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<PAGE> PAGE 2
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<PAGE> PAGE 3
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<PAGE> PAGE 4
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<PAGE> PAGE 7
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<PAGE> PAGE 9
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SIGNATURE JAMES O. YOST
TITLE ASSISTANT TREASURER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FINANCIAL STATEMENTS OF MASSACHUSETTS
INVESTORS GROWTH STOCK FUND - CLASS A AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<NAME> MASSACHUSETTS INVESTORS GROWTH STOCK FUND - CLASS A
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
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<INVESTMENTS-AT-VALUE> 1,018,406,974
<RECEIVABLES> 15,599,278
<ASSETS-OTHER> 13,503
<OTHER-ITEMS-ASSETS> 102,505
<TOTAL-ASSETS> 1,034,122,260
<PAYABLE-FOR-SECURITIES> 8,207,735
<SENIOR-LONG-TERM-DEBT> 0
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<SHARES-COMMON-STOCK> 97,405,407
<SHARES-COMMON-PRIOR> 93,272,283
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<OVERDISTRIBUTION-GAINS> 0
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<NET-ASSETS> 1,024,685,129
<DIVIDEND-INCOME> 2,147,207
<INTEREST-INCOME> 1,332,807
<OTHER-INCOME> (68,744)
<EXPENSES-NET> 3,608,502
<NET-INVESTMENT-INCOME> (197,232)
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<NET-CHANGE-FROM-OPS> (99,707,623)
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FINANCIAL STATEMENTS OF MASSACHUSETTS
INVESTORS GROWTH STOCK FUND - CLASS B AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<NAME> MASSACHUSETTS INVESTORS GROWTH STOCK FUND - CLASS B
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
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</TABLE>
