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SIGNATURE JAMES O. YOST
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<NAME> MFS SERIES TRUST V
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000200489
<NAME> MFS SERIES TRUST V
<SERIES>
<NUMBER> 011
<NAME> MFS TOTAL RETURN FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1999
<PERIOD-START> OCT-01-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 6293327593
<INVESTMENTS-AT-VALUE> 6637843737
<RECEIVABLES> 96376813
<ASSETS-OTHER> 93651
<OTHER-ITEMS-ASSETS> 56
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<PAYABLE-FOR-SECURITIES> 198241633
<SENIOR-LONG-TERM-DEBT> 0
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[AVG-DEBT-OUTSTANDING] 0
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000200489
<NAME> MFS SERIES TRUST V
<SERIES>
<NUMBER> 012
<NAME> MFS TOTAL RETURN FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1999
<PERIOD-START> OCT-01-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 6293327593
<INVESTMENTS-AT-VALUE> 6637843737
<RECEIVABLES> 96376813
<ASSETS-OTHER> 93651
<OTHER-ITEMS-ASSETS> 56
<TOTAL-ASSETS> 6734314257
<PAYABLE-FOR-SECURITIES> 198241633
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<OTHER-ITEMS-LIABILITIES> 14451702
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<PAID-IN-CAPITAL-COMMON> 5943627396
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[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000200489
<NAME> MFS SERIES TRUST V
<SERIES>
<NUMBER> 013
<NAME> MFS TOTAL RETURN FUND CLASS C
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1999
<PERIOD-START> OCT-01-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 6293327593
<INVESTMENTS-AT-VALUE> 6637843737
<RECEIVABLES> 96376813
<ASSETS-OTHER> 93651
<OTHER-ITEMS-ASSETS> 56
<TOTAL-ASSETS> 6734314257
<PAYABLE-FOR-SECURITIES> 198241633
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<ACCUMULATED-NET-GAINS> 256882445
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<INTEREST-INCOME> 92872739
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<EXPENSES-NET> (35404010)
<NET-INVESTMENT-INCOME> 97473146
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<PER-SHARE-NAV-BEGIN> 16.10
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<PER-SHARE-NAV-END> 14.79
<EXPENSE-RATIO> 1.55
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000200489
<NAME> MFS SERIES TRUST V
<SERIES>
<NUMBER> 014
<NAME> MFS TOTAL RETURN FUND CLASS I
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1999
<PERIOD-START> OCT-01-1998
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<INVESTMENTS-AT-COST> 6293327593
<INVESTMENTS-AT-VALUE> 6637843737
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<TOTAL-ASSETS> 6734314257
<PAYABLE-FOR-SECURITIES> 198241633
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<OTHER-ITEMS-LIABILITIES> 14451702
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<PAID-IN-CAPITAL-COMMON> 5943627396
<SHARES-COMMON-STOCK> 1215618
<SHARES-COMMON-PRIOR> 1078479
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (23400408)
<ACCUMULATED-NET-GAINS> 256882445
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<EXPENSES-NET> (35404010)
<NET-INVESTMENT-INCOME> 97473146
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<NUMBER-OF-SHARES-SOLD> 60369
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<NET-CHANGE-IN-ASSETS> 682181198
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 753458252
<OVERDISTRIB-NII-PRIOR> (5960193)
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<GROSS-EXPENSE> 35917225
<AVERAGE-NET-ASSETS> 6242725081
<PER-SHARE-NAV-BEGIN> 16.06
<PER-SHARE-NII> 0.29
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<PER-SHARE-DIVIDEND> (0.33)
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<PER-SHARE-NAV-END> 14.75
<EXPENSE-RATIO> 0.55
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
