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<PAGE> PAGE 12
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<PAGE> PAGE 17
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<PAGE> PAGE 19
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<PAGE> PAGE 21
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<PAGE> PAGE 22
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<PAGE> PAGE 23
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<PAGE> PAGE 24
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<PAGE> PAGE 25
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<PAGE> PAGE 26
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<PAGE> PAGE 27
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<PAGE> PAGE 28
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<PAGE> PAGE 29
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<PAGE> PAGE 30
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<PAGE> PAGE 31
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<PAGE> PAGE 32
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<PAGE> PAGE 33
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<PAGE> PAGE 34
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<PAGE> PAGE 35
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<PAGE> PAGE 36
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<PAGE> PAGE 37
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<PAGE> PAGE 38
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<PAGE> PAGE 39
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<PAGE> PAGE 40
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<PAGE> PAGE 41
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<PAGE> PAGE 42
062 L001300 0.0
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<PAGE> PAGE 43
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<PAGE> PAGE 44
028 E021400 8
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<PAGE> PAGE 45
064 B001400 N
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<PAGE> PAGE 46
074 J001400 0
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<PAGE> PAGE 47
028 G041500 409
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<PAGE> PAGE 48
048 J021500 0.000
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064 B001500 N
066 A001500 N
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068 A001500 N
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<PAGE> PAGE 49
070 J021500 N
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<PAGE> PAGE 50
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<PAGE> PAGE 51
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<PAGE> PAGE 52
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<PAGE> PAGE 53
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<PAGE> PAGE 54
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<PAGE> PAGE 55
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<PAGE> PAGE 56
074 M001700 40
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<PAGE> PAGE 57
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<PAGE> PAGE 58
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<PAGE> PAGE 59
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<PAGE> PAGE 60
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<PAGE> PAGE 61
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<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000752761
<NAME> COREFUNDS
<SERIES>
<NUMBER> 041
<NAME> CORE EQUITY CLASS A
<MULTIPLIER> 1,000
<S> <C>
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<FISCAL-YEAR-END> JUN-30-1998
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<NET-CHANGE-IN-ASSETS> 45711
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000752761
<NAME> COREFUNDS
<SERIES>
<NUMBER> 042
<NAME> CORE EQUITY CLASS B
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1998
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<INVESTMENTS-AT-COST> 441851
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<NET-CHANGE-IN-ASSETS> 45711
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<PER-SHARE-NAV-BEGIN> 23.05
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000752761
<NAME> COREFUNDS
<SERIES>
<NUMBER> 050
<NAME> INTERNATIONAL GROWTH CLASS Y
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1998
<PERIOD-START> JUL-01-1997
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<INVESTMENTS-AT-COST> 138763
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<PAID-IN-CAPITAL-COMMON> 144326
<SHARES-COMMON-STOCK> 11925
<SHARES-COMMON-PRIOR> 11085
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<OVERDISTRIBUTION-NII> 0
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<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 18321
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<DIVIDEND-INCOME> 928
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<NET-INVESTMENT-INCOME> 285
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<APPREC-INCREASE-CURRENT> (10192)
<NET-CHANGE-FROM-OPS> (7933)
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<DISTRIBUTIONS-OF-INCOME> (1958)
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<NUMBER-OF-SHARES-SOLD> 3024
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<NET-CHANGE-IN-ASSETS> (4802)
<ACCUMULATED-NII-PRIOR> 404
<ACCUMULATED-GAINS-PRIOR> 3773
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 666
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<PER-SHARE-NAV-BEGIN> 14.72
<PER-SHARE-NII> .01
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000752761
<NAME> COREFUNDS
<SERIES>
<NUMBER> 051
<NAME> INTERNATIONAL GROWTH CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1998
