LEHMAN BROTHERS MORTGAGE BACKED SECURITIES ARMS DESK: 212-526-8315 MERIT SECURITIES CORPORATION [GRAPHIC OMITTED] - ------------------------------------------------------------------------------ DERIVED INFORMATION ------------------- $373,549,000 Senior/Subordinate Collateralized Bonds MERIT, Series 14-1 1m Libor Available Funds Floaters No Hard Cap - 30/360 - No Delay - ------------------------------------------------------------------------------- ------------------------------------------------------------------------------ To 35% Call (1) ------------------------------------------------------------------------------ Est. Stated Expected Approx. Tsy. WAL/ Win Initial Margin Final Ratings Class Size (2) Bmark (yrs) C/E (3) Maturity (S&P/Fitch) (4) ------------------------------------------------------------------------------ 1-A $363,069,000 1m Libor 2.11/3.42 3.00% 0.65% 02/28/27 AAA/AAA 1-M $ 10,480,000 1m Libor 3.46/3.42 0.20% 0.85% 11/28/31 AA ------------------------------------------------------------------------------ (1) Prepayments are set at a constant speed of 25% CPR, and assumes the payment date is the 28th of every month. (2) Includes Pre-Funded securities from SMSC 1993-6 and SMSC 1993-7. (3) Approximately 80% of the loans are covered by mortgage pool insurance. (4) Stated final maturity for Class A is the zero stated maturity plus 4 years, and for Class M it is the date of the latest maturing loan in the pool plus 4 years. ------------------------------------------------------------------------------ To Maturity (1) ------------------------------------------------------------------------------ Est. Stated Expected Approx. Tsy. WAL/Win Initial Margin Final Ratings Class Size (2) Bmark (yrs) C/E (3) Maturity (S&P/Fitch) (4) ------------------------------------------------------------------------------ 1-A $363,069,000 1m Libor 2.93/11.17 3.00% 0.65% 02/28/27 AAA/AAA 1-M $ 10,480,000 1m Libor 13.51/18.33 0.20% 0.85% 11/28/31 AA ------------------------------------------------------------------------------ (1) Prepayments are set at a constant speed of 25% CPR, and assumes the payment date is the 28th of every month. (2) Includes Pre-Funded securities from SMSC 1993-6 and SMSC 1993-7. (3) Approximately 80% of the loans are covered by mortgage pool insurance. (4) Stated final maturity for Class A is the zero stated maturity plus 4 years, and for Class M it is the date of the latest maturing loan in the pool plus 4 years. o After the call date, the margin on the Class A certificates is doubled, and the margin on the subordinate Class M Certificates increases by 75 bps. o The collateral pool for the MERIT Securities Corporation, Series 14-1 and Series 14-2 will be comprised of seven securities and five whole loan pools which were pledged as collateral in MERIT 10. In addition, two securities will be pre-funded from Saxon Mortgage Securities, Corp., Series 1993-6 and 1993-7. o Approximately 80.85% of the collateral pool have Mortgage Pool Insurance available from GEMICO or PMI for loss coverage on all loans currently in Ryland Mortgage Securities Corp. ("RMSC") and SMSC securities. - -------------------------------------------------------------------------------- This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). 