BEAR STEARNS ASSET BACKED SECURITIES INC
8-K, 1999-03-10
ASSET-BACKED SECURITIES
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- -----------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    Form 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

                     Date of Report (Date of earliest Event
                            Reported): March 10, 1999





                   BEAR STEARNS ASSET BACKED SECURITIES, INC.

             (Exact name of registrant as specified in its charter)

     Delaware                    333-9532                    13-3836437
(State or Other Jurisdiction    (Commission               (I.R.S. Employer
of Incorporation)               File Number)             Identification No.)

245 Park Avenue
New York, New York                                                 10167
(Address of Principal                                             (Zip Code)
Executive Offices)

Registrant's telephone number, including area code (212) 272-4095

- -----------------------------------------------------------------




<PAGE>




Item 5.  Other Events.

Filing of Computational Materials

         In connection  with the proposed  offering of the United  National Bank
Home Loan Asset-Backed Notes, Series 1999-1, Bear, Stearns & Co. Inc., and Coast
Partners Securities, Inc. as the underwriter (the "Underwriters"),  has prepared
certain  materials (the  "Computational  Materials")  for  distribution to their
potential  investors.  Although Bear Stearns Asset Backed Securities,  Inc. (the
"Company")  provided the  Underwriters  with certain  information  regarding the
characteristics  of the home loans (the "Home Loans") in the related  portfolio,
the  Company  did  not  participate  in the  preparation  of  the  Computational
Materials.

         For purposes of this Form 8-K,  Computational  Materials shall mean the
Series 1999-1 term sheet, computer generated tables and/or charts displaying any
of the following:  yield;  average life; duration,  expected maturity;  interest
rate  sensitivity;  loss  sensitivity;  cash  flow  characteristics;  background
information  regarding the Mortgage  Loans;  the proposed  structure;  decrement
tables;  or  similar  information  (tabular  or  otherwise)  of  a  statistical,
mathematical,  tabular or computational nature. The Computational  Materials are
attached hereto as Exhibit 99.1.


Item 7.  Financial Statements, Pro Forma Financial

         Information and Exhibits.

(a)      Not applicable.

(b)      Not applicable.

(c)      Exhibits:

         99.1  The  Computational  Materials,  filed on Form 8-K dated March 10,
1999.


<PAGE>


                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934, as
amended,  the  registrant has duly caused this report to be signed on its behalf
by the undersigned hereunto duly authorized.

                                                     BEAR STEARNS ASSET BACKED
                                                       SECURITIES, INC.

                                                     By:   /s/ Matt Perkins
                                                         ---------------------
                                                     Name:   Matt Perkins
                                                     Title:  Managing Director

Dated:  March 10, 1999


<PAGE>


                                  Exhibit Index

Exhibit                                                                Page

99.1   The Computational Materials, filed on Form 8-K                   6
       dated March 10, 1999


<PAGE>





                                  Exhibit 99.1


[GRAPHIC OMITTED]                                       BEAR, STEARNS & CO. INC.
ATLANTA o B0OSTON o CHICAGO                        ASSET-BACKED SECURITIES GROUP
DALLAS o LOS ANGELES o NEW YORK o SAN FRANCISCO                  245 Park Avenue
FRANKFORT o GENEVA o HONG KONG                              New York, N.Y. 10167
LONDON o PARIS o TOKYO                     (212) 272-2000;  (212) 272-7294   fax
- -------------------------------------------------------------------------------
                UNITED NATIONAL BANK HOME LOAN OWNER TRUST 1999-1
- --------------------------------------------------------------------------------
                             COMPUTATIONAL MATERIALS
- ------------------- ------------------------------------------------------------
FAX TO:                                                         DATE:
COMPANY:                                       # PAGES (incl. cover):       18
FAX NO:                                                     PHONE NO:
- ------------------- ------------------------ ------------------------------ 
FROM:                                                       PHONE NO:
- ------------------- ------------------------ ------------------------------ 

                STATEMENT REGARDING ASSUMPTIONS AS TO SECURITIES,
                    PRICING ESTIMATES, AND OTHER INFORMATION

The  information  contained in the attached  materials (the  "Information")  may
include  various forms of performance  analysis,  security  characteristics  and
securities  pricing  estimates  for the  securities  addressed.  Please read and
understand  this  entire  statement   before  utilizing  the  Information.   The
Information is provided solely by [Bear Stearns] [Coast Partners],  not as agent
for any  issuer,  and  although  it may be  based on data  supplied  to it by an
issuer,  the  issuer  has not  participated  in its  preparation  and  makes  no
representations  regarding  its  accuracy  or  completeness.  Should you receive
Information  that  refers  to the  "Statement  Regarding  Assumptions  and Other
Information," please refer to this statement instead.

The  Information is  illustrative  and is not intended to predict actual results
which  may  differ  substantially  from  those  reflected  in  the  Information.
Performance analysis is based on certain assumptions with respect to significant
factors  that  may  prove  not  to be as  assumed.  You  should  understand  the
assumptions  and  evaluate  whether  they are  appropriate  for  your  purposes.
Performance  results  are  based  on  mathematical  models  that use  inputs  to
calculate results. As with all models, results may vary significantly  depending
upon the value of the inputs given.  Inputs to these models  include but are not
limited to: prepayment expectations (economic prepayment models, single expected
lifetime  prepayments  or a  vector  of  periodic  prepayments),  interest  rate
assumptions   (parallel  and   nonparallel   changes  for   different   maturity
instruments),  collateral  assumptions (actual pool level data,  aggregated pool
level  data,  reported  factors  or  imputed  factors),  volatility  assumptions
(historically  observed or implied  current) and reported  information  (paydown
factors,  rate resets, and trustee statements).  Models used in any analysis may
be  proprietary  making the results  difficult for any third party to reproduce.
Contact your registered representative for detailed explanations of any modeling
techniques employed in the Information.

The  Information  addresses only certain  aspects of the  applicable  security's
characteristics  and thus does not provide a complete  assessment.  As such, the
Information may not reflect the impact of all structural  characteristics of the
security,  including  call  events and cash flow  priorities  at all  prepayment
speeds and/or interest rates.  You should consider whether the behavior of these
securities should be tested as assumptions  different from those included in the
Information. The assumptions underlying the Information, including structure and
collateral,  may be modified from time to time to reflect changed circumstances.
Any investment  decision  should be based only on the data in the prospectus and
the prospectus  supplement or private placement  memorandum (Offering Documents)
and  the  then  current  version  of the  Information.  Any  information  herein
regarding the  collateral or the  securities  supersedes  any prior  information
regarding the collateral or the securities and will be superseded by information
regarding  the  collateral  and/or  the  securities  contained  in the  Offering
Documents.  Offering  Documents  contain  data  that  is  current  as  of  their
publication  dates and after  publication  may no longer be complete or current.
Contact  your  registered   representative  for  Offering   Documents,   current
Information  or additional  materials,  including  other models for  performance
analysis,  which are  likely  to  produce  different  results,  and any  further
explanation regarding the Information.

