to Apr14 Dec11 to Jul14 Jan13 to Jul14 - ------------------------------------------------------------------------------------------------------------------------------------ - --------------------------------------------------------------- Given: Price Scen5 Scen6 Scen7 - --------------------------------------------------------------- 100-16 4.833 4.838 4.838 - --------------------------------------------------------------- 39 32 33 - --------------------------------------------------------------- 8.8 9.44 9.37 - --------------------------------------------------------------- 6.989 7.406 7.366 - --------------------------------------------------------------- Sep11 to Jul14 Dec11 to Sep14 Jan12 to Jul14 - --------------------------------------------------------------- Base Case 0 CPY; 0 CDR Scen1 50 CPY; 0 CDR Scen2 100 CPY; 0 CDR Scen3 0 CPY; 1 CDR, 25 Severity, 12 Month Lag Scen4 0 CPY; 1 CDR, 50 Severity, 12 Month Lag Scen5 0 CPY; 5 CDR, 25 Severity, 12 Month Lag Scen6 0 CPY; 5 CDR, 50 Severity, 12 Month Lag Scen7 50 CPY; 1.8 CDR, 40 Severity, 12 Month Lag STATEMENT REGARDING ASSUMPTIONS AS TO SECURITIES, PRICING ESTIMATES AND OTHER INFORMATION The information contained in the attached materials (the "Information") may include various forms of performance analysis, security characteristics and securities pricing estimates for the securities addressed. Please read and understand this entire statement before utilizing the Information. The Information is provided solely by Bear Stearns, not as agent for any issuer, and although it may be based on data supplied to it by an issuer, the issuer has not participated in its preparation and makes no representations regarding its accuracy or completeness. Should you receive Information that refers to the "Statement Regarding Assumptions and Other Information", please refer to this statement instead. The Information is illustrative and is not intended to predict actual results which may differ substantially from those reflected in the Information. Performance analysis is based on certain assumptions with respect to significant factors that may prove not to be as assumed. You should understand the assumptions and evaluate whether they are appropriate for your purposes. Performance results are based on mathematical models that use inputs to calculate results. As with all models, results may vary significantly depending upon the value of the inputs given. Inputs to these models include but are not limited to: prepayment expectations (econometric prepayment models, single expected lifetime prepayments or a vector of periodic prepayments), interest rate assumptions (parallel and nonparallel changes for different maturity instruments), collateral assumptions (actual pool level data, aggregated pool level data, reported factors or imputed factors), volatility assumptions (historically observed or implied current) and reported information (paydown factors, rate resets and trustee statements). Models used in any analysis may be proprietary making the results difficult for any third party to reproduce. Contact your registered representative for detailed explanations of any modelling techniques employed in the Information. The Information addresses only certain aspects of the applicable security's characteristics and thus does not provide a complete assessment. As such, the Information may not reflect the impact of all structural characteristics of the security, including call events and cash flow priorities at all prepayment speeds and/or interest rates. You should consider whether the behavior of these securities should be tested at assumptions different from those included in the Information. The assumptions underlying the Information, including structure and collateral, may be modified from time to time to reflect changed circumstances. Any investment decision should be based only on the data in the prospectus and the prospectus supplement or private placement memorandum (Offering Documents) and the then current version of the Information. Offering Documents contain data that is current as of their publication dates and after publication may no longer be complete or current. Contact your registered representative for Offering Documents, current Information or additional materials, including other models for performance analysis, which are likely to produce different results, and any further explanation regarding the Information. Any pricing estimates Bear Stearns has supplied at your request (a) represent our view, at the time determined, of the investment value of the securities between the estimated bid and offer levels, the spread between which may be significant due to market volatility or illiquidity, (b) do not constitute a bid by any person for any security, (C) may not constitute prices at which the securities could have been purchased or sold in any market, (d) have not been confirmed by actual trades, may vary from the value Bear Stearns assigns any such security while in its inventory, and may not take into account the size of a position you have in the security, and (e) may have been derived from matrix pricing that uses data relating to other securities whose prices are more readily ascertainable to produce a hypothetical price based on the estimated yield spread relationship between the securities. General Information: The data underlying the Information has been obtained from sources that we believe are reliable, but we do not guarantee the accuracy of the underlying data or computations based thereon. Bear Stearns and/or individuals thereof may have positions in these securities while the Information is circulating or during such period may engage in transactions with the issuer or its affiliates. We act as principal in transactions with you, and accordingly, you must determine the appropriateness for you of such transactions and address any legal, tax or accounting considerations applicable to you. Bear Stearns shall not be a fiduciary or advisor unless we have agreed in writing to receive compensation specifically to act in such capacities. If you are subject to ERISA, the Information is being furnished on the condition that it will not form a primary basis for any investment decision. The Information is not a solicitation of any transaction in securities which may be made only by prospectus when required by law, in which event you may obtain such prospectus from Bear Stearns. BACM, Series 2004-4, Class A6 Price/Yield Given: Price Base Case Scen1 Scen2 Scen3 Scen4 - ------------------------------------------------------------------------------------------------------------------------------------ 100-16 Yield 4.839 4.838 4.837 4.838 4.838 - ------------------------------------------------------------------------------------------------------------------------------------ Spread 31 32 34 32 31 - ------------------------------------------------------------------------------------------------------------------------------------ WAL 9.53 9.48 9.27 9.40 9.51 - ------------------------------------------------------------------------------------------------------------------------------------ Mod Durn 7.465 7.436 7.302 7.385 7.452 - ------------------------------------------------------------------------------------------------------------------------------------ Principal Window Sep13 to Jul14 Aug13 to Jul14 Jul13 to Apr14 Dec11 to Jul14 Jan13 to Jul14 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------- Given: Price Scen5 Scen6 Scen7 Scen8 Scen9 - ------------------------------------------------------------------------------------------------- 100-16 4.833 4.838 4.838 4.839 4.840 - ------------------------------------------------------------------------------------------------- 39 32 33 31 28 - ------------------------------------------------------------------------------------------------- 8.8 9.44 9.37 9.53 9.80 - ------------------------------------------------------------------------------------------------- 6.989 7.406 7.366 7.465 7.632 - ------------------------------------------------------------------------------------------------- Sep11 to Jul14 Dec11 to Sep14 Jan12 to Jul14 Sep13 to Jul14 Sep13 to Jan16 - ------------------------------------------------------------------------------------------------- Base Case 0 CPY; 0 CDR Scen1 50 CPY; 0 CDR Scen2 100 CPY; 0 CDR Scen3 0 CPY; 1 CDR, 25 Severity, 12 Month Lag Scen4 0 CPY; 1 CDR, 50 Severity, 12 Month Lag Scen5 0 CPY; 5 CDR, 25 Severity, 12 Month Lag Scen6 0 CPY; 5 CDR, 50 Severity, 12 Month Lag Scen7 50 CPY; 1.8 CDR, 40 Severity, 12 Month Lag Scen8 Extend all ARD Loans 24 Months Scen9 Balloon Default 50% of each Loan 24 Months STATEMENT REGARDING ASSUMPTIONS AS TO SECURITIES, PRICING ESTIMATES AND OTHER INFORMATION The information contained in the attached materials (the "Information") may