1 Exhibit 99.2 LEHMAN BROTHERS DERIVED INFORMATION $925,000,000 Certificates (Approximate) ADVANTA MORTGAGE LOAN TRUST 1998-2 ADVANTA Mortgage Conduit Services, Inc. (Sponsor) ADVANTA Mortgage Corp. USA (Master Servicer) 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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 THIS INFORMATION SUPERSEDES ANY PRIOR VERSIONS HEREOF AND WILL BE DEEMED TO BE SUPERSEDED BY ANY SUBSEQUENT VERSIONS (INCLUDING, WITH RESPECT TO ANY DESCRIPTION OF THE SECURITIES OR UNDERLYING ASSETS, THE INFORMATION CONTAINED IN THE OFFERING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 SECURITIES OFFERED 2 EXPECTED MODIFIED PAYMENT RATINGS AVG LIFE DURATION WINDOW (S&P/ TO CALL / TO CALL/ TO CALL/ PRICE CLASS(1) DESCRIPTION MOODY'S) BALANCE MTY(1)(2) MTY(1)(2) MTY(1)(2) DAY COUNT BENCHMARK TALK A-1 FRM Fixed SEQ AAA/Aaa $73,000,000 0.85 / 0.85 0.80 / 0.80 18 / 18 30/360 +[ ] A-2 FRM Fixed SEQ AAA/Aaa 41,000,000 1.99 / 1.99 1.82 / 1.82 13 / 13 30/360 +[ ] A-3 FRM Fixed SEQ AAA/Aaa 34,000,000 3.01 / 3.01 2.66 / 2.66 14 / 14 30/360 +[ ] A-4 FRM Fixed SEQ AAA/Aaa 17,000,000 4.01 / 4.01 3.44 / 3.44 11 / 11 30/360 +[ ] A-5 FRM Fixed SEQ AAA/Aaa 24,000,000 5.24 / 5.24 4.32 / 4.32 24 / 24 30/360 +[ ] A-6 FRM Fixed SEQ AAA/Aaa 27,000,000 7.70 / 9.83 5.84 / 6.89 21 / 120 30/360 +[ ] A-7 FRM NAS Class AAA/Aaa 15,000,000 5.39 / 5.39 4.42 / 4.42 51 / 51 30/360 +[ ] A-8 FRM NAS Class AAA/Aaa 9,000,000 7.77 / 8.21 5.94 / 6.18 10 / 92 30/360 +[ ] A-9 FRM Fixed SEQ(3) AAA/Aaa 88,000,000 0.85 / 0.85 0.80 / 0.80 18 / 18 30/360 Not Available A-10 FRM Fixed SEQ(3) AAA/Aaa 61,000,000 2.00 / 2.00 1.83 1.84 30/360 Not Available / 1.83 14 / 14 A-11 FRM Fixed SEQ(3) AAA/Aaa 38,000,000 3.00 / 3.00 2.66 / 2.66 12 / 12 30/360 Not Available A-12 FRM Fixed SEQ(3) AAA/Aaa 28,000,000 3.99 / 3.99 3.43 / 3.43 13 / 13 30/360 Not Available A-13 FRM Fixed SEQ(3) AAA/Aaa 28,000,000 5.26 / 5.26 4.33 / 4.33 21 / 21 30/360 Not Available A-14 FRM Fixed SEQ(3) AAA/Aaa 36,000,000 7.65 / 9.63 5.79 / 6.77 23 / 117 30/360 Not Available A-15 FRM NAS Class(3) AAA/Aaa 31,000,000 6.27 / 6.42 4.98 / 5.07 60 / 143 30/360 F-IO FRM NAS IO(4) AAAr/Aaa 55,000,000 2.51 / 2.51 1.23 / 1.23 30 / 30 30/360 +[ ] A-16 ARM Floater AAA/Aaa 180,000,000 3.13 / 3.47 2.64 / 2.82 96 / 212 Actual/360 +[ ] A-17 ARM Fixed NAS AAA/Aaa 60,000,000 2.54 / 2.54 2.27 / 2.27 42 / 42 30/360 +[ ] A-18 ARM Floater(3) AAA/Aaa 101,250,000 3.13 / 3.46 2.64 / 2.82 96 / 211 Actual/360 Not Available A-19 ARM Fixed NAS(3) AAA/Aaa 33,750,000 2.53 / 2.53 2.27 / 2.27 42 / 42 30/360 Not Available A-IO ARM Fixed NAS IO(4) AAAr/Aaa 93,750,000 1.18 / 1.18 0.61 / 0.61 14 / 14 30/360 +[ ] Notes: (1) Both the fixed rate and ARM certificates are priced to the 10% optional clean-up call and are noted in boldface. (2) Fixed Rate Group I Certificates: The fixed rate certificates assume 120% PPC which equates to a ramped CPR starting at 3.6% CPR in the first month increasing to 24.0% CPR over 12 months, and remaining at 24.0% CPR thereafter on a seasoning adjusted basis. Adjustable Rate Group II Certificates: 25% CPR. (3) Certificates backed by the Group IB and Group IIB loans have been placed at the time of this offering. (4) The NAS IO classes are based on the aggregate balance of the sub-group NAS classes within each loan group and will be sole-managed by Morgan Stanley. 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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 3 PROJECTED PERFORMANCE UNDER VARYING PREPAYMENT ASSUMPTIONS GROUP IA AND IIA FRM AND ARM SUB-GROUPS - TO CALL PPC % 0 50 100 120 175 200 250 CPR % 0 10 20 25 30 40 50 CLASS A-1 Average Life 7.40 1.59 0.97 0.85 0.66 0.61 0.52 Mod Duration 5.39 1.45 0.91 0.80 0.63 0.58 0.50 First Prin 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 Last Prin 1/25/12 8/25/01 3/25/00 12/25/99 8/25/99 6/25/99 4/25/99 Payment Window 163 38 21 18 14 12 10 CLASS A-2 Average Life 14.65 4.29 2.34 1.99 1.44 1.28 1.06 Mod Duration 9.37 3.66 2.12 1.82 1.34 1.20 1.00 First Prin 1/25/12 8/25/01 3/25/00 12/25/99 8/25/99 6/25/99 4/25/99 Last Prin 4/25/13 1/25/04 5/25/01 12/25/00 3/25/00 1/25/00 9/25/99 Payment Window 16 30 15 13 8 8 6 CLASS A-3 Average Life 17.21 7.10 3.60 3.01 2.08 1.83 1.47 Mod Duration 10.24 5.56 3.14 2.66 1.90 1.68 1.37 First Prin 4/25/13 1/25/04 5/25/01 12/25/00 3/25/00 1/25/00 9/25/99 Last Prin 12/25/17 7/25/07 10/25/02 1/25/02 11/25/00 8/25/00 2/25/00 Payment Window 57 43 18 14 9 8 6 CLASS A-4 Average Life 21.33 10.23 4.85 4.01 2.67 2.32 1.83 Mod Duration 11.36 7.31 4.06 3.44 2.39 2.10 1.68 First Prin 12/25/17 7/25/07 10/25/02 1/25/02 11/25/00 8/25/00 2/25/00 Last Prin 8/25/21 11/25/09 11/25/03 11/25/02 5/25/01 12/25/00 6/25/00 Payment Window 45 29 14 11 7 5 5 CLASS A-5 Average Life 25.11 13.19 6.60 5.24 3.37 2.88 2.22 Mod Duration 12.12 8.64 5.22 4.32 2.95 2.56 2.01 First Prin 8/25/21 11/25/09 11/25/03 11/25/02 5/25/01 12/25/00 6/25/00 Last Prin 4/25/25 4/25/13 12/25/06 10/25/04 5/25/02 10/25/01 12/25/00 Payment Window 45 42 38 24 13 11 7 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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 4 PROJECTED PERFORMANCE UNDER VARYING PREPAYMENT ASSUMPTIONS GROUP IA AND IIA FRM AND ARM SUB-GROUPS - TO CALL PPC % 0 50 100 120 175 200 250 CPR % 0 10 20 25 30 40 50 CLASS A-6 Average Life 27.95 15.83 9.61 7.70 5.00 4.11 3.02 Mod Duration 12.27 9.47 6.88 5.84 4.11 3.48 2.65 First Prin 4/25/25 4/25/13 12/25/06 10/25/04 5/25/02 10/25/01 12/25/00 Last Prin 9/25/26 9/25/14 3/25/08 6/25/06 4/25/04 2/25/03 12/25/01 Payment Window 18 18 16 21 24 17 13 CLASS A-7 Average Life 9.76 6.57 5.66 5.39 4.73 4.23 3.46 Mod Duration 7.02 5.20 4.61 4.42 3.97 3.61 3.03 First Prin 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 Last Prin 1/25/12 12/25/06 11/25/05 9/25/05 4/25/04 2/25/03 12/25/01 Payment Window 127 66 53 51 34 20 6 CLASS A-8 Average Life 15.26 10.62 8.48 7.77 5.84 4.68 3.51 Mod Duration 9.40 7.42 6.33 5.94 4.73 3.92 3.05 First Prin 1/25/12 12/25/06 11/25/05 9/25/05 4/25/04 2/25/03 12/25/01 Last Prin 9/25/26 9/25/14 3/25/08 6/25/06 4/25/04 2/25/03 12/25/01 Payment Window 177 94 29 10 1 1 1 CLASS A-16 Average Life 23.98 8.38 4.11 3.13 2.33 1.49 0.88 Mod Duration 12.29 5.94 3.34 2.64 2.04 1.35 0.83 First Prin 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 Last Prin 9/25/26 9/25/14 3/25/08 6/25/06 4/25/04 2/25/03 12/25/01 Payment Window 339 195 117 96 70 56 42 CLASS A-17 Average Life 13.25 3.35 2.67 2.54 2.46 2.41 2.50 Mod Duration 8.52 2.91 2.38 2.27 2.21 2.18 2.25 First Prin 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 Last Prin 8/25/17 2/25/04 8/25/03 7/25/03 7/25/03 2/25/03 12/25/01 Payment Window 211 49 43 42 42 37 23 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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 5 PROJECTED PERFORMANCE UNDER VARYING PREPAYMENT ASSUMPTIONS GROUP IA AND IIA FRM AND ARM SUB-GROUPS - TO CALL PPC % 0 50 100 120 175 200 250 CPR % 0 10 20 25 30 40 50 CLASS A-1 Average Life 7.40 1.59 0.97 0.85 0.66 0.61 0.52 Mod Duration 5.39 1.45 0.91 0.80 0.63 0.58 0.50 First Prin 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 Last Prin 1/25/12 8/25/01 3/25/00 12/25/99 8/25/99 6/25/99 4/25/99 Payment Window 163 38 21 18 14 12 10 CLASS A-2 Average Life 14.65 4.29 2.34 1.99 1.44 1.28 1.06 Mod Duration 9.37 3.66 2.12 1.82 1.34 1.20 1.00 First Prin 1/25/12 8/25/01 3/25/00 12/25/99 8/25/99 6/25/99 4/25/99 Last Prin 4/25/13 1/25/04 5/25/01 12/25/00 3/25/00 1/25/00 9/25/99 Payment Window 16 30 15 13 8 8 6 CLASS A-3 Average Life 17.21 7.10 3.60 3.01 2.08 1.83 1.47 Mod Duration 10.24 5.56 3.14 2.66 1.90 1.68 1.37 First Prin 4/25/13 1/25/04 5/25/01 12/25/00 3/25/00 1/25/00 9/25/99 Last Prin 12/25/17 7/25/07 10/25/02 1/25/02 11/25/00 8/25/00 2/25/00 Payment Window 57 43 18 14 9 8 6 CLASS A-4 Average Life 21.33 10.23 4.85 4.01 2.67 2.32 1.83 Mod Duration 11.36 7.31 4.06 3.44 2.39 2.10 1.68 First Prin 12/25/17 7/25/07 10/25/02 1/25/02 11/25/00 8/25/00 2/25/00 Last Prin 8/25/21 11/25/09 11/25/03 11/25/02 5/25/01 12/25/00 6/25/00 Payment Window 45 29 14 11 7 5 5 CLASS A-5 Average Life 25.11 13.19 6.60 5.24 3.37 2.88 2.22 