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>   BALANCED FUND

<S>                                                              <C>
<PERIOD-TYPE>                                                    3-MOS
<FISCAL-YEAR-END>                                                DEC-31-2000
<PERIOD-START>                                                   JAN-01-2000
<PERIOD-END>                                                     MAR-31-2000
<INVESTMENTS-AT-COST>                                            456,699,582
<INVESTMENTS-AT-VALUE>                                           525,363,148
<RECEIVABLES>                                                     12,360,818
<ASSETS-OTHER>                                                        24,898
<OTHER-ITEMS-ASSETS>                                                  66,599
<TOTAL-ASSETS>                                                   537,815,463
<PAYABLE-FOR-SECURITIES>                                          70,361,569
<SENIOR-LONG-TERM-DEBT>                                                    0
<OTHER-ITEMS-LIABILITIES>                                          1,879,394
<TOTAL-LIABILITIES>                                               72,240,963
<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>                                                     465,574,500
<DIVIDEND-INCOME>                                                    921,751
<INTEREST-INCOME>                                                  3,026,811
<OTHER-INCOME>                                                             0
<EXPENSES-NET>                                                       674,764
<NET-INVESTMENT-INCOME>                                            3,273,798
<REALIZED-GAINS-CURRENT>                                          12,478,522
<APPREC-INCREASE-CURRENT>                                          4,282,864
<NET-CHANGE-FROM-OPS>                                             20,049,996
<EQUALIZATION>                                                             0
<DISTRIBUTIONS-OF-INCOME>                                                  0
<DISTRIBUTIONS-OF-GAINS>                                                   0
<DISTRIBUTIONS-OTHER>                                                      0
<NUMBER-OF-SHARES-SOLD>                                               64,030
<NUMBER-OF-SHARES-REDEEMED>                                         (306,467)
<SHARES-REINVESTED>                                                        0
<NET-CHANGE-IN-ASSETS>                                             5,246,434
<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>                                             451,987,396
<PER-SHARE-NAV-BEGIN>                                                  61.21
<PER-SHARE-NII>                                                         2.02
<PER-SHARE-GAIN-APPREC>                                                 0.74
<PER-SHARE-DIVIDEND>                                                    0.00
<PER-SHARE-DISTRIBUTIONS>                                                  0
<RETURNS-OF-CAPITAL>                                                       0
<PER-SHARE-NAV-END>                                                    63.97
<EXPENSE-RATIO>                                                         0.59
[AVG-DEBT-OUTSTANDING]                                                  0.00
[AVG-DEBT-PER-SHARE]                                                       0


</TABLE>