Any pricing  estimates  [Bear  Stearns]  [Coast  Partners]  has supplied at your
request (a) represent our view, at the time determined,  of the investment value
of the securities between the estimated bid and offer levels, the spread between
which may be significant  due to market  volatility or  illiquidity,  (b) do not
constitute a bid by any person for any security,  (c) may not constitute  prices
at which the  securities  could have been  purchased or sold in any market,  (d)
have not been confirmed by actual  trades,  may vary from the value Bear Stearns
assigns any such security while in its inventory,  and may not take into account
the size of a position you have in the  security,  and (e) may have been derived
from matrix pricing that uses data relating to other securities whose prices are
more  readily  ascertainable  to  produce  a  hypothetical  price  based  on the
estimated yield spread relationship between the securities.


<PAGE>


                                [OBJECT OMITTED]

This information should be considered only after reading Bear Stearns' Statement
Regarding Assumptions as to Securities,  Pricing Estimates and Other Information
(the  "Statement"),  which  should  be  attached.  Do not  use or  rely  on this
information if you have not received and reviewed this Statement. You may obtain
a copy of the Statement from your sales representative.

GENERAL INFORMATION:  The data underlying the Information has been obtained from
sources that we believe are  reliable,  but we do not  guarantee the accuracy of
the  underlying  data or  computations  based  thereon.  [Bear  Stearns]  [Coast
Partners]  and/or  individuals  thereof may have  positions in these  securities
while the  Information  is  circulating  or during  such  period  may  engage in
transactions  with  the  issuer  or  its  affiliates.  We act  as  principal  in
transactions with you, and accordingly,  you must determine the  appropriateness
for  you of  such  transactions  and  address  any  legal,  tax,  or  accounting
considerations applicable to you. [Bear Stearns] [Coast Partners] shall not be a
fiduciary  or advisor  unless we have agreed in writing to receive  compensation
specifically  to act in  such  capacities.  If you are  subject  to  ERISA,  the
Information is being  furnished on the condition that it will not form a primary
basis for any investment decision.  The Information is not a solicitation of any
transaction in securities  which may be made only by prospectus when required by
law, in which event you may obtain such  prospectus  from [Bear Stearns]  [Coast
Partners].


<PAGE>


UNITED NATIONAL BANK HOME LOAN OWNER TRUST 1999-1
Computational Materials: Preliminary Term Sheet  
- -------------------------------------------------------------------------------

                       141,629,000 PUBLIC OFFERING

ISSUER:                United National Bank Home Loan Owner Trust 1999-1

SELLER:                United National Bank, N.A.

DEPOSITOR:             Bear Stearns Asset Backed Securities Inc.

MASTER SERVICER:       Advanta Mortgage Corp. USA

LEAD UNDERWRITER:      Bear, Stearns & Co. Inc.

CO-UNDERWRITER:        Coast Partners Securities Inc.

INDENTURE TRUSTEE:     U.S. Bank, N.A.

OWNER TRUSTEE:         Wilmington Trust Company

SECURITIES:            The Trust  will  issue 3 classes  of Asset  Backed  Notes
                       (namely,  the Class A Notes  (the  "Senior  Notes"),  the
                       Class  M-1 Notes  and  Class  M-2  Notes  (together,  the
                       "Mezzanine  Notes",  and, together with the Senior Notes,
                       the  "Offered  Notes");  and 6  classes  of Asset  Backed
                       Certificates (namely, the Class IO, Class B-1, Class B-2,
                       Class B-3, Class B-4 and Residual Interest  Certificates)
                       (collectively, the "Certificates").  THE CERTIFICATES ARE
                       NOT BEING OFFERED HEREBY.


<TABLE>
<CAPTION>
CHARACTERISTICS OF THE OFFERED NOTES AND THE RETAINED CERTIFICATES:
- ------------------------- ------------ -------------- ----------- ----------- ------------ ----------- ----------------------
                                         ORIGINAL      PERCENT    AVG. LIFE   PRINCIPAL    PRINCIPAL         EXPECTED
                           OFFERED/      PRINCIPAL     OF POOL      TO MTY      LOCKOUT      WINDOW           RATINGS
SECURITIES                 RETAINED       BALANCE      BALANCE     (YEARS)     (MONTHS)     (MONTHS)     (S&P / MOODY'S /
                                                                                                              FITCH )
- ------------------------- ------------ -------------- ----------- ----------- ------------ ----------- ----------------------
<S>                       <C>           <C>              <C>        <C>       <C>            <C>           <C>         
CLASS A NOTES               OFFERED     $112,893,000     55.0%      2.60        NONE         272            AAA/Aaa/AAA
Class A-IO Certificates    Retained         Notional    100.0%      (1)          (1)         (1)               (1)
CLASS M-1 NOTES             OFFERED      $14,368,000      7.0%      8.79         48          224             AA/AA2/AA
CLASS M-2 NOTES             OFFERED      $14,368,000      7.0%      8.79         48          224              A/A2/A
Class B-1 Certificates     Retained      $24,631,000     12.0%      (1)          (1)         (1)               (1)
Class B-2 Certificates     Retained       $6,158,000      3.0%      (1)          (1)         (1)               (1)
Class B-3 Certificates     Retained       $4,105,000      2.0%      (1)          (1)         (1)               (1)
Class B-4 Certificates     Retained      $28,737,000     14.0%      (1)          (1)         (1)               (1)
Residual Certificates      Retained         Notional    100.0%      (1)          (1)         (1)               (1)
- ------------------------- ------------ -------------- ----------- ----------- ------------ ----------- ----------------------
</TABLE>

NOTE:   (1) THE CERTIFICATES ARE NOT BEING OFFERED HEREBY.

CUT-OFF DATE:          The close of business on February 28, 1999.

SETTLEMENT DATE:       On or about March 26, 1999


<PAGE>




FORM OF REGISTRATION:  Book-Entry form, same day funds through DTC.

