WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000887991
<NAME> PRUDENTIAL INDEX SERIES FUND
<SERIES>
<NUMBER> 001
<NAME> STOCK INDEX FUND (CLASS A)
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-END> SEP-30-2000
<INVESTMENTS-AT-COST> 2,050,622,830
<INVESTMENTS-AT-VALUE> 2,654,616,079
<RECEIVABLES> 16,715,767
<ASSETS-OTHER> 150,690
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2,671,482,536
<PAYABLE-FOR-SECURITIES> 465,514
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 40,602,873
<TOTAL-LIABILITIES> 41,068,387
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2,012,470,910
<SHARES-COMMON-STOCK> 81,858,608
<SHARES-COMMON-PRIOR> 71,654,227
<ACCUMULATED-NII-CURRENT> 17,285,612
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 584,853
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 600,072,774
<NET-ASSETS> 2,630,414,149
<DIVIDEND-INCOME> 25,893,606
<INTEREST-INCOME> 5,982,180
<OTHER-INCOME> 15,579
<EXPENSES-NET> 8,687,298
<NET-INVESTMENT-INCOME> 23,204,067
<REALIZED-GAINS-CURRENT> 2,368,889
<APPREC-INCREASE-CURRENT> 218,068,243
<NET-CHANGE-FROM-OPS> 243,641,199
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (22,145,767)
<DISTRIBUTIONS-OF-GAINS> (22,350,250)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2,247,574,001
<NUMBER-OF-SHARES-REDEEMED> (1,746,552,891)
<SHARES-REINVESTED> 44,452,564
<NET-CHANGE-IN-ASSETS> 744,618,856
<ACCUMULATED-NII-PRIOR> 4,218,431
<ACCUMULATED-GAINS-PRIOR> (2,657,796)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 7,109,171
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 7,189,327
<AVERAGE-NET-ASSETS> 19,055,000
<PER-SHARE-NAV-BEGIN> 31.53
<PER-SHARE-NII> 0.120
<PER-SHARE-GAIN-APPREC> 0.41
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 32.06
<EXPENSE-RATIO> 0.65
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.00
[ARTICLE] 6
[CIK] 0000887991
[NAME] PRUDENTIAL INDEX SERIES FUND
[SERIES]
[NUMBER] 002
[NAME] STOCK INDEX FUND (CLASS C)
<S> <C>
[PERIOD-TYPE] YEAR
[FISCAL-YEAR-END] SEP-30-2000
[PERIOD-END] SEP-30-2000
[INVESTMENTS-AT-COST] 2,050,622,830
[INVESTMENTS-AT-VALUE] 2,654,616,079
[RECEIVABLES] 16,715,767
[ASSETS-OTHER] 150,690
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 2,671,482,536
[PAYABLE-FOR-SECURITIES] 465,514
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 40,602,873
[TOTAL-LIABILITIES] 41,068,387
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 2,012,470,910
[SHARES-COMMON-STOCK] 81,858,608
[SHARES-COMMON-PRIOR] 71,654,227
[ACCUMULATED-NII-CURRENT] 17,285,612
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] 584,853
[OVERDISTRIBUTION-GAINS] 0
[ACCUM-APPREC-OR-DEPREC] 600,072,774
[NET-ASSETS] 2,630,414,149
[DIVIDEND-INCOME] 25,893,606
[INTEREST-INCOME] 5,982,180
[OTHER-INCOME] 15,579
[EXPENSES-NET] 8,687,298
[NET-INVESTMENT-INCOME] 23,204,067
[REALIZED-GAINS-CURRENT] 2,368,889
[APPREC-INCREASE-CURRENT] 218,068,243
[NET-CHANGE-FROM-OPS] 243,641,199
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] (22,145,767)
[DISTRIBUTIONS-OF-GAINS] (22,350,250)
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 2,247,574,001
