<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 PORTFOLIO
       
<S>                                            <C>
<PERIOD-TYPE>                                  3-MOS
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-START>                                 JAN-1-1998
<PERIOD-END>                                   MAR-31-1998
<INVESTMENTS-AT-COST>                                          48,084,478
<INVESTMENTS-AT-VALUE>                                         60,824,312
<RECEIVABLES>                                                     314,786
<ASSETS-OTHER>                                                          0
<OTHER-ITEMS-ASSETS>                                                    0
<TOTAL-ASSETS>                                                 61,139,098
<PAYABLE-FOR-SECURITIES>                                          314,786
<SENIOR-LONG-TERM-DEBT>                                                 0
<OTHER-ITEMS-LIABILITIES>                                           7,925
<TOTAL-LIABILITIES>                                               322,711
<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>                                                   60,816,387
<DIVIDEND-INCOME>                                                       0
<INTEREST-INCOME>                                                       0
<OTHER-INCOME>                                                          0
<EXPENSES-NET>                                                     11,461
<NET-INVESTMENT-INCOME>                                          (11,461)
<REALIZED-GAINS-CURRENT>                                          766,418
<APPREC-INCREASE-CURRENT>                                       5,223,548
<NET-CHANGE-FROM-OPS>                                           5,978,505
<EQUALIZATION>                                                          0
<DISTRIBUTIONS-OF-INCOME>                                               0
<DISTRIBUTIONS-OF-GAINS>                                                0
<DISTRIBUTIONS-OTHER>                                                   0
<NUMBER-OF-SHARES-SOLD>                                           274,023
<NUMBER-OF-SHARES-REDEEMED>                                      (90,655)
<SHARES-REINVESTED>                                                     0
<NET-CHANGE-IN-ASSETS>                                          8,948,378
<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>                                           54,723,325
<PER-SHARE-NAV-BEGIN>                                               14.91
<PER-SHARE-NII>                                                      0.00
<PER-SHARE-GAIN-APPREC>                                              1.70
<PER-SHARE-DIVIDEND>                                                    0
<PER-SHARE-DISTRIBUTIONS>                                               0
<RETURNS-OF-CAPITAL>                                                    0
<PER-SHARE-NAV-END>                                                 16.61
<EXPENSE-RATIO>                                                      0.08
<AVG-DEBT-OUTSTANDING>                                                  0
<AVG-DEBT-PER-SHARE>                                                    0
        

</TABLE>