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<PAGE> PAGE 8
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<PAGE> PAGE 12
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<PAGE> PAGE 13
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<PAGE> PAGE 14
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<PAGE> PAGE 15
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<PAGE> PAGE 16
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<PAGE> PAGE 18
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<PAGE> PAGE 19
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<PAGE> PAGE 20
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070 H020300 N
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070 I020300 N
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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 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
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<PAGE> PAGE 43
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<PAGE> PAGE 44
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<PAGE> PAGE 45
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<PAGE> PAGE 46
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<PAGE> PAGE 47
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<PAGE> PAGE 48
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<PAGE> PAGE 49
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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
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<PAGE> PAGE 57
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015 C010938 BRATISLAVA
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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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<PAGE> PAGE 62
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<PAGE> PAGE 63
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<PAGE> PAGE 64
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<PAGE> PAGE 65
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<PAGE> PAGE 66
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<PAGE> PAGE 67
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<PAGE> PAGE 68
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<PAGE> PAGE 69
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<PAGE> PAGE 70
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<PAGE> PAGE 71
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<PAGE> PAGE 72
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<S> <C>
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. SMALL CAP GROWTH STOCK FUND, 9/30/99 FINANCIAL STATEMENTS CLASS B.
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
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<NUMBER> 022
<NAME> SMALL CAP GROWTH STOCK FUND CLASS B
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</TABLE>
<TABLE> <S> <C>
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. INTERNATIONAL EQUITY FUND, 9/30/99 FINANCIAL STATEMENTS CLASS A.
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
<SERIES>
<NUMBER> 031
<NAME> INTERNATIONAL EQUITY FUND CLASS A
<S> <C>
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<TABLE> <S> <C>
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. INTERNATIONAL EQUITY FUND, 9/30/99 FINANCIAL STATEMENTS CLASS B.
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
<SERIES>
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<NAME> INTERNATIONAL EQUITY FUND CLASS B
<S> <C>
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<PERIOD-END> SEP-30-1999
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. INDEX 400 STOCK FUND, 9/30/99 FINANCIAL STATEMENTS CLASS A
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
<SERIES>
<NUMBER> 041
<NAME> INDEX 400 STOCK FUND CLASS A
<S> <C>
<PERIOD-TYPE> OTHER
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-START> JUL-12-1999
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. INDEX 400 STOCK FUND, 9/30/99 FINANCIAL STATEMENTS CLASS B
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS, INC.
<SERIES>
<NUMBER> 042
<NAME> INDEX 400 STOCK FUND CLASS B
<S> <C>
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<PERIOD-START> JUL-12-1999
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. GROWTH STOCK FUND, 9/30/99 FINANCIAL STATEMENTS CLASS A
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
<SERIES>
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<NAME> GROWTH STOCK FUND CLASS A
<S> <C>
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</TABLE>
<TABLE> <S> <C>
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. GROWTH STOCK FUND, 9/30/99 FINANCIAL STATEMENTS CLASS B
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
<SERIES>
<NUMBER> 052
<NAME> GROWTH STOCK FUND CLASS B
<S> <C>
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. GROWTH AND INCOME STOCK FUND, 9/30/99 FINANCIAL STATEMENTS CLASS A
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
<SERIES>
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<NAME> GROWTH AND INCOME STOCK FUND CLASS A
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. GROWTH AND INCOME STOCK FUND, 9/30/99 FINANCIAL STATEMENTS CLASS B
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<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
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<NAME> GROWTH AND INCOME STOCK FUND CLASS B
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. INDEX 500 STOCK FUND, 9/30/99 FINANCIAL STATEMENTS CLASS A
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<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
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<NAME> INDEX 500 STOCK FUND CLASS A
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<TABLE> <S> <C>
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. INDEX 500 STOCK FUND, 9/30/99 FINANCIAL STATEMENTS CLASS B
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
<SERIES>
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<NAME> INDEX 500 STOCK FUND CLASS B
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</TABLE>
<TABLE> <S> <C>
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. ASSET ALLOCATION FUND, 9/30/99 FINANCIAL STATEMENTS CLASS A
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
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<NAME> ASSET ALLOCATION FUND CLASS A
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<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. ASSET ALLOCATION FUND, 9/30/99 FINANCIAL STATEMENTS CLASS B
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
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<NAME> ASSET ALLOCATION FUND CLASS B
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</TABLE>
<TABLE> <S> <C>
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. HIGH YIELD BOND FUND, 9/30/99 FINANCIAL STATEMENTS CLASS A
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
<SERIES>
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<NAME> HIGH YIELD BOND FUND CLASS A
<S> <C>
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</TABLE>
<TABLE> <S> <C>
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. HIGH YIELD BOND FUND, 9/30/99 FINANCIAL INFORMATION CLASS B
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
<SERIES>
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<NAME> HIGH YIELD BOND FUND CLASS B
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<TABLE> <S> <C>
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. MUNICIPAL BOND FUND, 9/30/99 FINANCIAL STATEMENTS CLASS A
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<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. MUNICIPAL BOND FUND, 9/30/99 FINANCIAL STATEMENTS CLASS B
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<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
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<NAME> MUNICIPAL BOND FUND CLASS B
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. SELECT BOND FUND, 9/30/99 FINANCIAL STATEMENTS CLASS A
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<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
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<NAME> SELECT BOND FUND CLASS A
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<TABLE> <S> <C>
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MASON STREET
FUNDS, INC. SELECT BOND FUND, 9/30/99 FINANCIAL STATEMENTS CLASS B
</LEGEND>
<CIK> 0001023744
<NAME> MASON STREET FUNDS INC.
<SERIES>
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<NAME> SELECT BOND FUND CLASS B
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