<PAGE> PAGE 1
000 B000000 09/30/95
000 C000000 0000200489
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 MFS SERIES TRUST V
001 B000000 811-2031
001 C000000 6179545000
002 A000000 500 BOYLSTON STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02116
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 2
007 C010100 1
007 C020100 MFS TOTAL RETURN FUND
007 C030100 N
007 C010200 2
007 C020200 MFS RESEARCH FUND
007 C030200 N
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A00AA01 MASSACHUSETTS FINANCIAL SERVICES COMPANY
008 B00AA01 A
008 C00AA01 801-17352
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02116
011 A00AA01 MFS FUND DISTRIBUTORS, INC.
011 B00AA01 8-27864
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02116
012 A00AA01 MFS SERVICE CENTER, INC.
012 B00AA01 84-1316
012 C01AA01 BOSTON
012 C02AA01 MA
<PAGE> PAGE 2
012 C03AA01 02116
013 A00AA01 DELOITTE & TOUCHE
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02110
015 A00AA01 INVESTORS BANK & TRUST COMPANY
015 B00AA01 C
015 C01AA01 BOSTON
015 C02AA01 MA
015 C03AA01 02111
015 E01AA01 X
015 A00AA02 BANK OF NEW YORK
015 B00AA02 S
015 C01AA02 NEW YORK
015 C02AA02 NY
015 C03AA02 10286
015 E01AA02 X
015 A00AA03 CHASE MANHATTAN BANK, N.A.
015 B00AA03 S
015 C01AA03 NEW YORK
015 C02AA03 NY
015 C03AA03 10081
015 E04AA03 X
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 50
019 C00AA00 MASSFINSER
020 A000001 MERRILL LYNCH & CO.
020 B000001 13-5674085
020 C000001 215
020 A000002 PAINEWEBBER INCORPORATED
020 B000002 13-2638166
020 C000002 187
020 A000003 SALOMON BROTHERS INC.
020 B000003 13-3082694
020 C000003 146
020 A000004 GOLDMAN SACHS & CO.
020 B000004 13-5108880
020 C000004 132
020 A000005 J.P. MORGAN SECURITIES, INC.
020 B000005 13-3224016
020 C000005 110
020 A000006 MORGAN STANLEY & CO.
020 B000006 13-2655998
020 C000006 110
020 A000007 DONALDSON LUFKIN SECURITIES
020 B000007 13-2741729
020 C000007 77
020 A000008 CS FIRST BOSTON CORP.
020 B000008 13-5659485
020 C000008 69
<PAGE> PAGE 3
020 A000009 LEHMAN BROTHERS
020 B000009 13-2518466
020 C000009 65
020 A000010 PRUDENTIAL SECURITIES
020 B000010 22-2347336
020 C000010 63
021 000000 2712
022 A000001 LEHMAN BROTHERS
022 B000001 13-2518466
022 C000001 1610826
022 D000001 708653
022 A000002 GOLDMAN SACHS & CO.
022 B000002 13-5108880
022 C000002 909313
022 D000002 271052
022 A000003 MERRILL LYNCH & CO.
022 B000003 13-5674085
022 C000003 613155
022 D000003 332683
022 A000004 CS FIRST BOSTON CORP.
022 B000004 13-5659485
022 C000004 649444
022 D000004 134452
022 A000005 PRUDENTIAL SECURITIES
022 B000005 22-2347336
022 C000005 606839
022 D000005 136174
022 A000006 BANK OF AMERICA
022 B000006 94-1687665
022 C000006 589872
022 D000006 0
022 A000007 FORD MOTOR CREDIT CO.
022 B000007 38-1612444
022 C000007 518095
022 D000007 0
022 A000008 SALOMON BROTHERS INC.
022 B000008 13-3082694
022 C000008 253245
022 D000008 177821
022 A000009 CHEMICAL BANK
022 B000009 13-4994650
022 C000009 398599
022 D000009 31023
022 A000010 MORGAN STANLEY & CO.
022 B000010 13-2655998
022 C000010 278099
022 D000010 123250
023 C000000 8182792
023 D000000 2576777
026 A000000 Y
026 B000000 Y
<PAGE> PAGE 4
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 N
054 D00AA00 N
054 E00AA00 N
054 F00AA00 N
054 G00AA00 N
