<ARTICLE> 6
<CIK> 0000811159
<NAME> WARBURG PINCUS CAPITAL APPRECIATION FUND

   <NUMBER> 001
   <NAME> COMMON CLASS

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          OCT-31-2000
<PERIOD-END>                               OCT-31-2000
<INVESTMENTS-AT-COST>                       1325162270
<INVESTMENTS-AT-VALUE>                      1685572822
<RECEIVABLES>                                 43572790
<ASSETS-OTHER>                                   90963
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              1729236575
<PAYABLE-FOR-SECURITIES>                      73310526
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      3721483
<TOTAL-LIABILITIES>                           77032009
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    1058522737
<SHARES-COMMON-STOCK>                         52937986
<SHARES-COMMON-PRIOR>                         38948941
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      233271277
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     360410552
<NET-ASSETS>                                1652204566
<DIVIDEND-INCOME>                              4629457
<INTEREST-INCOME>                              6787530
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              (14305769)
<NET-INVESTMENT-INCOME>                      (2888782)
<REALIZED-GAINS-CURRENT>                     237925562
<APPREC-INCREASE-CURRENT>                     74622990
<NET-CHANGE-FROM-OPS>                        309659770
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                   (114581024)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      755211618
<NUMBER-OF-SHARES-REDEEMED>                (434121256)
<SHARES-REINVESTED>                          104311032
<NET-CHANGE-IN-ASSETS>                       617236009
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    115546436
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                         10269516
<INTEREST-EXPENSE>                                7719
<GROSS-EXPENSE>                               14583658
<AVERAGE-NET-ASSETS>                        1467073712
<PER-SHARE-NAV-BEGIN>                            25.82
<PER-SHARE-NII>                                  (.05)
<PER-SHARE-GAIN-APPREC>                           7.72
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (2.92)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              30.57
<EXPENSE-RATIO>                                    .98