PAYMENT DATES:         The 25th of each  month or, if such day is not a Business
                       Day, the next  succeeding  Business  Day,  commencing  in
                       April 1999.

PAYMENT DELAY:         24 days

NOTE INTEREST ACCRUAL: Interest will accrue on the Notes on a "30/360" basis.

NOTIONAL AMOUNT:       The Class A-IO  Certificates  are also referred to herein
                       as the "Interest Only Certificates".  The Notional Amount
                       of the Class A-IO  Certificates  as of any  Payment  Date
                       will  be  equal  to  the  then-current  outstanding  Pool
                       Principal Balance (the "Current Pool Principal Balance").
                       On any Payment Date, the  Certificates  Rate on the Class
                       A-IO  Certificates will be equal to the excess of (X) the
                       weighted  average  gross coupon on the Home Loans and (Y)
                       [_.__]% (i.e., the coupon on the Notes and Certificates).
                       References  herein to the Notional Amount are used solely
                       for certain  calculations  and do not represent the right
                       of the Class A-IO  Certificates to receive  distributions
                       of  principal.

PRICING PREPAYMENT     Starting at 0.0% CPR in the 1st  month SPEED  ASSUMPTION:
                       of the life of a  Home  Loan,  thereafter  increasing  by
                       1.0714% per month  to 15.0% in the 15th month.  After the
                       15th  month,  the  prepayment  rate  remains  constant at
                       15.0% CPR.

ASSETS OF THE TRUST:   The assets of the Trust will consist  primarily of a pool
                       of home loans ("Home Loans") secured by mortgages,  deeds
                       of  trust or other  security  instruments  ("Mortgages").
                       Substantially  all of the  mortgages  for the Home  Loans
                       will be junior in priority to one or more senior liens on
                       the  related  mortgaged  properties,  which will  consist
                       primarily of owner occupied single family residences.  In
                       addition,  substantially  all of the Home  Loans  will be
                       secured  by liens on  mortgaged  properties  in which the
                       borrowers  have  little or no equity  (i.e.,  the related
                       combined loan-to-value ratios approach or exceed 100%).

                       It is expected  that,  as of the Cut-off  Date,  the Home
                       Loans will consist of loans having an aggregate principal
                       balance of approximately $205,259,057 and will consist of
                       5,539 loans.

SERVICING FEE/
TRUSTEE FEES:          The  Trust  is  subject  to  certain  fees,  including  a
                       Servicing  Fee of 0.75% per  annum  payable  monthly,  an
                       Indenture  Trustee Fee and an Owner  Trustee Fee of 0.02%
                       (combined) per annum payable monthly.



<PAGE>



ADVANCING:             There is no required advancing of delinquent principal or
                       interest  by the  Servicer,  the  Trustees  or any  other
                       entity.

CREDIT ENHANCEMENT:    Credit  enhancement  for the Notes  will be  provided  by
                       subordination as described below:

                       ------------------------ -------------------------
                                                        INITIAL
                       OFFERED                       SUBORDINATION
                       NOTES                     AS OF THE CLOSING DATE
                       ------------------------ -------------------------
                       Class A Notes                      45%
                       Class M-1 Notes                    38%
                       Class M-2 Notes                    31%
                       ------------------------ -------------------------

                       The  rights of the Class  M-1 Notes to  receive  payments
                       will be  subordinated  to such rights of the Senior Notes
                       and the Class A-IO Certificates.  The rights of the Class
                       M-2 Notes to receive  payments  will be  subordinated  to
                       such  rights  of  the  Senior   Notes,   the  Class  A-IO
                       Certificates and the Class M-1 Notes.

APPLICATION OF ALLOCABLE
LOSS AMOUNTS:          Any  Allocable  Loss Amounts will be applied in reduction
                       of principal, in the following order of priority: (1) the
                       Class B-4 Certificates,  until the Class B-4 Certificates
                       have   been   reduced   to  zero;   (2)  the   Class  B-3
                       Certificates,  until the Class B-3 Certificates have been
                       reduced to zero;  (3) the Class B-2  Certificates,  until
                       the Class B-2 Certificates have been reduced to zero; (4)
                       the   Class  B-1   Certificates,   until  the  Class  B-1
                       Certificates have been reduced to zero; (5) the Class M-2
                       Notes,  until the Class M-2 Notes  have been  reduced  to
                       zero;  and (6) the Class M-1  Notes,  until the Class M-1
                       Notes have been  reduced to zero.  The Senior  Notes will
                       not be  reduced  for  any  Allocable  Loss  Amounts.  Any
                       Allocable Loss Amounts  applied in reduction of principal
                       of the  Class  M-1  Notes,  Class  M-2  Notes,  Class B-1
                       Certificates,   Class   B-2   Certificates,   Class   B-3
                       Certificates  or Class B-4  Certificates  (the "Carryover
                       Amounts")   will  entitle  each  such  class  to  receive
                       reimbursement for such amount on future payment dates, to
                       the extent funds are available therefor.


<PAGE>



PRIORITY OF PAYMENTS:  Payments of  interest of and  principal  on the Notes and
                          Certificates will be applied as follows:
                          1) To pay  accrued  and unpaid  interest on the Senior
                          Notes and Class A-IO  Certificates,  PRO RATA (without
                          any priority);
                          2) To pay accrued and unpaid  interest,  sequentially,
                          on the Class M-1  Notes,  Class M-2  Notes,  Class B-1
                          Certificates,   Class  B-2  Certificates,   Class  B-3
                          Certificates  and  Class  B-4  Certificates,  in  that
                          order;
                          3) To pay as principal, to the Senior Notes, an amount
                          necessary to reduce the balance of the Senior Notes to
                          the Senior Optimal Principal Balance;
                          4) To pay as  principal  to the  Class M-1  Notes,  an
                          amount  necessary  to reduce the  balance of the Class
                          M-1 Notes to the Class M-1 Optimal Principal Balance;
                          5) To pay as  principal  to the  Class M-2  Notes,  an
                          amount  necessary  to reduce the  balance of the Class
                          M-2 Notes to the Class M-2 Optimal Principal Balance;
                          6) To pay as principal to the Class B-1  Certificates,
                          an amount necessary to reduce the balance of the Class
                          B-1  Certificates  to the Class B-1 Optimal  Principal
                          Balance;
                          7) To pay as principal to the Class B-2  Certificates,
                          an amount necessary to reduce the balance of the Class
                          B-2  Certificates  to the Class B-2 Optimal  Principal
                          Balance;
                          8) To pay as principal to the Class B-3  Certificates,
                          an amount necessary to reduce the balance of the Class
                          B-3  Certificates  to the Class B-3 Optimal  Principal
                          Balance;
                          9) To pay as principal to the Class B-4  Certificates,
                          an amount necessary to reduce the balance of the Class
                          B-4  Certificates  to the Class B-4 Optimal  Principal
                          Balance;
                          10) To pay the Class M-1 Notes, Class M-2 Notes, Class
                          B-1  Certificates,  Class B-2  Certificate,  Class B-3
                          Certificates and Class B-4 Certificate, in that order,
                          any Carryover Amounts;
                          11) To pay any servicer reimbursable amounts; and
                          12) Any remaining amounts shall be paid to the holders
                          of the Residual Interest Certificate.