include various forms of performance analysis, security characteristics and securities pricing estimates for the securities addressed. Please read and understand this entire statement before utilizing the Information. The Information is provided solely by Bear Stearns, not as agent for any issuer, and although it may be based on data supplied to it by an issuer, the issuer has not participated in its preparation and makes no representations regarding its accuracy or completeness. Should you receive Information that refers to the "Statement Regarding Assumptions and Other Information", please refer to this statement instead. The Information is illustrative and is not intended to predict actual results which may differ substantially from those reflected in the Information. Performance analysis is based on certain assumptions with respect to significant factors that may prove not to be as assumed. You should understand the assumptions and evaluate whether they are appropriate for your purposes. Performance results are based on mathematical models that use inputs to calculate results. As with all models, results may vary significantly depending upon the value of the inputs given. Inputs to these models include but are not limited to: prepayment expectations (econometric prepayment models, single expected lifetime prepayments or a vector of periodic prepayments), interest rate assumptions (parallel and nonparallel changes for different maturity instruments), collateral assumptions (actual pool level data, aggregated pool level data, reported factors or imputed factors), volatility assumptions (historically observed or implied current) and reported information (paydown factors, rate resets and trustee statements). Models used in any analysis may be proprietary making the results difficult for any third party to reproduce. Contact your registered representative for detailed explanations of any modelling techniques employed in the Information. The Information addresses only certain aspects of the applicable security's characteristics and thus does not provide a complete assessment. As such, the Information may not reflect the impact of all structural characteristics of the security, including call events and cash flow priorities at all prepayment speeds and/or interest rates. You should consider whether the behavior of these securities should be tested at assumptions different from those included in the Information. The assumptions underlying the Information, including structure and collateral, may be modified from time to time to reflect changed circumstances. Any investment decision should be based only on the data in the prospectus and the prospectus supplement or private placement memorandum (Offering Documents) and the then current version of the Information. Offering Documents contain data that is current as of their publication dates and after publication may no longer be complete or current. Contact your registered representative for Offering Documents, current Information or additional materials, including other models for performance analysis, which are likely to produce different results, and any further explanation regarding the Information. Any pricing estimates Bear Stearns has supplied at your request (a) represent our view, at the time determined, of the investment value of the securities between the estimated bid and offer levels, the spread between which may be significant due to market volatility or illiquidity, (b) do not constitute a bid by any person for any security, (C) may not constitute prices at which the securities could have been purchased or sold in any market, (d) have not been confirmed by actual trades, may vary from the value Bear Stearns assigns any such security while in its inventory, and may not take into account the size of a position you have in the security, and (e) may have been derived from matrix pricing that uses data relating to other securities whose prices are more readily ascertainable to produce a hypothetical price based on the estimated yield spread relationship between the securities. General Information: The data underlying the Information has been obtained from sources that we believe are reliable, but we do not guarantee the accuracy of the underlying data or computations based thereon. Bear Stearns and/or individuals thereof may have positions in these securities while the Information is circulating or during such period may engage in transactions with the issuer or its affiliates. We act as principal in transactions with you, and accordingly, you must determine the appropriateness for you of such transactions and address any legal, tax or accounting considerations applicable to you. Bear Stearns shall not be a fiduciary or advisor unless we have agreed in writing to receive compensation specifically to act in such capacities. If you are subject to ERISA, the Information is being furnished on the condition that it will not form a primary basis for any investment decision. The Information is not a solicitation of any transaction in securities which may be made only by prospectus when required by law, in which event you may obtain such prospectus from Bear Stearns. BACM, Series 2004-4, Class A6 Price/Yield - ------------------------------------------------------------------------------------------------------------------------------------ Given: Price Base Case Scen1 Scen2 Scen3 Scen4 - ------------------------------------------------------------------------------------------------------------------------------------ 100-16 Yield 4.839 4.838 4.837 4.838 4.838 - ------------------------------------------------------------------------------------------------------------------------------------ Spread 31 32 34 32 31 - ------------------------------------------------------------------------------------------------------------------------------------ WAL 9.53 9.48 9.27 9.40 9.51 - ------------------------------------------------------------------------------------------------------------------------------------ Mod Durn 7.465 7.436 7.302 7.385 7.452 - ------------------------------------------------------------------------------------------------------------------------------------ Principal Window Sep13 to Jul14 Aug13 to Jul14 Jul13 to Apr14 Dec11 to Jul14 Jan13 to Jul14 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------- Given: Price Scen5 Scen6 Scen7 Scen8 Scen9 - ------------------------------------------------------------------------------------------------- 100-16 4.833 4.838 4.838 4.839 4.840 - ------------------------------------------------------------------------------------------------- 39 32 33 31 28 - ------------------------------------------------------------------------------------------------- 8.8 9.44 9.37 9.53 9.80 - ------------------------------------------------------------------------------------------------- 6.989 7.406 7.366 7.465 7.632 - ------------------------------------------------------------------------------------------------- Sep11 to Jul14 Dec11 to Sep14 Jan12 to Jul14 Sep13 to Jul14 Sep13 to Jan16 - ------------------------------------------------------------------------------------------------- Base Case 0 CPY; 0 CDR Scen1 50 CPY; 0 CDR Scen2 100 CPY; 0 CDR Scen3 0 CPY; 1 CDR, 25 Severity, 12 Month Lag Scen4 0 CPY; 1 CDR, 50 Severity, 12 Month Lag Scen5 0 CPY; 5 CDR, 25 Severity, 12 Month Lag Scen6 0 CPY; 5 CDR, 50 Severity, 12 Month Lag Scen7 50 CPY; 1.8 CDR, 40 Severity, 12 Month Lag Scen8 Extend all ARD Loans 24 Months Scen9 Balloon Default 50% of each Loan 24 Months **Exluding Dallas Market Center & Roxborough Portfolio STATEMENT REGARDING ASSUMPTIONS AS TO SECURITIES, PRICING ESTIMATES AND OTHER INFORMATION The information contained in the attached materials (the "Information") may include various forms of performance analysis, security characteristics and securities pricing estimates for the securities addressed. Please read and understand this entire statement before utilizing the Information. The Information is provided solely by Bear Stearns, not as agent for any issuer, and although it may be based on data supplied to it by an issuer, the issuer has not participated in its preparation and makes no representations regarding its accuracy or completeness. Should you receive Information that refers to the "Statement Regarding Assumptions and Other Information", please refer to this statement instead. The Information is illustrative and is not intended to predict actual results which may differ substantially from those reflected in the Information. Performance analysis is based on certain assumptions with respect to significant factors that may prove not to be as assumed. You should understand the assumptions and evaluate whether they are appropriate for your purposes. Performance results are based on mathematical models