054 H00AA00 Y
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 N
054 L00AA00 N
054 M00AA00 Y
054 N00AA00 N
054 O00AA00 N
058 A00AA00 N
059 00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061 00AA00 1000
062 A00AA00 N
062 B00AA00 0.0
062 C00AA00 0.0
062 D00AA00 0.0
062 E00AA00 0.0
062 F00AA00 0.0
062 G00AA00 0.0
062 H00AA00 0.0
062 I00AA00 0.0
062 J00AA00 0.0
062 K00AA00 0.0
062 L00AA00 0.0
062 M00AA00 0.0
062 N00AA00 0.0
062 O00AA00 0.0
062 P00AA00 0.0
062 Q00AA00 0.0
062 R00AA00 0.0
077 A000000 Y
077 B000000 Y
077 C000000 N
077 D000000 N
077 E000000 N
<PAGE> PAGE 5
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 Y
077 Q020000 N
077 Q030000 N
078 000000 N
080 A00AA00 NATIONAL UNION INSURANCE CO.
080 B00AA00 ICI MUTUAL
080 C00AA00 60000
081 A00AA00 Y
081 B00AA00 73
082 A00AA00 N
082 B00AA00 0
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
086 A01AA00 0
086 A02AA00 0
086 B01AA00 0
086 B02AA00 0
086 C01AA00 0
086 C02AA00 0
086 D01AA00 0
086 D02AA00 0
086 E01AA00 0
086 E02AA00 0
086 F01AA00 0
086 F02AA00 0
024 000100 Y
025 A000101 BEAR STEARNS
025 B000101 13-4946705
025 C000101 E
025 D000101 3666
025 A000102 DEAN WITTER DISCOVER
025 B000102 94-1671384
025 C000102 E
025 D000102 12701
025 A000103 GOLDMAN SACHS GROUP
025 B000103 13-5108880
<PAGE> PAGE 6
025 C000103 D
025 D000103 2542
025 A000104 LEHMAN BROS.
025 B000104 13-2518466
025 C000104 D
025 D000104 10869
025 A000105 DELETE
025 D000105 0
025 D000106 0
025 D000107 0
025 D000108 0
028 A010100 53349
028 A020100 0
028 A030100 0
028 A040100 44656
028 B010100 58008
028 B020100 9058
028 B030100 0
028 B040100 53350
028 C010100 51465
028 C020100 9086
028 C030100 0
028 C040100 41011
028 D010100 73716
028 D020100 9160
028 D030100 0
028 D040100 63555
028 E010100 57594
028 E020100 9555
028 E030100 0
028 E040100 40827
028 F010100 53312
028 F020100 9658
028 F030100 0
028 F040100 36618
028 G010100 347445
028 G020100 46517
028 G030100 0
028 G040100 280016
028 H000100 161986
029 000100 Y
030 A000100 3098
030 B000100 4.75
030 C000100 0.00
031 A000100 456
031 B000100 0
032 000100 2642
033 000100 0
034 000100 Y
035 000100 1784
036 A000100 N
<PAGE> PAGE 7
036 B000100 0
037 000100 N
038 000100 0
039 000100 N
040 000100 Y
041 000100 Y
042 A000100 0
042 B000100 0
042 C000100 5
042 D000100 95
042 E000100 0
042 F000100 0
042 G000100 0
042 H000100 0
043 000100 16020
044 000100 0
045 000100 Y
046 000100 N
047 000100 N
048 000100 0.000
048 A010100 0
048 A020100 0.000
048 B010100 0
048 B020100 0.000
048 C010100 0
048 C020100 0.000
048 D010100 0
048 D020100 0.000
048 E010100 0
048 E020100 0.000
048 F010100 0
048 F020100 0.000
048 G010100 0
048 G020100 0.000
048 H010100 0
048 H020100 0.000
048 I010100 0
048 I020100 0.000
048 J010100 0
048 J020100 0.000
048 K010100 0
048 K020100 0.000
049 000100 N
050 000100 Y
051 000100 N
052 000100 N
053 A000100 Y
053 B000100 N
053 C000100 Y
055 A000100 N
055 B000100 N
<PAGE> PAGE 8
056 000100 Y
057 000100 N
066 A000100 Y
066 B000100 N
066 C000100 N
066 D000100 N
066 E000100 N
066 F000100 N
066 G000100 Y
067 000100 Y
068 A000100 N
068 B000100 N
069 000100 N
070 A010100 Y
070 A020100 N
070 B010100 N
070 B020100 N
070 C010100 Y
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 Y
070 E020100 N
070 F010100 N
070 F020100 N