Mod Duration 12.12 8.64 5.22 4.32 2.95 2.56 2.01 First Prin 8/25/21 11/25/09 11/25/03 11/25/02 5/25/01 12/25/00 6/25/00 Last Prin 4/25/25 4/25/13 12/25/06 10/25/04 5/25/02 10/25/01 12/25/00 Payment Window 45 42 38 24 13 11 7 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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 6 PROJECTED PERFORMANCE UNDER VARYING PREPAYMENT ASSUMPTIONS GROUP IA AND IIA FRM AND ARM SUB-GROUPS - TO CALL PPC % 0 50 100 120 175 200 250 CPR % 0 10 20 25 30 40 50 CLASS A-6 Average Life 28.38 18.32 11.88 9.83 5.66 4.40 3.05 Mod Duration 12.34 10.16 7.88 6.89 4.50 3.67 2.68 First Prin 4/25/25 4/25/13 12/25/06 10/25/04 5/25/02 10/25/01 12/25/00 Last Prin 3/25/28 2/25/26 5/25/17 9/25/14 5/25/10 9/25/08 5/25/02 Payment Window 36 155 126 120 97 84 18 CLASS A-7 Average Life 9.76 6.57 5.66 5.39 4.79 4.58 3.99 Mod Duration 7.02 5.20 4.61 4.42 4.01 3.86 3.43 First Prin 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 Last Prin 1/25/12 12/25/06 11/25/05 9/25/05 11/25/04 7/25/04 4/25/03 Payment Window 127 66 53 51 41 37 22 CLASS A-8 Average Life 15.26 10.62 8.64 8.21 7.57 7.33 5.82 Mod Duration 9.40 7.43 6.42 6.18 5.80 5.65 4.69 First Prin 1/25/12 12/25/06 11/25/05 9/25/05 11/25/04 7/25/04 4/25/03 Last Prin 1/25/28 12/25/25 4/25/13 4/25/13 2/25/10 7/25/08 3/25/06 Payment Window 193 229 90 92 64 49 36 CLASS A-16 Average Life 24.15 9.34 4.59 3.47 2.70 1.68 0.99 Mod Duration 12.32 6.24 3.57 2.82 2.27 1.48 0.92 First Prin 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 Last Prin 4/25/28 5/25/27 3/25/20 2/25/16 12/25/12 9/25/08 1/25/06 Payment Window 358 347 261 212 174 123 91 CLASS A-17 Average Life 13.25 3.35 2.67 2.54 2.46 2.41 2.56 Mod Duration 8.52 2.91 2.38 2.27 2.21 2.18 2.29 First Prin 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 Last Prin 8/25/17 2/25/04 8/25/03 7/25/03 7/25/03 7/25/03 7/25/03 Payment Window 211 49 43 42 42 42 42 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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 GROUP IA FRM LOANS - COLLATERAL SUMMARY 7 - ------------------------------------------------------------------------------------------------------------------------- GROUP IA FRM LOANS - ------------------------------------------------------------------------------------------------------------------------- NUMBER OF LOANS 2,825 TOTAL OUTSTANDING PRINCIPAL BALANCE $180,012,877 BALLOON (% OF TOTAL) 18.69% LEVEL PAY (% OF TOTAL) 81.31% AVERAGE PRINCIPAL BALANCE $63,721 $2,451 - $914,474 WEIGHTED AVERAGE LOAN RATE 10.41% 7.40% - 17.45% WEIGHTED AVERAGE ORIGINAL TERM (MOS.) 264 36 - 360 WEIGHTED AVERAGE REMAINING TERM (MOS.) 262 32 - 360 WEIGHTED AVERAGE CLTV 76.72% 11.67% - 95.00% WEIGHTED AVERAGE CLTV > 80.00% 42.04% WEIGHTED AVERAGE SECOND MORTGAGE RATIO 31.13% (for second liens only) LIEN POSITION (FIRST/SECOND) 94.22% / 5.78% PROPERTY TYPE SINGLE FAMILY/PUD 85.02% CONDO/TOWNHOUSE/ROWHOUSE 3.96% TWO TO FOUR FAMILY 4.43% PREFABRICATED SINGLE FAMILY 5.35% OTHER 1.24% OCCUPANCY STATUS OWNER OCCUPIED 90.64% INVESTOR OWNER 9.36% GEOGRAPHIC DISTRIBUTION other states account individually for less than CA 13.19% PA 5.83% 5% of Group I pool balance MI 10.38% FL 6.87% ORIGINATION YEAR 1998 90.85% 1997 9.10% 1995 0.05% CREDIT CLASS A+/A/A- 66.25% C/C- 10.28% B/B- 18.46% D 5.01% PREPAYMENT PENALTY Yes 77.17% No 22.83% - --------------------------------------------------- ---------------- -------------------- ------------- ----------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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 7 - --------------------------------------------------------------------------------------------------------------------- GROUP IA FRM LOANS GEOGRAPHIC DISTRIBUTION - --------------------------------------------------------------------------------------------------------------------- AGGREGATE % OF AGGREGATE NUMBER OF PRINCIPAL PRINCIPAL STATE MORTGAGE LOANS BALANCE BALANCE ALABAMA 8 425,714.61 0.24 ALASKA 3 209,629.97 0.12 ARIZONA 99 6,091,799.99 3.38 ARKANSAS 5 194,633.31 0.11 CALIFORNIA 223 23,749,986.94 13.19 COLORADO 67 4,952,992.32 2.75 CONNECTICUT 11 739,594.98 0.41 DELAWARE 6 287,862.60 0.16 DISTRICT OF COLUMBIA 1 54,298.36 0.03 FLORIDA 206 12,359,940.30 6.87 GEORGIA 64 3,807,373.88 2.12 HAWAII 3 467,498.92 0.26 IDAHO 23 1,504,708.50 0.84 ILLINOIS 55 4,049,163.69 2.25 INDIANA 102 5,335,215.57 2.96 IOWA 46 2,121,674.34 1.18 KANSAS 72 4,600,458.63 2.56 KENTUCKY 28 1,209,723.52 0.67 LOUISIANA 15 567,744.60 0.32 MARYLAND 64 4,534,534.06 2.52 MASSACHUSETTS 20 1,820,331.03 1.01 MICHIGAN 429 18,679,086.40 10.38 MINNESOTA 16 1,116,730.82 0.62 MISSISSIPPI 5 251,230.75 0.14 MISSOURI 105 6,504,904.67 3.61 MONTANA 6 234,301.73 0.13 NEBRASKA 17 1,240,217.01 0.69 NEVADA 57 5,437,267.98 3.02 NEW HAMPSHIRE 2 205,414.91 0.11 NEW JERSEY 51 3,471,008.90 1.93 NEW MEXICO 19 1,021,415.32 0.57 NEW YORK 32 3,342,109.85 1.86 NORTH CAROLINA 103 6,261,913.71 3.48 OHIO 114 6,294,943.87 3.50 OKLAHOMA 28 1,364,997.30 0.76 OREGON 65 5,647,112.53 3.14 PENNSYLVANIA 193 10,492,457.21 5.83 RHODE ISLAND 6 499,203.06 0.28 SOUTH CAROLINA 57 3,100,539.51 1.72 SOUTH DAKOTA 4 81,830.45 0.05 TENNESSEE 82 5,181,579.14 2.88 TEXAS 33 1,733,779.48 0.96 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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 8 - --------------------------------------------------------------------------------------------------------------------- GROUP IA FRM LOANS GEOGRAPHIC DISTRIBUTION - --------------------------------------------------------------------------------------------------------------------- AGGREGATE % OF AGGREGATE NUMBER OF PRINCIPAL PRINCIPAL STATE MORTGAGE LOANS BALANCE BALANCE UTAH 44 3,417,252.29 1.90 VERMONT 3 166,740.64 0.09 VIRGINIA 131 7,624,609.53 4.24 WASHINGTON 71 6,040,958.68 3.36 WEST VIRGINIA 10 509,498.83 0.28 WISCONSIN 17 845,626.54 0.47 WYOMING 4 161,265.44 0.09 - --------------------------------------------------------------------------------------------------------------------- TOTAL: 2,825 180,012,876.67 100.00 - --------------------------------------------------------------------------------------------------------------------- GROUP IA FRM LOANS DISTRIBUTION OF CLTVS AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL CLTV RATIOS MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------------------------------------- 90.001 - 95.000 23 1,376,396.51 0.76 85.001 - 90.000 178 13,878,209.80 7.71 80.001 - 85.000 860 60,430,731.14 33.57 75.001 - 80.000 595 43,116,101.68 23.95 70.001 - 75.000 311 21,045,205.83 11.69 65.001 - 70.000 236 13,855,478.81 7.70 60.001 - 65.000 186 10,192,196.51 5.66 55.001 - 60.000 125 5,515,568.70 3.06 50.001 - 55.000 58 2,468,337.36 1.37 0.001 - 50.000 253 8,134,650.33 4.52 - --------------------------------------------------------------------------------------------------------------------- TOTAL: 2,825 180,012,876.67 100.00 Minimum: 11.67 Maximum: 95.00 Weighted Average: 76.72 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 10 LEHMAN BROTHERS 10 GROUP IA FRM LOANS DISTRIBUTION OF LTVS AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL LTV RATIOS MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------- 90.001 - 95.000 21 1,341,805.82 0.75 85.001 - 90.000 152 13,188,985.31 7.33 80.001 - 85.000 689 54,895,565.91 30.50 75.001 - 80.000 537 40,792,368.81 22.66 70.001 - 75.000 290 20,354,876.27 11.31 65.001 - 70.000 229 13,584,552.34 7.55 60.001 - 65.000 179 9,840,283.72 5.47 55.001 - 60.000 119 5,228,003.29 2.90 50.001 - 55.000 60 2,712,796.85 1.51 0.001 - 50.000 549 18,073,638.35 10.04 - --------------------------------------------------------------------------------------- TOTAL: 2,825 180,012,876.67 100.00 Minimum: 4.32 Maximum: 95.00 Weighted Average: 73.53 GROUP IA FRM LOANS DISTRIBUTION OF JUNIOR LIEN RATIOS (JUNIOR LIENS ONLY) AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL JUNIOR LIEN RATIOS MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------- 0.01 - 10.00 9 91,203.60 0.88 10.01 - 20.00 92 2,285,591.75 21.97 20.01 - 30.00 108 3,612,173.37 34.72 30.01 - 40.00 53 2,095,213.65 20.14 40.01 - 50.00 23 