that use inputs to calculate results. As with all models, results may vary significantly depending upon the value of the inputs given. Inputs to these models include but are not limited to: prepayment expectations (econometric prepayment models, single expected lifetime prepayments or a vector of periodic prepayments), interest rate assumptions (parallel and nonparallel changes for different maturity instruments), collateral assumptions (actual pool level data, aggregated pool level data, reported factors or imputed factors), volatility assumptions (historically observed or implied current) and reported information (paydown factors, rate resets and trustee statements). Models used in any analysis may be proprietary making the results difficult for any third party to reproduce. Contact your registered representative for detailed explanations of any modelling techniques employed in the Information. The Information addresses only certain aspects of the applicable security's characteristics and thus does not provide a complete assessment. As such, the Information may not reflect the impact of all structural characteristics of the security, including call events and cash flow priorities at all prepayment speeds and/or interest rates. You should consider whether the behavior of these securities should be tested at assumptions different from those included in the Information. The assumptions underlying the Information, including structure and collateral, may be modified from time to time to reflect changed circumstances. Any investment decision should be based only on the data in the prospectus and the prospectus supplement or private placement memorandum (Offering Documents) and the then current version of the Information. Offering Documents contain data that is current as of their publication dates and after publication may no longer be complete or current. Contact your registered representative for Offering Documents, current Information or additional materials, including other models for performance analysis, which are likely to produce different results, and any further explanation regarding the Information. Any pricing estimates Bear Stearns has supplied at your request (a) represent our view, at the time determined, of the investment value of the securities between the estimated bid and offer levels, the spread between which may be significant due to market volatility or illiquidity, (b) do not constitute a bid by any person for any security, (C) may not constitute prices at which the securities could have been purchased or sold in any market, (d) have not been confirmed by actual trades, may vary from the value Bear Stearns assigns any such security while in its inventory, and may not take into account the size of a position you have in the security, and (e) may have been derived from matrix pricing that uses data relating to other securities whose prices are more readily ascertainable to produce a hypothetical price based on the estimated yield spread relationship between the securities. General Information: The data underlying the Information has been obtained from sources that we believe are reliable, but we do not guarantee the accuracy of the underlying data or computations based thereon. Bear Stearns and/or individuals thereof may have positions in these securities while the Information is circulating or during such period may engage in transactions with the issuer or its affiliates. We act as principal in transactions with you, and accordingly, you must determine the appropriateness for you of such transactions and address any legal, tax or accounting considerations applicable to you. Bear Stearns shall not be a fiduciary or advisor unless we have agreed in writing to receive compensation specifically to act in such capacities. If you are subject to ERISA, the Information is being furnished on the condition that it will not form a primary basis for any investment decision. The Information is not a solicitation of any transaction in securities which may be made only by prospectus when required by law, in which event you may obtain such prospectus from Bear Stearns. Price/Yield Table - Class A-1 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 33,000,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 3.4550% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - --------------------------------------------------------------------------------------------------------------------------- Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - --------------------------------------------------------------------------------------------------------------------------- During YM 0.00% 0.00% 0.00% 0.00% 0.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - --------------------------------------------------------------------------------------------------------------------------- - --------------------------------------------------------------------------------------------------------------------------- Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - --------------------------------------------------------------------------------------------------------------------------- 99.75000000 3.57 3.57 3.57 3.57 3.57 99.81250000 3.53 3.53 3.53 3.53 3.53 99.87500000 3.50 3.50 3.50 3.50 3.50 99.93750000 3.47 3.47 3.47 3.47 3.47 100.00000000 3.43 3.43 3.43 3.43 3.43 100.06250000 3.40 3.40 3.40 3.40 3.40 100.12500000 3.37 3.37 3.37 3.37 3.37 100.18750000 3.34 3.34 3.34 3.34 3.34 100.25000000 3.30 3.30 3.30 3.30 3.30 100.31250000 3.27 3.27 3.27 3.27 3.27 100.37500000 3.24 3.24 3.24 3.24 3.24 100.43750000 3.21 3.21 3.21 3.21 3.21 100.50000000 3.17 3.17 3.17 3.17 3.17 100.56250000 3.14 3.14 3.14 3.14 3.14 100.62500000 3.11 3.11 3.11 3.11 3.11 100.68750000 3.08 3.08 3.08 3.08 3.08 100.75000000 3.04 3.04 3.04 3.04 3.04 WAL (Yrs) 2.02 2.02 2.02 2.02 2.02 Mod Dur 1.91 1.91 1.91 1.91 1.91 FirstPrinPay 11/10/2004 11/10/2004 11/10/2004 11/10/2004 11/10/2004 Maturity 7/10/2008 7/10/2008 7/10/2008 7/10/2008 7/10/2008 Prin Window (Months) 45 45 45 45 45 - --------------------------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ------------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ------------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-2 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 48,000,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.041% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 0.00% 0.00% 0.00% 0.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.05 4.05 4.05 4.05 4.05 100.06250000 4.03 4.03 4.03 4.03 4.03 100.12500000 4.02 4.02 4.02 4.02 4.02 100.18750000 4.00 4.00 4.00 4.00 4.00 100.25000000 3.99 3.99 3.99 3.98 3.98 100.31250000 3.97 3.97 3.97 3.97 3.97 100.37500000 3.95 3.95 3.95 3.95 3.95 100.43750000 3.94 3.94 3.94 3.94 3.94 100.50000000 3.92 3.92 3.92 3.92 3.92 100.56250000 3.91 3.91 3.91 3.90 3.90 100.62500000 3.89 3.89 3.89 3.89 3.89 100.68750000 3.87 3.87 3.87 3.87 3.87 100.75000000 3.86 3.86 3.86 3.86 3.85 100.81250000 3.84 3.84 3.84 3.84 3.84 100.87500000 3.83 3.83 3.83 3.83 3.82 100.93750000 3.81 3.81 3.81 3.81 3.81 101.00000000 3.80 3.79 3.79 3.79 3.79 WAL (Yrs) 4.34 4.33 4.32 4.31 4.26 Mod Dur 3.91 3.90 3.89 3.88 3.85 FirstPrinPay 7/10/2008 7/10/2008 7/10/2008 7/10/2008 7/10/2008 Maturity 4/10/2009 4/10/2009 4/10/2009 3/10/2009 2/10/2009 Prin Window (Months) 10 10 10 9 8 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - --------------------------------------------------------------------- --------------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- --------------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-3 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 240,000,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.128% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 0.00% 0.00% 0.00% 0.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.14 4.14 4.14 4.14 4.14 100.06250000 4.12 4.12 4.12 4.12 4.12 100.12500000 4.11 4.11 4.11 4.11 4.11 100.18750000 4.09 4.09 4.09 4.09 4.09 100.25000000 4.08 4.08 4.08 4.08 4.08 100.31250000 4.07 4.07 4.07 4.06 4.06 100.37500000 4.05 4.05 4.05 4.05 4.05 100.43750000 4.04 4.04 4.04 4.04 4.03 100.50000000 4.02 4.02 4.02 4.02 4.02 100.56250000 4.01 4.01 4.01 4.01 4.00 100.62500000 3.99 3.99 3.99 3.99 3.99 100.68750000 3.98 3.98 3.98 3.98 3.97 100.75000000 3.96 3.96 3.96 3.96 3.96 100.81250000 3.95 3.95 3.95 3.95 3.94 100.87500000 3.93 3.93 3.93 3.93 3.93 100.93750000 3.92 3.92 3.92 3.92 3.91 101.00000000 3.90 3.90 3.90 3.90 3.90 WAL (Yrs) 4.73 4.73 4.72 4.71 4.59 Mod Dur 4.22 4.22 4.21 4.20 4.10 FirstPrinPay 4/10/2009 4/10/2009 4/10/2009 3/10/2009 2/10/2009 Maturity 6/10/2010 6/10/2010 6/10/2010 6/10/2010 6/10/2010 Prin Window (Months 15 15 15 16 17 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ------------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ------------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-4 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 225,000,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.502% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 0.00% 0.00% 0.00% 0.