070 G010100 Y
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 Y
070 J020100 Y
070 K010100 Y
070 K020100 N
070 L010100 Y
070 L020100 Y
070 M010100 Y
070 M020100 Y
070 N010100 Y
070 N020100 N
070 O010100 Y
070 O020100 N
070 P010100 Y
070 P020100 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100 1645826
071 B000100 1380608
<PAGE> PAGE 9
071 C000100 2728436
071 D000100 51
072 A000100 12
072 B000100 105318
072 C000100 59077
072 D000100 0
072 E000100 -478
072 F000100 11256
072 G000100 0
072 H000100 0
072 I000100 4072
072 J000100 630
072 K000100 554
072 L000100 267
072 M000100 101
072 N000100 0
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 80
072 S000100 22
072 T000100 16020
072 U000100 0
072 V000100 0
072 W000100 1717
072 X000100 34720
072 Y000100 2206
072 Z000100 131402
072AA000100 120787
072BB000100 0
072CC010100 242625
072CC020100 0
072DD010100 125484
072DD020100 33885
072EE000100 2146
073 A010100 0.6100
073 A020100 0.5000
073 B000100 0.0100
073 C000100 0.0200
074 A000100 17
074 B000100 0
074 C000100 257289
074 D000100 1275761
074 E000100 194197
074 F000100 1542297
074 G000100 0
074 H000100 0
074 I000100 0
074 J000100 48388
074 K000100 3757
074 L000100 29057
<PAGE> PAGE 10
074 M000100 58
074 N000100 3350821
074 O000100 69267
074 P000100 8551
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 2294
074 S000100 0
074 T000100 3270709
074 U010100 226115
074 U020100 69507
074 V010100 14.46
074 V020100 14.46
074 W000100 0.0000
074 X000100 211746
074 Y000100 0
075 A000100 0
075 B000100 3063510
076 000100 0.00
024 000200 N
025 D000201 0
025 D000202 0
025 D000203 0
025 D000204 0
025 D000205 0
025 D000206 0
025 D000207 0
025 D000208 0
028 A010200 20139
028 A020200 1
028 A030200 0
028 A040200 7185
028 B010200 26321
028 B020200 0
028 B030200 0
028 B040200 11076
028 C010200 41812
028 C020200 0
028 C030200 0
028 C040200 7832
028 D010200 47357
028 D020200 0
028 D030200 0
028 D040200 8911
028 E010200 51588
028 E020200 0
028 E030200 0
028 E040200 12449
028 F010200 42363
<PAGE> PAGE 11
028 F020200 0
028 F030200 0
028 F040200 13047
028 G010200 229581
028 G020200 1
028 G030200 0
028 G040200 60499
028 H000200 75033
029 000200 Y
030 A000200 2559
030 B000200 4.75
030 C000200 0.00
031 A000200 168
031 B000200 0
032 000200 2391
033 000200 0
034 000200 Y
035 000200 110
036 A000200 N
036 B000200 0
037 000200 N
038 000200 0
039 000200 N
040 000200 Y
041 000200 Y
042 A000200 0
042 B000200 0
042 C000200 8
042 D000200 92
042 E000200 0
042 F000200 0
042 G000200 0
042 H000200 0
043 000200 2234
044 000200 0
045 000200 Y
046 000200 N
047 000200 N
048 000200 0.000
048 A010200 0
048 A020200 0.000
048 B010200 0
048 B020200 0.000
048 C010200 0
048 C020200 0.000
048 D010200 0
048 D020200 0.000
048 E010200 0
048 E020200 0.000
048 F010200 0
048 F020200 0.000
<PAGE> PAGE 12
048 G010200 0
048 G020200 0.000
048 H010200 0
048 H020200 0.000
048 I010200 0
048 I020200 0.000
048 J010200 0
048 J020200 0.000
048 K010200 0
048 K020200 0.000
049 000200 N
050 000200 Y
051 000200 N
052 000200 N
053 A000200 Y
053 B000200 N
053 C000200 Y
055 A000200 N
055 B000200 N
056 000200 Y
057 000200 N
066 A000200 Y
066 B000200 N
066 C000200 N
066 D000200 N
066 E000200 Y
066 F000200 N
066 G000200 N
067 000200 N
068 A000200 N
068 B000200 N
069 000200 N