[NUMBER-OF-SHARES-REDEEMED] (1,746,552,891)
[SHARES-REINVESTED] 44,452,564
[NET-CHANGE-IN-ASSETS] 744,618,856
[ACCUMULATED-NII-PRIOR] 4,218,431
[ACCUMULATED-GAINS-PRIOR] (2,657,796)
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 7,109,171
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 7,189,327
[AVERAGE-NET-ASSETS] 42,919,000
[PER-SHARE-NAV-BEGIN] 31.53
[PER-SHARE-NII] (0.01)
[PER-SHARE-GAIN-APPREC] 0.33
[PER-SHARE-DIVIDEND] 0.00
[PER-SHARE-DISTRIBUTIONS] 0.00
[RETURNS-OF-CAPITAL] 0.00
[PER-SHARE-NAV-END] 31.85
[EXPENSE-RATIO] 1.40
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.00
[ARTICLE] 6
[CIK] 0000887991
[NAME] PRUDENTIAL INDEX SERIES FUND
[SERIES]
[NUMBER] 002
[NAME] STOCK INDEX FUND (CLASS C)
<S> <C>
[PERIOD-TYPE] YEAR
[FISCAL-YEAR-END] SEP-30-2000
[PERIOD-END] SEP-30-2000
[INVESTMENTS-AT-COST] 2,050,622,830
[INVESTMENTS-AT-VALUE] 2,654,616,079
[RECEIVABLES] 16,715,767
[ASSETS-OTHER] 150,690
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 2,671,482,536
[PAYABLE-FOR-SECURITIES] 465,514
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 40,602,873
[TOTAL-LIABILITIES] 41,068,387
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 2,012,470,910
[SHARES-COMMON-STOCK] 81,858,608
[SHARES-COMMON-PRIOR] 71,654,227
[ACCUMULATED-NII-CURRENT] 17,285,612
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] 584,853
[OVERDISTRIBUTION-GAINS] 0
[ACCUM-APPREC-OR-DEPREC] 600,072,774
[NET-ASSETS] 2,630,414,149
[DIVIDEND-INCOME] 25,893,606
[INTEREST-INCOME] 5,982,180
[OTHER-INCOME] 15,579
[EXPENSES-NET] 8,687,298
[NET-INVESTMENT-INCOME] 23,204,067
[REALIZED-GAINS-CURRENT] 2,368,889
[APPREC-INCREASE-CURRENT] 218,068,243
[NET-CHANGE-FROM-OPS] 243,641,199
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] (22,145,767)
[DISTRIBUTIONS-OF-GAINS] (22,350,250)
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 2,247,574,001
[NUMBER-OF-SHARES-REDEEMED] (1,746,552,891)
[SHARES-REINVESTED] 44,452,564
[NET-CHANGE-IN-ASSETS] 744,618,856
[ACCUMULATED-NII-PRIOR] 4,218,431
[ACCUMULATED-GAINS-PRIOR] (2,657,796)
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 7,109,171
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 7,189,327
[AVERAGE-NET-ASSETS] 42,919,000
[PER-SHARE-NAV-BEGIN] 31.53
[PER-SHARE-NII] 0.00
[PER-SHARE-GAIN-APPREC] 0.32
[PER-SHARE-DIVIDEND] 0.00
[PER-SHARE-DISTRIBUTIONS] 0.00
[RETURNS-OF-CAPITAL] 0.00
[PER-SHARE-NAV-END] 31.85
[EXPENSE-RATIO] 1.37
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.00
[ARTICLE] 6
[CIK] 0000887991
[NAME] PRUDENTIAL INDEX SERIES FUND
[SERIES]
[NUMBER] 003
[NAME] STOCK INDEX FUND (CLASS Z)
<S> <C>
[PERIOD-TYPE] YEAR
[FISCAL-YEAR-END] SEP-30-2000
[PERIOD-END] SEP-30-2000
[INVESTMENTS-AT-COST] 2,050,622,830
[INVESTMENTS-AT-VALUE] 2,654,616,079
[RECEIVABLES] 16,715,767
[ASSETS-OTHER] 150,690
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 2,671,482,536
[PAYABLE-FOR-SECURITIES] 465,514
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 40,602,873
[TOTAL-LIABILITIES] 41,068,387
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 2,012,470,910
[SHARES-COMMON-STOCK] 81,858,608
[SHARES-COMMON-PRIOR] 71,654,227