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.52 4.52 4.52 4.52 4.52 100.06250000 4.51 4.51 4.51 4.51 4.51 100.12500000 4.50 4.50 4.50 4.50 4.50 100.18750000 4.49 4.49 4.49 4.49 4.49 100.25000000 4.48 4.48 4.48 4.48 4.48 100.31250000 4.47 4.47 4.47 4.47 4.47 100.37500000 4.46 4.46 4.46 4.46 4.46 100.43750000 4.45 4.45 4.45 4.45 4.44 100.50000000 4.44 4.44 4.44 4.44 4.43 100.56250000 4.43 4.43 4.42 4.42 4.42 100.62500000 4.41 4.41 4.41 4.41 4.41 100.68750000 4.40 4.40 4.40 4.40 4.40 100.75000000 4.39 4.39 4.39 4.39 4.39 100.81250000 4.38 4.38 4.38 4.38 4.38 100.87500000 4.37 4.37 4.37 4.37 4.37 100.93750000 4.36 4.36 4.36 4.36 4.35 101.00000000 4.35 4.35 4.35 4.35 4.34 WAL (Yrs) 6.67 6.66 6.64 6.61 6.48 Mod Dur 5.65 5.64 5.63 5.61 5.51 FirstPrinPay 6/10/2010 6/10/2010 6/10/2010 6/10/2010 6/10/2010 Maturity 9/10/2011 9/10/2011 9/10/2011 9/10/2011 6/10/2011 Prin Window (Months) 16 16 16 16 13 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ------------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ------------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-5 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 107,000,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.576% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 0.00% 0.00% 0.00% 0.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.60 4.60 4.60 4.60 4.60 100.06250000 4.59 4.59 4.59 4.59 4.59 100.12500000 4.58 4.58 4.58 4.58 4.58 100.18750000 4.57 4.57 4.57 4.57 4.57 100.25000000 4.56 4.56 4.56 4.56 4.56 100.31250000 4.55 4.55 4.55 4.55 4.55 100.37500000 4.54 4.54 4.54 4.54 4.54 100.43750000 4.53 4.53 4.53 4.53 4.53 100.50000000 4.52 4.52 4.52 4.52 4.52 100.56250000 4.51 4.51 4.51 4.51 4.50 100.62500000 4.50 4.50 4.50 4.50 4.49 100.68750000 4.49 4.49 4.49 4.49 4.48 100.75000000 4.48 4.48 4.48 4.48 4.47 100.81250000 4.46 4.46 4.46 4.46 4.46 100.87500000 4.45 4.45 4.45 4.45 4.45 100.93750000 4.44 4.44 4.44 4.44 4.44 101.00000000 4.43 4.43 4.43 4.43 4.43 WAL (Yrs) 7.12 7.12 7.12 7.11 6.98 Mod Dur 5.95 5.95 5.95 5.95 5.85 FirstPrinPay 09/10/11 09/10/11 09/10/11 09/10/11 06/10/11 Maturity 09/10/13 09/10/13 08/10/13 08/10/13 07/10/13 Prin Window (Months) 25 25 24 24 26 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ------------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ------------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-6 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 272,199,171 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.877% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 0.00% 0.00% 0.00% 0.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.91 4.91 4.91 4.91 4.91 100.06250000 4.90 4.90 4.90 4.90 4.90 100.12500000 4.89 4.89 4.89 4.89 4.89 100.18750000 4.89 4.89 4.89 4.89 4.88 100.25000000 4.88 4.88 4.88 4.88 4.88 100.31250000 4.87 4.87 4.87 4.87 4.87 100.37500000 4.86 4.86 4.86 4.86 4.86 100.43750000 4.85 4.85 4.85 4.85 4.85 100.50000000 4.84 4.84 4.84 4.84 4.84 100.56250000 4.84 4.84 4.84 4.83 4.83 100.62500000 4.83 4.83 4.83 4.83 4.82 100.68750000 4.82 4.82 4.82 4.82 4.82 100.75000000 4.81 4.81 4.81 4.81 4.81 100.81250000 4.80 4.80 4.80 4.80 4.80 100.87500000 4.79 4.79 4.79 4.79 4.79 100.93750000 4.79 4.79 4.79 4.78 4.78 101.00000000 4.78 4.78 4.78 4.78 4.77 WAL (yrs) 9.53 9.51 9.48 9.44 9.27 Mod Dur 7.46 7.45 7.43 7.41 7.30 First Prin Pay 09/10/13 09/10/13 08/10/13 08/10/13 07/10/13 Maturity 07/10/14 07/10/14 07/10/14 07/10/14 04/10/14 Prin Win 11 11 12 12 10 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ------------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ------------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class B - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 35,640,764 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.985% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 0.00% 0.00% 0.00% 0.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 5.02 5.02 5.02 5.02 5.02 100.06250000 5.01 5.01 5.01 5.01 5.01 100.12500000 5.00 5.00 5.00 5.00 5.00 100.18750000 5.00 5.00 5.00 5.00 5.00 100.25000000 4.99 4.99 4.99 4.99 4.99 100.31250000 4.98 4.98 4.98 4.98 4.98 100.37500000 4.97 4.97 4.97 4.97 4.97 100.43750000 4.96 4.96 4.96 4.96 4.96 100.50000000 4.96 4.96 4.96 4.96 4.95 100.56250000 4.95 4.95 4.95 4.95 4.95 100.62500000 4.94 4.94 4.94 4.94 4.94 100.68750000 4.93 4.93 4.93 4.93 4.93 100.75000000 4.92 4.92 4.92 4.92 4.92 100.81250000 4.92 4.92 4.91 4.91 4.91 100.87500000 4.91 4.91 4.91 4.91 4.90 100.93750000 4.90 4.90 4.90 4.90 4.90 101.00000000 4.89 4.89 4.89 4.89 4.89 WAL (Yrs) 9.91 9.91 9.88 9.85 9.58 Mod Dur 7.66 7.65 7.64 7.62 7.46 FirstPrinPay 9/10/2014 8/10/2014 8/10/2014 8/10/2014 5/10/2014 Maturity 9/10/2014 9/10/2014 9/10/2014 9/10/2014 5/10/2014 Prin Window (Months) 1 2 2 2 1 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ------------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ------------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class C - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 11,340,243 Settlement Date: 10/12/04 Initial Pass-Through Rate: 5.024% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 0.00% 0.00% 0.00% 0.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 5.06 5.06 5.06 5.06 5.06 100.06250000 5.05 5.05 5.05 5.05 5.05 100.12500000 5.04 5.04 5.04 5.04 5.04 100.18750000 5.04 5.04 5.04 5.04 5.04 100.25000000 5.03 5.03 5.03 5.03 5.03 100.31250000 5.02 5.02 5.02 5.02 5.02 100.37500000 5.01 5.01 5.01 5.01 5.01 100.43750000 5.00 5.00 5.00 5.00 5.00 100.50000000 5.00 5.00 5.00 5.00 4.99 100.56250000 4.99 4.99 4.99 4.99 4.99 100.62500000 4.98 4.98 4.98 4.98 4.98 100.68750000 4.97 4.97 4.97 4.97 4.97 100.75000000 4.96 4.96 4.96 4.96 4.96 100.81250000 4.95 4.95 4.95 4.95 4.95 100.87500000 4.95 4.95 4.95 4.95 4.94 100.93750000 4.94 4.94 4.94 4.94 4.94 101.00000000 4.93 4.93 4.93 4.93 4.93 WAL (Yrs) 9.91 9.91 9.91 9.91 9.64 Mod Dur 7.64 7.64 7.64 7.64 7.48 FirstPrinPay 9/10/2014 9/10/2014 9/10/2014 9/10/2014 5/10/2014 Maturity 9/10/2014 9/10/2014 9/10/2014 9/10/2014 6/10/2014 Prin Window (Months) 1 1 1 1 2 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ------------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ------------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class D - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 21,060,451 Settlement Date: 10/12/04 Initial Pass-Through Rate: 5.073% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 0.00% 0.00% 0.00% 0.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 5.11 5.11 5.11 5.11 5.11 100.06250000 5.10 5.10 5.10 5.10 5.10 100.12500000 5.09 5.09 5.09 5.09 5.09 100.18750000 5.09 5.09 5.09 5.09 5.08 100.25000000 5.08 5.08 5.08 5.08 5.08 100.31250000 5.07 5.07 5.07 5.07 5.07 100.37500000 5.06 5.06 5.06 5.06 5.06 100.43750000 5.05 5.05 5.05 5.05 5.05 100.50000000 5.04 5.04 5.04 5.04 5.04 100.56250000 5.04 5.04 5.04 5.04 5.03 100.62500000 5.03 5.03 5.03 5.03 5.03 100.68750000 5.02 5.02 5.02 5.02 5.02 100.75000000 5.01 5.01 5.01 5.01 5.01 100.81250000 5.00 5.00 5.00 5.00 5.00 100.87500000 5.00 5.00 5.00 5.00 4.99 100.93750000 4.99 4.99 4.99 4.99 4.99 101.00000000 4.98 4.98 4.98 4.98 4.98 WAL (Yrs) 9.91 9.91 9.91 9.91 9.66 Mod Dur 7.62 7.62 7.62 7.62 7.47 FirstPrinPay 9/10/2014 9/10/2014 9/10/2014 9/10/2014 6/10/2014 Maturity 9/10/2014 9/10/2014 9/10/2014 9/10/2014 6/10/2014 Prin Window (Months) 1 1 1 1 1 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ------------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ------------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-1A - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 202,345,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.632% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.66 4.73 4.78 4.82 4.88 100.06250000 4.65 4.72 4.77 4.81 4.87 100.12500000 4.64 4.70 4.76 4.80 4.86 100.18750000 4.63 4.69 4.75 4.79 4.84 100.25000000 4.62 4.68 4.74 4.78 4.83 100.31250000 4.61 4.67 4.73 4.77 4.82 100.37500000 4.60 4.66 4.72 4.76 4.81 100.43750000 4.59 4.65 4.70 4.75 4.80 100.50000000 4.58 4.64 4.69 4.74 4.79 100.56250000 4.57 4.63 4.68 4.72 4.77 100.62500000 4.56 4.62 4.67 4.71 4.76 100.68750000 4.55 4.61 4.66 4.70 4.75 100.75000000 4.54 4.60 4.65 4.69 4.74 100.81250000 4.53 4.59 4.64 4.68 4.73 100.87500000 4.52 4.58 4.63 4.67 4.72 100.93750000 4.51 4.57 4.62 4.66 4.71 101.00000000 4.50 4.56 4.61 4.65 4.69 WAL (yrs) 7.54 7.29 7.10 6.95 6.63 Mod Dur 6.14 5.91 5.73 5.59 5.34 First Prin Pay 11/10/2004 11/10/2004 11/10/2004 11/10/2004 11/10/2004 Maturity 9/10/2014 8/10/2014 8/10/2014 8/10/2014 5/10/2014 Prin Win 119 118 118 118 115 