MFS SERIES TRUST II
NSAR-A, 1998-07-28
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<PAGE>      PAGE  1
000 A000000 05/30/98
000 C000000 0000798250
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 II
001 B000000 811-4775
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  3
007 C010100  1
007 C020100 MFS EMERGING GROWTH FUND
007 C030100 N
007 C010200  2
007 C020200 MFS LARGE CAP GROWTH FUND
007 C030200 N
007 C010300  3
007 C020300 MFS INTERMEDIATE INCOME FUND
007 C030300 N
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
010 A00AA01 MASSACHUSETTS FINANCIAL SERVICES COMPANY
010 B00AA01 801-17352
010 C01AA01 BOSTON
010 C02AA01 MA
010 C03AA01 02116
011 A00AA01 MFS FUND DISTRIBUTORS, INC.
011 B00AA01 8-27864
<PAGE>      PAGE  2
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
012 C03AA01 02116
013 A00AA01 DELOITTE & TOUCHE LLP
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02110
018  00AA00 Y
019 A00AA00 Y
019 B00AA00   50
019 C00AA00 MASSFINSER
020 A000001 MORGAN STANLEY
020 B000001 13-2655998
020 C000001    214
020 A000002 A.G. EDWARDS & SONS
020 B000002 43-0895447
020 C000002    203
020 A000003 WEEDEN & CO
020 B000003 13-3364318
020 C000003    171
020 A000004 MERRILL LYNCH PIERCE FENNER
020 B000004 13-5674085
020 C000004    149
020 A000005 PAINE WEBBER INCORPORATED
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020 A000006 ROYAL ALLIANCE ASSOCIATES
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020 A000007 GOLDMAN SACHS & CO
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020 C000007     83
020 A000008 DONALDSON, LUFKIN & JENRE
020 B000008 13-2741729
020 C000008     79
020 A000009 BERNSTEIN SANFORD C & CO
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<PAGE>      PAGE  3
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<PAGE>      PAGE  4
054 D00AA00 N
054 E00AA00 N
054 F00AA00 N
054 G00AA00 N
054 H00AA00 Y
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015 A000103 THE BANK OF NEW YORK
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<PAGE>      PAGE  5
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<PAGE>      PAGE  6
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<PAGE>      PAGE  7
051  000100 N
052  000100 N
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055 B000100 N
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067  000100 N
068 A000100 N
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069  000100 N
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<PAGE>      PAGE  8
070 B010100 Y
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070 C020100 N
070 D010100 Y
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070 E010100 N
070 E020100 N
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070 F020100 N
070 G010100 Y
070 G020100 N
070 H010100 Y
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 Y
070 J020100 Y
070 K010100 Y
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070 L010100 Y
070 L020100 Y
070 M010100 Y
070 M020100 Y
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070 N020100 Y
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070 Q020100 N
070 R010100 N
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<PAGE>      PAGE  9
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<PAGE>      PAGE  10
074 W000100   0.0000
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015 A000201 STATE STREET BANK AND TRUST COMPANY
015 B000201 C
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015 A000202 CHASE MANHATTAN BANK, N.A.
015 B000202 S
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015 E040202 X
015 A000203 THE BANK OF NEW YORK
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015 C010203 NEW YORK
015 C020203 NY
015 C030203 10286
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025 A000201 GENERAL ELECTRIC CAPITAL CORP.