[ACCUMULATED-NII-CURRENT] 17,285,612
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] 584,853
[OVERDISTRIBUTION-GAINS] 0
[ACCUM-APPREC-OR-DEPREC] 600,072,774
[NET-ASSETS] 2,630,414,149
[DIVIDEND-INCOME] 25,893,606
[INTEREST-INCOME] 5,982,180
[OTHER-INCOME] 15,579
[EXPENSES-NET] 8,687,298
[NET-INVESTMENT-INCOME] 23,204,067
[REALIZED-GAINS-CURRENT] 2,368,889
[APPREC-INCREASE-CURRENT] 218,068,243
[NET-CHANGE-FROM-OPS] 243,641,199
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] (22,145,767)
[DISTRIBUTIONS-OF-GAINS] (22,350,250)
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 2,247,574,001
[NUMBER-OF-SHARES-REDEEMED] (1,746,552,891)
[SHARES-REINVESTED] 44,452,564
[NET-CHANGE-IN-ASSETS] 744,618,856
[ACCUMULATED-NII-PRIOR] 4,218,431
[ACCUMULATED-GAINS-PRIOR] (2,657,796)
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 7,109,171
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 7,189,327
[AVERAGE-NET-ASSETS] 1,317,874,000
[PER-SHARE-NAV-BEGIN] 28.99
[PER-SHARE-NII] 0.33
[PER-SHARE-GAIN-APPREC] 3.53
[PER-SHARE-DIVIDEND] (0.35)
[PER-SHARE-DISTRIBUTIONS] (0.34)
[RETURNS-OF-CAPITAL] 0.00
[PER-SHARE-NAV-END] 32.16
[EXPENSE-RATIO] 0.30
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.00
[ARTICLE] 6
[CIK] 0000887991
[NAME] PRUDENTIAL INDEX SERIES FUND
[SERIES]
[NUMBER] 004
[NAME] STOCK INDEX FUND (CLASS I)
<S> <C>
[PERIOD-TYPE] YEAR
[FISCAL-YEAR-END] SEP-30-2000
[PERIOD-END] SEP-30-2000
[INVESTMENTS-AT-COST] 2,050,622,830
[INVESTMENTS-AT-VALUE] 2,654,616,079
[RECEIVABLES] 16,715,767
[ASSETS-OTHER] 150,690
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 2,671,482,536
[PAYABLE-FOR-SECURITIES] 465,514
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 40,602,873
[TOTAL-LIABILITIES] 41,068,387
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 2,012,470,910
[SHARES-COMMON-STOCK] 81,858,608
[SHARES-COMMON-PRIOR] 71,654,227
[ACCUMULATED-NII-CURRENT] 17,285,612
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] 584,853
[OVERDISTRIBUTION-GAINS] 0
[ACCUM-APPREC-OR-DEPREC] 600,072,774
[NET-ASSETS] 2,630,414,149
[DIVIDEND-INCOME] 25,893,606
[INTEREST-INCOME] 5,982,180
[OTHER-INCOME] 15,579
[EXPENSES-NET] 8,687,298
[NET-INVESTMENT-INCOME] 23,204,067
[REALIZED-GAINS-CURRENT] 2,368,889
[APPREC-INCREASE-CURRENT] 218,068,243
[NET-CHANGE-FROM-OPS] 243,641,199
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] (22,145,767)
[DISTRIBUTIONS-OF-GAINS] (22,350,250)
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 2,247,574,001
[NUMBER-OF-SHARES-REDEEMED] (1,746,552,891)
[SHARES-REINVESTED] 44,452,564
[NET-CHANGE-IN-ASSETS] 744,618,856
[ACCUMULATED-NII-PRIOR] 4,218,431
[ACCUMULATED-GAINS-PRIOR] (2,657,796)
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 7,109,171
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 7,189,327
[AVERAGE-NET-ASSETS] 980,790,000
[PER-SHARE-NAV-BEGIN] 28.96
[PER-SHARE-NII] 0.29
[PER-SHARE-GAIN-APPREC] 3.53
[PER-SHARE-DIVIDEND] (0.32)
[PER-SHARE-DISTRIBUTIONS] (0.34)
[RETURNS-OF-CAPITAL] 0.00
[PER-SHARE-NAV-END] 32.12
[EXPENSE-RATIO] 0.40
[AVG-DEBT-OUTSTANDING] 0.00
[AVG-DEBT-PER-SHARE] 0.00
</TABLE>