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ----------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ----------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-1 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 33,000,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 3.4550% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 99.75000000 3.57 4.46 5.41 6.70 18.22 99.81250000 3.53 4.39 5.30 6.52 17.35 99.87500000 3.50 4.32 5.19 6.34 16.47 99.93750000 3.47 4.25 5.08 6.15 15.61 100.00000000 3.43 4.19 4.96 5.97 14.74 100.06250000 3.40 4.12 4.85 5.79 13.88 100.12500000 3.37 4.05 4.74 5.61 13.03 100.18750000 3.34 3.98 4.63 5.43 12.18 100.25000000 3.30 3.91 4.51 5.25 11.33 100.31250000 3.27 3.84 4.40 5.07 10.48 100.37500000 3.24 3.78 4.29 4.88 9.64 100.43750000 3.21 3.71 4.18 4.70 8.81 100.50000000 3.17 3.64 4.07 4.52 7.97 100.56250000 3.14 3.57 3.95 4.35 7.15 100.62500000 3.11 3.50 3.84 4.17 6.32 100.68750000 3.08 3.43 3.73 3.99 5.50 100.75000000 3.04 3.37 3.62 3.81 4.68 WAL (Yrs) 2.02 0.95 0.58 0.36 0.08 Mod Dur 1.91 0.91 0.56 0.34 0.07 FirstPrinPay 11/10/2004 11/10/2004 11/10/2004 11/10/2004 11/10/2004 Maturity 7/10/2008 8/10/2006 1/10/2006 7/10/2005 11/10/2004 Prin Window (Months) 45 22 15 9 1 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ----------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ----------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-2 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 48,000,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.041% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.05 4.73 4.92 5.18 5.57 100.06250000 4.03 4.70 4.89 5.14 5.51 100.12500000 4.02 4.67 4.85 5.10 5.45 100.18750000 4.00 4.65 4.82 5.06 5.40 100.25000000 3.99 4.62 4.79 5.02 5.34 100.31250000 3.97 4.60 4.75 4.98 5.28 100.37500000 3.95 4.57 4.72 4.94 5.22 100.43750000 3.94 4.54 4.69 4.90 5.16 100.50000000 3.92 4.52 4.66 4.86 5.10 100.56250000 3.91 4.49 4.62 4.82 5.04 100.62500000 3.89 4.47 4.59 4.78 4.98 100.68750000 3.87 4.44 4.56 4.74 4.93 100.75000000 3.86 4.41 4.52 4.69 4.87 100.81250000 3.84 4.39 4.49 4.65 4.81 100.87500000 3.83 4.36 4.46 4.61 4.75 100.93750000 3.81 4.34 4.43 4.57 4.69 101.00000000 3.80 4.31 4.39 4.53 4.63 WAL (Yrs) 4.34 2.58 2.01 1.62 1.13 Mod Dur 3.91 2.40 1.89 1.53 1.06 FirstPrinPay 7/10/2008 8/10/2006 1/10/2006 7/10/2005 11/10/2004 Maturity 4/10/2009 11/10/2007 6/10/2007 12/10/2006 6/10/2006 Prin Window (Months) 10 16 18 18 20 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ----------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ----------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-3 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 240,000,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.128% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.14 4.26 4.44 4.59 4.81 100.06250000 4.12 4.24 4.43 4.57 4.78 100.12500000 4.11 4.23 4.41 4.55 4.76 100.18750000 4.09 4.21 4.39 4.53 4.74 100.25000000 4.08 4.19 4.37 4.51 4.72 100.31250000 4.07 4.18 4.35 4.49 4.69 100.37500000 4.05 4.16 4.34 4.47 4.67 100.43750000 4.04 4.15 4.32 4.45 4.65 100.50000000 4.02 4.13 4.30 4.43 4.63 100.56250000 4.01 4.12 4.28 4.41 4.60 100.62500000 3.99 4.10 4.27 4.39 4.58 100.68750000 3.98 4.08 4.25 4.38 4.56 100.75000000 3.96 4.07 4.23 4.36 4.53 100.81250000 3.95 4.05 4.21 4.34 4.51 100.87500000 3.93 4.04 4.20 4.32 4.49 100.93750000 3.92 4.02 4.18 4.30 4.47 101.00000000 3.90 4.00 4.16 4.28 4.44 WAL (Yrs) 4.73 4.36 3.89 3.51 2.98 Mod Dur 4.22 3.91 3.52 3.19 2.73 FirstPrinPay 4/10/2009 11/10/2007 6/10/2007 12/10/2006 6/10/2006 Maturity 6/10/2010 8/10/2009 7/10/2009 6/10/2009 2/10/2009 Prin Window (Months) 15 22 26 31 33 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ----------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ----------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-4 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 225,000,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.502% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.52 4.58 4.59 4.58 4.59 100.06250000 4.51 4.57 4.58 4.57 4.58 100.12500000 4.50 4.56 4.57 4.56 4.56 100.18750000 4.49 4.55 4.55 4.55 4.55 100.25000000 4.48 4.54 4.54 4.54 4.54 100.31250000 4.47 4.53 4.53 4.52 4.53 100.37500000 4.46 4.51 4.52 4.51 4.51 100.43750000 4.45 4.50 4.50 4.50 4.50 100.50000000 4.44 4.49 4.49 4.49 4.49 100.56250000 4.43 4.48 4.48 4.47 4.47 100.62500000 4.41 4.47 4.47 4.46 4.46 100.68750000 4.40 4.46 4.46 4.45 4.45 100.75000000 4.39 4.44 4.44 4.44 4.44 100.81250000 4.38 4.43 4.43 4.43 4.42 100.87500000 4.37 4.42 4.42 4.41 4.41 100.93750000 4.36 4.41 4.41 4.40 4.40 101.00000000 4.35 4.40 4.40 4.39 4.39 WAL (Yrs) 6.67 6.25 6.04 5.92 5.71 Mod Dur 5.65 5.34 5.17 5.08 4.92 FirstPrinPay 6/10/2010 8/10/2009 7/10/2009 6/10/2009 2/10/2009 Maturity 9/10/2011 9/10/2011 8/10/2011 8/10/2011 6/10/2011 Prin Window (Months) 16 26 26 27 29 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ----------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ----------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-5 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 107,000,000 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.576% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.60 4.60 4.60 4.60 4.60 100.06250000 4.59 4.59 4.59 4.59 4.59 100.12500000 4.58 4.58 4.58 4.58 4.58 100.18750000 4.57 4.57 4.57 4.57 4.57 100.25000000 4.56 4.56 4.56 4.56 4.56 100.31250000 4.55 4.55 4.55 4.55 4.54 100.37500000 4.54 4.54 4.54 4.54 4.53 100.43750000 4.53 4.53 4.53 4.53 4.52 100.50000000 4.52 4.52 4.52 4.51 4.51 100.56250000 4.51 4.51 4.51 4.50 4.50 100.62500000 4.50 4.50 4.49 4.49 4.49 100.68750000 4.49 4.48 4.48 4.48 4.48 100.75000000 4.48 4.47 4.47 4.47 4.47 100.81250000 4.46 4.46 4.46 4.46 4.46 100.87500000 4.45 4.45 4.45 4.45 4.44 100.93750000 4.44 4.44 4.44 4.44 4.43 101.00000000 4.43 4.43 4.43 4.43 4.42 WAL (Yrs) 7.12 6.91 6.89 6.87 6.66 Mod Dur 5.95 5.81 5.79 5.78 5.63 FirstPrinPay 09/10/11 09/10/11 08/10/11 08/10/11 06/10/11 Maturity 09/10/13 09/10/11 09/10/11 09/10/11 06/10/11 Prin Window (Months) 25 1 2 2 1 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ----------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ----------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-6 - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 272,199,171 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.877% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 4.91 4.92 4.92 4.91 4.91 100.06250000 4.90 4.91 4.91 4.90 4.90 100.12500000 4.89 4.91 4.90 4.89 4.89 100.18750000 4.89 4.90 4.89 4.88 4.88 100.25000000 4.88 4.89 4.88 4.88 4.87 100.31250000 4.87 4.88 4.87 4.87 4.86 100.37500000 4.86 4.87 4.86 4.86 4.86 100.43750000 4.85 4.86 4.85 4.85 4.85 100.50000000 4.84 4.85 4.85 4.84 4.84 100.56250000 4.84 4.84 4.84 4.83 4.83 100.62500000 4.83 4.84 4.83 4.82 4.82 100.68750000 4.82 4.83 4.82 4.81 4.81 100.75000000 4.81 4.82 4.81 4.80 4.80 100.81250000 4.80 4.81 4.80 4.80 4.79 100.87500000 4.79 4.80 4.79 4.79 4.78 100.93750000 4.79 4.79 4.78 4.78 4.77 101.00000000 4.78 4.78 4.78 4.77 4.77 WAL (yrs) 9.53 9.08 8.92 8.86 8.68 Mod Dur 7.46 7.17 7.07 7.03 6.92 First Prin Pay 09/10/13 09/10/11 09/10/11 09/10/11 06/10/11 Maturity 07/10/14 07/10/14 07/10/14 07/10/14 04/10/14 Prin Win 11 35 35 35 35 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ----------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ----------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class B - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 35,640,764 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.985% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 5.02 5.02 5.02 5.02 5.02 100.06250000 5.01 5.01 5.01 5.01 5.01 100.12500000 5.00 5.00 5.00 5.00 5.00 100.18750000 5.00 5.00 5.00 5.00 5.00 100.25000000 4.99 4.99 4.99 4.99 4.99 100.31250000 4.98 4.98 4.98 4.98 4.98 100.37500000 4.97 4.97 4.97 4.97 4.97 100.43750000 4.96 4.96 4.96 4.96 4.96 100.50000000 4.96 4.96 4.96 4.96 4.95 100.56250000 4.95 4.95 4.95 4.95 4.95 100.62500000 4.94 4.94 4.94 4.94 4.94 100.68750000 4.93 4.93 4.93 4.93 4.93 100.75000000 4.92 4.92 4.92 4.92 4.92 100.81250000 4.92 4.92 4.91 4.91 4.91 100.87500000 4.91 4.91 4.91 4.91 4.90 100.93750000 4.90 4.90 4.90 4.90 4.90 101.00000000 4.89 4.89 4.89 4.89 4.89 WAL (Yrs) 9.91 9.91 9.88 9.85 9.58 Mod Dur 7.66 7.65 7.64 7.62 7.46 FirstPrinPay 9/10/2014 8/10/2014 8/10/2014 8/10/2014 5/10/2014 Maturity 9/10/2014 9/10/2014 9/10/2014 9/10/2014 5/10/2014 Prin Window (Months) 1 2 2 2 1 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ----------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ----------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class C - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 11,340,243 Settlement Date: 10/12/04 Initial Pass-Through Rate: 5.024% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 5.06 5.06 5.06 5.06 5.06 100.06250000 5.05 5.05 5.05 5.05 5.05 