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AND WILL BE DEEMED TO BE SUPERSEDED BY ANY SUBSEQUENT VERSIONS (INCLUDING, WITH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).