<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary information from the The 59 Wall Tax-Efficient
Equity Fund semi-annual Report, dated April 30, 2000, and is qualified in its
entirety by reference to such report.
</LEGEND>
<CIK> 0000865898
<NAME> THE 59 WALL STREET FUND, INC.
<SERIES>
<NUMBER> 9
<NAME> THE 59 WALL STREET TAX-EFFICIENT EQUITY FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-START> NOV-01-1999
<PERIOD-END> APR-30-2000
<INVESTMENTS-AT-COST> 42,095,264
<INVESTMENTS-AT-VALUE> 47,664,082
<RECEIVABLES> 194,993
<ASSETS-OTHER> 635
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 47,859,710
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 154,426
<TOTAL-LIABILITIES> 154,426
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 37,561,965
<SHARES-COMMON-STOCK> 3,378,938
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (56,538)
<ACCUMULATED-NET-GAINS> 4,631,039
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 5,568,818
<NET-ASSETS> 47,705,284
<DIVIDEND-INCOME> 181,856
<INTEREST-INCOME> 16,305
<OTHER-INCOME> 0
<EXPENSES-NET> 254,699
<NET-INVESTMENT-INCOME> (56,538)
<REALIZED-GAINS-CURRENT> 4,660,304
<APPREC-INCREASE-CURRENT> (720,991)
<NET-CHANGE-FROM-OPS> 3,882,775
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 9,869,963
<NUMBER-OF-SHARES-REDEEMED> 2,545,264
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 11,207,474
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (29,265)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 138,051
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 254,699
<AVERAGE-NET-ASSETS> 42,615,443
<PER-SHARE-NAV-BEGIN> 12.80
<PER-SHARE-NII> (0.02)
<PER-SHARE-GAIN-APPREC> 1.34
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 14.12
<EXPENSE-RATIO> 1.20
</TABLE>
