<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000797657
<NAME> BT INVESTMENT FUNDS
<SERIES>
<NUMBER> 8
<NAME> CAPITAL APPRECIATION FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-END> MAR-31-2000
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 44413470
<RECEIVABLES> 20500
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 23560
<TOTAL-ASSETS> 44457530
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<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 49836
<TOTAL-LIABILITIES> 49836
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 23993030
<SHARES-COMMON-STOCK> 2456004
<SHARES-COMMON-PRIOR> 1945242
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 5195683
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 15218981
<NET-ASSETS> 44407694
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 0
<OTHER-INCOME> 30258
<EXPENSES-NET> 116061
<NET-INVESTMENT-INCOME> (85803)
<REALIZED-GAINS-CURRENT> 5319828
<APPREC-INCREASE-CURRENT> 10271756
<NET-CHANGE-FROM-OPS> 15505781
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (7759652)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 691776
<NUMBER-OF-SHARES-REDEEMED> 383966
<SHARES-REINVESTED> (564980)
<NET-CHANGE-IN-ASSETS> 15675691
<ACCUMULATED-NII-PRIOR> (87502)
<ACCUMULATED-GAINS-PRIOR> 5319828
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 136926
<AVERAGE-NET-ASSETS> 35769268
<PER-SHARE-NAV-BEGIN> 14.77
<PER-SHARE-NII> (0.03)
<PER-SHARE-GAIN-APPREC> 7.27
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 3.93
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 18.08
<EXPENSE-RATIO> 1.25
</TABLE>
