WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<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>   AGGRESSIVE EQUITY FUND
       
<S>                                           <C>
<PERIOD-TYPE>                                 3-MOS
<FISCAL-YEAR-END>                             DEC-31-1998
<PERIOD-START>                                JAN-01-1998
<PERIOD-END>                                  MAR-31-1998
<INVESTMENTS-AT-COST>                                          256,017,112
<INVESTMENTS-AT-VALUE>                                         363,321,249
<RECEIVABLES>                                                    1,397,614
<ASSETS-OTHER>                                                      34,269
<OTHER-ITEMS-ASSETS>                                                     0
<TOTAL-ASSETS>                                                 364,753,131
<PAYABLE-FOR-SECURITIES>                                         1,378,152
<SENIOR-LONG-TERM-DEBT>                                                  0
<OTHER-ITEMS-LIABILITIES>                                        2,416,295
<TOTAL-LIABILITIES>                                              3,794,447
<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>                                                   360,958,684
<DIVIDEND-INCOME>                                                  356,371
<INTEREST-INCOME>                                                  243,697
<OTHER-INCOME>                                                           0
<EXPENSES-NET>                                                     783,055
<NET-INVESTMENT-INCOME>                                           (182,987)
<REALIZED-GAINS-CURRENT>                                        15,972,145
<APPREC-INCREASE-CURRENT>                                       28,176,113
<NET-CHANGE-FROM-OPS>                                           43,965,271
<EQUALIZATION>                                                           0
<DISTRIBUTIONS-OF-INCOME>                                                0
<DISTRIBUTIONS-OF-GAINS>                                                 0
<DISTRIBUTIONS-OTHER>                                                    0
<NUMBER-OF-SHARES-SOLD>                                             94,310
<NUMBER-OF-SHARES-REDEEMED>                                        384,386
<SHARES-REINVESTED>                                                      0
<NET-CHANGE-IN-ASSETS>                                          29,019,096
<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>                                           440,865,311
<PER-SHARE-NAV-BEGIN>                                               (48.59)
<PER-SHARE-NII>                                                      (0.03)
<PER-SHARE-GAIN-APPREC>                                               6.62
<PER-SHARE-DIVIDEND>                                                  0.00
<PER-SHARE-DISTRIBUTIONS>                                                0
<RETURNS-OF-CAPITAL>                                                     0
<PER-SHARE-NAV-END>                                                  55.18
<EXPENSE-RATIO>                                                       0.72
<AVG-DEBT-OUTSTANDING>                                                   0
<AVG-DEBT-PER-SHARE>                                                     0
        

</TABLE>