<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the 2000
Harbor Fund Semi-Annual Report to Shareholders on Form N30-D (File No.
811-04676) and is qualified in its entirety by reference to such financial
statements.
</LEGEND>
<SERIES>
<NUMBER> 3
<NAME> HARBOR CAPITAL APPRECIATION FUND
<MULTIPLIER> 1000
<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> 6,828,364
<INVESTMENTS-AT-VALUE> 9,434,556
<RECEIVABLES> 67,222
<ASSETS-OTHER> 4
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 9,501,782
<PAYABLE-FOR-SECURITIES> 255,002
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 11,694
<TOTAL-LIABILITIES> 266,696
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 5,795,419
<SHARES-COMMON-STOCK> 175,210
<SHARES-COMMON-PRIOR> 138,218
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (1,850)
<ACCUMULATED-NET-GAINS> 835,326
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2,606,191
<NET-ASSETS> 9,235,086
<DIVIDEND-INCOME> 17,115
<INTEREST-INCOME> 7,982
<OTHER-INCOME> 0
<EXPENSES-NET> 26,947
<NET-INVESTMENT-INCOME> (1,850)
<REALIZED-GAINS-CURRENT> 844,233
<APPREC-INCREASE-CURRENT> 666,137
<NET-CHANGE-FROM-OPS> 1,508,520
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (660,216)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 38,030
<NUMBER-OF-SHARES-REDEEMED> (13,651)
<SHARES-REINVESTED> 12,613
<NET-CHANGE-IN-ASSETS> 2,750,285
<ACCUMULATED-NII-PRIOR> (2,903)
<ACCUMULATED-GAINS-PRIOR> 742,363
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 26,601
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 26,674
<AVERAGE-NET-ASSETS> 8,268,473
<PER-SHARE-NAV-BEGIN> 46.92
<PER-SHARE-NII> (0.01)
<PER-SHARE-GAIN-APPREC> 10.40
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (4.60)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 52.71
<EXPENSE-RATIO> 0.65
</TABLE>