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<PAGE>      PAGE  11
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039  000200 N
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041  000200 Y
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<PAGE>      PAGE  12
048 A010200  1000000
048 A020200 0.750
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048 K010200  1000000
048 K020200 0.650
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050  000200 N
051  000200 N
052  000200 N
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053 C000200 Y
055 A000200 N
055 B000200 N
056  000200 Y
057  000200 N
058 A000200 N
058 B000200 N
058 C000200 N
058 D000200 N
058 E000200 N
059  000200 Y
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<PAGE>      PAGE  13
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066 E000200 N
066 F000200 N
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070 A020200 N
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070 B020200 N
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070 C020200 N
070 D010200 Y
070 D020200 N
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070 F010200 Y
070 F020200 N
070 G010200 N
070 G020200 N
070 H010200 Y
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 Y
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<PAGE>      PAGE  14
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<PAGE>      PAGE  15
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015 A000303 THE BANK OF NEW YORK
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<PAGE>      PAGE  16
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<PAGE>      PAGE  17
041  000300 Y
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<PAGE>      PAGE  18
058 D000300 N
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070 I020300 N
<PAGE>      PAGE  19
070 J010300 Y
070 J020300 N
070 K010300 Y
070 K020300 N
070 L010300 Y
070 L020300 Y
070 M010300 Y
070 M020300 Y
070 N010300 Y
070 N020300 N
070 O010300 Y
070 O020300 N
070 P010300 Y
070 P020300 N
070 Q010300 N
070 Q020300 N
070 R010300 N
070 R020300 N
071 A000300    148894
071 B000300    153065
071 C000300    140018
071 D000300  106
072 A000300  6
072 B000300     5332
072 C000300        0
072 D000300        0
072 E000300        0
072 F000300      532
072 G000300       10
072 H000300        0
072 I000300       83
072 J000300       32
072 K000300       15
072 L000300       37
072 M000300       22
072 N000300        0
072 O000300        0
072 P000300        0
072 Q000300        0
072 R000300       36
072 S000300        1
072 T000300      545
072 U000300        0
072 V000300        0
072 W000300       52
072 X000300     1365
072 Y000300        8
072 Z000300     3975
072AA000300        0
072BB000300      468
072CC010300      680
<PAGE>      PAGE  20
072CC020300        0
072DD010300     1162
072DD020300     3063
072EE000300        0
073 A010300   0.2800
073 A020300   0.2300
073 B000300   0.0000
073 C000300   0.0000
074 A000300        5
074 B000300        0
074 C000300     3050
074 D000300   140626
074 E000300        0
074 F000300        0
074 G000300        0
074 H000300        0
074 I000300       13
074 J000300       54
074 K000300        0
074 L000300     1607
074 M000300        3
074 N000300   145358
074 O000300     6129
074 P000300       63
074 Q000300        0
074 R010300        0
074 R020300        0
074 R030300       23
074 R040300      336
074 S000300        0
074 T000300   138807
074 U010300     4736
074 U020300    11801
074 V010300     8.38
074 V020300     8.40
074 W000300   0.0000
074 X000300     8376
074 Y000300     1630
075 A000300        0
075 B000300   144284
076  000300     0.00
SIGNATURE   JAMES O. YOST                                
TITLE       ASSISTANT TREASURER 
 


<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798250
<NAME> MFS SERIES TRUST II
<SERIES>
   <NUMBER> 033
   <NAME> MFS INTERMEDIATE INCOME FUND - CLASS I
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1998
<PERIOD-START>                             DEC-01-1997
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                        142830188
<INVESTMENTS-AT-VALUE>                       143689360
<RECEIVABLES>                                  1660777
<ASSETS-OTHER>                                    4742
<OTHER-ITEMS-ASSETS>                              3019
<TOTAL-ASSETS>                               145357898
<PAYABLE-FOR-SECURITIES>                       6129254
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       422141
<TOTAL-LIABILITIES>                            6551395
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     143473124
<SHARES-COMMON-STOCK>                              637
<SHARES-COMMON-PRIOR>                              343
<ACCUMULATED-NII-CURRENT>                       708446
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<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     (6238850)
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<NET-ASSETS>                                 138806503
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                              5332004
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<EXPENSES-NET>                               (1356550)
<NET-INVESTMENT-INCOME>                        3975454
<REALIZED-GAINS-CURRENT>                      (467801)
<APPREC-INCREASE-CURRENT>                       679634
<NET-CHANGE-FROM-OPS>                          4187287
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        (149)
<DISTRIBUTIONS-OF-GAINS>                             0
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<NUMBER-OF-SHARES-SOLD>                            392
<NUMBER-OF-SHARES-REDEEMED>                      (115)
<SHARES-REINVESTED>                                 17
<NET-CHANGE-IN-ASSETS>                      (11464979)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         958326 
<OVERDIST-NET-GAINS-PRIOR>                    (5771049)
<GROSS-ADVISORY-FEES>                           532316
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                1364681
