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<PAGE> PAGE 2
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<PAGE> PAGE 3
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SIGNATURE JAMES O.YOST
TITLE ASSISTANT TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FINANCIAL STATEMENTS OF MFS GOVERNMENT
MORTGAGE FUND CLASS A AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER>001
<NAME> MFS GOVERNMENT MORTGAGE FUND CLASS A
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> JUL-31-1995
<PERIOD-END> JUL-31-1995
<INVESTMENTS-AT-COST> 1,353,250,045
<INVESTMENTS-AT-VALUE> 1,355,622,211
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<ASSETS-OTHER> 19,877
<OTHER-ITEMS-ASSETS> 157,067
<TOTAL-ASSETS> 1,369,441,363
<PAYABLE-FOR-SECURITIES> 20,134,375
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3,254,191
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<SHARES-COMMON-STOCK> 80,276,379
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<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 127,510,438
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<NET-ASSETS> (1,346,052,797)
<DIVIDEND-INCOME> 0
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<OTHER-INCOME> 0
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<NET-INVESTMENT-INCOME> (94,537,796)
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FINANCIAL STATEMENTS OF MFS GOVERNMENT
MORTGAGE FUND CLASS B AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER>002
<NAME> MFS GOVERNMENT MORTGAGE FUND CLASS B
<S> <C>
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<FISCAL-YEAR-END> JUL-31-1995
<PERIOD-END> JUL-31-1995
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</TABLE>