070 A010200 Y
070 A020200 N
070 B010200 N
070 B020200 N
070 C010200 N
070 C020200 N
070 D010200 N
070 D020200 N
070 E010200 N
070 E020200 N
070 F010200 N
070 F020200 N
070 G010200 N
070 G020200 N
070 H010200 N
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 Y
<PAGE> PAGE 13
070 J020200 Y
070 K010200 Y
070 K020200 N
070 L010200 Y
070 L020200 Y
070 M010200 Y
070 M020200 Y
070 N010200 Y
070 N020200 N
070 O010200 Y
070 O020200 N
070 P010200 Y
070 P020200 N
070 Q010200 N
070 Q020200 N
070 R010200 N
070 R020200 N
071 A000200 444237
071 B000200 261549
071 C000200 551744
071 D000200 47
072 A000200 12
072 B000200 1763
072 C000200 5521
072 D000200 0
072 E000200 -109
072 F000200 1910
072 G000200 0
072 H000200 0
072 I000200 761
072 J000200 210
072 K000200 59
072 L000200 55
072 M000200 34
072 N000200 0
072 O000200 0
072 P000200 0
072 Q000200 0
072 R000200 37
072 S000200 11
072 T000200 2234
072 U000200 0
072 V000200 0
072 W000200 266
072 X000200 5579
072 Y000200 409
072 Z000200 2005
072AA000200 47455
072BB000200 0
072CC010200 68894
072CC020200 0
<PAGE> PAGE 14
072DD010200 497
072DD020200 15
072EE000200 955
073 A010200 0.0200
073 A020200 0.0003
073 B000200 0.3500
073 C000200 0.0000
074 A000200 16
074 B000200 0
074 C000200 25214
074 D000200 0
074 E000200 2398
074 F000200 686410
074 G000200 0
074 H000200 0
074 I000200 0
074 J000200 4892
074 K000200 5258
074 L000200 982
074 M000200 5
074 N000200 725175
074 O000200 12731
074 P000200 616
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 190
074 S000200 0
074 T000200 711638
074 U010200 45769
074 U020200 11565
074 V010200 15.61
074 V020200 15.40
074 W000200 0.0000
074 X000200 49951
074 Y000200 0
075 A000200 0
075 B000200 559648
076 000200 0.00
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 TOTAL RETURN
FUND CLASS A AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER>011
<NAME> MFS TOTAL RETURN FUND CLASS A
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> SEP-30-1995
<PERIOD-END> SEP-30-1995
<INVESTMENTS-AT-COST> 2,746,829,464
<INVESTMENTS-AT-VALUE> 3,269,544,120
<RECEIVABLES> 81,202,514
<ASSETS-OTHER> 58,151
<OTHER-ITEMS-ASSETS> 16,688
<TOTAL-ASSETS> 3,350,821,473
<PAYABLE-FOR-SECURITIES> 69,267,792
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 10,844,835
<TOTAL-LIABILITIES> 80,112,627
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2,648,454,101
<SHARES-COMMON-STOCK> 155,030,940
<SHARES-COMMON-PRIOR> 145,089,983
<ACCUMULATED-NII-CURRENT> 1,522,351
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 98,017,011
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 522,715,383
<NET-ASSETS> 3,270,708,846
<DIVIDEND-INCOME> 59,076,808
<INTEREST-INCOME> 105,318,026
<OTHER-INCOME> (478,396)
<EXPENSES-NET> 32,514,304
<NET-INVESTMENT-INCOME> 131,402,134
<REALIZED-GAINS-CURRENT> 120,786,908
<APPREC-INCREASE-CURRENT> 242,624,905
<NET-CHANGE-FROM-OPS> 494,813,947
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 91,296,492
<DISTRIBUTIONS-OF-GAINS> 1,471,111
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 27,571,191
<NUMBER-OF-SHARES-REDEEMED> 23,436,000
<SHARES-REINVESTED> 5,805,766
<NET-CHANGE-IN-ASSETS> 569,273,587
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 7,440,916
<OVERDIST-NET-GAINS-PRIOR> 17,579,156
<GROSS-ADVISORY-FEES> 11,256,389