STEPDOWN DATE:         The  Stepdown  Date  is the Payment Date occurring on the
                       later of:

                   1)  The first  Payment Date after that of March 2002 (i.e. on
                       the 37th Payment Date); and
                   2)  The first Payment Date on which the  aggregate  principal
                       balance of the Senior Notes has been reduced to an amount
                       less than or equal to 10.0% of the Pool Principal Balance
                       as of the preceding Determination Date.

<PAGE>

SENIOR OPTIMAL PRINCIPAL
BALANCE:               As to any Payment Date before the Stepdown Date, $0. With
                       respect to any other  Payment  Date,  an amount  equal to
                       10.0% of the Pool Principal Balance.

CLASS M-1 OPTIMAL PRINCIPAL
BALANCE:               As to any Payment  Date  before the  Stepdown  Date,  the
                       original  principal  balance of the Class M-1 Notes. With
                       respect to any other  Payment  Date,  the Pool  Principal
                       Balance as of the end of the  related  collection  period
                       MINUs the sum of (a) the principal  balance of the Senior
                       Notes and (b) 76.0% of the Pool Principal Balance.

CLASS M-2 OPTIMAL PRINCIPAL
BALANCE:               As to any Payment  Date  before the  Stepdown  Date,  the
                       original  principal  balance of the Class M-2 Notes. With
                       respect to any other  Payment  Date,  the Pool  Principal
                       Balance as of the end of the  related  collection  period
                       MINUs the sum of (a) the aggregate  principal  balance of
                       the Senior Notes and the Class M-1 Notes and (b) 62.0% of
                       the Pool Principal Balance.

CLASS B-1 OPTIMAL PRINCIPAL
BALANCE:               As to any Payment  Date  before the  Stepdown  Date,  the
                       original principal balance of the Class B-1 Certificates.
                       With  respect  to  any  other  Payment  Date,   the  Pool
                       Principal Balance as of the end of the related collection
                       period  minus  the  sum of (a)  the  aggregate  principal
                       balance  of the Senior  Notes,  Class M-1 Notes and Class
                       M-2 Notes and (b) 38.0% of the Pool Principal Balance.

CLASS B-2 OPTIMAL PRINCIPAL
BALANCE:               As to any Payment  Date  before the  Stepdown  Date,  the
                       original principal balance of the Class B-2 Certificates.
                       With  respect  to  any  other  Payment  Date,   the  Pool
                       Principal Balance as of the end of the related collection
                       period  MINUs  the  sum of (a)  the  aggregate  principal
                       balance of the Senior Notes,  Class M-1 Notes,  Class M-2
                       Notes  and Class  B-1  Certificates  and (b) 32.0% of the
                       Pool Principal Balance.


<PAGE>


CLASS B-3 OPTIMAL PRINCIPAL
BALANCE:               As to any Payment  Date  before the  Stepdown  Date,  the
                       original principal balance of the Class B-3 Certificates.
                       With  respect  to  any  other  Payment  Date,   the  Pool
                       Principal Balance as of the preceding  Determination Date
                       MINUs the sum of (a) the aggregate  principal  balance of
                       the Senior Notes, Class M-1 Notes, Class M-2 Notes, Class
                       B-1 Certificates and Class B-2 Certificates and (b) 28.0%
                       of  the  Pool  Principal  Balance  as  of  the  preceding
                       Determination Date.

CLASS B-4 OPTIMAL PRINCIPAL
BALANCE:               As to any Payment  Date  before the  Stepdown  Date,  the
                       original principal balance of the Class B-4 Certificates.
                       With  respect  to  any  other  Payment  Date,   the  Pool
                       Principal Balance as of the preceding  Determination Date
                       MINUs the sum of the aggregate  principal  balance of the
                       Senior Notes, Class M-1 Notes, Class M-2 Notes, Class B-1
                       Certificates,   Class  B-2  Certificates  and  Class  B-3
                       Certificates.

OPTIONAL TERMINATION:  The Seller may cause an early  redemption of the Notes on
                       any Payment Date when the Current Pool Principal  Balance
                       is less  than or  equal  to  [5]%  of the  Original  Pool
                       Principal  Balance  (the first  such  Payment  Date,  the
                       "Initial Call Date"), by providing for the payment of the
                       redemption price.

TAX STATUS:            For  federal  income  tax  purposes,  the  Notes  will be
                       characterized as debt.

ERISA ELIGIBILITY:     Subject  to the  conditions  set forth in the  Prospectus
                       Supplement,  the  Notes  may  be  purchased  by  employee
                       benefit plans that are subject to ERISA.

SMMEA TREATMENT:       The  Notes   will  NOT   constitute   "mortgage   related
                       securities" for purposes of SMMEA.

PROSPECTUS:            The Notes  are being  offered  pursuant  to a  Prospectus
                       which  includes a Prospectus  Supplement  (together,  the
                       "Prospectus").  Complete  information with respect to the
                       Notes and the Home Loans is contained in the  Prospectus.
                       The  material   presented  herein  is  qualified  in  its
                       entirety by the information  appearing in the Prospectus.
                       To the extent that the foregoing is inconsistent with the
                       Prospectus,  the Prospectus shall govern in all respects.
                       Sales of the  Notes  may not be  consummated  unless  the
                       purchaser has received the Prospectus.



<PAGE>

           THE INFORMATION CONTAINED HEREIN WILL BE SUPERSEDED BY THE
     DESCRIPTION OF THE COLLATERAL CONTAINED IN THE PROSPECTUS SUPPLEMENT.