<AVERAGE-NET-ASSETS>                              4216
<PER-SHARE-NAV-BEGIN>                             8.41
<PER-SHARE-NII>                                    .28
<PER-SHARE-GAIN-APPREC>                          (.01)
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<PER-SHARE-NAV-END>                               8.40
<EXPENSE-RATIO>                                   1.12
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<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798250
<NAME> MFS SERIES TRUST II
<SERIES>
   <NUMBER> 032
   <NAME> MFS INTERMEDIATE INCOME FUND - CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1998
<PERIOD-START>                             DEC-01-1997
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                        142830188
<INVESTMENTS-AT-VALUE>                       143689360
<RECEIVABLES>                                  1660777
<ASSETS-OTHER>                                    4742
<OTHER-ITEMS-ASSETS>                              3019
<TOTAL-ASSETS>                               145357898
<PAYABLE-FOR-SECURITIES>                       6129254
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       422141
<TOTAL-LIABILITIES>                            6551395
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     143473124
<SHARES-COMMON-STOCK>                         11801490
<SHARES-COMMON-PRIOR>                         14220426
<ACCUMULATED-NII-CURRENT>                       708446
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     (6238850)
<ACCUM-APPREC-OR-DEPREC>                        863783
<NET-ASSETS>                                 138806503
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                              5332004
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (1356550)
<NET-INVESTMENT-INCOME>                        3975454
<REALIZED-GAINS-CURRENT>                      (467801)
<APPREC-INCREASE-CURRENT>                       679634
<NET-CHANGE-FROM-OPS>                          4187287
<EQUALIZATION>                                       0
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<NUMBER-OF-SHARES-SOLD>                         526904
<NUMBER-OF-SHARES-REDEEMED>                  (3145863)
<SHARES-REINVESTED>                             200023
<NET-CHANGE-IN-ASSETS>                      (11464979)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                      958326
<GROSS-ADVISORY-FEES>                           532316
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                1364681
<AVERAGE-NET-ASSETS>                         109525056
<PER-SHARE-NAV-BEGIN>                             8.40
<PER-SHARE-NII>                                    .22
<PER-SHARE-GAIN-APPREC>                            .01
<PER-SHARE-DIVIDEND>                             (.23)
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<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.40
<EXPENSE-RATIO>                                   2.14
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798250
<NAME> MFS SERIES TRUST II
<SERIES>
   <NUMBER> 031
   <NAME> MFS INTERMEDIATE INCOME FUND  -CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1998
<PERIOD-START>                             DEC-01-1997
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                        142830188
<INVESTMENTS-AT-VALUE>                       143689360
<RECEIVABLES>                                  1660777
<ASSETS-OTHER>                                    4742
<OTHER-ITEMS-ASSETS>                              3019
<TOTAL-ASSETS>                               145357898
<PAYABLE-FOR-SECURITIES>                       6129254
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       422141
<TOTAL-LIABILITIES>                            6551395
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     143473124
<SHARES-COMMON-STOCK>                          4736462
<SHARES-COMMON-PRIOR>                          3674730
<ACCUMULATED-NII-CURRENT>                       708446
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     (6238850)
<ACCUM-APPREC-OR-DEPREC>                        863783
<NET-ASSETS>                                 138806503
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                              5332004
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (1356550)
<NET-INVESTMENT-INCOME>                        3975454
<REALIZED-GAINS-CURRENT>                      (467801)
<APPREC-INCREASE-CURRENT>                       679634
<NET-CHANGE-FROM-OPS>                          4187287
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (1161779)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        1484033
<NUMBER-OF-SHARES-REDEEMED>                   (516665)
<SHARES-REINVESTED>                              94364
<NET-CHANGE-IN-ASSETS>                      (11464979)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                         958326
<OVERDIST-NET-GAINS-PRIOR>                   (5771049)
<GROSS-ADVISORY-FEES>                           532316
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                1364681
<AVERAGE-NET-ASSETS>                          34755076
<PER-SHARE-NAV-BEGIN>                             8.39
<PER-SHARE-NII>                                    .26
<PER-SHARE-GAIN-APPREC>                            .01
<PER-SHARE-DIVIDEND>                             (.28)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.38
<EXPENSE-RATIO>                                   1.14
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798250
<NAME> MFS SERIES TRUST II
<SERIES>
   <NUMBER> 014
   <NAME> MFS EMERGING GROWTH FUND - CLASS I
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1998
<PERIOD-START>                             DEC-01-1997
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                       7111372628
<INVESTMENTS-AT-VALUE>                     11297361951
<RECEIVABLES>                                 68933808
<ASSETS-OTHER>                                 3776631