1 - -------------------------------------------------------------------------------- CONTACTS - -------------------------------------------------------------------------------- MBS Trading Dan Wallace (212) 526-8315 Matt Miller + (212) 526-8315 Jake Freifeld (212) 526-8315 + Primary Contact - -------------------------------------------------------------------------------- CERTIFICATE PRINCIPAL AND INTEREST PAYMENTS - -------------------------------------------------------------------------------- - ------------------------------------ --------------------------------------- Principal Interest - ------------------------------------ --------------------------------------- o Sequentially to 1-A, 1-M, o Servicing Fee. OC, until the OC has doubled as o Master Servicing /Trustee Fee. a percent of the current o Class Coupons in order of rating collateral balance. o Excess Spread is used to pay o After the OC percentage has doubled interest shortfalls (including it gets paid with the remaining interest on interest), pay M past securities that continue to be paid principal losses, and create OC. sequentially. - ------------------------------------ --------------------------------------- o Losses will be allocated in the following order: pool insurance, excess spread, overcollateralization, Class 1-M, Class 1-A. o Credit Enhancement for the Certificates will consist of: (i) Pool Insurance on all loans currently in RMSC/SMSC securities, (ii) Excess Interest Collections, (iii) Overcollateralization, and (iv) Senior/Subordinate Structure. Senior/Subordinate Structure ---------------------------- 1 Month LIBOR Available Funds Floater - 30/360 - No Delay ------------------------------------------------------------------------------ Preliminary Summary of Terms MERIT 14-1 ------------------------------------------------------------------------------ [Graphic] Payment Priority MERIT 14-1 Class 1-A (Senior Certificates) Class 1-M Class 1-M is a subordinate class - -------------------------------------------------------------------------------- Credit Enhancement - -------------------------------------------------------------------------------- 1) Mortgage Pool Insurance (* for all loans currently in RMSC/SMSC securities) 2) Excess Interest 3) Overcollaterization - ------------------------------------------------------------------------------- This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). 2 - -------------------------------------------------------------------------------- Preliminary Summary of Terms Merit 14-1 - -------------------------------------------------------------------------------- Issuer: MERIT Securities Corporation Master Servicer(s): Norwest Bank Minnesota, N.A. 83%; DYNEX Capital, Inc. ("Dynex"), an affiliate of MERIT, 12%; Residential Funding Corp. ("RFC") 5%. (Note: The initial term of the Master servicing agreement with Dynex expires 12/31/99. This agreement may be renewed for subsequent quarterly terms by the Trustee, but only if the Trustee receives a letter from FITCH IBCA confirming that such a renewal will not result in a downgrading of its rating on any of the bonds.) Standby Master Norwest Bank Minnesota, N.A. Servicer: Trustee and Chase National Bank of Texas, National Association Custodian: Pre-Funding: As of the Closing Date, a Pre-funding account will be established and approximately $39,941,531 will be deposited into this account. Funds in this account will be used to purchase the performing loans in the securities, Saxon Mortgage Securities, Corp., Series 1993-6 and 1993-7, during the Pre-funding Period for addition to the Trust. The Pre-funding Period will last three months from Settlement Date. Bonds Offered: $373,549,000 Rating Agencies: Standard & Poor's Rating Services ("S&P") Class 1-A and 1-M; Fitch IBCA, Inc. ("Fitch") Class 1-A Only Underwriter: Lehman Brothers, Inc. Expected Pricing Date: November 8, 1999 Expected Settlement Date: November 12, 1999 Distribution Date: 28th of each month, or the next succeeding Business Date (First Payment Date: November 29, 1999) Cut-Off Date:: October 1, 1999 Delay Days: 0 day delay on the Bonds Day Count: 30/360 - -------------------------------------------------------------------------------- This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). 