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 34,719,899
<AVERAGE-NET-ASSETS> 2,885,203,365
<PER-SHARE-NAV-BEGIN> 12.80
<PER-SHARE-NII> 0.64
<PER-SHARE-GAIN-APPREC> 1.64
<PER-SHARE-DIVIDEND> 0.61
<PER-SHARE-DISTRIBUTIONS> 0.01
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 14.46
<EXPENSE-RATIO> 0.87
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FINANCIAL STATEMENTS OF MFS TOTAL RETURN
FUND CLASS B AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER>012
<NAME> MFS TOTAL RETURN FUND CLASS B
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> SEP-30-1995
<PERIOD-END> SEP-30-1995
<INVESTMENTS-AT-COST> 2,746,829,464
<INVESTMENTS-AT-VALUE> 3,269,544,120
<RECEIVABLES> 81,202,514
<ASSETS-OTHER> 58,151
<OTHER-ITEMS-ASSETS> 16,688
<TOTAL-ASSETS> 3,350,821,473
<PAYABLE-FOR-SECURITIES> 69,267,792
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 10,844,835
<TOTAL-LIABILITIES> 80,112,627
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2,648,454,101
<SHARES-COMMON-STOCK> 69,507,266
<SHARES-COMMON-PRIOR> 65,823,366
<ACCUMULATED-NII-CURRENT> 1,522,351
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 98,017,011
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 522,715,383
<NET-ASSETS> 3,270,708,846
<DIVIDEND-INCOME> 59,076,808
<INTEREST-INCOME> 105,318,026
<OTHER-INCOME> (478,396)
<EXPENSES-NET> 32,514,304
<NET-INVESTMENT-INCOME> 131,402,134
<REALIZED-GAINS-CURRENT> 120,786,908
<APPREC-INCREASE-CURRENT> 242,624,905
<NET-CHANGE-FROM-OPS> 494,813,947
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 33,884,609
<DISTRIBUTIONS-OF-GAINS> 672,401
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 17,488,664
<NUMBER-OF-SHARES-REDEEMED> 16,113,302
<SHARES-REINVESTED> 2,308,539
<NET-CHANGE-IN-ASSETS> 569,273,587
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 7,440,916
<OVERDIST-NET-GAINS-PRIOR> 17,579,156
<GROSS-ADVISORY-FEES> 11,256,389
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 34,719,899
<AVERAGE-NET-ASSETS> 2,885,203,365
<PER-SHARE-NAV-BEGIN> 12.80
<PER-SHARE-NII> 0.53
<PER-SHARE-GAIN-APPREC> 1.64
<PER-SHARE-DIVIDEND> 0.50
<PER-SHARE-DISTRIBUTIONS> 0.01
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 14.46
<EXPENSE-RATIO> 1.71
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FINANCIAL STATEMENTS OF MFS TOTAL RETURN
FUND CLASS C AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER>013
<NAME> MFS TOTAL RETURN FUND CLASS C
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> SEP-30-1995
<PERIOD-END> SEP-30-1995
<INVESTMENTS-AT-COST> 2,746,829,464
<INVESTMENTS-AT-VALUE> 3,269,544,120
<RECEIVABLES> 81,202,514
<ASSETS-OTHER> 58,151
<OTHER-ITEMS-ASSETS> 16,688
<TOTAL-ASSETS> 3,350,821,473
<PAYABLE-FOR-SECURITIES> 69,267,792
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 10,844,835
<TOTAL-LIABILITIES> 80,112,627
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2,648,454,101
<SHARES-COMMON-STOCK> 1,577,252
<SHARES-COMMON-PRIOR> 99,818
<ACCUMULATED-NII-CURRENT> 1,522,351
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 98,017,011
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 522,715,383
<NET-ASSETS> 3,270,708,846
<DIVIDEND-INCOME> 59,076,808
<INTEREST-INCOME> 105,318,026
<OTHER-INCOME> (478,396)
<EXPENSES-NET> 32,514,304