100.12500000 5.04 5.04 5.04 5.04 5.04 100.18750000 5.04 5.04 5.04 5.04 5.04 100.25000000 5.03 5.03 5.03 5.03 5.03 100.31250000 5.02 5.02 5.02 5.02 5.02 100.37500000 5.01 5.01 5.01 5.01 5.01 100.43750000 5.00 5.00 5.00 5.00 5.00 100.50000000 5.00 5.00 5.00 5.00 4.99 100.56250000 4.99 4.99 4.99 4.99 4.99 100.62500000 4.98 4.98 4.98 4.98 4.98 100.68750000 4.97 4.97 4.97 4.97 4.97 100.75000000 4.96 4.96 4.96 4.96 4.96 100.81250000 4.95 4.95 4.95 4.95 4.95 100.87500000 4.95 4.95 4.95 4.95 4.94 100.93750000 4.94 4.94 4.94 4.94 4.94 101.00000000 4.93 4.93 4.93 4.93 4.93 WAL (yrs) 9.91 9.91 9.91 9.91 9.64 Mod Dur 7.64 7.64 7.64 7.64 7.48 First Prin Pay 9/10/2014 9/10/2014 9/10/2014 9/10/2014 5/10/2014 Maturity 9/10/2014 9/10/2014 9/10/2014 9/10/2014 6/10/2014 Prin Win 1 1 1 1 2 Yield Spread 87 87 87 87 91 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ----------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ----------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class D - ------------------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 21,060,451 Settlement Date: 10/12/04 Initial Pass-Through Rate: 5.073% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 - ------------------------------------------------------------------------------------------------------------------------------------ 100.00000000 5.11 5.11 5.11 5.11 5.11 100.06250000 5.10 5.10 5.10 5.10 5.10 100.12500000 5.09 5.09 5.09 5.09 5.09 100.18750000 5.09 5.09 5.09 5.09 5.08 100.25000000 5.08 5.08 5.08 5.08 5.08 100.31250000 5.07 5.07 5.07 5.07 5.07 100.37500000 5.06 5.06 5.06 5.06 5.06 100.43750000 5.05 5.05 5.05 5.05 5.05 100.50000000 5.04 5.04 5.04 5.04 5.04 100.56250000 5.04 5.04 5.04 5.04 5.03 100.62500000 5.03 5.03 5.03 5.03 5.03 100.68750000 5.02 5.02 5.02 5.02 5.02 100.75000000 5.01 5.01 5.01 5.01 5.01 100.81250000 5.00 5.00 5.00 5.00 5.00 100.87500000 5.00 5.00 5.00 5.00 4.99 100.93750000 4.99 4.99 4.99 4.99 4.99 101.00000000 4.98 4.98 4.98 4.98 4.98 WAL (Yrs) 9.91 9.91 9.91 9.91 9.66 Mod Dur 7.62 7.62 7.62 7.62 7.47 FirstPrinPay 9/10/2014 9/10/2014 9/10/2014 9/10/2014 6/10/2014 Maturity 9/10/2014 9/10/2014 9/10/2014 9/10/2014 6/10/2014 Prin Window (Months) 1 1 1 1 1 - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ Assumptions Treasury Curve as of - -------------------------------------------------------------------- ----------------------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- ----------------------------------------------- Initial Balance is as of October 2004 1/12 2.645 - ------------------------------------- Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ------------------------------------------------------------------------------------------------------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class XP - ------------------------------------------------------------------------------------------------------------------------------- Security ID: BACM Series 2004-4 Initial Balance: 1,264,855,847 Settlement Date: 10/12/04 Initial Pass-Through Rate: 0.9189% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------------------------------- Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 During YM 0.00% 0.00% 0.00% 0.00% 0.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - ------------------------------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------------------------------- Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 3.531700 5.22 5.22 5.22 5.22 5.22 3.547330 5.06 5.06 5.06 5.06 5.06 3.562950 4.90 4.90 4.90 4.90 4.90 3.578580 4.73 4.73 4.73 4.73 4.73 3.594200 4.57 4.57 4.57 4.57 4.57 3.609830 4.42 4.42 4.42 4.42 4.42 3.625450 4.26 4.26 4.26 4.26 4.26 3.641080 4.10 4.10 4.10 4.10 4.10 3.656700 3.95 3.95 3.95 3.95 3.95 3.672320 3.79 3.79 3.79 3.79 3.79 3.687950 3.64 3.64 3.64 3.64 3.64 3.703570 3.49 3.49 3.49 3.49 3.49 3.719200 3.33 3.33 3.33 3.33 3.33 3.734820 3.18 3.18 3.18 3.18 3.18 3.750450 3.03 3.03 3.03 3.03 3.03 3.766070 2.89 2.89 2.89 2.89 2.89 3.781700 2.74 2.74 2.74 2.74 2.74 WAL (yrs) 5.28 5.28 5.28 5.28 5.28 Mod Dur 2.73 2.73 2.73 2.73 2.73 First Prin Pay 4/10/2005 4/10/2005 4/10/2005 4/10/2005 4/10/2005 Maturity 10/10/2011 10/10/2011 10/10/2011 10/10/2011 10/10/2011 Prin Win 79 79 79 79 79 Yield Spread 50 50 50 50 50 - ------------------------------------------------------------------------------------------------------------------------------- - ---------------------------------------------------------------------------------------------- ------------------------------- Assumptions Treasury Curve as of - ---------------------------------------------------------------------------------------------- ------------------------------- 1% Cleanup Call is Exercised Term (Yrs) Yield (BEY%) - ---------------------------- ------------- ------------- Initial Balance is as of October 2004 - ------------------------------------- 1/12 2.645 Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ---------------------------------------------------------------------------------------------- ------------------------------- Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties - -------------------------------------------------------------------------------- This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class XP - -------------------------------------------------------------------------------------------------------------------------------- Security ID: BACM Series 2004-4 Initial Balance: 1,264,855,847 Settlement Date: 10/12/04 Initial Pass-Through Rate: 0.9189% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - -------------------------------------------------------------------------------------------------------------------------------- - -------------------------------------------------------------------------------------------------------------------------------- Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 During YM 0.00% 25.00% 50.00% 75.00% 100.00% During Open 0.00% 25.00% 50.00% 75.00% 100.00% - -------------------------------------------------------------------------------------------------------------------------------- - -------------------------------------------------------------------------------------------------------------------------------- Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 3.531700 5.22 5.92 5.91 5.37 4.00 3.547330 5.06 5.75 5.74 5.20 3.84 3.562950 4.90 5.59 5.58 5.04 3.68 3.578580 4.73 5.43 5.42 4.88 3.52 3.594200 4.57 5.26 5.26 4.72 3.36 3.609830 4.42 5.10 5.10 4.56 3.20 3.625450 4.26 4.95 4.94 4.40 3.05 3.641080 4.10 4.79 4.78 4.24 2.89 3.656700 3.95 4.63 4.62 4.08 2.74 3.672320 3.79 4.47 4.46 3.93 2.59 3.687950 3.64 4.32 4.31 3.77 2.43 3.703570 3.49 4.17 4.15 3.62 2.28 3.719200 3.33 4.01 4.00 3.47 2.13 3.734820 3.18 3.86 3.85 3.32 1.98 3.750450 3.03 3.71 3.70 3.17 1.84 3.766070 2.89 3.56 3.55 3.02 1.69 3.781700 2.74 3.41 3.40 2.87 1.54 WAL (yrs) 5.28 5.28 5.24 5.16 5.01 Mod Dur 2.73 2.71 2.70 2.72 2.76 First Prin Pay 4/10/2005 12/10/2004 12/10/2004 11/10/2004 11/10/2004 Maturity 10/10/2011 10/10/2011 10/10/2011 10/10/2011 10/10/2011 Prin Win 79 83 83 84 84 Yield Spread 50 119 118 66 -67 - -------------------------------------------------------------------------------------------------------------------------------- - ---------------------------------------------------------------------------------------------- -------------------------------- Assumptions Treasury Curve as of - ---------------------------------------------------------------------------------------------- -------------------------------- 1% Cleanup Call is Exercised Term (Yrs) Yield (BEY%) - ---------------------------- -------------- -------------- Initial Balance is as of October 2004 - ------------------------------------- 1/12 2.645 Prepay Rates are a Constant % of CPR 1/4 2.645 100% of All Prepayment Premiums are assumed to be collected 1/2 2.645 Prepayment Premiums are allocated to one or more classes 2 2.645 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.889 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.404 No Extensions on any Mortgage Loan 10 4.137 No Delinquencies on any Mortgage Loan 30 4.906 No Defaults on any Mortgage Loan - ---------------------------------------------------------------------------------------------- -------------------------------- Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties - -------------------------------------------------------------------------------- This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class XP - --------------------------------------------------------------------------------------------------------------------------- Security ID: BACM Series 2004-4 Initial Balance: 1,264,855,847 Settlement Date: 10/12/04 Initial Pass-Through Rate: 0.9349% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - --------------------------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------ Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 