3 ----------------------------------------------------------------------------- Preliminary Summary of Terms MERIT 14-1 (continued) ----------------------------------------------------------------------------- Servicing Fee: Varies due to specified servicer. Calculated based of the scheduled pool principal balance, annually. Master Servicing /Trustee Fee: 0.02% of the scheduled pool principal balance, annually Credit Enhancement: -- Mortgage pool insurance on approximately 80.85% of the collateral; -- Subordination of monthly excess spread; -- Overcollateralization of 0.20% funded up-front. Optional Redemption: Option of the Issuer, the earlier of (a) October 2006 or (b) 35% of the original aggregate bond principal balance. The call will be executed at par. Clearing Agent: The Depository Trust Company (DTC), Euroclear and CEDEL. Denomination: Minimum $100,000; increments of $1,000. SMMEA Eligibility: The Class 1-A and Class 1-M will be SMMEA eligible. ERISA Eligibility All the classes are expected to be ERISA eligible. Prepayment Assumption: 25% CPR. Tax Status: Debt for tax. ----------------------------------------------------------------------------- This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). 4 - -------------------------------------------------------------------------------- Collateral Characteristics MERIT 14-1 as of October 1, 1999 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Total Number of Loans 2,358 Total Outstanding Loan Principal $377,269,609.20 100% Balance Total Number of Fixed-Rate Loans 63 Total Fixed-Rate Loan Principal $7,478,687.55 1.98% Balance Total Number of Adjustable-Rate Loans 2,295 Total Adjustable-Rate Loan Principal $369,790,921.65 98.02% Balance Level Paying 100.00% Average Loan Principal Balance $159,995.59 $ 3,986 - 1,100,810 Weighted Average Coupon 8.183% 6.500% - 15.000% Weighted Average Margin 2.979% 2.500% - 7.750% Weighted Average Original Term (months) 360 180 - 360 Range of Original Terms (months) 180: 0.18% 240: 0.04% 360: 99.79% Weighted Average Remaining Term (months) 279 57 - 337 Weighted Life Cap 12.560% 10.125% - 19.750% Weighted Average Periodic Cap 0.00% 0.54% 1.00% 88.30% 2.00% 11.16% Weighted Average Floor 4.423% 0.000% - 13.750% Weighted Average Original LTV 77.36% 7.69% - 95.40% Index Type One Year Treasury 11.16% Six month LIBOR 88.84% Lien Position (first/second) 100.00% / 0.0% Property Type: Single Family 90.83% Two to Four Family 0.05% PUD 1.31% Condominium 7.82% Geographic Distribution: Other states account individually for less than 2% of principal balance CA: 78.43% VA: 2.69% MD: 2.37% WA: 1.78% - -------------------------------------------------------------------------------- This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). 