<NET-INVESTMENT-INCOME> 131,402,134
<REALIZED-GAINS-CURRENT> 120,786,908
<APPREC-INCREASE-CURRENT> 242,624,905
<NET-CHANGE-FROM-OPS> 494,813,947
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 302,945
<DISTRIBUTIONS-OF-GAINS> 2,050
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,619,700
<NUMBER-OF-SHARES-REDEEMED> 163,091
<SHARES-REINVESTED> 20,825
<NET-CHANGE-IN-ASSETS> 569,273,587
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 7,440,916
<OVERDIST-NET-GAINS-PRIOR> 17,579,156
<GROSS-ADVISORY-FEES> 11,256,389
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 34,719,899
<AVERAGE-NET-ASSETS> 2,885,203,365
<PER-SHARE-NAV-BEGIN> 12.80
<PER-SHARE-NII> 0.54
<PER-SHARE-GAIN-APPREC> 1.66
<PER-SHARE-DIVIDEND> 0.50
<PER-SHARE-DISTRIBUTIONS> 0.01
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 14.49
<EXPENSE-RATIO> 1.67
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FINANCIAL STATEMENTS OF MFS RESEARCH
FUND CLASS A AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER>021
<NAME> MFS RESEARCH FUND CLASS A
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> SEP-30-1995
<PERIOD-END> SEP-30-1995
<INVESTMENTS-AT-COST> 588,292,393
<INVESTMENTS-AT-VALUE> 714,021,857
<RECEIVABLES> 11,132,654
<ASSETS-OTHER> 5,160
<OTHER-ITEMS-ASSETS> 15,718
<TOTAL-ASSETS> 725,175,389
<PAYABLE-FOR-SECURITIES> 12,730,698
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 806,757
<TOTAL-LIABILITIES> 13,537,455
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 537,626,146
<SHARES-COMMON-STOCK> 32,534,587
<SHARES-COMMON-PRIOR> 25,276,729
<ACCUMULATED-NII-CURRENT> 1,418,529
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 46,863,005
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 125,730,254
<NET-ASSETS> 711,637,934
<DIVIDEND-INCOME> 5,521,009
<INTEREST-INCOME> 1,763,021
<OTHER-INCOME> (108,803)
<EXPENSES-NET> 5,169,897
<NET-INVESTMENT-INCOME> 2,005,330
<REALIZED-GAINS-CURRENT> 47,454,687
<APPREC-INCREASE-CURRENT> 68,894,341
<NET-CHANGE-FROM-OPS> 118,354,358
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 481,316
<DISTRIBUTIONS-OF-GAINS> 820,736
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 12,798,218
<NUMBER-OF-SHARES-REDEEMED> 5,659,542
<SHARES-REINVESTED> 119,182
<NET-CHANGE-IN-ASSETS> 362,975,633
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 345,440
<OVERDISTRIB-NII-PRIOR> 72,628
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,910,078
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5,578,785
<AVERAGE-NET-ASSETS> 469,632,994
<PER-SHARE-NAV-BEGIN> 12.59
<PER-SHARE-NII> 0.08
<PER-SHARE-GAIN-APPREC> 2.99
<PER-SHARE-DIVIDEND> 0.02
<PER-SHARE-DISTRIBUTIONS> 0.03
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 15.61
<EXPENSE-RATIO> 0.95
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FINANCIAL STATEMENTS OF MFS RESEARCH
FUND CLASS B AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER>022
<NAME> MFS RESEARCH FUND CLASS B
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> SEP-30-1995
<PERIOD-END> SEP-30-1995
<INVESTMENTS-AT-COST> 588,292,393
<INVESTMENTS-AT-VALUE> 714,021,857
<RECEIVABLES> 11,132,654
<ASSETS-OTHER> 5,160
<OTHER-ITEMS-ASSETS> 15,718
<TOTAL-ASSETS> 725,175,389
<PAYABLE-FOR-SECURITIES> 12,730,698