1,120,569.86 10.77 50.01 - 60.00 12 706,828.49 6.79 60.01 - 70.00 6 228,135.25 2.19 70.01 - 80.00 4 263,941.20 2.54 - --------------------------------------------------------------------------------------- TOTAL: 307 10,403,657.17 100.00 Minimum: 5.10 Maximum: 75.64 Weighted Average: 31.13 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 11 LEHMAN BROTHERS 11 GROUP IA FRM LOANS DISTRIBUTION OF CURRENT MORTGAGE RATES AGGREGATE % OF AGGREGATE RANGE OF CURRENT NUMBER OF PRINCIPAL PRINCIPAL MORTGAGE RATES MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------- 7.001 - 8.000 58 5,567,727.15 3.09 8.001 - 9.000 357 33,127,635.97 18.40 9.001 - 10.000 677 53,293,595.80 29.61 10.001 - 11.000 559 37,267,746.88 20.70 11.001 - 12.000 360 19,815,077.45 11.01 12.001 - 13.000 519 20,157,109.62 11.20 13.001 - 14.000 188 6,631,528.31 3.68 14.001 - 15.000 76 2,934,408.42 1.63 15.001 - 16.000 25 1,024,792.87 0.57 16.001 - 17.000 4 121,631.37 0.07 17.001 - 18.000 2 71,622.83 0.04 - --------------------------------------------------------------------------------------- TOTAL: 2,825 180,012,876.67 100.00 Minimum: 7.4000 Maximum: 17.4500 Weighted Average: 10.4055 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 12 LEHMAN BROTHERS 12 GROUP IA FRM LOANS REMAINING TERM TO MATURITY DISTRIBUTION AGGREGATE % OF AGGREGATE REMAINING TERM NUMBER OF PRINCIPAL PRINCIPAL TO MATURITY MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------- 25 - 36 2 78,789.88 0.04 37 - 48 1 16,132.37 0.01 49 - 60 20 330,217.46 0.18 73 - 84 12 343,545.51 0.19 85 - 96 7 257,398.81 0.14 97 - 108 1 74,952.84 0.04 109 - 120 130 4,701,985.39 2.61 133 - 144 11 506,839.16 0.28 145 - 156 2 148,642.34 0.08 169 - 180 1,175 64,175,766.75 35.65 193 - 204 5 470,670.90 0.26 205 - 216 3 221,563.00 0.12 217 - 228 10 588,613.79 0.33 229 - 240 512 33,079,366.76 18.38 289 - 300 9 574,803.36 0.32 301 - 312 1 104,787.27 0.06 349 - 360 924 74,338,801.08 41.30 - --------------------------------------------------------------------------------------- TOTAL: 2,825 180,012,876.67 100.00 Minimum: 32 Maximum: 360 Weighted Average: 262.0 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 13 LEHMAN BROTHERS 13 GROUP IA FRM LOANS PRINCIPAL BALANCE DISTRIBUTION AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL PRINCIPAL BALANCES MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------- 0.01 - 5,000.00 2 7,394.60 0.00 5,000.01 - 10,000.00 29 281,150.48 0.16 10,000.01 - 15,000.00 84 1,103,063.83 0.61 15,000.01 - 20,000.00 157 2,833,432.16 1.57 20,000.01 - 25,000.00 172 3,955,244.48 2.20 25,000.01 - 30,000.00 205 5,674,066.31 3.15 30,000.01 - 35,000.00 189 6,180,535.20 3.43 35,000.01 - 40,000.00 195 7,414,790.18 4.12 40,000.01 - 45,000.00 188 8,024,763.72 4.46 45,000.01 - 50,000.00 164 7,793,292.54 4.33 50,000.01 - 55,000.00 173 9,097,826.54 5.05 55,000.01 - 60,000.00 180 10,397,671.59 5.78 60,000.01 - 65,000.00 116 7,282,451.63 4.05 65,000.01 - 70,000.00 105 7,074,731.17 3.93 70,000.01 - 75,000.00 93 6,739,751.87 3.74 75,000.01 - 80,000.00 84 6,535,575.03 3.63 80,000.01 - 85,000.00 74 6,129,482.60 3.41 85,000.01 - 90,000.00 63 5,517,953.99 3.07 90,000.01 - 95,000.00 55 5,082,329.80 2.82 95,000.01 - 100,000.00 65 6,350,871.89 3.53 100,000.01 - 150,000.00 296 35,319,782.29 19.62 150,000.01 - 200,000.00 69 12,000,287.29 6.67 200,000.01 - 250,000.00 32 7,204,076.30 4.00 250,000.01 - 300,000.00 16 4,265,295.91 2.37 300,000.01 - 350,000.00 9 2,962,825.94 1.65 350,000.01 - 400,000.00 3 1,103,345.30 0.61 400,000.01 - 450,000.00 2 818,407.34 0.45 450,000.01 - 500,000.00 3 1,420,678.81 0.79 500,000.01 - 550,000.00 1 527,324.31 0.29 900,000.01 - 950,000.00 1 914,473.57 0.51 - --------------------------------------------------------------------------------------- TOTAL: 2,825 180,012,876.67 100.00 Minimum: 2,451 Maximum: 914,474 Average: 63,721 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 14 LEHMAN BROTHERS 14 GROUP IA FRM LOANS DISTRIBUTION OF SEASONING AGGREGATE % OF AGGREGATE MONTHS ELAPSED NUMBER OF PRINCIPAL PRINCIPAL SINCE ORIGINATION MORTGAGE LOANS BALANCE BALANCE - -------------------------------------------------------------------------------------- less than equal to 0 326 18,315,911.76 10.17 1- 6 2,463 159,758,430.64 88.75 7 - 12 34 1,845,739.14 1.03 25 - 36 2 92,795.13 0.05 - -------------------------------------------------------------------------------------- TOTAL: 2,825 180,012,876.67 100.00 Minimum: 0 Maximum: 31 Weighted Average: 1.8 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 15 LEHMAN BROTHERS 15 GROUP IIA ARM LOANS - COLLATERAL SUMMARY - -------------------------------------------------------------------------------- GROUP IIA ARM LOANS - -------------------------------------------------------------------------------- NUMBER OF LOANS 2,141 TOTAL OUTSTANDING PRINCIPAL BALANCE $198,389,365 BALLOON (% OF TOTAL) 0.00% LEVEL PAY (% OF TOTAL) 100.00% AVERAGE PRINCIPAL BALANCE $92,662 $9,996 - $674,668 WEIGHTED AVERAGE LOAN RATE 10.45% 7.24% - 16.49% WEIGHTED AVERAGE MARGIN 6.47% 2.25% - 11.50% WEIGHTED AVERAGE ORIGINAL TERM (MOS.) 359 120 - 360 WEIGHTED AVERAGE REMAINING TERM (MOS.) 357 118 - 360 WEIGHTED AVERAGE MAXIMUM RATE 17.11% 13.49% - 22.99% WEIGHTED AVERAGE PERIODIC CAP - SUBSEQUENT 1.17% 1.00% - 2.00% WEIGHTED AVERAGE FLOOR 9.77% 3.90% - 16.49% INDEX 6 month LIBOR 99.91% 1 Yr CMT 0.09% WEIGHTED AVERAGE CLTV 79.92% 13.64% - 94.34% WEIGHTED AVERAGE CLTV > 80.00% 50.22% LIEN POSITION (FIRST/SECOND) 100.00% / 0.00% PROPERTY TYPE SINGLE FAMILY/PUD 88.84% CONDO/TOWNHOUSE/ROWHOUSE 3.60% TWO TO FOUR FAMILY 4.28% PREFABRICATED SINGLE FAMILY 3.03% OTHER 0.24% OCCUPANCY STATUS OWNER OCCUPIED / INVESTOR OWNER 94.25% / 5.75% GEOGRAPHIC DISTRIBUTION other states account individually for less than CA 16.11% OR 4.84% 4% of Group II pool balance MI 14.74% NV 4.39% FL 5.21% UT 4.36% WA 5.01% OH 4.06% ORIGINATION YEAR 1998 91.19% 1997 8.81% CREDIT CLASS A+/A/A- 50.97% C/C- 17.99% B/B- 25.86% D 5.18% PREPAYMENT PENALTY Yes 81.58% No 18.42% - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 16 LEHMAN BROTHERS 16 GROUP IIA ARM LOANS DISTRIBUTION BY LOAN TYPE % OF AGGREGATE WEIGHTED WEIGHTED INITIAL AVERAGE AVERAGE PRINCIPAL AVERAGE AVERAGE PERIODIC PERIODIC MAXIMUM LOAN TYPE BALANCE COUPON MARGIN CAP CAP RATE - ----------------------------------------------------------------------------------------------------------- 6 mo LIBOR 4.63 10.426 6.913 1.388 1.388 17.065 1 Yr Fix,6 mo LIBOR 0.08 10.211 4.461 1.000 1.000 17.211 2 Yr Fix,6 mo LIBOR 67.43 10.561 6.764 2.954 1.187 17.114 3 Yr Fix,1 Yr CMT 0.09 8.453 4.824 3.000 1.703 15.453 3 Yr Fix,6 mo LIBOR 17.79 10.225 6.152 2.962 1.093 17.140 5 Yr Fix,6 mo LIBOR 9.97 10.129 4.902 1.424 1.058 17.072 - ----------------------------------------------------------------------------------------------------------- TOTAL: 100.00 10.450 6.473 2.729 1.167 17.111 - -------------------------------------------------------------------------------- GROUP IIA ARM LOANS GEOGRAPHIC DISTRIBUTION - -------------------------------------------------------------------------------- AGGREGATE % OF AGGREGATE NUMBER OF PRINCIPAL PRINCIPAL STATE MORTGAGE LOANS BALANCE BALANCE -------------- ------- ------- ALABAMA 1 111,089.38 0.06 ALASKA 1 151,200.00 0.08 ARIZONA 47 4,416,203.82 2.23 ARKANSAS 1 69,693.71 0.04 CALIFORNIA 205 31,958,930.73 16.11 COLORADO 69 7,037,767.03 3.55 CONNECTICUT 21 2,383,728.83 1.20 DELAWARE 4 385,909.19 0.19 FLORIDA 122 10,326,600.95 5.21 GEORGIA 28 2,808,848.14 1.42 IDAHO 20 2,200,529.48 1.11 ILLINOIS 59 5,298,212.74 2.67 INDIANA 78 4,202,608.14 2.12 IOWA 12 882,317.13 0.44 KANSAS 11 890,025.12 0.45 KENTUCKY 21 1,664,780.28 0.84 LOUISIANA 4 266,642.07 0.13 MAINE 3 236,984.98 0.12 MARYLAND 34 3,421,016.32 1.72 MASSACHUSETTS 22 2,190,399.99 1.10 MICHIGAN 448 29,237,989.11 14.74 MINNESOTA 26 2,358,085.62 1.19 MISSISSIPPI 3 287,733.66 0.15 MISSOURI 21 2,032,589.08 1.02 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 17 LEHMAN BROTHERS 17 - -------------------------------------------------------------------------------- GROUP IIA ARM LOANS DISTRIBUTION BY LOAN TYPE - -------------------------------------------------------------------------------- AGGREGATE % OF AGGREGATE NUMBER OF PRINCIPAL PRINCIPAL STATE MORTGAGE LOANS BALANCE BALANCE -------------- ------- ------- MONTANA 5 478,400.59 0.24 NEBRASKA 3 157,806.99 0.08 NEVADA 81 8,716,343.79 4.39 NEW HAMPSHIRE 6 563,728.96 0.28 NEW JERSEY 55 5,383,179.60 2.71 NEW MEXICO 9 967,288.77 0.49 NEW YORK 44 4,690,635.77 2.36 NORTH CAROLINA 36 3,063,646.22 1.54 OHIO 105 8,058,768.55 4.06 OKLAHOMA 15 1,209,945.31 0.61 OREGON 96 9,602,802.54 4.84 PENNSYLVANIA 65 5,407,334.11 2.73 RHODE ISLAND 6 551,364.93 0.28 SOUTH CAROLINA 9 844,780.98 0.43 SOUTH DAKOTA 5 457,092.90 0.23 TENNESSEE 20 1,593,615.77 0.80 TEXAS 79 7,045,281.02 3.55 UTAH 78 8,653,909.99 4.36 VERMONT 2 738,014.65 0.37 VIRGINIA 18 1,437,885.69 0.72 WASHINGTON 86 9,947,335.57 5.01 WEST VIRGINIA 8 594,914.50 0.30 WISCONSIN 48 3,268,602.38 1.65 WYOMING 1 136,800.00 0.07 - -------------------------------------------------------------------------------- TOTAL: 2,141 198,389,365.08 100.00 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 18 LEHMAN BROTHERS 18 GROUP IIA ARM LOANS DISTRIBUTION OF CLTVS AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL CLTV RATIOS MORTGAGE LOANS BALANCE BALANCE - ------------------------------------------------------------------------------------ 90.001 - 95.000 10 1,299,275.05 0.65 85.001 - 90.000 367 44,447,293.21 22.40 80.001 - 85.000 571 53,885,198.27 27.16 75.001 - 80.000 517 46,810,567.60 23.60 70.001 - 75.000 249 21,435,747.48 10.80 65.001 - 70.000 171 13,903,315.17 7.01 60.001 - 65.000 104 7,103,768.20 3.58 55.001 - 60.000 54 3,179,794.39 1.60 50.001 - 55.000 31 2,380,267.22 1.20 0.001 - 50.000 67 3,944,138.49 1.99 - ------------------------------------------------------------------------------------ TOTAL: 2,141 198,389,365.08 100.00 Minimum: 13.64 Maximum: 94.34 Weighted Average: 79.92 GROUP IIA ARM LOANS DISTRIBUTION OF CURRENT MORTGAGES AGGREGATE % OF AGGREGATE RANGE OF CURRENT NUMBER OF PRINCIPAL PRINCIPAL MORTGAGE RATES MORTGAGE LOANS BALANCE BALANCE - ------------------------------------------------------------------------------------ 7.001 - 8.000 36 4,826,086.77 2.43 8.001 - 9.000 170 19,845,885.62 10.00 9.001 - 10.000 485 53,808,758.79 27.12 10.001 - 11.000 717 66,139,831.67 33.34 11.001 - 12.000 476 35,372,118.48 17.83 12.001 - 13.000 165 12,861,871.09 6.48 13.001 - 14.000 52 3,104,288.76 1.56 14.001 - 15.000 27 1,747,614.32 0.88 15.001 - 16.000 10 547,077.95 0.28 16.001 - 17.000 3 135,831.63 0.07 - ------------------------------------------------------------------------------------ TOTAL: 2,141 198,389,365.08 100.00 Minimum: 7.2400 Maximum: 16.4900 Weighted Average: 10.4498 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 19 LEHMAN BROTHERS 19 GROUP IIA ARM LOANS REMAINING TERM TO MATURITY DISTRIBUTION AGGREGATE % OF AGGREGATE REMAINING TERM NUMBER OF PRINCIPAL PRINCIPAL TO MATURITY MORTGAGE LOANS BALANCE BALANCE - ------------------------------------------------------------------------------------ 109 - 120 1 29,284.22 0.01 169 - 180 15 993,933.22 0.50 217 - 228 2 118,931.53 0.06 229 - 240 1 135,411.46 0.07 289 - 300 2 100,019.52 0.05 349 - 360 2,120 197,011,785.13 99.31 - ------------------------------------------------------------------------------------ TOTAL: 2,141 198,389,365.08 100.00 Minimum: 118 Maximum: 360 Weighted Average: 357.2 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 20 LEHMAN BROTHERS 20 GROUP IIA ARM LOANS PRINCIPAL BALANCE DISTRIBUTION AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL PRINCIPAL BALANCES MORTGAGE LOANS BALANCE BALANCE - ------------------------------------------------------------------------------------ 5,000.01 -10,000.00 1 9,996.25 0.01 10,000.01 -15,000.00 2 24,937.87 0.01 15,000.01 -20,000.00 19 343,831.54 0.17 20,000.01 -25,000.00 37 867,529.58 0.44 25,000.01 -30,000.00 70 1,978,574.70 1.00 30,000.01 -35,000.00 55 1,812,003.96 0.91 35,000.01 -40,000.00 89 3,353,804.22 1.69 40,000.01 -45,000.00 92 3,950,316.69 1.99 45,000.01 -50,000.00 126 6,030,534.88 3.04 50,000.01 -55,000.00 89 4,706,327.92 2.37 55,000.01 -60,000.00 131 7,586,011.98 3.82 60,000.01 -65,000.00 102 6,399,992.70 3.23 65,000.01 -70,000.00 104 7,033,666.18 3.55 70,000.01 -75,000.00 99 7,204,956.07 3.63 75,000.01 -80,000.00 83 6,441,927.08 3.25 80,000.01 -85,000.00 94 7,741,582.53 3.90 85,000.01 -90,000.00 82 7,187,845.39 3.62 90,000.01 -95,000.00 80 7,419,558.51 3.74 95,000.01 -100,000.00 70 6,837,707.87 3.45 100,000.01 -150,000.00 442 53,352,173.76 26.89 150,000.01 -200,000.00 153 26,142,369.66 13.18 200,000.01 -250,000.00 63 13,911,710.27 7.01 250,000.01 -300,000.00 37 10,157,445.99 5.12 300,000.01 -350,000.00 11 3,441,485.49 1.73 350,000.01 -400,000.00 4 1,505,812.39 0.76 400,000.01 -450,000.00 4 1,762,072.36 0.89 500,000.01 -550,000.00 1 510,521.26 0.26 650,000.01 -700,000.00 1 674,667.98 0.34 - ------------------------------------------------------------------------------------ TOTAL: 2,141 198,389,365.08 100.00 Minimum: 9,996 Maximum: 674,668 Average: 92,662 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 21 LEHMAN BROTHERS 21 GROUP IIA ARM LOANS SEASONING DISTRIBUTION AGGREGATE % OF AGGREGATE MONTHS ELAPSED NUMBER OF PRINCIPAL PRINCIPAL SINCE ORIGINATION MORTGAGE LOANS BALANCE BALANCE - ------------------------------------------------------------------------------------ less than equal to 0 309 26,829,400.28 13.52 1 -6 1,819 170,812,746.32 86.10 7 -12 13 747,218.48 0.38 - --------------------------------------------------------------------------------------------- TOTAL: 2,141 198,389,365.08 100.00 Minimum: 0 Maximum: 9 Weighted Average: 1.6 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 22 LEHMAN BROTHERS 22 GROUP IIA ARM LOANS DISTRIBUTION OF MAXIMUM MORTGAGE RATES AGGREGATE % OF AGGREGATE RANGE OF MAXIMUM NUMBER OF PRINCIPAL PRINCIPAL MORTGAGE RATES MORTGAGE LOANS BALANCE BALANCE - ------------------------------------------------------------------------------------ 13.000 - 13.499 1 139,873.83 0.07 13.500 - 13.999 3 297,770.35 0.15 14.000 - 14.499 13 1,515,471.58 0.76 14.500 - 14.999 36 4,899,903.64 2.47 15.000 - 15.499 55 6,669,134.44 3.36 15.500 - 15.999 179 20,987,282.32 10.58 16.000 - 16.499 315 28,843,560.32 14.54 16.500 - 16.999 346 35,710,924.39 18.00 17.000 - 17.499 366 33,457,466.84 16.86 17.500 - 17.999 372 31,113,575.68 15.68 18.000 - 18.499 143 11,678,190.67 5.89 18.500 - 18.999 109 9,233,829.70 4.65 19.000 - 19.499 74 5,215,185.17 2.63 19.500 - 19.999 61 4,571,457.47 2.30 20.000 - 20.499 20 1,072,912.80 0.54 20.500 - 20.999 14 935,095.12 0.47 21.000 - 21.499 18 1,274,637.09 0.64 21.500 - 21.999 10 457,184.66 0.23 22.000 - 22.499 2 91,688.75 0.05 22.500 - 22.999 4 224,220.26 0.11 - ------------------------------------------------------------------------------------ TOTAL: 2,141 198,389,365.08 100.00 Minimum: 13.4900 Maximum: 22.9900 Weighted Average: 17.1111 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 23 LEHMAN BROTHERS 23 GROUP IIA ARM LOANS DISTRIBUTION OF MINIMUM MORTGAGE RATES AGGREGATE % OF AGGREGATE RANGE OF MINIMUM NUMBER OF PRINCIPAL PRINCIPAL MORTGAGE RATES MORTGAGE LOANS BALANCE BALANCE - ------------------------------------------------------------------------------------ 3.500 - 3.999 2 73,976.00 0.04 4.000 - 4.499 10 774,037.94 0.39 4.500 - 4.999 17 1,789,884.52 0.90 5.000 - 5.499 41 3,725,334.06 1.88 5.500 - 5.999 83 8,294,351.37 4.18 6.000 - 6.499 63 6,308,582.42 3.18 6.500 - 6.999 34 2,746,314.40 1.38 7.000 - 7.499 7 687,646.82 0.35 7.500 - 7.999 37 4,214,514.42 2.12 8.000 - 8.499 25 2,854,267.11 1.44 8.500 - 8.999 253 26,933,280.11 13.58 9.000 - 9.499 109 13,007,359.82 6.56 9.500 - 9.999 229 24,768,825.49 12.48 10.000 - 10.499 302 27,803,573.33 14.01 10.500 - 10.999 276 25,980,381.08 13.10 11.000 - 11.499 218 16,285,906.18 8.21 11.500 - 11.999 226 16,852,492.39 8.49 12.000 - 12.499 65 5,433,934.04 2.74 12.500 - 12.999 66 5,014,144.04 2.53 13.000 - 13.499 28 1,614,023.78 0.81 13.500 - 13.999 14 921,708.58 0.46 14.000 - 14.499 10 520,277.49 0.26 14.500 - 14.999 13 1,101,640.11 0.56 15.000 - 15.499 7 367,000.57 0.18 15.500 - 15.999 3 180,077.38 