5 Yield Tables, reflecting a 11/12/99 Settlement ---------------------------------------------- Assumptions: 1m Libor 5.40%; 6m Libor 6.00125%; 1yr CMT 5.746% All Yields & Duration's are based on monthly payments of interest, zero day delay RUN TO 35% CALL CLASS A - ----------------------------------------------------------------------------------------------- 20% CPR 25% CPR 30% CPR 35% CPR -------------------------------------------------------------------------- PRICE Disc Marg Dur Disc Marg Dur Disc Marg Dur Disc Marg Dur - ----------------------------------------------------------------------------------------------- 99-15 0.873 2.33 0.926 1.88 0.985 1.55 1.043 1.32 99-16 0.859 0.91 0.965 1.02 99-17 0.846 0.893 0.945 0.997 99-18 0.833 0.877 0.926 0.973 99-19 0.82 0.861 0.906 0.95 99-20 0.807 2.33 0.845 1.88 0.886 1.55 0.927 1.32 99-21 0.794 0.828 0.866 0.904 99-22 0.781 0.812 0.847 0.881 99-23 0.768 0.796 0.827 0.858 99-24 0.755 0.78 0.807 0.835 99-25 0.741 2.33 0.763 1.88 0.788 1.55 0.811 1.32 99-26 0.728 0.747 0.768 0.788 99-27 0.715 0.731 0.748 0.765 99-28 0.702 0.715 0.729 0.742 99-29 0.689 0.699 0.709 0.719 99-30 0.676 2.34 0.682 1.88 0.689 1.55 0.696 1.32 99-31 0.663 0.666 0.67 0.673 100-00 0.65 0.65 0.65 0.65 100-01 0.637 0.634 0.63 0.627 100-02 0.624 0.618 0.611 0.604 100-03 0.611 2.34 0.602 1.89 0.591 1.55 0.581 1.32 100-04 0.598 0.585 0.572 0.558 100-05 0.585 0.569 0.552 0.535 100-06 0.572 0.553 0.532 0.512 100-07 0.559 0.537 0.513 0.489 100-08 0.546 2.34 0.521 1.89 0.493 1.56 0.466 1.33 100-09 0.533 0.505 0.474 0.443 100-10 0.52 0.489 0.454 0.42 100-11 0.507 0.473 0.435 0.397 100-12 0.494 0.457 0.415 0.374 100-13 0.481 2.34 0.44 1.89 0.396 1.56 0.351 1.33 100-14 0.468 0.424 0.376 0.329 100-15 0.455 0.408 0.357 0.306 100-16 0.442 0.392 0.337 0.283 100-17 0.429 0.376 0.318 0.26 - ----------------------------------------------------------------------------------------------- Average Life : 2.67 2.11 1.71 1.44 First Pay : 11/28/99 11/28/99 11/28/99 11/28/99 Last Pay : 3/28/04 4/28/03 8/28/02 3/28/02 Collateral Loss: - - - - Agg. Bond Loss : - - - - - ----------------------------------------------------------------------------------------------- RUN TO 35% CALL CLASS A - ------------------------------------------------------------------------------------- 40% CPR 45% CPR 50% CPR ---------------------------------------------------------------- PRICE Dur Disc Marg Dur Disc Marg Dur Disc Marg Dur - ------------------------------------------------------------------------------------- 99-15 1.32 1.116 1.11 1.185 0.97 1.268 0.84 99-16 1.088 1.153 1.232 99-17 1.061 1.121 1.195 99-18 1.033 1.09 1.159 99-19 1.006 1.058 1.122 99-20 1.32 0.979 1.11 1.027 0.97 1.086 0.84 99-21 0.951 0.995 1.05 99-22 0.924 0.964 1.013 99-23 0.896 0.933 0.977 99-24 0.869 0.901 0.94 99-25 1.32 0.841 1.11 0.87 0.97 0.904 0.84 99-26 0.814 0.838 0.868 99-27 0.787 0.807 0.831 99-28 0.759 0.775 0.795 99-29 0.732 0.744 0.759 99-30 1.32 0.705 1.12 0.713 0.97 0.722 0.84 99-31 0.677 0.681 0.686 100-00 0.65 0.65 0.65 100-01 0.623 0.619 0.614 100-02 0.595 0.587 0.578 100-03 1.32 0.568 1.12 0.556 0.97 0.541 0.84 100-04 0.541 0.525 0.505 100-05 0.514 0.494 0.469 100-06 0.486 0.462 0.433 100-07 0.459 0.431 0.397 100-08 1.33 0.432 1.12 0.4 0.97 0.361 0.84 100-09 0.405 0.369 0.325 100-10 0.378 0.337 0.288 100-11 0.35 0.306 0.252 100-12 0.323 0.275 0.216 100-13 1.33 0.296 1.12 0.244 0.98 0.18 0.84 100-14 0.269 0.213 0.144 100-15 0.242 0.182 0.108 100-16 0.215 0.151 0.072 100-17 0.188 0.12 0.036 - ------------------------------------------------------------------------------------- Average Life : 1.2 1.04 0.9 First Pay : 11/28/99 11/28/99 11/28/99 Last Pay : 10/28/01 7/28/01 4/28/01 Collateral Loss: - - - Agg. Bond Loss : - - - - ------------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). 