TOTAL NUMBER OF LOANS:                                          5,539

INITIAL PRINCIPAL BALANCE:                                 $205,259,057

AVERAGE LOAN BALANCE:                                           $37,057

WA MORTGAGE RATE:                                                13.27%
   RANGE OF MORTGAGE RATES:                           (11.00% - 17.99%)

WA REMAINING TERM (MONTHS):                                         242
   RANGE OF REMAINING TERMS:                                 (41 - 296)

WA ORIGINAL TERM (MONTHS):                                          248
   RANGE OF ORIGINAL TERMS:                                    (48-300)

WA CREDIT SCORE:                                                    687
   RANGE OF CREDIT SCORES:
      Up to 639                                                   0.25%
      640 to 679                                                 44.78%
      680 to 719                                                 40.27%
      720 or higher                                              14.69%

WA DEBT-TO-INCOME RATIO:                                         36.32%
      Percent greater than 45%                                    4.52%

WA COMBINED LTV:                                                113.64%
      Percent greater than 100%                                  88.61%

FIRST LIENS:                                                      0.51%

FHA TITLE I:                                                       NONE

GEOGRAPHIC CONCENTRATION:                                    CA  22.35%
(as a Percentage of the Aggregate Principal                  FL  12.35%
Balance)
(STATES NOT LISTED ACCOUNT FOR                               AZ    5.52%
LESS THAN 5% OF THE AGGREGATE
PRINCIPAL BALANCE OF THE CATEGORY)



<PAGE>

LOAN RATES
                                                                   PERCENTAGE OF
        RANGE OF           NUMBER OF           CUT-OFF DATE         CUT-OFF DATE
     LOAN RATES (%)       HOME LOANS         PRINCIPAL BALANCE       PRINCIPAL
                                                                      BALANCE
- --------------------------------------------------------------------------------
     10.51 to 11.00                                                        0.05%
                                       3                $95,647
     11.01 to 11.50                                                         6.51
                                     335             13,362,828
     11.51 to 12.00                                                        18.23
                                     940             37,409,677
     12.01 to 12.50                                                         8.30
                                     439             17,030,339
     12.51 to 13.00                                                        22.21
                                   1,172             45,597,688
     13.01 to 13.50                                                         6.42
                                     366             13,184,925
     13.51 to 14.00                                                        21.15
                                   1,214             43,402,264
     14.01 to 14.50                                                         3.29
                                     208              6,747,562
     14.51 to 15.00                                                         8.91
                                     541             18,293,519
     15.01 to 15.50                                                         1.74
                                     109              3,570,820
     15.51 to 16.00                                                         2.50
                                     162              5,132,522
     16.01 to 16.50                                                         0.36
                                      25                732,412
     16.51 to 17.00                                                         0.27
                                      20                552,497
     17.01 to 17.50                                                         0.03
                                       2                 57,569
     17.51 to 18.00                                                         0.04
                                       3                 88,788
                       ---------------------------------------------------------

         TOTAL                     5,539            $205,259,057         100.00%

<PAGE>

UNITED NATIONAL BANK HOME LOAN OWNER TRUST 1999-1
Computational Materials: Information Relating to the Collateral   (PAGE 3 OF 9)
- -------------------------------------------------------------------------------=

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                 INFORMATION  CONTAINED HEREIN WILL
                                 BE SUPERSEDED  BY THE  DESCRIPTION
                                 OF THE COLLATERAL CONTAINED IN THE
                                 PROSPECTUS SUPPLEMENT.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

CURRENT HOME LOAN PRINCIPAL BALANCES
                                                                PERCENTAGE OF
    RANGE OF CURRENT        NUMBER OF       CUT-OFF DATE         CUT-OFF DATE
     HOME LOAN AMOUNTS     HOME LOANS     PRINCIPAL BALANCE       PRINCIPAL
                                                                   BALANCE
- --------------------------------------------------------------------------------
     Up to $10,000.00             16                                    0.07%
                                                   $147,455
$10,000.01 to $20,000.00         493              8,352,335             4.07
                                                             
$20,000.01 to $30,000.00       1,366             35,645,485            17.37
                                                             
$30,000.01 to $40,000.00       1,838             65,322,611            31.82
                                                             
$40,000.01 to $50,000.00       1,007             46,099,569            22.46
                                                             
$50,000.01 to $60,000.00         592             33,583,632            16.36
                                                             
$60,000.01 to $70,000.00         129              8,458,756             4.12
                                                             
$70,000.01 to $80,000.00          66              4,939,692             2.41
                                                             
$80,000.01 to $90,000.00          32              2,709,522             1.32
                              
                          -----------------------------------------------------

         TOTAL                                  $205,259,057            100.00%
                               5,539


ORIGINAL HOME LOAN PRINCIPAL BALANCES
                                                                PERCENTAGE OF
    RANGE OF ORIGINAL       NUMBER OF       CUT-OFF DATE         CUT-OFF DATE
     HOME LOAN AMOUNTS     HOME LOANS     PRINCIPAL BALANCE       PRINCIPAL
                                                                   BALANCE
- --------------------------------------------------------------------------------
     Up to $10,000.00              13                                    0.06%
                                                    $125,680
$10,000.01 to $20,000.00          485              8,210,934             4.00
                                                              
$20,000.01 to $30,000.00        1,367             35,565,503            17.33
                                                              
$30,000.01 to $40,000.00        1,835             65,117,625            31.72
                                                              
$40,000.01 to $50,000.00        1,015             46,344,108            22.58
                                                              
$50,000.01 to $60,000.00          595             33,722,776            16.43
                                                              
$60,000.01 to $70,000.00          130              8,453,861             4.12
                                                              
$70,000.01 to $80,000.00           66              4,936,437             2.40
                                                              
$80,000.01 to $90,000.00           33              2,782,132             1.36
                             
                            ----------------------------------------------------

         TOTAL                  5,539           $205,259,057            100.00%

<PAGE>

- --------------------------------------------------------------------------------

COMBINED LOAN-TO-VALUE RATIOS
                                                                PERCENTAGE OF
   RANGE OF COMBINED       NUMBER OF HOME     CUT-OFF DATE       CUT-OFF DATE
 LOAN-TO-VALUE RATIOS (%)  HOME LOANS       PRINCIPAL BALANCE     PRINCIPAL
                                                                   BALANCE
- --------------------------------------------------------------------------------
           Up to 80.00                 90           $2,957,892           1.42%
                                         
        80.01 to 85.00                 54            1,739,311           0.85
                                                                
        85.01 to 90.00                 92            2,793,656           1.36
                                                                
        90.01 to 95.00                167            5,772,864           2.81
                                                                
       95.01 to 100.00                298           10,111,949           4.93
                                                                
      100.01 to 105.00                505           17,404,824           8.48
                                                                
      105.01 to 110.00                797           27,051,991          13.18
                                                                
      110.01 to 115.00                767           27,276,656          13.29
                                                                
      115.01 to 120.00              1,016           38,649,205          18.83
                                                                
      120.01 to 125.00              1,734           70,784,149          34.49
                                                                
      125.01 or higher                 19              716,560           0.35
                                    
                           -----------------------------------------------------

         TOTAL                      5,539         $205,259,057          100.00%
                                    



<PAGE>


THE INFORMATION COINTAINED HEREIN WILL BE SUPERSEDED BY THE DESCRIPTION OF THE
COLLATERAL CONTAINED IN THE PROSPECTUS SUPPLEMENT.