<OTHER-ITEMS-ASSETS>                             73858
<TOTAL-ASSETS>                             11370146248
<PAYABLE-FOR-SECURITIES>                      51133497
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    274825076
<TOTAL-LIABILITIES>                          325958573
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    6885616154
<SHARES-COMMON-STOCK>                          1270250
<SHARES-COMMON-PRIOR>                          1255617
<ACCUMULATED-NII-CURRENT>                   (68680271)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       41263739
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    4185988053
<NET-ASSETS>                               11044187675
<DIVIDEND-INCOME>                              8070824
<INTEREST-INCOME>                              6253138
<OTHER-INCOME>                                (202588)
<EXPENSES-NET>                              (82714242)
<NET-INVESTMENT-INCOME>                     (68592868)
<REALIZED-GAINS-CURRENT>                      40260607
<APPREC-INCREASE-CURRENT>                    962080358
<NET-CHANGE-FROM-OPS>                        933748097
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                      (526650)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          96615
<NUMBER-OF-SHARES-REDEEMED>                    (97257)
<SHARES-REINVESTED>                              15275
<NET-CHANGE-IN-ASSETS>                      1634318850
<ACCUMULATED-NII-PRIOR>                        (87403)
<ACCUMULATED-GAINS-PRIOR>                     76600394
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                         36153375
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                               83075724
<AVERAGE-NET-ASSETS>                       10429498118
<PER-SHARE-NAV-BEGIN>                            37.62
<PER-SHARE-NII>                                 (0.13)
<PER-SHARE-GAIN-APPREC>                           3.87
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.42)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              40.94
<EXPENSE-RATIO>                                   0.91
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798250
<NAME> MFS SERIES TRUST II
<SERIES>
   <NUMBER> 013
   <NAME> MFS EMERGING GROWTH FUND - CLASS C
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1998
<PERIOD-START>                             DEC-01-1997
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                       7111372628
<INVESTMENTS-AT-VALUE>                     11297361951
<RECEIVABLES>                                 68933808
<ASSETS-OTHER>                                 3776631
<OTHER-ITEMS-ASSETS>                             73858
<TOTAL-ASSETS>                             11370146248
<PAYABLE-FOR-SECURITIES>                      51133497
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    274825076
<TOTAL-LIABILITIES>                          325958573
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    6885616154
<SHARES-COMMON-STOCK>                         12173372
<SHARES-COMMON-PRIOR>                          9391454
<ACCUMULATED-NII-CURRENT>                   (68680271)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       41263739
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    4185988053
<NET-ASSETS>                               11044187675
<DIVIDEND-INCOME>                              8070824
<INTEREST-INCOME>                              6253138
<OTHER-INCOME>                                (202588)
<EXPENSES-NET>                              (82714242)
<NET-INVESTMENT-INCOME>                     (68592868)
<REALIZED-GAINS-CURRENT>                      40260607
<APPREC-INCREASE-CURRENT>                    962080358
<NET-CHANGE-FROM-OPS>                        933748097
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                     (2529759)
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<NUMBER-OF-SHARES-SOLD>                       14201446
<NUMBER-OF-SHARES-REDEEMED>                 (11459845)
<SHARES-REINVESTED>                              40317
<NET-CHANGE-IN-ASSETS>                      1634318850
<ACCUMULATED-NII-PRIOR>                        (87403)
<ACCUMULATED-GAINS-PRIOR>                     76600394
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                         36153375
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                               83075724
<AVERAGE-NET-ASSETS>                       10429498118
<PER-SHARE-NAV-BEGIN>                            36.66
<PER-SHARE-NII>                                 (0.32)
<PER-SHARE-GAIN-APPREC>                           3.77
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.26)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              39.85
<EXPENSE-RATIO>                                   1.91
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798250
<NAME> MFS SERIES TRUST II
<SERIES>
   <NUMBER> 012
   <NAME> MFS EMERGING GROWTH FUND - CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1998
<PERIOD-START>                             DEC-01-1997
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                       7111372628
<INVESTMENTS-AT-VALUE>                     11297361951
<RECEIVABLES>                                 68933808
<ASSETS-OTHER>                                 3776631
<OTHER-ITEMS-ASSETS>                             73858
<TOTAL-ASSETS>                             11370146248
<PAYABLE-FOR-SECURITIES>                      51133497
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    274825076
<TOTAL-LIABILITIES>                          325958573
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    6885616154
<SHARES-COMMON-STOCK>                        149369790
<SHARES-COMMON-PRIOR>                        139575574
<ACCUMULATED-NII-CURRENT>                   (68680271)
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<ACCUMULATED-NET-GAINS>                       41263739
<OVERDISTRIBUTION-GAINS>                             0