6 RUN TO 35% CALL CLASS M - ----------------------------------------------------------------------------------------------- 20% CPR 25% CPR 30% CPR 35% CPR --------------------------------------------------------------------------- PRICE Disc Marg Dur Disc Marg Dur Disc Marg Dur Disc Marg Dur - ----------------------------------------------------------------------------------------------- 99-15 0.989 3.72 1.022 3.02 1.058 2.49 1.092 2.14 99-16 0.981 1.011 1.046 1.077 99-17 0.973 1.001 1.034 1.063 99-18 0.965 0.991 1.021 1.049 99-19 0.957 0.981 1.009 1.035 99-20 0.948 3.72 0.971 3.02 0.997 2.49 1.02 2.15 99-21 0.94 0.961 0.985 1.006 99-22 0.932 0.951 0.972 0.992 99-23 0.924 0.941 0.96 0.978 99-24 0.916 0.931 0.948 0.964 99-25 0.907 3.72 0.921 3.02 0.936 2.49 0.949 2.15 99-26 0.899 0.91 0.923 0.935 99-27 0.891 0.9 0.911 0.921 99-28 0.883 0.89 0.899 0.907 99-29 0.875 0.88 0.887 0.893 99-30 0.866 3.72 0.87 3.03 0.874 2.49 0.878 2.15 99-31 0.858 0.86 0.862 0.864 100-00 0.85 0.85 0.85 0.85 100-01 0.842 0.84 0.838 0.836 100-02 0.834 0.83 0.826 0.822 100-03 0.825 3.72 0.82 3.03 0.813 2.49 0.807 2.15 100-04 0.817 0.81 0.801 0.793 100-05 0.809 0.8 0.789 0.779 100-06 0.801 0.79 0.777 0.765 100-07 0.793 0.78 0.765 0.751 100-08 0.785 3.73 0.77 3.03 0.752 2.49 0.737 2.15 100-09 0.777 0.76 0.74 0.723 100-10 0.768 0.75 0.728 0.708 100-11 0.76 0.74 0.716 0.694 100-12 0.752 0.73 0.704 0.68 100-13 0.744 3.73 0.719 3.03 0.692 2.49 0.666 2.15 100-14 0.736 0.709 0.679 0.652 100-15 0.728 0.699 0.667 0.638 100-16 0.72 0.689 0.655 0.624 100-17 0.711 0.679 0.643 0.61 - ----------------------------------------------------------------------------------------------- Average Life : 4.38 3.46 2.79 2.38 First Pay : 3/28/04 4/28/03 8/28/02 3/28/02 Last Pay : 3/28/04 4/28/03 8/28/02 3/28/02 Collateral Loss: - - - - Agg. Bond Loss : - - - - - ----------------------------------------------------------------------------------------------- RUN TO 35% CALL CLASS M - ---------------------------------------------------------------------------- 40% CPR 45% CPR 50% CPR --------------------------------------------------------- PRICE Disc Marg Dur Disc Marg Dur Disc Marg Dur - ---------------------------------------------------------------------------- 99-15 1.139 1.79 1.179 1.57 1.232 1.35 99-16 1.122 1.16 1.21 99-17 1.105 1.14 1.187 99-18 1.088 1.121 1.165 99-19 1.071 1.102 1.142 99-20 1.054 1.79 1.082 1.58 1.12 1.36 99-21 1.037 1.063 1.097 99-22 1.02 1.043 1.075 99-23 1.003 1.024 1.052 99-24 0.986 1.005 1.03 99-25 0.969 1.79 0.985 1.58 1.007 1.36 99-26 0.952 0.966 0.985 99-27 0.935 0.947 0.962 99-28 0.918 0.927 0.94 99-29 0.901 0.908 0.917 99-30 0.884 1.79 0.889 1.58 0.895 1.36 99-31 0.867 0.869 0.872 100-00 0.85 0.85 0.85 100-01 0.833 0.831 0.828 100-02 0.816 0.811 0.805 100-03 0.799 1.79 0.792 1.58 0.783 1.36 100-04 0.782 0.773 0.76 100-05 0.765 0.754 0.738 100-06 0.748 0.734 0.716 100-07 0.731 0.715 0.693 100-08 0.714 1.8 0.696 1.58 0.671 1.36 100-09 0.697 0.677 0.648 100-10 0.681 0.657 0.626 100-11 0.664 0.638 0.604 100-12 0.647 0.619 0.581 100-13 0.63 1.8 0.6 1.58 0.559 1.36 100-14 0.613 0.58 0.537 100-15 0.596 0.561 0.514 100-16 0.579 0.542 0.492 100-17 0.562 0.523 0.47 - ---------------------------------------------------------------------------- Average Life : 1.96 1.71 1.46 First Pay : 10/28/01 7/28/01 4/28/01 Last Pay : 10/28/01 7/28/01 4/28/01 Collateral Loss: - - - Agg. Bond Loss : - - - - ---------------------------------------------------------------------------- - -------------------------------------------------------------------------------- This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). 