<PERIOD-START> JUL-01-1997
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<INVESTMENTS-AT-COST> 138763
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<PAID-IN-CAPITAL-COMMON> 144326
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<ACCUMULATED-NII-CURRENT> (1702)
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<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 18321
<NET-ASSETS> 160746
<DIVIDEND-INCOME> 928
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<EXPENSES-NET> 795
<NET-INVESTMENT-INCOME> 285
<REALIZED-GAINS-CURRENT> 1974
<APPREC-INCREASE-CURRENT> (10192)
<NET-CHANGE-FROM-OPS> (7933)
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<NUMBER-OF-SHARES-SOLD> 18
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<SHARES-REINVESTED> 9
<NET-CHANGE-IN-ASSETS> (4802)
<ACCUMULATED-NII-PRIOR> 404
<ACCUMULATED-GAINS-PRIOR> 3773
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
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<GROSS-EXPENSE> 870
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<PER-SHARE-NAV-BEGIN> 14.70
<PER-SHARE-NII> (.01)
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<PER-SHARE-NAV-END> 13.28
<EXPENSE-RATIO> 1.20
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<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000752761
<NAME> COREFUNDS
<SERIES>
<NUMBER> 052
<NAME> INTERNATIONAL GROWTH CLASS B
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 1-MO
<FISCAL-YEAR-END> JUN-30-1998
<PERIOD-START> NOV-24-1997
<PERIOD-END> DEC-31-1997
<INVESTMENTS-AT-COST> 138763
<INVESTMENTS-AT-VALUE> 157099
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<NET-CHANGE-IN-ASSETS> (4802)
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<OVERDIST-NET-GAINS-PRIOR> 0
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<GROSS-EXPENSE> 870
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<PER-SHARE-NAV-BEGIN> 13.79
<PER-SHARE-NII> (.02)
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<PER-SHARE-NAV-END> 13.28
<EXPENSE-RATIO> 2.16
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<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000752761
<NAME> COREFUNDS
<SERIES>
<NUMBER> 060
<NAME> EQUITY INDEX CLASS Y
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1998
<PERIOD-START> JUL-01-1997
<PERIOD-END> DEC-31-1997
<INVESTMENTS-AT-COST> 156692
<INVESTMENTS-AT-VALUE> 273111
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<ASSETS-OTHER> (1380)
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<TOTAL-ASSETS> 273649
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> (963)
<TOTAL-LIABILITIES> (963)
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 155794
<SHARES-COMMON-STOCK> 6629
<SHARES-COMMON-PRIOR> 6456
<ACCUMULATED-NII-CURRENT> 4
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<ACCUM-APPREC-OR-DEPREC> 116419
<NET-ASSETS> 272686
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<ACCUMULATED-GAINS-PRIOR> 3579
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 033
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<PER-SHARE-NAV-BEGIN> 37.39
<PER-SHARE-NII> .26
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<PER-SHARE-DIVIDEND> (.26)
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<PER-SHARE-NAV-END> 39.65
<EXPENSE-RATIO> .71
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<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000752761
<NAME> COREFUNDS
<SERIES>
<NUMBER> 061
<NAME> EQUITY INDEX CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1998
<PERIOD-START> JUL-01-1997
<PERIOD-END> DEC-31-1997
<INVESTMENTS-AT-COST> 156692
<INVESTMENTS-AT-VALUE> 273111
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<ASSETS-OTHER> (1380)
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<TOTAL-ASSETS> 273649
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<OTHER-ITEMS-LIABILITIES> (963)
<TOTAL-LIABILITIES> (963)
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<PAID-IN-CAPITAL-COMMON> 155794
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<NET-ASSETS> 272686
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<NET-CHANGE-IN-ASSETS> 11956
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<PER-SHARE-NII> .26
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000752761
<NAME> COREFUNDS
<SERIES>
<NUMBER> 062
<NAME> EQUITY INDEX CLASS B
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1998
<PERIOD-START> JUL-01-1997
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<INVESTMENTS-AT-COST> 156692
<INVESTMENTS-AT-VALUE> 273111
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<OTHER-ITEMS-LIABILITIES> (963)
<TOTAL-LIABILITIES> (963)
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 155794
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<GROSS-EXPENSE> 506
<AVERAGE-NET-ASSETS> 444072
<PER-SHARE-NAV-BEGIN> 39.16
<PER-SHARE-NII> .16
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<PER-SHARE-DIVIDEND> (.23)
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<PER-SHARE-NAV-END> 39.12
<EXPENSE-RATIO> 1.71
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000752761
<NAME> COREFUNDS
<SERIES>
<NUMBER> 070
<NAME> GROWTH EQUITY CLASS Y
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1998
<PERIOD-START> JUL-01-1997
<PERIOD-END> DEC-31-1997
<INVESTMENTS-AT-COST> 115887
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<OTHER-ITEMS-LIABILITIES> (198)
<TOTAL-LIABILITIES> (389)
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 107465
<SHARES-COMMON-STOCK> 9962
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