During YM 0.00% 0.00% 0.00% During Open 100.00% 100.00% 100.00% - ------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------ Defualt (CDR) Scenario 1 Scenario 2 Scenario 3 0 Yield Sce 0 Spread Sce Default Rate 0.00% 14.56% 8.43% Loss Severity 0.00% 35.00% 35.00% Lag (months) 0 6 6 Default Starting in Month 0 1 1 - ------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------ Scenario 1 Scenario 2 Scenario 3 3.594840000 5.11 1.27 4.65 3.610470000 4.95 1.11 4.49 3.626090000 4.79 0.95 4.33 3.641720000 4.63 0.78 4.17 3.657340000 4.47 0.62 4.01 3.672970000 4.32 0.47 3.85 3.688590000 4.16 0.31 3.70 3.704220000 4.01 0.15 3.54 3.719840000 3.85 0.00 3.39 3.735460000 3.70 -0.16 3.24 3.751090000 3.55 -0.31 3.08 3.766710000 3.40 -0.46 2.93 3.782340000 3.25 -0.61 2.78 3.797960000 3.10 -0.76 2.64 3.813590000 2.96 -0.91 2.49 3.829210000 2.81 -1.06 2.34 3.844840000 2.67 -1.21 2.20 WAL (yrs) 5.28 4.74 5.20 Mod Dur 2.73 2.69 2.72 First Prin Pay 4/10/2005 4/10/2005 4/10/2005 Maturity 10/10/2011 10/10/2011 10/10/2011 Prin Win 79 79 79 Yield Spread 45 -329 0 - ------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------ ------------------------------- Assumptions Treasury Curve as of - ------------------------------------------------------------------------------------------------ ------------------------------- 1% Cleanup Call is Exercised Term (Yrs) Yield (BEY%) - ---------------------------- ------------- ------------- Initial Balance is as of October 2004 - ------------------------------------- 1/12 2.476 Prepay Rates are a Constant % of CPR 1/4 2.476 100% of All Prepayment Premiums are assumed to be collected 1/2 2.476 Prepayment Premiums are allocated to one or more classes 2 2.476 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.796 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.360 10 4.142 30 4.932 - ------------------------------------------------------------------------------------------------ ------------------------------- Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties - -------------------------------------------------------------------------------- This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class A-6 - ------------------------------------------------------------------------------------------------------------------------ Security ID: BACM Series 2004-4 Initial Balance: 272,199,171 Settlement Date: 10/12/04 Initial Pass-Through Rate: 4.872% Accrual Start Date: 10/01/04 First Pay Date: 11/10/04 - ------------------------------------------------------------------------------------------------------------------------ - ----------------------------------------------------------------------------------------------- Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 During YM 0.00% 0.00% 0.00% During Open 0.00% 0.00% 0.00% Default (CDR) Scenario 1 Scenario 2 Scenario 3 Default Rate - Rest of the Pool 0.00% 0.00% 0.50% Default Rate - West Ridge Mall 0.00% 100.00% 100.00% Loss Severity 0.00% 35.00% 35.00% Recovery lag 0 12 12 Default in month 0 24 24 - ----------------------------------------------------------------------------------------------- - ----------------------------------------------------------------------------------------------- Scenario 1 Scenario 2 Scenario 3 100.00000000 4.91 4.90 4.90 100.06250000 4.90 4.90 4.90 100.12500000 4.89 4.89 4.89 100.18750000 4.88 4.88 4.88 100.25000000 4.87 4.87 4.87 100.31250000 4.86 4.86 4.86 100.37500000 4.86 4.85 4.85 100.43750000 4.85 4.84 4.84 100.50000000 4.84 4.84 4.84 100.56250000 4.83 4.83 4.83 100.62500000 4.82 4.82 4.82 100.68750000 4.81 4.81 4.81 100.75000000 4.81 4.80 4.80 100.81250000 4.80 4.79 4.79 100.87500000 4.79 4.78 4.78 100.93750000 4.78 4.78 4.78 101.00000000 4.77 4.77 4.77 WAL (yrs) 9.53 9.18 9.12 Mod Dur 7.47 7.24 7.20 First Prin Pay 09/10/13 09/10/11 09/10/11 Maturity 07/10/14 07/10/14 07/10/14 Prin Win 11 35 35 83 - ----------------------------------------------------------------------------------------------- - ---------------------------------------------------------------------------------------------- ---------------------------------- Assumptions Treasury Curve as of - ---------------------------------------------------------------------------------------------- ---------------------------------- 1% Cleanup Call is Not Exercised Term (Yrs) Yield (BEY%) - -------------------------------- --------------- -------------- Initial Balance is as of October 2004 - ------------------------------------- 1/12 2.476 Prepay Rates are a Constant % of CPR 1/4 2.476 100% of All Prepayment Premiums are assumed to be collected 1/2 2.476 Prepayment Premiums are allocated to one or more classes 2 2.476 of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.796 Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.360 No Extensions on any Mortgage Loan 10 4.142 30 4.932 - ---------------------------------------------------------------------------------------------- ---------------------------------- Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties - -------------------------------------------------------------------------------- This material is for your private information and Banc of America Securities LLC (the "Underwriter") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Underwriter considers reliable, but the Underwriter does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Underwriter makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Underwriter and its affiliates, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). This material may be filed with the Securities and Exchange Commission (the "SEC") and incorporated by reference into an effective registration statement previously filed with the SEC under Rule 415 of the Securities Act of 1933, including all cases where the material does not pertain to securities that are ultimately offered for sale pursuant to such registration statement. Information contained in this material is current as of the date appearing in this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded in its entirety by the information contained in any final prospectus and prospectus supplement for any securities actually sold to you, which you should read before making any investment decision. This material is furnished solely by the Underwriter and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. The Underwriter is acting as Underwriter and not acting as agent for the issuer in connection with the proposed transaction. Banc of America Securities LLC Price/Yield Table - Class XP - -------------------------------------------------------------------------------------------- Security ID: BACM Series 2004-4 Initial Balance: 1,296,027,783 Settlement Date: 10/12/04 Initial Pass-Through Rate: 0.0525% Accrual Start Date: 11/10/04 First Pay Date: 10/01/04 - -------------------------------------------------------------------------------------------- - ----------------------------------------------------------------------------------------------------------------------------------- Prepayment (CPR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 Scenario 6 Scenario 7 Scenario 8 During YM 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% During Open 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% Defualt (CDR) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 Scenario 6 Scenario 7 Scenario 8 Default Rate 0.00% 4.00% 5.00% 6.00% 7.00% 8.00% 9.00% 10.00% Loss Severity 0.00% 40.00% 40.00% 40.00% 40.00% 40.00% 40.00% 40.00% Lag (months) 0 12 12 12 12 12 12 12 Default Starting in Month 0 1 1 1 1 1 1 1 Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5 Scenario 6 Scenario 7 Scenario 8 3.594840000 5.11 5.11 5.11 5.05 4.89 4.51 3.96 3.23 3.610470000 4.95 4.95 4.95 4.89 4.73 4.35 3.80 3.07 3.626090000 4.79 4.79 4.79 4.73 4.57 4.19 3.64 2.91 3.641720000 4.63 4.63 4.63 4.57 4.41 4.03 3.48 2.75 3.657340000 4.47 4.47 4.47 4.41 4.26 3.87 3.33 2.59 3.672970000 4.32 4.32 4.32 4.25 4.10 3.71 3.17 2.44 3.688590000 4.16 4.16 4.16 4.10 3.94 3.56 3.01 2.28 3.704220000 4.01 4.01 4.01 3.95 3.79 3.40 2.86 2.13 3.719840000 3.85 3.85 3.85 3.79 3.64 3.25 2.71 1.97 3.735470000 3.70 3.70 3.70 3.64 3.48 3.10 2.55 1.82 3.751090000 3.55 3.55 3.55 3.49 3.33 2.95 2.40 1.67 3.766720000 3.40 3.40 3.40 3.34 3.18 2.80 2.25 1.52 3.782340000 3.25 3.25 3.25 3.19 3.03 2.65 2.10 1.37 3.797970000 3.10 3.10 3.10 3.04 2.88 2.50 1.95 1.22 3.813590000 2.96 2.96 2.96 2.89 2.74 2.35 1.81 1.07 3.829220000 2.81 2.81 2.81 2.75 2.59 2.20 1.66 0.92 3.844840000 2.67 2.67 2.67 2.60 2.45 2.06 1.52 0.78 WAL (yrs) 5.28 5.28 5.28 5.26 5.21 5.14 5.06 4.95 Mod Dur 2.73 2.73 2.73 2.73 2.73 2.73 2.73 2.72 First Prin Pay 4/10/2005 4/10/2005 4/10/2005 4/10/2005 4/10/2005 4/10/2005 4/10/2005 4/10/2005 Maturity 10/10/2011 10/10/2011 