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<NET-ASSETS>                               11044187675
<DIVIDEND-INCOME>                              8070824
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<OTHER-INCOME>                                (202588)
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<APPREC-INCREASE-CURRENT>                    962080358
<NET-CHANGE-FROM-OPS>                        933748097
<EQUALIZATION>                                       0
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<NUMBER-OF-SHARES-REDEEMED>                 (27304013)
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<ACCUMULATED-NII-PRIOR>                        (87403)
<ACCUMULATED-GAINS-PRIOR>                     76600394
<OVERDISTRIB-NII-PRIOR>                              0
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<GROSS-ADVISORY-FEES>                         36153375
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                               83075724
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<PER-SHARE-NAV-BEGIN>                            36.85
<PER-SHARE-NII>                                 (0.32)
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<PER-SHARE-DISTRIBUTIONS>                       (0.26)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              40.06
<EXPENSE-RATIO>                                   1.91
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<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798250
<NAME> MFS SERIES TRUST II
<SERIES>
   <NUMBER> 011
   <NAME> MFS EMERGING GROWTH FUND - CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1998
<PERIOD-START>                             DEC-01-1997
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                       7111372628
<INVESTMENTS-AT-VALUE>                     11297361951
<RECEIVABLES>                                 68933808
<ASSETS-OTHER>                                 3776631
<OTHER-ITEMS-ASSETS>                             73858
<TOTAL-ASSETS>                             11370146248
<PAYABLE-FOR-SECURITIES>                      51133497
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    274825076
<TOTAL-LIABILITIES>                          325958573
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    6885616154
<SHARES-COMMON-STOCK>                        110687458
<SHARES-COMMON-PRIOR>                        103227914
<ACCUMULATED-NII-CURRENT>                   (68680271)
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<ACCUMULATED-NET-GAINS>                       41263739
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    4185988053
<NET-ASSETS>                               11044187675
<DIVIDEND-INCOME>                              8070824
<INTEREST-INCOME>                              6253138
<OTHER-INCOME>                                (202588)
<EXPENSES-NET>                              (82714242)
<NET-INVESTMENT-INCOME>                     (68592868)
<REALIZED-GAINS-CURRENT>                      40260607
<APPREC-INCREASE-CURRENT>                    962080358
<NET-CHANGE-FROM-OPS>                        933748097
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                    (35451715)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      145503051
<NUMBER-OF-SHARES-REDEEMED>                (138975432)
<SHARES-REINVESTED>                             931925
<NET-CHANGE-IN-ASSETS>                      1634318850
<ACCUMULATED-NII-PRIOR>                        (87403)
<ACCUMULATED-GAINS-PRIOR>                     76600394
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                         36153375
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                               83075724
<AVERAGE-NET-ASSETS>                       10429498118
<PER-SHARE-NAV-BEGIN>                            37.54
<PER-SHARE-NII>                                 (0.17)
<PER-SHARE-GAIN-APPREC>                           3.84
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.34)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              40.87
<EXPENSE-RATIO>                                   1.16
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798250
<NAME> MFS SERIES TRUST II
<SERIES>
   <NUMBER> 023
   <NAME> MFS LARGE CAP GROWTH FUND CLASS I
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1998
<PERIOD-START>                             DEC-01-1997
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                        589385553
<INVESTMENTS-AT-VALUE>                       706458760
<RECEIVABLES>                                 21677612
<ASSETS-OTHER>                                    7123
<OTHER-ITEMS-ASSETS>                              6088
<TOTAL-ASSETS>                               728149583
<PAYABLE-FOR-SECURITIES>                      11309099
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       911247
<TOTAL-LIABILITIES>                           12220346
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     529525042
<SHARES-COMMON-STOCK>                             2116
<SHARES-COMMON-PRIOR>                              145
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       (2716762)
<ACCUMULATED-NET-GAINS>                       72058717
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     117062240
<NET-ASSETS>                                 715929237
<DIVIDEND-INCOME>                              2328948
<INTEREST-INCOME>                               921651
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (5914157)
<NET-INVESTMENT-INCOME>                      (2663558)
<REALIZED-GAINS-CURRENT>                      73967168
<APPREC-INCREASE-CURRENT>                     23404733
<NET-CHANGE-FROM-OPS>                         94708343
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                         (434)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            126
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                               1845