0.09 16.000 - 16.499 3 135,831.63 0.07 - ------------------------------------------------------------------------------------ TOTAL: 2,141 198,389,365.08 100.00 Minimum: 3.9000 Maximum: 16.4900 Weighted Average: 9.7749 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 24 LEHMAN BROTHERS 24 GROUP IIA ARM LOANS DISTRIBUTION OF MARGINS AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL MARGINS MORTGAGE LOANS BALANCE BALANCE - ------------------------------------------------------------------------------------ 2.001 - 3.000 10 1,607,811.86 0.81 3.001 - 4.000 67 6,939,450.52 3.50 4.001 - 5.000 162 16,988,877.47 8.56 5.001 - 6.000 450 45,365,237.23 22.87 6.001 - 7.000 724 66,750,813.76 33.65 7.001 - 8.000 487 40,205,404.84 20.27 8.001 - 9.000 168 15,037,444.54 7.58 9.001 - 10.000 62 4,655,326.26 2.35 10.001 - 11.000 10 737,091.67 0.37 11.001 - 12.000 1 101,906.93 0.05 - ---------------------------------------------------------------------------------------- TOTAL: 2,141 198,389,365.08 100.00 Minimum: 2.2500 Maximum: 11.5000 Weighted Average: 6.4727 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 25 LEHMAN BROTHERS 25 GROUP IIA ARM LOANS DISTRIBUTION BY NEXT INTEREST ADJUSTMENT DATE AGGREGATE % OF AGGREGATE NEXT INTEREST NUMBER OF PRINCIPAL PRINCIPAL ADJUSTMENT DATE MORTGAGE LOANS BALANCE BALANCE - ------------------------------------------------------------------------------------ 1998-06 5 406,528.31 0.20 1998-07 8 1,082,742.45 0.55 1998-08 17 1,796,222.10 0.91 1998-09 8 1,003,349.43 0.51 1998-10 47 4,440,672.11 2.24 1998-11 3 463,820.00 0.23 1999-03 1 81,600.00 0.04 1999-04 1 85,806.55 0.04 1999-08 1 75,644.51 0.04 1999-10 6 251,361.68 0.13 1999-11 13 1,203,729.30 0.61 1999-12 13 1,043,495.78 0.53 2000-01 112 11,582,011.61 5.84 2000-02 152 15,096,609.21 7.61 2000-03 248 22,711,011.64 11.45 2000-04 687 61,274,077.61 30.89 2000-05 240 20,424,216.98 10.30 2000-06 2 116,000.00 0.06 2000-10 3 255,944.38 0.13 2000-11 5 431,512.46 0.22 2000-12 4 479,294.00 0.24 2001-01 12 938,921.66 0.47 2001-02 53 5,547,401.46 2.80 2001-03 192 16,656,994.96 8.40 2001-04 95 9,552,544.85 4.82 2001-05 20 1,600,075.00 0.81 2002-08 2 115,493.81 0.06 2002-09 1 48,774.10 0.02 2002-11 2 236,543.90 0.12 2003-01 1 59,917.55 0.03 2003-02 4 333,496.18 0.17 2003-03 50 4,849,298.53 2.44 2003-04 89 9,918,964.67 5.00 2003-05 44 4,225,288.30 2.13 - ------------------------------------------------------------------------------------ TOTAL: 2,141 198,389,365.08 100.00 Minimum: 06/01/98 Maximum: 05/07/03 Weighted Average: 08/09/00 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 26 LEHMAN BROTHERS 26 PROJECTED PERFORMANCE UNDER VARYING PREPAYMENT ASSUMPTIONS GROUP IB AND IIB FRM AND ARM SUB-GROUPS - TO CALL PPC % 0 50 100 120 175 200 250 CPR % 0 10 20 25 30 40 50 CLASS A-9 Average Life 6.15 1.51 0.96 0.85 0.68 0.63 0.55 Mod Duration 4.67 1.38 0.90 0.80 0.64 0.60 0.53 First Prin 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 Last Prin 3/25/10 5/25/01 2/25/00 12/25/99 7/25/99 6/25/99 5/25/99 Payment Window 141 35 20 18 13 12 11 CLASS A-10 Average Life 13.99 4.14 2.33 2.00 1.47 1.31 1.11 Mod Duration 9.09 3.54 2.10 1.83 1.36 1.23 1.04 First Prin 3/25/10 5/25/01 2/25/00 12/25/99 7/25/99 6/25/99 5/25/99 Last Prin 5/25/13 12/25/03 6/25/01 1/25/01 4/25/00 1/25/00 10/25/99 Payment Window 39 32 17 14 10 8 6 CLASS A-11 Average Life 15.45 6.78 3.57 3.00 2.11 1.87 1.51 Mod Duration 9.64 5.37 3.11 2.66 1.92 1.71 1.41 First Prin 5/25/13 12/25/03 6/25/01 1/25/01 4/25/00 1/25/00 10/25/99 Last Prin 7/25/15 11/25/06 8/25/02 12/25/01 11/25/00 7/25/00 2/25/00 Payment Window 27 36 15 12 8 7 5 CLASS A-12 Average Life 18.44 9.81 4.80 3.99 2.70 2.35 1.88 Mod Duration 10.55 7.09 4.02 3.43 2.41 2.12 1.72 First Prin 7/25/15 11/25/06 8/25/02 12/25/01 11/25/00 7/25/00 2/25/00 Last Prin 2/25/18 9/25/09 12/25/03 12/25/02 6/25/01 1/25/01 7/25/00 Payment Window 32 35 17 13 8 7 6 CLASS A-13 Average Life 22.69 12.84 6.55 5.26 3.43 2.94 2.28 Mod Duration 11.57 8.48 5.18 4.33 2.99 2.60 2.06 First Prin 2/25/18 9/25/09 12/25/03 12/25/02 6/25/01 1/25/01 7/25/00 Last Prin 9/25/23 1/25/13 9/25/06 8/25/04 5/25/02 10/25/01 1/25/01 Payment Window 68 41 34 21 12 10 7 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 27 LEHMAN BROTHERS 27 PROJECTED PERFORMANCE UNDER VARYING PREPAYMENT ASSUMPTIONS GROUP IB AND IIB FRM AND ARM SUB-GROUPS - TO CALL PPC % 0 50 100 120 175 200 250 CPR % 0 10 20 25 30 40 50 CLASS A-14 Average Life 27.38 15.66 9.55 7.65 5.00 4.12 3.05 Mod Duration 12.12 9.38 6.83 5.79 4.11 3.49 2.68 First Prin 9/25/23 1/25/13 9/25/06 8/25/04 5/25/02 10/25/01 1/25/01 Last Prin 9/25/26 9/25/14 3/25/08 6/25/06 4/25/04 2/25/03 12/25/01 Payment Window 37 21 19 23 24 17 12 CLASS A-15 Average Life 11.28 7.99 6.69 6.27 5.14 4.39 3.48 Mod Duration 7.69 5.99 5.24 4.98 4.25 3.73 3.03 First Prin 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 Last Prin 9/25/26 9/25/14 3/25/08 6/25/06 4/25/04 2/25/03 12/25/01 Payment Window 303 159 81 60 34 20 6 CLASS A-18 Average Life 23.66 8.34 4.11 3.13 2.33 1.50 0.88 Mod Duration 12.20 5.92 3.34 2.64 2.04 1.35 0.83 First Prin 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 Last Prin 9/25/26 9/25/14 3/25/08 6/25/06 4/25/04 2/25/03 12/25/01 Payment Window 339 195 117 96 70 56 42 CLASS A-19 Average Life 12.69 3.34 2.67 2.53 2.46 2.41 2.50 Mod Duration 8.28 2.91 2.38 2.27 2.21 2.18 2.25 First Prin 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 Last Prin 1/25/17 2/25/04 8/25/03 7/25/03 7/25/03 2/25/03 12/25/01 Payment Window 204 49 43 42 42 37 23 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 28 LEHMAN BROTHERS 28 PROJECTED PERFORMANCE UNDER VARYING PREPAYMENT ASSUMPTIONS GROUP IB AND IIB FRM AND ARM SUB-GROUPS - TO MATURITY PPC % 0 50 100 120 175 200 250 CPR % 0 10 20 25 30 40 50 CLASS A-9 Average Life 6.15 1.51 0.96 0.85 0.68 0.63 0.55 Mod Duration 4.67 1.38 0.90 0.80 0.64 0.60 0.53 First Prin 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 Last Prin 3/25/10 5/25/01 2/25/00 12/25/99 7/25/99 6/25/99 5/25/99 Payment Window 141 35 20 18 13 12 11 CLASS A-10 Average Life 13.99 4.14 2.33 2.00 1.47 1.31 1.11 Mod Duration 9.09 3.54 2.10 1.83 1.36 1.23 1.04 First Prin 3/25/10 5/25/01 2/25/00 12/25/99 7/25/99 6/25/99 5/25/99 Last Prin 5/25/13 12/25/03 6/25/01 1/25/01 4/25/00 1/25/00 10/25/99 Payment Window 39 32 17 14 10 8 6 CLASS A-11 Average Life 15.45 6.78 3.57 3.00 2.11 1.87 1.51 Mod Duration 9.64 5.37 3.11 2.66 1.92 1.71 1.41 First Prin 5/25/13 12/25/03 6/25/01 1/25/01 4/25/00 1/25/00 10/25/99 Last Prin 7/25/15 11/25/06 8/25/02 12/25/01 11/25/00 7/25/00 2/25/00 Payment Window 27 36 15 12 8 7 5 CLASS A-12 Average Life 18.44 9.81 4.80 3.99 2.70 2.35 1.88 Mod Duration 10.55 7.09 4.02 3.43 2.41 2.12 1.72 First Prin 7/25/15 11/25/06 8/25/02 12/25/01 11/25/00 7/25/00 2/25/00 Last Prin 2/25/18 9/25/09 12/25/03 12/25/02 6/25/01 1/25/01 7/25/00 Payment Window 32 35 17 13 8 7 6 CLASS A-13 Average Life 22.69 12.84 6.55 5.26 3.43 2.94 2.28 Mod Duration 11.57 8.48 5.18 4.33 2.99 2.60 2.06 First Prin 2/25/18 9/25/09 12/25/03 12/25/02 6/25/01 1/25/01 7/25/00 Last Prin 9/25/23 1/25/13 9/25/06 8/25/04 5/25/02 10/25/01 1/25/01 Payment Window 68 41 34 21 12 10 7 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 29 LEHMAN BROTHERS 29 PROJECTED PERFORMANCE UNDER VARYING PREPAYMENT ASSUMPTIONS GROUP IB AND IIB FRM AND ARM SUB-GROUPS - TO MATURITY PPC % 0 50 100 120 175 200 250 CPR % 0 10 20 25 30 40 50 CLASS A-14 Average Life 27.69 17.43 11.59 9.63 5.64 4.43 3.10 Mod Duration 12.17 9.87 7.73 6.77 4.48 3.69 2.71 First Prin 9/25/23 1/25/13 9/25/06 8/25/04 5/25/02 10/25/01 1/25/01 Last Prin 4/25/28 6/25/25 9/25/16 4/25/14 4/25/10 8/25/08 6/25/02 Payment Window 56 150 121 117 96 83 18 CLASS A-15 Average Life 11.28 7.99 6.74 6.42 5.81 5.59 4.71 Mod Duration 7.69 5.99 5.27 5.07 4.68 4.53 3.93 First Prin 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 7/25/01 Last Prin 2/25/28 10/25/24 5/25/13 5/25/13 2/25/10 6/25/08 4/25/06 Payment Window 320 280 143 143 104 84 58 CLASS A-18 Average Life 23.79 9.26 4.57 3.46 2.69 1.68 1.00 Mod Duration 12.23 6.20 3.56 2.82 2.26 1.48 0.92 First Prin 