ORIGINAL TERM TO MATURITY
                                                                PERCENTAGE OF
     ORIGINAL TERM          NUMBER OF       CUT-OFF DATE         CUT-OFF DATE
TO MATURITY (IN MONTHS)    HOME LOANS     PRINCIPAL BALANCE       PRINCIPAL
                                                                   BALANCE
- --------------------------------------------------------------------------------
          0 to 60                 36                                 0.34%
                                               $698,834
        61 to 120                342          9,125,755               4.45
                                                         
       121 to 180              1,356         45,605,008              22.22
                                                         
       181 to 240              1,556         56,990,260              27.77
                                                         
       241 to 300              2,249         92,839,200              45.23
                            
                       ----------------------------------------------------

    TOTAL                      5,539       $205,259,057            100.00%
                                    


REMAINING TERM TO MATURITY
                                                                   PERCENTAGE OF
     REMAINING TERM        NUMBER OF           CUT-OFF DATE         CUT-OFF DATE
TO MATURITY (IN MONTHS)   HOME LOANS         PRINCIPAL BALANCE       PRINCIPAL
                                                                      BALANCE
- --------------------------------------------------------------------------------
               0 to 48            2                                     0.03%
                                                   $62,591
              49 to 60           34                636,243               0.31
                                                             
             61 to 120          342              9,125,755               4.45
                                                             
            121 to 180        1,356             45,605,008              22.22
                                                             
            181 to 240        1,556             56,990,260              27.77
                                                             
            241 to 300        2,249             92,839,200              45.23
                           
                         -----------------------------------------------------

         TOTAL                5,539           $205,259,057            100.00%
                              


DELINQUENCY STATUS
                                                                   PERCENTAGE OF
                            NUMBER             CUT-OFF DATE         CUT-OFF DATE
    DELINQUENCY STATUS    HOME LOANS         PRINCIPAL BALANCE       PRINCIPAL
                                                                      BALANCE
- --------------------------------------------------------------------------------
               Current        5,485                                    99.04%
                                              $203,291,935
         30 to 59 days           35              1,234,555              0.60
                                                              
         60 to 89 days           12                506,269              0.25
                                                              
  Greater than 90 days            7                226,298               0.11
                              
                          ----------------------------------------------------

         TOTAL                5,539           $205,259,057            100.00%



<PAGE>


GEOGRAPHIC DISTRIBUTION OF MORTGAGED PROPERTIES
                                                          PERCENTAGE OF
                  NUMBER OF           CUT-OFF DATE         CUT-OFF DATE
   STATE         HOME LOANS         PRINCIPAL BALANCE       PRINCIPAL
                                                             BALANCE
- --------------------------------------------------------------------------
Alabama                     156          $5,643,277.62              2.75%
Alaska                       30              1,176,170               0.57
Arizona                     326             11,338,999               5.52
Arkansas                     41              1,393,781               0.68
California                1,162             45,875,135              22.35
Colorado                    179              6,634,003               3.23
Connecticut                  80              2,948,243               1.44
Delaware                      7                294,321               0.14
Florida                     688             25,353,074              12.35
Georgia                     160              6,111,120               2.98
Idaho                        53              1,992,050               0.97
Illinois                    202              6,923,881               3.37
Indiana                     141              5,377,437               2.62
Iowa                         28              1,023,926               0.50
Kansas                       64              2,330,104               1.14
Kentucky                     89              3,274,834               1.60
Louisiana                    86              3,309,736               1.61
Maine                        22                809,211               0.39
Maryland                     16                747,999               0.36
Massachusetts                88              2,948,177               1.44
Michigan                    107              3,755,601               1.83
Minnesota                   159              6,109,338               2.98
Mississippi                  20                798,790               0.39
Missouri                     43              1,402,898               0.68
Montana                       8                313,068               0.15
Nebraska                     64              2,490,540               1.21
Nevada                      147              5,454,853               2.66
New Hampshire                11                450,092               0.22
New Jersey                   19                728,560               0.35
New Mexico                   88              3,557,827               1.73
New York                     53              2,057,854               1.00
North Carolina               85              3,021,279               1.47
North Dakota                 21                758,992               0.37
Ohio                         91              2,490,562               1.21
Oklahoma                    140              5,030,232               2.45
Oregon                      136              5,223,960               2.55
Pennsylvania                197              6,802,115               3.31
Rhode Island                  3                157,323               0.08
South Carolina               45              1,661,395               0.81
South Dakota                 24                964,333               0.47
Tennessee                    10                347,223               0.17
Texas                        44              1,514,511               0.74
Utah                         63              2,209,415               1.08
Virginia                     72              2,420,058               1.18
Washington                  162              6,021,774               2.93
West Virginia                 3                 87,252               0.04
Wisconsin                    92              3,388,555               1.65
Wyoming                      14                535,174               0.26
                      
                ---------------------------------------------------------
                                                            
         TOTAL            5,539           $205,259,057            100.00%
                      



<PAGE>

PROPERTY TYPE
                                                                   PERCENTAGE OF
                           NUMBER OF           CUT-OFF DATE         CUT-OFF DATE
     PROPERTY TYPE        HOME LOANS         PRINCIPAL BALANCE       PRINCIPAL
                                                                      BALANCE
- --------------------------------------------------------------------------------
Single Family                 5,250                                    95.33%
                                                  $195,670,800
Condominium                     223              7,283,524             3.55
                                                                
Multifamily                      30                984,002             0.48
                                                                     
Manufactured Housing             21                778,419             0.38
                                                                     
Two Family                       15                542,312             0.26
                                          
                    ------------------------------------------------------------

         TOTAL                 5,539           $205,259,057           100.00%
                                        


LOAN PURPOSE
                                                              PERCENTAGE OF
                          NUMBER OF       CUT-OFF DATE         CUT-OFF DATE
        PURPOSE          HOME LOANS     PRINCIPAL BALANCE       PRINCIPAL
                                                                 BALANCE
- ----------------------------------------------------------------------------
Debt Consolidation           5,515       $204,299,887             88.68%
Home Improvement                23            934,244             10.86
Refinance / Cash Out             1             24,926              0.46
                              