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 806,757
<TOTAL-LIABILITIES> 13,537,455
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 537,626,146
<SHARES-COMMON-STOCK> 11,565,395
<SHARES-COMMON-PRIOR> 2,053,733
<ACCUMULATED-NII-CURRENT> 1,418,529
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 46,863,005
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 125,730,254
<NET-ASSETS> 711,637,934
<DIVIDEND-INCOME> 5,521,009
<INTEREST-INCOME> 1,763,021
<OTHER-INCOME> (108,803)
<EXPENSES-NET> 5,169,897
<NET-INVESTMENT-INCOME> 2,005,330
<REALIZED-GAINS-CURRENT> 47,454,687
<APPREC-INCREASE-CURRENT> 68,894,341
<NET-CHANGE-FROM-OPS> 118,354,358
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 14,893
<DISTRIBUTIONS-OF-GAINS> 118,230
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 11,678,569
<NUMBER-OF-SHARES-REDEEMED> 2,178,275
<SHARES-REINVESTED> 11,368
<NET-CHANGE-IN-ASSETS> 362,975,633
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 345,440
<OVERDISTRIB-NII-PRIOR> 72,628
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,910,078
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5,578,785
<AVERAGE-NET-ASSETS> 469,632,994
<PER-SHARE-NAV-BEGIN> 12.50
<PER-SHARE-NII> (0.03)
<PER-SHARE-GAIN-APPREC> 2.96
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> 0.03
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 15.40
<EXPENSE-RATIO> 1.78
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FINANCIAL STATEMENTS OF MFS RESEARCH
FUND CLASS C AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER>023
<NAME> MFS RESEARCH FUND CLASS C
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> SEP-30-1995
<PERIOD-END> SEP-30-1995
<INVESTMENTS-AT-COST> 588,292,393
<INVESTMENTS-AT-VALUE> 714,021,857
<RECEIVABLES> 11,132,654
<ASSETS-OTHER> 5,160
<OTHER-ITEMS-ASSETS> 15,718
<TOTAL-ASSETS> 725,175,389
<PAYABLE-FOR-SECURITIES> 12,730,698
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 806,757
<TOTAL-LIABILITIES> 13,537,455
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 537,626,146
<SHARES-COMMON-STOCK> 1,669,270
<SHARES-COMMON-PRIOR> 385,474
<ACCUMULATED-NII-CURRENT> 1,418,529
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 46,863,005
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 125,730,254
<NET-ASSETS> 711,637,934
<DIVIDEND-INCOME> 5,521,009
<INTEREST-INCOME> 1,763,021
<OTHER-INCOME> (108,803)
<EXPENSES-NET> 5,169,897
<NET-INVESTMENT-INCOME> 2,005,330
<REALIZED-GAINS-CURRENT> 47,454,687
<APPREC-INCREASE-CURRENT> 68,894,341
<NET-CHANGE-FROM-OPS> 118,354,358
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 16,120
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,642,158
<NUMBER-OF-SHARES-REDEEMED> 359,369
<SHARES-REINVESTED> 1,007
<NET-CHANGE-IN-ASSETS> 362,975,633
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 345,440
<OVERDISTRIB-NII-PRIOR> 72,628
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,910,078
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5,578,785
<AVERAGE-NET-ASSETS> 469,632,994
<PER-SHARE-NAV-BEGIN> 12.51
<PER-SHARE-NII> (0.02)
<PER-SHARE-GAIN-APPREC> 2.96
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> 0.03
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 15.42
<EXPENSE-RATIO> 1.71
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