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 7/25/98 Last Prin 3/25/28 2/25/27 2/25/20 1/25/16 11/25/12 9/25/08 1/25/06 Payment Window 357 344 260 211 173 123 91 CLASS A-19 Average Life 12.69 3.34 2.67 2.53 2.46 2.41 2.56 Mod Duration 8.28 2.91 2.38 2.27 2.21 2.18 2.29 First Prin 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 2/25/00 Last Prin 1/25/17 2/25/04 8/25/03 7/25/03 7/25/03 7/25/03 7/25/03 Payment Window 204 49 43 42 42 42 42 - -------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 30 LEHMAN BROTHERS 30 GROUP IB FRM LOANS - COLLATERAL SUMMARY - --------------------------------------- GROUP IB FRM LOANS - --------------------------------------------------------------------------------------------------------------------- NUMBER OF LOANS 3,409 TOTAL OUTSTANDING PRINCIPAL BALANCE $226,270,470 BALLOON (% OF TOTAL) 19.70% LEVEL PAY (% OF TOTAL) 80.30% AVERAGE PRINCIPAL BALANCE $66,374 $2,862 - $599,003 WEIGHTED AVERAGE LOAN RATE 9.73% 6.50% - 16.45% WEIGHTED AVERAGE ORIGINAL TERM (MOS.) 248 60 - 360 WEIGHTED AVERAGE REMAINING TERM (MOS.) 247 38 - 360 WEIGHTED AVERAGE CLTV 74.82% 5.36 % - 90.00% WEIGHTED AVERAGE CLTV Greater Than 80.00% 36.47% WEIGHTED AVERAGE SECOND MORTGAGE RATIO 0.00% (no second liens) LIEN POSITION (FIRST/SECOND) 100% / 0.00% PROPERTY TYPE SINGLE FAMILY/PUD 89.97% CONDO/TOWNHOUSE/ROWHOUSE 4.12% TWO TO FOUR FAMILY 2.74% PREFABRICATED SINGLE FAMILY 3.16% OTHER 0.00% OCCUPANCY STATUS OWNER OCCUPIED 98.14% INVESTOR OWNER 1.86% GEOGRAPHIC DISTRIBUTION other states account individually for less than MI 12.52% 5% of Group I pool balance PA 7.01% OH 5.66% MD 5.24% ORIGINATION YEAR 1998 96.98% 1997 2.99% 1996 0.03% CREDIT CLASS A+/A/A- 76.17% C/C- 8.69% B/B- 13.61% D 1.53% PREPAYMENT PENALTY Yes 79.28% No 20.72% - --------------------------------------------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 31 LEHMAN BROTHERS 31 GROUP IB FRM LOANS GEOGRAPHIC DISTRIBUTION % OF AGGREGATE NUMBER OF AGGREGATE PRINCIPAL PRINCIPAL STATE MORTGAGE LOANS BALANCE BALANCE -------------- ------------------- -------------- ALABAMA 34 1,775,544.35 0.78 ARIZONA 39 2,800,318.17 1.24 ARKANSAS 56 2,386,455.85 1.05 CALIFORNIA 87 11,300,044.43 4.99 COLORADO 59 5,504,887.69 2.43 CONNECTICUT 28 2,399,984.32 1.06 DELAWARE 29 2,201,869.54 0.97 DISTRICT OF COLUMBIA 14 1,155,975.25 0.51 FLORIDA 90 5,666,719.16 2.50 GEORGIA 102 6,877,965.72 3.04 HAWAII 4 904,390.10 0.40 IDAHO 7 407,203.89 0.18 ILLINOIS 146 10,296,846.58 4.55 INDIANA 93 4,708,513.08 2.08 IOWA 41 1,916,958.10 0.85 KANSAS 49 2,518,520.23 1.11 KENTUCKY 46 2,258,032.41 1.00 LOUISIANA 48 2,454,669.47 1.08 MAINE 16 797,290.44 0.35 MARYLAND 138 11,851,474.97 5.24 MASSACHUSETTS 33 4,173,711.98 1.84 MICHIGAN 503 28,326,626.30 12.52 MINNESOTA 66 4,796,269.71 2.12 MISSISSIPPI 36 1,997,491.12 0.88 MISSOURI 116 5,850,264.76 2.59 MONTANA 10 464,504.36 0.21 NEBRASKA 28 1,307,630.36 0.58 NEVADA 10 672,441.88 0.30 NEW HAMPSHIRE 6 360,851.53 0.16 NEW JERSEY 99 10,120,173.99 4.47 NEW MEXICO 30 1,937,962.40 0.86 NEW YORK 128 10,020,778.15 4.43 NORTH CAROLINA 104 6,878,233.43 3.04 NORTH DAKOTA 7 226,818.20 0.10 OHIO 199 12,812,347.49 5.66 OKLAHOMA 41 2,008,538.54 0.89 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 32 LEHMAN BROTHERS 32 GROUP IB FRM LOANS GEOGRAPHIC DISTRIBUTION % OF AGGREGATE NUMBER OF AGGREGATE PRINCIPAL PRINCIPAL STATE MORTGAGE LOANS BALANCE BALANCE -------------- ------------------- -------------- OREGON 36 3,236,386.14 1.43 PENNSYLVANIA 267 15,850,273.25 7.01 RHODE ISLAND 9 720,055.29 0.32 SOUTH CAROLINA 31 1,608,242.85 0.71 SOUTH DAKOTA 11 550,901.37 0.24 TENNESSEE 83 4,930,560.94 2.18 TEXAS 135 6,838,595.09 3.02 UTAH 21 2,157,907.03 0.95 VERMONT 18 1,225,162.72 0.54 VIRGINIA 85 5,442,403.51 2.41 WASHINGTON 42 5,307,775.78 2.35 WEST VIRGINIA 87 4,071,069.69 1.80 WISCONSIN 36 1,917,710.91 0.85 WYOMING 6 275,117.97 0.12 - ---------------------------------------------------------------------------------------------- TOTAL: 3,409 226,270,470.49 100.00 - ---------------------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 33 LEHMAN BROTHERS 33 GROUP IB FRM LOANS DISTRIBUTION OF CLTVS AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL CLTV RATIOS MORTGAGE LOANS BALANCE BALANCE - ----------------------------------------------------------------------------------------------------------- 85.001 - 90.000 26 2,388,486.31 1.06 80.001 - 85.000 1,036 80,137,122.98 35.42 75.001 - 80.000 738 54,697,950.47 24.17 70.001 - 75.000 486 33,657,805.57 14.88 65.001 - 70.000 271 16,819,826.84 7.43 60.001 - 65.000 208 10,892,155.31 4.81 55.001 - 60.000 157 7,932,149.58 3.51 50.001 - 55.000 96 4,911,321.14 2.17 0.001 - 50.000 391 14,833,652.29 6.56 - --------------------------------------------------------------------------------------------------------- TOTAL: 3,409 226,270,470.49 100.00 Minimum: 5.36 Maximum: 90.00 Weighted Average: 74.82 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 34 LEHMAN BROTHERS 34 GROUP IB FRM LOANS DISTRIBUTION OF LTVS AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL LTV RATIOS MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------------------------------------- 85.001 - 90.000 26 2,388,486.31 1.06 80.001 - 85.000 1,036 80,137,122.98 35.42 75.001 - 80.000 738 54,697,950.47 24.17 70.001 - 75.000 486 33,657,805.57 14.88 65.001 - 70.000 271 16,819,826.84 7.43 60.001 - 65.000 208 10,892,155.31 4.81 55.001 - 60.000 157 7,932,149.58 3.51 50.001 - 55.000 96 4,911,321.14 2.17 0.001 - 50.000 391 14,833,652.29 6.56 - --------------------------------------------------------------------------------------------------------------------- TOTAL: 3,409 226,270,470.49 100.00 Minimum: 5.36 Maximum: 90.00 Weighted Average: 74.82 GROUP IB FRM LOANS DISTRIBUTION OF CURRENT MORTGAGES AGGREGATE % OF AGGREGATE RANGE OF CURRENT NUMBER OF PRINCIPAL PRINCIPAL MORTGAGE RATES MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------------------------------------- 6.001 - 7.000 8 721,475.23 0.32 7.001 - 8.000 228 19,743,710.00 8.73 8.001 - 9.000 751 60,379,612.91 26.68 9.001 - 10.000 986 68,978,649.52 30.49 10.001 - 11.000 624 37,732,266.60 16.68 11.001 - 12.000 451 22,107,367.17 9.77 12.001 - 13.000 262 12,044,149.82 5.32 13.001 - 14.000 78 3,657,086.00 1.62 14.001 - 15.000 16 707,878.77 0.31 15.001 - 16.000 3 138,085.45 0.06 16.001 - 17.000 2 60,189.02 0.03 - --------------------------------------------------------------------------------------------------------------------- TOTAL: 3,409 226,270,470.49 100.00 Minimum: 6.5000 Maximum: 16.4500 Weighted Average: 9.7350 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 35 LEHMAN BROTHERS 35 GROUP IB FRM LOANS REMAINING TERM TO MATURITY DISTRIBUTION AGGREGATE % OF AGGREGATE REMAINING TERM NUMBER OF PRINCIPAL PRINCIPAL TO MATURITY MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------------------------------------- 37 - 48 1 37,297.01 0.02 49 - 60 17 530,621.68 0.23 61 - 72 6 166,136.91 0.07 73 - 84 20 588,922.65 0.26 85 - 96 5 243,173.26 0.11 97 - 108 2 32,181.63 0.01 109 - 120 179 6,848,871.21 3.03 121 - 132 7 294,748.15 0.13 133 - 144 30 1,419,777.40 0.63 145 - 156 5 329,453.78 0.15 157 - 168 6 411,240.12 0.18 169 - 180 1,397 87,381,686.77 38.62 181 - 192 8 408,091.15 0.18 193 - 204 11 643,905.73 0.28 205 - 216 5 383,751.05 0.17 217 - 228 56 3,581,966.54 1.58 229 - 240 737 50,362,665.95 22.26 265 - 276 2 127,000.00 0.06 277 - 288 1 15,000.00 0.01 289 - 300 24 1,846,880.31 0.82 313 - 324 1 22,886.40 0.01 337 - 348 1 162,560.55 0.07 349 - 360 888 70,431,652.24 31.13 - --------------------------------------------------------------------------------------------------------------------- TOTAL: 3,409 226,270,470.49 100.00 Minimum: 38 Maximum: 360 Weighted Average: 247.3 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 36 LEHMAN BROTHERS 36 GROUP IB FRM LOANS PRINCIPAL BALANCE DISTRIBUTION AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL PRINCIPAL BALANCES MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------------------------------------- 0.01 - 5,000.00 1 2,862.35 0.00 5,000.01 - 10,000.00 3 29,526.07 0.01 10,000.01 - 15,000.00 66 936,337.23 0.41 