SUPPLEMENT TO THE PROSPECTUS
DATED JUNE 30, 1998
MASON STREET FUNDS, INC.
The Prospectus is amended by replacing page 13 with the following:
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SERIES FUND PORTFOLIO PERFORMANCE
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ASSUMING CLASS B SHARES TOTAL FUND OPERATING EXPENSES
AND REDEMPTION AT THE END OF THE APPLICABLE TIME PERIOD
10 Years or
Since
Portfolio (Inception Date) 1 Year 3 Years 5 Years Inception
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AGGRESSIVE GROWTH STOCK
(November 30, 1990<F1>) 43.14% 23.36% 19.45% 21.08%
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GROWTH STOCK (May 3, 1994) 40.61% 26.54% NA 22.30%
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GROWTH AND INCOME STOCK
(May 3, 1994) 36.04% 25.81% NA 21.82%
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HIGH YIELD BOND (May 3, 1994) 13.58% 14.93% NA 13.17%
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SELECT BOND (June 26, 1984) 6.08% 6.88% 5.72% 7.85%
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ASSUMING CLASS B SHARES TOTAL FUND OPERATING EXPENSES
AND NO REDEMPTION AT THE END OF THE APPLICABLE TIME PERIOD
10 Years or
Since
Portfolio (Inception Date) 1 Year 3 Years 5 Years Inception
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AGGRESSIVE GROWTH STOCK
(November 30, 1990<F1>) 47.14% 24.01% 19.55% 21.08%
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GROWTH STOCK (May 3, 1994) 44.61% 27.16% NA 22.73%
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GROWTH AND INCOME STOCK
(May 3, 1994) 40.04% 26.44% NA 22.25%
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HIGH YIELD BOND (May 3, 1994) 17.58% 15.69% NA 13.70%
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SELECT BOND (June 26, 1984) 10.08% 7.75% 5.88% 7.85%
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<F1> Includes performance of predecessor fund that was merged into the Series
Fund on May 3, 1994.
The date of this Prospectus Supplement is July 15, 1998.