                       --------------------------------------------------

         TOTAL               5,539       $205,259,057            100.00%
                                         


LIEN POSITION
                                                                  PERCENTAGE OF
                          NUMBER OF           CUT-OFF DATE         CUT-OFF DATE
     LIEN POSITION       HOME LOANS         PRINCIPAL BALANCE       PRINCIPAL
                                                                     BALANCE
- --------------------------------------------------------------------------------
First Lien                  29                                        0.51%
                                           $1,039,001
Junior Lien                5,510          204,220,056                99.49
                 ---------------------------------------------------------------
         TOTAL           5,539           $205,259,057               100.00%
                         

<PAGE>



OCCUPANCY TYPE
                                                                   PERCENTAGE OF
                           NUMBER OF           CUT-OFF DATE         CUT-OFF DATE
     OCCUPANCY TYPE       HOME LOANS         PRINCIPAL BALANCE       PRINCIPAL
                                                                      BALANCE
- --------------------------------------------------------------------------------
Owner Occupied                  5,538                                  99.99%
                                                $205,239,140  
Non-Owner Occupied                  1                 19,917            0.01
                                   
                       ---------------------------------------------------------

         TOTAL                  5,539           $205,259,057          100.00%
                                     

DEBT-TO-INCOME RATIO
                                                             PERCENTAGE OF
                            NUMBER OF    CUT-OFF DATE         CUT-OFF DATE
 DEBT-TO-INCOME RATIO (%)  HOME LOANS  PRINCIPAL BALANCE       PRINCIPAL
                                                                BALANCE
- -----------------------------------------------------------------------------
      5.01 to 10.00                4                             0.06%
                                            $120,915
     10.01 to 15.00                9         303,939             0.15
                                                     
     15.01 to 20.00               95       3,281,211             1.60
                                                     
     20.01 to 25.00              363      12,335,214             6.01
                                                     
     25.01 to 30.00              732      25,865,439            12.60
                                                     
     30.01 to 35.00            1,205      42,801,588            20.85
                                                     
     35.01 to 40.00            1,499      55,016,467            26.80
                                                     
     40.01 to 45.00            1,421      56,257,450            27.41
                                                     
     45.01 to 50.00              205       9,066,543             4.42
                                                     
     50.01 to 55.00                5         175,334             0.09
                                                     
     55.01 to 60.00                1          34,956             0.02
                             
                          ----------------------------------------------

         TOTAL                 5,539    $205,259,057            100.00%




<PAGE>

CREDIT SCORES
                                                                PERCENTAGE OF
        RANGE OF         NUMBER             CUT-OFF DATE         CUT-OFF DATE
     CREDIT SCORES     HOME LOANS         PRINCIPAL BALANCE       PRINCIPAL
                                                                   BALANCE
- --------------------------------------------------------------------------------
       Up to 399                    1                                     0.02%
                                                     $33,721
       620 to 639                  16                481,443             0.23
                                                             
       640 to 659               1,093             35,406,374            17.25
                                                             
       660 to 679               1,492             56,515,085            27.53
                                                             
       680 to 699               1,243             47,497,392            23.14
                                                             
       700 to 719                 905             35,168,653            17.13
                                                             
       720 to 739                 468             17,826,113             8.68
                                                             
       740 to 759                 187              7,063,191             3.44
                                                             
       760 to 779                  98              3,844,055             1.87
                                                             
       780 to 799                  32              1,239,658             0.60
                                                             
       800 or higher                4                183,371             0.09
                             
                       ---------------------------------------------------------

         TOTAL                  5,539           $205,259,057            100.00%


<PAGE>

<TABLE>
<CAPTION>
TRANSACTION SUMMARY (1), (2), (3)

- ------------------------- ------------ -------------- ----------- ----------- ------------ ----------- ----------------------
                                         ORIGINAL      PERCENT    AVG. LIFE   PRINCIPAL    PRINCIPAL         EXPECTED
OFFERED                    OFFERED/      PRINCIPAL     OF POOL      TO MTY      LOCKOUT      WINDOW           RATINGS
SECURITIES                 RETAINED       BALANCE      BALANCE     (YEARS)     (MONTHS)     (MONTHS)     (S&P / MOODY'S /
                                                                                                              FITCH )
- ------------------------- ------------ -------------- ----------- ----------- ------------ ----------- ----------------------
<S>                       <C>           <C>              <C>        <C>         <C>          <C>          <C>          
CLASS A NOTES               OFFERED     $112,893,000     55.0%      2.60        NONE         272            AAA/Aaa/AAA
Class A-IO Certificates    Retained         Notional    100.0%      (1)          (1)         (1)               (1)
CLASS M-1 NOTES             OFFERED      $14,368,000      7.0%      8.79         48          224             AA/AA2/AA
CLASS M-2 NOTES             OFFERED      $14,368,000      7.0%      8.79         48          224              A/A2/A
Class B-1 Certificates     Retained      $24,631,000     12.0%      (1)          (1)         (1)               (1)
Class B-2 Certificates     Retained       $6,158,000      3.0%      (1)          (1)         (1)               (1)
Class B-3 Certificates     Retained       $4,105,000      2.0%      (1)          (1)         (1)               (1)
Class B-4 Certificates     Retained      $28,737,000     14.0%      (1)          (1)         (1)               (1)
Residual Certificates      Retained         Notional    100.0%      (1)          (1)         (1)               (1)
- ------------------------- ------------ -------------- ----------- ----------- ------------ ----------- ----------------------
</TABLE>

NOTE:    (1)      The Certificates are not being offered hereby.
         (2)      100%  Prepayment  Assumption:  0.0%  CPR in  month  1,  and an
                  additional  1.0714% per annum in each month  thereafter  until
                  month 15. On and after month 15, 15.0% CPR
         (3)      The Transaction will be priced to maturity.