15,000.01 - 20,000.00 125 2,276,229.30 1.01 20,000.01 - 25,000.00 163 3,801,744.52 1.68 25,000.01 - 30,000.00 223 6,290,733.61 2.78 30,000.01 - 35,000.00 217 7,166,603.69 3.17 35,000.01 - 40,000.00 267 10,115,425.93 4.47 40,000.01 - 45,000.00 249 10,700,278.14 4.73 45,000.01 - 50,000.00 243 11,636,740.51 5.14 50,000.01 - 55,000.00 207 10,878,162.61 4.81 55,000.01 - 60,000.00 231 13,349,631.21 5.90 60,000.01 - 65,000.00 161 10,113,729.67 4.47 65,000.01 - 70,000.00 149 10,074,263.75 4.45 70,000.01 - 75,000.00 142 10,335,122.52 4.57 75,000.01 - 80,000.00 125 9,741,709.92 4.31 80,000.01 - 85,000.00 91 7,545,699.53 3.33 85,000.01 - 90,000.00 74 6,516,077.76 2.88 90,000.01 - 95,000.00 73 6,770,429.32 2.99 95,000.01 - 100,000.00 81 7,917,501.27 3.50 100,000.01 - 150,000.00 343 40,772,387.81 18.02 150,000.01 - 200,000.00 94 16,153,574.19 7.14 200,000.01 - 250,000.00 39 8,799,669.42 3.89 250,000.01 - 300,000.00 17 4,615,026.21 2.04 300,000.01 - 350,000.00 12 3,974,397.77 1.76 350,000.01 - 400,000.00 4 1,451,379.53 0.64 400,000.01 - 450,000.00 4 1,692,833.58 0.75 450,000.01 - 500,000.00 2 963,740.14 0.43 500,000.01 - 550,000.00 2 1,049,650.00 0.46 550,000.01 - 600,000.00 1 599,002.93 0.26 - --------------------------------------------------------------------------------------------------------------------- TOTAL: 3,409 226,270,470.49 100.00 Minimum: 2,862 Maximum: 599,003 Average: 66,374 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 37 LEHMAN BROTHERS 37 GROUP IB FRM LOANS SEASONING DISTRIBUTION AGGREGATE % OF AGGREGATE MONTHS ELAPSED NUMBER OF PRINCIPAL PRINCIPAL SINCE ORIGINATION MORTGAGE LOANS BALANCE BALANCE - ----------------------------------------------------------------------------------------------------------------- Equal To or Less Than 0 1,129 71,719,072.67 31.70 1- 6 2,262 153,589,353.62 67.88 7- 12 13 692,572.41 0.31 13 - 24 5 269,471.79 0.12 - ----------------------------------------------------------------------------------------------------------------- TOTAL: 3,409 226,270,470.49 100.00 Minimum: 0 Maximum: 22 Weighted Average: 1.1 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 38 LEHMAN BROTHERS 38 GROUP IIB ARM LOANS - COLLATERAL SUMMARY GROUP IIB ARM LOANS - -------------------------------------------------------------------------------------------------------------------------- NUMBER OF LOANS 1,274 TOTAL OUTSTANDING PRINCIPAL BALANCE $107,217,030 BALLOON (% OF TOTAL) 0.00% LEVEL PAY (% OF TOTAL) 100.00% AVERAGE PRINCIPAL BALANCE $84,158 $12,155 - $711,550 WEIGHTED AVERAGE LOAN RATE 10.04% 6.425% - 13.90% WEIGHTED AVERAGE MARGIN 5.879% 2.42% - 9.70% WEIGHTED AVERAGE ORIGINAL TERM (MOS.) 356 96 - 360 WEIGHTED AVERAGE REMAINING TERM (MOS.) 355 95 - 360 WEIGHTED AVERAGE MAXIMUM RATE 16.68% 13.00% - 20.90% WEIGHTED AVERAGE PERIODIC CAP - SUBSEQUENT 1.07% 1.00% - 3.00% WEIGHTED AVERAGE FLOOR 9.78% 3.875% - 13.90% INDEX 6 month LIBOR 99.58% 1 Yr CMT 0.42% WEIGHTED AVERAGE CLTV 77.59% 6.67% - 90.00% WEIGHTED AVERAGE CLTV > 80.00% 39.61% LIEN POSITION (FIRST/SECOND) 100.00% / 0.00% PROPERTY TYPE SINGLE FAMILY/PUD 91.70% CONDO/TOWNHOUSE/ROWHOUSE 3.21% TWO TO FOUR FAMILY 3.17% PREFABRICATED SINGLE FAMILY 1.92% OTHER 0.00% OCCUPANCY STATUS OWNER OCCUPIED / INVESTOR OWNER 98.82% / 1.18% GEOGRAPHIC DISTRIBUTION other states account individually for less than MI 32.53% OH 6.72% 4% of Group II pool balance IL 7.41% PA 4.12% CA 7.12% ORIGINATION YEAR 1998 87.04% 1997 12.96% CREDIT CLASS A+/A/A- 62.30% C/C- 17.38% B/B- 20.26% D 0.05% PREPAYMENT PENALTY Yes 81.52% No 18.48% - -------------------------------------------------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 39 LEHMAN BROTHERS 39 GROUP IIB ARM LOANS DISTRIBUTION BY LOAN TYPE % OF AGGREGATE WEIGHTED WEIGHTED INITIAL AVERAGE AVERAGE PRINCIPAL AVERAGE AVERAGE PERIODIC PERIODIC MAXIMUM LOAN TYPE BALANCE COUPON MARGIN CAP CAP RATE - ------------------------------------------------------------------------------------------------------------------------------- 2 Yr Fix,6 mo LIBOR 71.85 10.115 5.946 2.920 1.093 16.618 3 Yr Fix,1 Yr CMT 0.26 10.750 6.283 3.000 2.000 17.750 3 Yr Fix,6 mo LIBOR 24.04 9.893 5.745 3.000 1.004 16.880 5 Yr Fix,6 mo LIBOR 3.69 9.513 5.350 3.000 1.000 16.513 5 Yr Fix,1 Yr CMT 0.16 11.403 7.437 3.000 2.000 18.403 - ------------------------------------------------------------------------------------------------------------------------------- TOTAL: 100.00 10.043 5.879 2.943 1.072 16.683 GROUP IIB ARM LOANS GEOGRAPHIC DISTRIBUTION - ------------------------------------------------------------------------------------------------------------------------------- AGGREGATE % OF AGGREGATE NUMBER OF PRINCIPAL PRINCIPAL STATE MORTGAGE LOANS BALANCE BALANCE -------------- ------------ -------------- ARIZONA 6 533,880.72 0.50 ARKANSAS 9 417,506.82 0.39 CALIFORNIA 46 7,637,866.88 7.12 COLORADO 31 3,490,871.58 3.26 CONNECTICUT 5 532,021.09 0.50 DELAWARE 6 544,907.46 0.51 DISTRICT OF COLUMBIA 3 333,518.68 0.31 FLORIDA 18 1,607,563.17 1.50 GEORGIA 15 1,907,442.81 1.78 IDAHO 5 339,583.13 0.32 ILLINOIS 84 7,939,561.79 7.41 INDIANA 32 1,807,308.04 1.69 IOWA 21 1,091,083.94 1.02 KANSAS 10 554,902.18 0.52 KENTUCKY 4 243,043.01 0.23 LOUISIANA 7 473,300.55 0.44 MAINE 5 282,267.71 0.26 MARYLAND 30 3,215,590.04 3.00 MASSACHUSETTS 19 2,393,250.02 2.23 MICHIGAN 488 34,877,694.89 32.53 MINNESOTA 20 1,852,785.87 1.73 MISSISSIPPI 3 108,951.34 0.10 MISSOURI 17 1,244,580.99 1.16 MONTANA 1 64,973.32 0.06 NEBRASKA 5 322,372.15 0.30 - ------------------------------------------------------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 40 LEHMAN BROTHERS 40 GROUP IIB ARM LOANS GEOGRAPHIC DISTRIBUTION - ------------------------------------------------------------------------------------------------------------------------------- AGGREGATE % OF AGGREGATE NUMBER OF PRINCIPAL PRINCIPAL STATE MORTGAGE LOANS BALANCE BALANCE -------------- ------------ -------------- NEVADA 7 767,908.92 0.72 NEW HAMPSHIRE 1 46,000.00 0.04 NEW JERSEY 31 3,833,515.53 3.58 NEW MEXICO 2 73,000.00 0.07 NEW YORK 26 2,430,667.04 2.27 NORTH CAROLINA 21 1,403,760.14 1.31 OHIO 104 7,205,016.96 6.72 OKLAHOMA 1 58,341.30 0.05 OREGON 30 3,300,863.29 3.08 PENNSYLVANIA 44 4,418,595.00 4.12 RHODE ISLAND 2 325,972.15 0.30 SOUTH CAROLINA 8 518,308.19 0.48 SOUTH DAKOTA 2 148,709.81 0.14 TENNESSEE 5 546,731.49 0.51 TEXAS 5 391,303.85 0.36 UTAH 4 438,043.00 0.41 VERMONT 3 301,106.85 0.28 VIRGINIA 29 2,316,578.13 2.16 WASHINGTON 6 1,127,096.17 1.05 WEST VIRGINIA 8 414,535.71 0.39 WISCONSIN 43 3,143,617.23 2.93 WYOMING 2 190,530.97 0.18 - ------------------------------------------------------------------------------------------------------------------------------- TOTAL: 1,274 107,217,029.91 100.00 - ------------------------------------------------------------------------------------------------------------------------------- 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 41 LEHMAN BROTHERS 41 GROUP IIB ARM LOANS DISTRIBUTION OF CLTVS AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL CLTV RATIOS MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------------------------------- 85.001 - 90.000 3 271,846.49 0.25 80.001 - 85.000 452 42,191,579.07 39.35 75.001 - 80.000 390 33,192,458.77 30.96 70.001 - 75.000 187 16,103,956.31 15.02 65.001 - 70.000 69 5,362,237.09 5.00 60.001 - 65.000 51 3,510,965.32 3.27 55.001 - 60.000 40 2,247,957.66 2.10 50.001 - 55.000 19 1,155,537.87 1.08 0.001 - 50.000 63 3,180,491.33 2.97 - --------------------------------------------------------------------------------------------------------------- TOTAL: 1,274 107,217,029.91 100.00 Minimum: 6.67 Maximum: 90.00 Weighted Average: 77.59 GROUP IIB ARM LOANS DISTRIBUTION OF CURRENT MORTGAGE RATES AGGREGATE % OF AGGREGATE RANGE OF CURRENT NUMBER OF PRINCIPAL PRINCIPAL MORTGAGE RATES MORTGAGE LOANS BALANCE BALANCE - ------------------------------------------------------------------------------------------------------------- 6.001 - 7.000 2 162,485.34 0.15 7.001 - 8.000 43 4,886,811.58 4.56 8.001 - 9.000 174 19,535,996.50 18.22 9.001 - 10.000 285 27,669,903.82 25.81 10.001 - 11.000 455 34,085,795.25 