<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000811159
<NAME> WARBURG PINCUS CAPITAL APPRECIATION FUND
<SERIES>
<NUMBER> 001
<NAME> COMMON
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-END> APR-30-2000
<INVESTMENTS-AT-COST> 1056330566
<INVESTMENTS-AT-VALUE> 1510983782
<RECEIVABLES> 6390327
<ASSETS-OTHER> 38149
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1517412258
<PAYABLE-FOR-SECURITIES> 27893908
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1538527
<TOTAL-LIABILITIES> 29432435
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 880144621
<SHARES-COMMON-STOCK> 47341622
<SHARES-COMMON-PRIOR> 38948941
<ACCUMULATED-NII-CURRENT> (1857546)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 155039532
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 454653216
<NET-ASSETS> 1487979823
<DIVIDEND-INCOME> 2156109
<INTEREST-INCOME> 2418042
<OTHER-INCOME> 0
<EXPENSES-NET> (6431697)
<NET-INVESTMENT-INCOME> (1857546)
<REALIZED-GAINS-CURRENT> 156805035
<APPREC-INCREASE-CURRENT> 168865653
<NET-CHANGE-FROM-OPS> 323813142
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (114581024)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 414896443
<NUMBER-OF-SHARES-REDEEMED> (274646798)
<SHARES-REINVESTED> 104311032
<NET-CHANGE-IN-ASSETS> 453011266
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 115546436
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 4644573
<INTEREST-EXPENSE> 1456
<GROSS-EXPENSE> 6627669
<AVERAGE-NET-ASSETS> 1334312143
<PER-SHARE-NAV-BEGIN> 25.82
<PER-SHARE-NII> (.04)
<PER-SHARE-GAIN-APPREC> 7.81
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (2.93)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 30.66
<EXPENSE-RATIO> .98
</TABLE>