<NET-CHANGE-IN-ASSETS>                        63844952
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    105433305
<OVERDISTRIB-NII-PRIOR>                        (53204)
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          2592423
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                5948592
<AVERAGE-NET-ASSETS>                         694127027
<PER-SHARE-NAV-BEGIN>                            17.41
<PER-SHARE-NII>                                 (0.01)
<PER-SHARE-GAIN-APPREC>                           2.08
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (2.99)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              16.49
<EXPENSE-RATIO>                                   0.96
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798250
<NAME> MFS SERIES TRUST II
<SERIES>
   <NUMBER> 022
   <NAME> MFS LARGE CAP GROWTH FUND CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1998
<PERIOD-START>                             DEC-01-1997
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                        589385553
<INVESTMENTS-AT-VALUE>                       706458760
<RECEIVABLES>                                 21677612
<ASSETS-OTHER>                                    7123
<OTHER-ITEMS-ASSETS>                              6088
<TOTAL-ASSETS>                               728149583
<PAYABLE-FOR-SECURITIES>                      11309099
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       911247
<TOTAL-LIABILITIES>                           12220346
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     529525042
<SHARES-COMMON-STOCK>                         26435509
<SHARES-COMMON-PRIOR>                         24928127
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       (2716762)
<ACCUMULATED-NET-GAINS>                       72058717
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     117062240
<NET-ASSETS>                                 715929237
<DIVIDEND-INCOME>                              2328948
<INTEREST-INCOME>                               921651
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (5914157)
<NET-INVESTMENT-INCOME>                      (2663558)
<REALIZED-GAINS-CURRENT>                      73967168
<APPREC-INCREASE-CURRENT>                     23404733
<NET-CHANGE-FROM-OPS>                         94708343
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                    (69353928)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        1430530
<NUMBER-OF-SHARES-REDEEMED>                  (4655357)
<SHARES-REINVESTED>                            4732209
<NET-CHANGE-IN-ASSETS>                        63844952
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    105433305
<OVERDISTRIB-NII-PRIOR>                        (53204)
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          2592423
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                5948592
<AVERAGE-NET-ASSETS>                         694127027
<PER-SHARE-NAV-BEGIN>                            17.34
<PER-SHARE-NII>                                 (0.08)
<PER-SHARE-GAIN-APPREC>                           2.10
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (2.82)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              16.54
<EXPENSE-RATIO>                                   1.99
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798250
<NAME> MFS SERIES TRUST II
<SERIES>
   <NUMBER> 021
   <NAME> MFS LARGE CAP GROWTH FUND CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1998
<PERIOD-START>                             DEC-01-1997
<PERIOD-END>                               May-31-1998
<INVESTMENTS-AT-COST>                        589385553
<INVESTMENTS-AT-VALUE>                       706458760
<RECEIVABLES>                                 21677612
<ASSETS-OTHER>                                    7123
<OTHER-ITEMS-ASSETS>                              6088
<TOTAL-ASSETS>                               728149583
<PAYABLE-FOR-SECURITIES>                      11309099
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       911247
<TOTAL-LIABILITIES>                           12220346
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     529525042
<SHARES-COMMON-STOCK>                         16930320
<SHARES-COMMON-PRIOR>                         12661045
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       (2716762)
<ACCUMULATED-NET-GAINS>                       72058717
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     117062240
<NET-ASSETS>                                 715929237
<DIVIDEND-INCOME>                              2328948
<INTEREST-INCOME>                               921651
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (5914157)
<NET-INVESTMENT-INCOME>                      (2663558)
<REALIZED-GAINS-CURRENT>                      73967168
<APPREC-INCREASE-CURRENT>                     23404733
<NET-CHANGE-FROM-OPS>                         94708343
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                    (37987394)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        3659685
<NUMBER-OF-SHARES-REDEEMED>                  (1889987)
<SHARES-REINVESTED>                            2499577
<NET-CHANGE-IN-ASSETS>                        63844952
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    105433305
<OVERDISTRIB-NII-PRIOR>                        (53204)
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          2592423
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                5948592
<AVERAGE-NET-ASSETS>                         694127027
<PER-SHARE-NAV-BEGIN>                            17.36
<PER-SHARE-NII>                                 (0.02)
<PER-SHARE-GAIN-APPREC>                           2.07
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (2.95)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              16.46
<EXPENSE-RATIO>                                   1.24
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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