31.79 11.001 - 12.000 258 16,962,918.97 15.82 12.001 - 13.000 48 3,521,228.70 3.28 13.001 - 14.000 9 391,889.75 0.37 - ------------------------------------------------------------------------------------------------------------- TOTAL: 1,274 107,217,029.91 100.00 Minimum: 6.4250 Maximum: 13.9000 Weighted Average: 10.0432 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 42 LEHMAN BROTHERS 42 GROUP IIB ARM LOANS REMAINING TERM TO MATURITY DISTRIBUTION AGGREGATE % OF AGGREGATE REMAINING TERM NUMBER OF PRINCIPAL PRINCIPAL TO MATURITY MORTGAGE LOANS BALANCE BALANCE - ----------------------------------------------------------------------------------------------------------- 85 - 96 1 29,541.82 0.03 133 - 144 1 28,700.33 0.03 169 - 180 22 1,364,977.21 1.27 217 - 228 2 89,144.82 0.08 229 - 240 18 951,880.31 0.89 289 - 300 3 133,583.06 0.12 349 - 360 1,227 104,619,202.36 97.58 - ----------------------------------------------------------------------------------------------------------- TOTAL: 1,274 107,217,029.91 100.00 Minimum: 95 Maximum: 360 Weighted Average: 354.9 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 43 LEHMAN BROTHERS 43 GROUP IIB ARM LOANS PRINCIPAL BALANCE DISTRIBUTION AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL PRINCIPAL BALANCES MORTGAGE LOANS BALANCE BALANCE - -------------------------------------------------------------------------------------------------------------------- 10,000.01 -15,000.00 3 42,142.48 0.04 15,000.01 -20,000.00 8 149,534.39 0.14 20,000.01 -25,000.00 20 473,093.50 0.44 25,000.01 -30,000.00 45 1,274,197.30 1.19 30,000.01 -35,000.00 49 1,620,769.80 1.51 35,000.01 -40,000.00 64 2,420,532.45 2.26 40,000.01 -45,000.00 80 3,444,124.73 3.21 45,000.01 -50,000.00 82 3,923,113.89 3.66 50,000.01 -55,000.00 69 3,642,778.83 3.40 55,000.01 -60,000.00 96 5,569,877.51 5.19 60,000.01 -65,000.00 76 4,785,091.24 4.46 65,000.01 -70,000.00 79 5,355,337.00 4.99 70,000.01 -75,000.00 58 4,199,221.32 3.92 75,000.01 -80,000.00 54 4,199,659.10 3.92 80,000.01 -85,000.00 31 2,557,043.83 2.38 85,000.01 -90,000.00 36 3,180,231.85 2.97 90,000.01 -95,000.00 46 4,264,483.16 3.98 95,000.01 -100,000.00 42 4,104,068.44 3.83 100,000.01 -150,000.00 222 26,923,636.17 25.11 150,000.01 -200,000.00 61 10,553,234.53 9.84 200,000.01 -250,000.00 30 6,631,498.23 6.19 250,000.01 -300,000.00 12 3,243,751.63 3.03 300,000.01 -350,000.00 5 1,653,715.02 1.54 400,000.01 -450,000.00 2 840,941.94 0.78 450,000.01 -500,000.00 3 1,453,401.57 1.36 700,000.01 -750,000.00 1 711,550.00 0.66 - -------------------------------------------------------------------------------------------------------------------- TOTAL: 1,274 107,217,029.91 100.00 Minimum: 12,155 Maximum: 711,550 Average: 84,158 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 44 LEHMAN BROTHERS 44 GROUP IIB ARM LOANS SEASONING DISTRIBUTION AGGREGATE % OF AGGREGATE MONTHS ELAPSED NUMBER OF PRINCIPAL PRINCIPAL SINCE ORIGINATION MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------------------- Equal To or Less Than 0 493 35,932,651.01 33.51 1 -6 769 69,311,006.79 64.65 7 -12 12 1,973,372.11 1.84 - --------------------------------------------------------------------------------------------------- TOTAL: 1,274 107,217,029.91 100.00 Minimum: 0 Maximum: 10 Weighted Average: 1.4 GROUP IIB ARM LOANS DISTRIBUTION OF MAXIMUM MORTGAGE RATES AGGREGATE % OF AGGREGATE RANGE OF MAXIMUM NUMBER OF PRINCIPAL PRINCIPAL MORTGAGE RATES MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------------------- 13.000 - 13.499 2 162,485.34 0.15 13.500 - 13.999 1 95,632.32 0.09 14.000 - 14.499 5 873,040.35 0.81 14.500 - 14.999 45 4,875,426.51 4.55 15.000 - 15.499 76 8,463,179.04 7.89 15.500 - 15.999 159 16,687,948.79 15.56 16.000 - 16.499 257 20,367,677.56 19.00 16.500 - 16.999 188 16,085,256.02 15.00 17.000 - 17.499 151 11,912,591.64 11.11 17.500 - 17.999 229 17,245,499.98 16.08 18.000 - 18.499 70 4,576,068.38 4.27 18.500 - 18.999 38 2,206,973.67 2.06 19.000 - 19.499 29 2,193,627.11 2.05 19.500 - 19.999 15 1,079,733.45 1.01 20.000 - 20.499 6 308,676.49 0.29 20.500 - 20.999 3 83,213.26 0.08 - --------------------------------------------------------------------------------------------------- TOTAL: 1,274 107,217,029.91 100.00 Minimum: 13.0000 Maximum: 20.9000 Weighted Average: 16.6827 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 45 LEHMAN BROTHERS 45 GROUP IIB ARM LOANS DISTRIBUTION OF MINIMUM MORTGAGE RATES AGGREGATE % OF AGGREGATE RANGE OF MINIMUM NUMBER OF PRINCIPAL PRINCIPAL MORTGAGE RATES MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------------------------------------- 3.500 - 3.999 4 314,402.20 0.29 4.000 - 4.499 12 777,332.03 0.73 4.500 - 4.999 19 1,200,569.11 1.12 5.000 - 5.499 4 364,172.69 0.34 5.500 - 5.999 7 748,972.90 0.70 6.000 - 6.499 8 1,057,990.17 0.99 6.500 - 6.999 3 276,351.77 0.26 7.000 - 7.499 11 919,980.59 0.86 7.500 - 7.999 39 4,100,929.59 3.82 8.000 - 8.499 71 7,975,123.49 7.44 8.500 - 8.999 110 12,406,813.92 11.57 9.000 - 9.499 84 8,218,909.39 7.67 9.500 - 9.999 167 16,010,732.67 14.93 10.000 - 10.499 234 17,087,046.32 15.94 10.500 - 10.999 196 15,470,631.22 14.43 11.000 - 11.499 113 7,626,541.13 7.11 11.500 - 11.999 130 8,439,259.02 7.87 12.000 - 12.499 37 2,793,991.69 2.61 12.500 - 12.999 16 1,035,390.26 0.97 13.000 - 13.499 4 253,660.61 0.24 13.500 - 13.999 5 138,229.14 0.13 - --------------------------------------------------------------------------------------------------------------------- TOTAL: 1,274 107,217,029.91 100.00 Minimum: 3.8750 Maximum: 13.9000 Weighted Average: 9.7829 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 46 LEHMAN BROTHERS 46 GROUP IIB ARM LOANS DISTRIBUTION OF MARGINS AGGREGATE % OF AGGREGATE RANGE OF NUMBER OF PRINCIPAL PRINCIPAL MARGINS MORTGAGE LOANS BALANCE BALANCE - --------------------------------------------------------------------------------------------------------------------- 2.001 - 3.000 4 286,923.78 0.27 3.001 - 4.000 42 4,240,446.03 3.96 4.001 - 5.000 232 23,738,491.28 22.14 5.001 - 6.000 345 31,217,620.54 29.12 6.001 - 7.000 422 32,634,959.78 30.44 7.001 - 8.000 186 12,738,860.29 11.88 8.001 - 9.000 39 2,249,530.34 2.10 9.001 - 10.000 4 110,197.87 0.10 - --------------------------------------------------------------------------------------------------------------------- TOTAL: 1,274 107,217,029.91 100.00 Minimum: 2.4200 Maximum: 9.7000 Weighted Average: 5.8790 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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). 47 LEHMAN BROTHERS 47 GROUP IIB ARM LOANS DISTRIBUTION BY NEXT INTEREST ADJUSTMENT DATE AGGREGATE % OF AGGREGATE NEXT INTEREST NUMBER OF PRINCIPAL PRINCIPAL ADJUSTMENT DATE MORTGAGE LOANS BALANCE BALANCE - ---------------------------------------------------------------------------------------------------------- 1999-07 2 261,524.66 0.24 1999-08 2 172,148.05 0.16 1999-09 2 337,932.76 0.32 1999-10 5 1,018,511.10 0.95 1999-11 5 382,822.33 0.36 1999-12 30 3,799,652.94 3.54 2000-01 71 7,303,933.89 6.81 2000-02 64 7,697,020.99 7.18 2000-03 82 6,993,385.54 6.52 2000-04 304 24,819,953.61 23.15 2000-05 304 21,367,118.14 19.93 2000-06 41 2,877,710.00 2.68 2000-10 1 183,255.54 0.17 2000-12 1 53,385.86 0.05 2001-01 3 364,988.99 0.34 2001-03 23 1,777,861.73 1.66 2001-04 160 13,181,429.64 12.29 2001-05 134 10,429,727.87 9.73 2001-06 1 65,520.00 0.06 2002-12 1 78,143.12 0.07 2003-03 1 66,801.94 0.06 2003-04 24 2,791,626.21 2.60 2003-05 13 1,192,575.00 1.11 - ---------------------------------------------------------------------------------------------------------- TOTAL: 1,274 107,217,029.91 100.00 Minimum: 07/01/99 Maximum: 05/15/03 Weighted Average: 08/01/00 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 AND DELIVERED BY LEHMAN BROTHERS INC. AND THE CONTENTS AND ACCURACY THEREOF HAVE NOT BEEN REVIEWED BY THE ISSUER. THIS INFORMATION WAS PREPARED ON THE BASIS OF CERTAIN ASSUMPTIONS (INCLUDING, IN CERTAIN CASES, ASSUMPTIONS SPECIFIED BY THE RECIPIENT HEREOF) REGARDING PAYMENTS, INTEREST RATES, WEIGHTED AVERAGE LIVES, WEIGHTED AVERAGE LOAN AGE, 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).