<TABLE>
<CAPTION>
CLASS A (TO MATURITY)
- -------------------------------------------------------------------------------------------------------------------
% OF PREPAYMENT ASSUMPTION                            0%         50%        75%        100%       125%        150%
- -------------------------------------------------------------------------------------------------------------------
<S>                                                <C>          <C>        <C>         <C>        <C>         <C> 
AVERAGE LIFE (YEARS)                               10.07        4.28       3.24        2.60       2.16        1.80
MODIFIED DURATION (YEARS)                           6.52        3.28       2.59        2.14       1.82        1.55
FIRST PRINCIPAL PAYMENT                          4/25/99     4/25/99    4/25/99     4/25/99    4/25/99     4/25/99
LAST PRINCIPAL PAYMENT                          11/25/21    11/25/21   11/25/21    11/25/21   11/25/21    11/25/21
PRINCIPAL LOCKOUT (MONTHS)                          None        None       None        NONE       None        None
PRINCIPAL WINDOW (MONTHS)                            272         272        272         272        272         272
ILLUSTRATIVE YIELD (30/360)                       7.330%      7.259%     7.220%      7.182%     7.144%      7.100%
- -------------------------------------------------------------------------------------------------------------------

CLASS A (TO 5% CLEAN-UP CALL)
- -------------------------------------------------------------------------------------------------------------------
% OF PREPAYMENT ASSUMPTION                            0%         50%        75%        100%       125%        150%
- -------------------------------------------------------------------------------------------------------------------
AVERAGE LIFE (YEARS)                               10.07        4.27       3.22        2.57       2.13        1.77
MODIFIED DURATION (YEARS)                           6.52        3.28       2.58        2.13       1.81        1.54
FIRST PRINCIPAL PAYMENT                          4/25/99     4/25/99    4/25/99     4/25/99    4/25/99     4/25/99
LAST PRINCIPAL PAYMENT                           5/25/21     3/25/19    8/25/16    10/25/13    9/25/11    12/25/09
PRINCIPAL LOCKOUT (MONTHS)                          None        None       None        NONE       None        None
PRINCIPAL WINDOW (MONTHS)                            266         240        209         175        150         129
ILLUSTRATIVE YIELD (30/360)                       7.954%      8.098%     8.203%      8.321%     8.449%      8.538%
- -------------------------------------------------------------------------------------------------------------------
</TABLE>


<PAGE>


<TABLE>
<CAPTION>

CLASS M-1 (TO MATURITY)
- -------------------------------------------------------------------------------------------------------------------
% OF PREPAYMENT ASSUMPTION                            0%         50%        75%        100%       125%        150%
- -------------------------------------------------------------------------------------------------------------------
<S>                                                <C>         <C>        <C>          <C>        <C>         <C> 
AVERAGE LIFE (YEARS)                               19.40       13.13      10.67        8.79       7.37        6.54
MODIFIED DURATION (YEARS)                           9.73        7.74       6.72        5.85       5.14        4.74
FIRST PRINCIPAL PAYMENT                         12/25/13     4/25/06    6/25/04     4/25/03    8/25/02    12/25/02
LAST PRINCIPAL PAYMENT                          11/25/21    11/25/21   11/25/21    11/25/21   11/25/21    11/25/21
PRINCIPAL LOCKOUT (MONTHS)                           176          84         62          48         40          44
PRINCIPAL WINDOW (MONTHS)                             96         188        210         224        232         228
ILLUSTRATIVE YIELD (30/360)                       7.954%      8.100%     8.209%      8.334%     8.468%      8.562%
- -------------------------------------------------------------------------------------------------------------------

CLASS M-1 (TO 5% CLEAN-UP CALL)
- -------------------------------------------------------------------------------------------------------------------
% OF PREPAYMENT ASSUMPTION                            0%         50%        75%        100%       125%        150%
- -------------------------------------------------------------------------------------------------------------------
AVERAGE LIFE (YEARS)                               19.37       13.00      10.43        8.48       7.07        6.25
MODIFIED DURATION (YEARS)                           9.73        7.71       6.67        5.78       5.06        4.65
FIRST PRINCIPAL PAYMENT                         12/25/13     4/25/06    6/25/04     4/25/03    8/25/02    12/25/02
LAST PRINCIPAL PAYMENT                           5/25/21     3/25/19    8/25/16    10/25/13    9/25/11    12/25/09
PRINCIPAL LOCKOUT (MONTHS)                           176          84         62          48         40          44
PRINCIPAL WINDOW (MONTHS)                             90         156        147         127        110          85
ILLUSTRATIVE YIELD (30/360)                       7.954%      8.100%     8.209%      8.334%     8.468%      8.562%
- -------------------------------------------------------------------------------------------------------------------



CLASS M-2 (TO MATURITY)
- -------------------------------------------------------------------------------------------------------------------
% OF PREPAYMENT ASSUMPTION                            0%         50%        75%        100%       125%        150%
- -------------------------------------------------------------------------------------------------------------------
AVERAGE LIFE (YEARS)                               19.40       13.13      10.67        8.79       7.37        6.34
MODIFIED DURATION (YEARS)                           9.37        7.48       6.50        5.66       4.97        4.44
FIRST PRINCIPAL PAYMENT                         12/25/13     4/25/06    6/25/04     4/25/03    8/25/02     7/25/02
LAST PRINCIPAL PAYMENT                          11/25/21    11/25/21   11/25/21    11/25/21   11/25/21    11/25/21
PRINCIPAL LOCKOUT (MONTHS)                           176          84         62          48         40          39
PRINCIPAL WINDOW (MONTHS)                             96         188        210         224        232         228
ILLUSTRATIVE YIELD (30/360)                       8.708%      9.044%     9.292%      9.571%     9.874%     10.167%
- -------------------------------------------------------------------------------------------------------------------

CLASS M-2 (TO 5% CLEAN-UP CALL)
- -------------------------------------------------------------------------------------------------------------------
% OF PREPAYMENT ASSUMPTION                            0%         50%        75%        100%       125%        150%
- -------------------------------------------------------------------------------------------------------------------
AVERAGE LIFE (YEARS)                               19.37       13.00      10.13        8.48       7.07        6.05
MODIFIED DURATION (YEARS)                           9.37        7.46       6.46        5.60       4.90        4.37
FIRST PRINCIPAL PAYMENT                         12/25/13     4/25/06    6/25/04     4/25/03    8/25/02     7/25/02
LAST PRINCIPAL PAYMENT                           5/25/21     3/25/19    8/25/16    10/25/13    9/25/11    12/25/09
PRINCIPAL LOCKOUT (MONTHS)                           176          84         62          48         40          39
PRINCIPAL WINDOW (MONTHS)                             90         156        147         127        110          90
ILLUSTRATIVE YIELD (30/360)                       8.708%      9.049%     9.305%      9.599%     9.914%     10.220%
- -------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>




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