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011 B000001 8-27864
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<PAGE> PAGE 2
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<PAGE> PAGE 3
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022 C000008 77717
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<PAGE> PAGE 4
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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
SECURITIES FUND CLASS A AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER>001
<NAME> MFS GOVERMENT SECURITIES FUND CLASS A
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> FEB-28-1996
<PERIOD-END> AUG-31-1995
<INVESTMENTS-AT-COST> 422,478,401
<INVESTMENTS-AT-VALUE> 427,799,502
<RECEIVABLES> 17,128,240
<ASSETS-OTHER> 11,592
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 444,939,334
<PAYABLE-FOR-SECURITIES> 10,070,448
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 904,450
<TOTAL-LIABILITIES> 10,974,898
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 462,347,050
<SHARES-COMMON-STOCK> 33,062,465
<SHARES-COMMON-PRIOR> 34,487,112
<ACCUMULATED-NII-CURRENT> 1,155,052
<OVERDISTRIBUTION-NII> 0
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<OVERDISTRIBUTION-GAINS> 34,858,767
<ACCUM-APPREC-OR-DEPREC> 5,321,101
<NET-ASSETS> 433,964,436
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 17,105,261
<OTHER-INCOME> 0
<EXPENSES-NET> 2,187,295
<NET-INVESTMENT-INCOME> 14,917,966
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<APPREC-INCREASE-CURRENT> 9,131,971
<NET-CHANGE-FROM-OPS> 33,262,560
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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
SECURITIES FUND CLASS B AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER>002
<NAME> MFS GOVERNMENT SECURITIES FUND CLASS B
<S> <C>
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<FISCAL-YEAR-END> FEB-28-1996
<PERIOD-END> AUG-31-1995
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</TABLE>
