<TABLE> <S> <C>
<ARTICLE> 6
<RESTATED>
<CIK> 0000036405
<NAME> VANGUARD INDEX FUNDS
<SERIES>
<NUMBER> 041
<NAME> VANGUARD VALUE INDEX FUND - INVESTOR SHARES
<MULTIPLIER> 1000
<CURRENCY> US
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 3742508
<INVESTMENTS-AT-VALUE> 4044256
<RECEIVABLES> 389824
<ASSETS-OTHER> 2334
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 4436414
<PAYABLE-FOR-SECURITIES> 394981
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 16727
<TOTAL-LIABILITIES> 411708
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 3663964
<SHARES-COMMON-STOCK> 155678
<SHARES-COMMON-PRIOR> 147569
<ACCUMULATED-NII-CURRENT> 566
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 58808
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 301368
<NET-ASSETS> 3330493
<DIVIDEND-INCOME> 35586
<INTEREST-INCOME> 298
<OTHER-INCOME> 52
<EXPENSES-NET> 3995
<NET-INVESTMENT-INCOME> 31941
<REALIZED-GAINS-CURRENT> 67178
<APPREC-INCREASE-CURRENT> (276455)
<NET-CHANGE-FROM-OPS> (177336)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 25796
<DISTRIBUTIONS-OF-GAINS> 60724
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 32349
<NUMBER-OF-SHARES-REDEEMED> 27734
<SHARES-REINVESTED> 3494
<NET-CHANGE-IN-ASSETS> 187142
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 62323
<OVERDISTRIB-NII-PRIOR> 933
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 25
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3995
<AVERAGE-NET-ASSETS> 3337457
<PER-SHARE-NAV-BEGIN> 22.89
<PER-SHARE-NII> 0.18
<PER-SHARE-GAIN-APPREC> (1.10)
<PER-SHARE-DIVIDEND> 0.17
<PER-SHARE-DISTRIBUTIONS> 0.41
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 21.39
<EXPENSE-RATIO> 0.22
</TABLE>