10/10/2011 10/10/2011 10/10/2011 10/10/2011 10/10/2011 10/10/2011 Yield Spread 45 45 45 39 24 -13 -66 -138 - ----------------------------------------------------------------------------------------------------------------------------------- - ---------------------------------------------------------------------------------------------- ----------------------------------- Assumptions Treasury Curve as of - ---------------------------------------------------------------------------------------------- ----------------------------------- 1% Cleanup Call is Exercised Term (Yrs) Yield (BEY%) - ---------------------------- -------------- --------------- Initial Balance is as of Oct 2004 - --------------------------------- 1/12 2.4760% Prepay Rates are a Constant % of CPR 1/4 2.4760% 100% of All Prepayment Premiums are assumed to be collected 1/2 2.4760% Prepayment Premiums are allocated to one or more classes 2 2.4760% of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.7960% Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.3600% No Extensions on any Mortgage Loan 10 4.1420% 30 4.9320% - ---------------------------------------------------------------------------------------------- ----------------------------------- Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties - -------------------------------------------------------------------------------- This material is for your private information and Banc of America Securities LLC (the "Placement Agent") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Placement Agent considers reliable, but the Placement Agent does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Placement Agent makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Placement Agent and its affiliates, officers, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). The securities mentioned herein have not been and will not be registered under the Securities Act of 1933 (as amended, the "Securities Act") or any state securities or foreign securities laws and may not be re-offered, resold, pledged or otherwise transferred except (a) (i) to a person who is a qualified institutional buyer (as defined in the Securities Act) in a transaction meeting the requirements of Rule 144A under the Securities Act or (ii) pursuant to an exemption from registration under the Securities Act provided by Rule 144 thereunder (if available), (b) in accordance with all applicable securities laws of the United States or foreign jurisdictions and (c) otherwise in accordance with the terms of the Pooling and Servicing Agreement. Information contained in this material is current as of the date appearing on this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded by the information contained in any final Private Placement Memorandum for any securities actually sold to you. This material is furnished solely by the Placement Agent and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. Certain terms used herein are defined in the Private Placement Memorandum. Banc of America Securities LLC Price/Yield Table - Class XP - ----------------------------------------------------------------------------------------------------------------------------------- Security ID: BACM Series 2004-4 Initial Balance: 1,296,027,783 Settlement Date: 10/12/04 Initial Pass-Through Rate: 0.0525% Accrual Start Date: 11/10/04 First Pay Date: 10/01/04 - ----------------------------------------------------------------------------------------------------------------------------------- - --------------------------------------------------------------------------- Prepayment (CPR) Scenario 1 Scenario 2 - --------------------------------------------------------------------------- During YM 4.00% 10.00% During Points 25.00% 35.00% During Open 65.00% 75.00% - --------------------------------------------------------------------------- - --------------------------------------------------------------------------- Scenario 1 Scenario 2 - --------------------------------------------------------------------------- 3.594840000 5.39 5.74 3.610470000 5.23 5.57 3.626090000 5.07 5.41 3.641720000 4.91 5.25 3.657340000 4.75 5.09 3.672970000 4.60 4.94 3.688590000 4.44 4.78 3.704220000 4.29 4.63 3.719840000 4.13 4.47 3.735470000 3.98 4.32 3.751090000 3.83 4.17 3.766720000 3.68 4.01 3.782340000 3.53 3.86 3.797970000 3.38 3.72 3.813590000 3.23 3.57 3.829220000 3.09 3.42 3.844840000 2.94 3.27 WAL (yrs) 5.28 5.28 Mod Dur 2.72 2.71 First Prin Pay 3/10/2005 2/10/2005 Maturity 10/10/2011 10/10/2011 Yield Spread 73 107 - --------------------------------------------------------------------------- - ---------------------------------------------------------------------------------------------- ------------------------------------ Assumptions Treasury Curve as of - ---------------------------------------------------------------------------------------------- ------------------------------------ 1% Cleanup Call is Exercised Term (Yrs) Yield (BEY%) - ---------------------------- --------------- -------------- Initial Balance is as of Oct 2004 - --------------------------------- 1/12 2.4760% Prepay Rates are a Constant % of CPR 1/4 2.4760% 100% of All Prepayment Premiums are assumed to be collected 1/2 2.4760% Prepayment Premiums are allocated to one or more classes 2 2.4760% of the offered certificates as described under "Description of the Certificates-Distributions- 3 2.7960% Distributions of Prepayment Premiums" in the Prospectus Supplement. 5 3.3600% No Extensions on any Mortgage Loan 10 4.1420% 30 4.9320% - ---------------------------------------------------------------------------------------------- ------------------------------------ Rating Agencies Do Not Address the Likelihood of Receipt of Prepayment Penalties - -------------------------------------------------------------------------------- This material is for your private information and Banc of America Securities LLC (the "Placement Agent") is not soliciting any action based upon it. This material is not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. This material is based on information that the Placement Agent considers reliable, but the Placement Agent does not represent that it is accurate or complete and it should not be relied upon as such. By accepting this material the recipient agrees that it will not distribute or provide the material to any other person. The information contained in this material may pertain to securities that ultimately are not sold. The information contained in this material may be based on assumptions regarding market conditions and other matters as reflected herein. The Placement Agent makes no representation regarding the reasonableness of such assumptions or the likelihood that any of such assumptions will coincide with actual market conditions or events, and this material should not be relied upon for such purposes. The Placement Agent and its affiliates, officers, directors, partners and employees, including persons involved in the preparation or issuance of this material may, from time to time, have long or short positions in, and buy and sell, the securities mentioned therein or derivatives thereof (including options). The securities mentioned herein have not been and will not be registered under the Securities Act of 1933 (as amended, the "Securities Act") or any state securities or foreign securities laws and may not be re-offered, resold, pledged or otherwise transferred except (a) (i) to a person who is a qualified institutional buyer (as defined in the Securities Act) in a transaction meeting the requirements of Rule 144A under the Securities Act or (ii) pursuant to an exemption from registration under the Securities Act provided by Rule 144 thereunder (if available), (b) in accordance with all applicable securities laws of the United States or foreign jurisdictions and (c) otherwise in accordance with the terms of the Pooling and Servicing Agreement. Information contained in this material is current as of the date appearing on this material only. Information in this material regarding any assets backing any securities discussed herein supersedes all prior information regarding such assets. Any information in the material, whether regarding the assets backing any securities discussed herein or otherwise, will be superseded by the information contained in any final Private Placement Memorandum for any securities actually sold to you. This material is furnished solely by the Placement Agent and not by the issuer of the securities. The issuer of the securities has not prepared, reviewed or participated in the preparation of this material, is not responsible for the accuracy of this material and has not authorized the dissemination of this material. Certain terms used herein are defined in the Private Placement Memorandum. Banc of America Securities LLC