<TABLE> <S> <C>

<ARTICLE>         6
<LEGEND>
This schedule contains summary financial information extracted from the
Statement of Assets and Liabilities, the Statement of Operations, the Statement
of Changes in Net Assets and the Per Unit Data and Ratios contained in the
financial statements of the fund to which this schedule relates and is qualified
in its entirety by reference to such financial statements.
</LEGEND>
<CIK>   0000878375
<NAME>   ABA MEMBERS/STATE STREET COLLECTIVE TRUST
<SERIES>
   <NUMBER> 0
   <NAME>   STRUCTURED PORTFOLIO SERVICE- AGGRESSIVE FUND
       
<S>                                                       <C>
<PERIOD-TYPE>                                             3-MOS
<FISCAL-YEAR-END>                                           DEC-31-1999
<PERIOD-START>                                              JAN-01-1999
<PERIOD-END>                                                MAR-31-1999
<INVESTMENTS-AT-COST>                                        57,398,850
<INVESTMENTS-AT-VALUE>                                       71,522,455
<RECEIVABLES>                                                   458,378
<ASSETS-OTHER>                                                        0
<OTHER-ITEMS-ASSETS>                                                  0
<TOTAL-ASSETS>                                               71,980,833
<PAYABLE-FOR-SECURITIES>                                        458,378
<SENIOR-LONG-TERM-DEBT>                                               0
<OTHER-ITEMS-LIABILITIES>                                             0
<TOTAL-LIABILITIES>                                             458,378
<SENIOR-EQUITY>                                                       0
<PAID-IN-CAPITAL-COMMON>                                              0
<SHARES-COMMON-STOCK>                                                 0
<SHARES-COMMON-PRIOR>                                                 0
<ACCUMULATED-NII-CURRENT>                                             0
<OVERDISTRIBUTION-NII>                                                0
<ACCUMULATED-NET-GAINS>                                               0
<OVERDISTRIBUTION-GAINS>                                              0
<ACCUM-APPREC-OR-DEPREC>                                              0
<NET-ASSETS>                                                 71,522,455
<DIVIDEND-INCOME>                                                     0
<INTEREST-INCOME>                                                     0
<OTHER-INCOME>                                                        0
<EXPENSES-NET>                                                        0
<NET-INVESTMENT-INCOME>                                               0
<REALIZED-GAINS-CURRENT>                                      1,254,856
<APPREC-INCREASE-CURRENT>                                       336,519
<NET-CHANGE-FROM-OPS>                                         1,591,375
<EQUALIZATION>                                                        0
<DISTRIBUTIONS-OF-INCOME>                                             0
<DISTRIBUTIONS-OF-GAINS>                                              0
<DISTRIBUTIONS-OTHER>                                                 0
<NUMBER-OF-SHARES-SOLD>                                         297,750
<NUMBER-OF-SHARES-REDEEMED>                                    (125,837)
<SHARES-REINVESTED>                                                   0
<NET-CHANGE-IN-ASSETS>                                        4,677,572
<ACCUMULATED-NII-PRIOR>                                               0
<ACCUMULATED-GAINS-PRIOR>                                             0
<OVERDISTRIB-NII-PRIOR>                                               0
<OVERDIST-NET-GAINS-PRIOR>                                            0
<GROSS-ADVISORY-FEES>                                                 0
<INTEREST-EXPENSE>                                                    0
<GROSS-EXPENSE>                                                       0
<AVERAGE-NET-ASSETS>                                         68,813,673
<PER-SHARE-NAV-BEGIN>                                                17.92
<PER-SHARE-NII>                                                       0.00
<PER-SHARE-GAIN-APPREC>                                               0.41
<PER-SHARE-DIVIDEND>                                                  0
<PER-SHARE-DISTRIBUTIONS>                                             0
<RETURNS-OF-CAPITAL>                                                  0
<PER-SHARE-NAV-END>                                                  18.33
<EXPENSE-RATIO>                                                       0.00
<AVG-DEBT-OUTSTANDING>                                                0
<AVG-DEBT-PER-SHARE>                                                  0
        

</TABLE>