7 RUN TO MATURITY CLASS A - ----------------------------------------------------------------------------------------------- 20% CPR 25% CPR 30% CPR 35% CPR --------------------------------------------------------------------------- PRICE Disc Marg Dur Disc Marg Dur Disc Marg Dur Disc Marg Dur - ----------------------------------------------------------------------------------------------- 99-15 0.965 2.98 1.012 2.45 1.062 2.05 1.106 1.75 99-16 0.955 1 1.047 1.089 99-17 0.945 0.987 1.032 1.071 99-18 0.935 0.975 1.017 1.054 99-19 0.924 0.963 1.003 1.036 99-20 0.914 2.98 0.95 2.45 0.988 2.05 1.019 1.75 99-21 0.904 0.938 0.973 1.001 99-22 0.894 0.925 0.958 0.984 99-23 0.884 0.913 0.943 0.966 99-24 0.873 0.9 0.928 0.949 99-25 0.863 2.99 0.888 2.45 0.913 2.06 0.931 1.75 99-26 0.853 0.875 0.899 0.914 99-27 0.843 0.863 0.884 0.897 99-28 0.832 0.851 0.869 0.879 99-29 0.822 0.838 0.854 0.862 99-30 0.812 2.99 0.826 2.46 0.839 2.06 0.845 1.76 99-31 0.802 0.813 0.825 0.827 100-00 0.792 0.801 0.81 0.81 100-01 0.782 0.789 0.795 0.793 100-02 0.771 0.776 0.78 0.775 100-03 0.761 3 0.764 2.46 0.766 2.06 0.758 1.76 100-04 0.751 0.751 0.751 0.741 100-05 0.741 0.739 0.736 0.723 100-06 0.731 0.727 0.721 0.706 100-07 0.721 0.714 0.707 0.689 100-08 0.711 3 0.702 2.47 0.692 2.07 0.671 1.76 100-09 0.701 0.69 0.677 0.654 100-10 0.69 0.678 0.663 0.637 100-11 0.68 0.665 0.648 0.62 100-12 0.67 0.653 0.633 0.602 100-13 0.66 3.01 0.641 2.47 0.619 2.07 0.585 1.76 100-14 0.65 0.628 0.604 0.568 100-15 0.64 0.616 0.589 0.551 100-16 0.63 0.604 0.575 0.534 100-17 0.62 0.592 0.56 0.517 - ----------------------------------------------------------------------------------------------- Average Life : 3.68 2.92 2.39 2 First Pay : 11/28/99 11/28/99 11/28/99 11/28/99 Last Pay : 8/28/13 1/28/11 2/28/09 8/28/07 Collateral Loss: - - - - Agg. Bond Loss : - - - - - ----------------------------------------------------------------------------------------------- RUN TO MATURITY CLASS A - ---------------------------------------------------------------------------- 40% CPR 45% CPR 50% CPR -------------------------------------------------------- PRICE Disc Marg Dur Disc Marg Dur Disc Marg Dur - ---------------------------------------------------------------------------- 99-15 1.164 1.5 1.214 1.31 1.277 1.14 99-16 1.144 1.191 1.25 99-17 1.123 1.168 1.223 99-18 1.103 1.144 1.197 99-19 1.083 1.121 1.17 99-20 1.062 1.51 1.098 1.31 1.143 1.14 99-21 1.042 1.074 1.117 99-22 1.022 1.051 1.09 99-23 1.002 1.028 1.063 99-24 0.982 1.005 1.037 99-25 0.961 1.51 0.981 1.31 1.01 1.15 99-26 0.941 0.958 0.984 99-27 0.921 0.935 0.957 99-28 0.901 0.912 0.93 99-29 0.881 0.888 0.904 99-30 0.86 1.51 0.865 1.31 0.877 1.15 99-31 0.84 0.842 0.851 100-00 0.82 0.819 0.824 100-01 0.8 0.796 0.798 100-02 0.78 0.773 0.772 100-03 0.76 1.51 0.749 1.32 0.745 1.15 100-04 0.74 0.726 0.719 100-05 0.72 0.703 0.692 100-06 0.7 0.68 0.666 100-07 0.68 0.657 0.639 100-08 0.66 1.52 0.634 1.32 0.613 1.15 100-09 0.639 0.611 0.587 100-10 0.619 0.588 0.56 100-11 0.599 0.565 0.534 100-12 0.579 0.542 0.508 100-13 0.559 1.52 0.519 1.32 0.481 1.16 100-14 0.54 0.496 0.455 100-15 0.52 0.473 0.429 100-16 0.5 0.45 0.403 100-17 0.48 0.427 0.376 - ---------------------------------------------------------------------------- Average Life : 1.7 1.46 1.26 First Pay : 11/28/99 11/28/99 11/28/99 Last Pay : 6/28/06 7/28/05 10/28/04 Collateral Loss: - - - Agg. Bond Loss : - - - - ---------------------------------------------------------------------------- - -------------------------------------------------------------------------------- This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). 8 RUN TO MATURITY CLASS M - ---------------------------------------------------------------------------------------------- 20% CPR 25% CPR 30% CPR 35% CPR --------------------------------------------------------------------------- PRICE Disc Marg Dur Disc Marg Dur Disc Marg Dur Disc Marg Dur - ---------------------------------------------------------------------------------------------- 99-15 1.365 9.68 1.398 8.64 1.424 7.67 1.44 6.81 99-16 1.362 1.394 1.42 1.436 99-17 1.359 1.391 1.416 1.431 99-18 1.356 1.387 1.412 1.427 99-19 1.353 1.384 1.408 1.422 99-20 1.349 9.69 1.38 8.64 1.404 7.67 1.418 6.81 99-21 1.346 1.376 1.4 1.413 99-22 1.343 1.373 1.396 1.409 99-23 1.34 1.369 1.392 1.404 99-24 1.337 1.366 1.388 1.4 99-25 1.334 9.69 1.362 8.65 1.384 7.68 1.395 6.82 99-26 1.331 1.359 1.38 1.391 99-27 1.327 1.355 1.377 1.386 99-28 1.324 1.352 1.373 1.382 99-29 1.321 1.348 1.369 1.377 99-30 1.318 9.7 1.345 8.65 1.365 7.68 1.373 6.82 99-31 1.315 1.341 1.361 1.369 100-00 1.312 1.338 1.357 1.364 100-01 1.309 1.334 1.353 1.36 100-02 1.305 1.331 1.349 1.355 100-03 1.302 9.7 1.327 8.66 1.345 7.68 1.351 6.82 100-04 1.299 1.324 1.341 1.346 100-05 1.296 1.32 1.337 1.342 100-06 1.293 1.317 1.333 1.337 100-07 1.29 1.313 1.329 1.333 100-08 1.287 9.71 1.31 8.66 1.325 7.69 1.328 6.83 100-09 1.284 1.306 1.321 1.324 100-10 1.28 1.303 1.317 1.32 100-11 1.277 1.299 1.313 1.315 100-12 1.274 1.296 1.309 1.311 100-13 1.271 9.72 1.292 8.67 1.305 7.69 1.306 6.83 100-14 1.268 1.289 1.301 1.302 100-15 1.265 1.285 1.298 1.297 100-16 1.262 1.282 1.294 1.293 100-17 1.259 1.278 1.29 1.289 - ---------------------------------------------------------------------------------------------- Average Life : 16.27 13.5 11.26 9.51 First Pay : 8/28/13 1/28/11 2/28/09 8/28/07 Last Pay : 9/28/20 3/28/18 8/28/15 4/28/13 Collateral Loss: - - - - Agg. Bond Loss : - - - - - ---------------------------------------------------------------------------------------------- RUN TO MATURITY CLASS M - ---------------------------------------------------------------------------- 40% CPR 45% CPR 50% CPR --------------------------------------------------------- PRICE Disc Marg Dur Disc Marg Dur Disc Marg Dur - ---------------------------------------------------------------------------- 99-15 1.464 6.06 1.477 5.4 1.497 4.82 99-16 1.459 1.472 1.49 99-17 1.454 1.466 1.484 99-18 1.449 1.46 1.478 99-19 1.444 1.455 1.471 99-20 1.439 6.06 1.449 5.4 1.465 4.82 99-21 1.434 1.443 1.459 99-22 1.429 1.438 1.453 99-23 1.424 1.432 1.446 99-24 1.419 1.427 1.44 99-25 1.414 6.06 1.421 5.4 1.434 4.82 99-26 1.408 1.415 1.427 99-27 1.403 1.41 1.421 99-28 1.398 1.404 1.415 99-29 1.393 1.398 1.408 99-30 1.388 6.06 1.393 5.41 1.402 4.82 99-31 1.383 1.387 1.396 100-00 1.378 1.382 1.389 100-01 1.373 1.376 1.383 100-02 1.368 1.37 1.377 100-03 1.363 6.07 1.365 5.41 1.371 4.83 100-04 1.358 1.359 1.364 100-05 1.353 1.353 1.358 100-06 1.348 1.348 1.352 100-07 1.343 1.342 1.345 100-08 1.338 6.07 1.337 5.41 1.339 4.83 100-09 1.333 1.331 1.333 100-10 1.328 1.325 1.327 100-11 1.323 1.32 1.32 100-12 1.318 1.314 1.314 100-13 1.313 6.07 1.309 5.41 1.308 4.83 100-14 1.308 1.303 1.302 100-15 1.303 1.297 1.295 100-16 1.298 1.292 1.289 100-17 1.293 1.286 1.283 - ---------------------------------------------------------------------------- Average Life : 8.11 6.99 6.07 First Pay : 6/28/06 7/28/05 10/28/04 Last Pay : 5/28/11 11/28/09 7/28/08 Collateral Loss: - - - Agg. Bond Loss : - - - - ---------------------------------------------------------------------------- - -------------------------------------------------------------------------------- This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). 9