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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 5
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<PAGE> PAGE 6
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<PAGE> PAGE 7
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<PAGE> PAGE 8
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<PAGE> PAGE 10
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<PAGE> PAGE 11
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<PAGE> PAGE 12
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<PAGE> PAGE 13
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<PAGE> PAGE 14
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<PAGE> PAGE 16
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<PAGE> PAGE 17
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<PAGE> PAGE 18
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<PAGE> PAGE 19
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<PAGE> PAGE 20
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013 A000401 PRICE WATERHOUSE LLP
013 B010401 BOSTON
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<PAGE> PAGE 21
025 A000401 TAXABLE CENTRAL CASH FUND
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<PAGE> PAGE 22
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<PAGE> PAGE 23
054 E000400 N
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<PAGE> PAGE 24
070 B010400 Y
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<PAGE> PAGE 25
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<PAGE> PAGE 26
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013 B030501 02109
015 A000501 THE CHASE MANHATTAN BANK
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<PAGE> PAGE 27
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<PAGE> PAGE 28
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<PAGE> PAGE 29
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<PAGE> PAGE 30
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<PAGE> PAGE 31
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013 B010601 BOSTON
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013 B030601 02109
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<PAGE> PAGE 32
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<PAGE> PAGE 33
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<PAGE> PAGE 34
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<PAGE> PAGE 35
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<PAGE> PAGE 36
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013 B010701 BOSTON
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<PAGE> PAGE 37
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<PAGE> PAGE 38
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<PAGE> PAGE 39
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<PAGE> PAGE 40
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SIGNATURE JOHN H. COSTELLO
TITLE ASSISTANT TREASURER
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<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
11,718
<ACCUMULATED-NET-GAINS>
498,368
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
1,352,589
<NET-ASSETS>
5,747,021
<DIVIDEND-INCOME>
21,291
<INTEREST-INCOME>
3,248
<OTHER-INCOME>
0
<EXPENSES-NET>
32,976
<NET-INVESTMENT-INCOME>
(8,437)
<REALIZED-GAINS-CURRENT>
509,881
<APPREC-INCREASE-CURRENT>
119,432
<NET-CHANGE-FROM-OPS>
620,876
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
223
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
452
<NUMBER-OF-SHARES-REDEEMED>
36
<SHARES-REINVESTED>
4
<NET-CHANGE-IN-ASSETS>
407,813
<ACCUMULATED-NII-PRIOR>
1,198
<ACCUMULATED-GAINS-PRIOR>
724,749
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
16,471
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
33,643
<AVERAGE-NET-ASSETS>
10,312
<PER-SHARE-NAV-BEGIN>
51.950
<PER-SHARE-NII>
(.270)
<PER-SHARE-GAIN-APPREC>
5.460
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
6.040
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
51.100
<EXPENSE-RATIO>
195
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 14
<NAME> Fidelity Advisor Equity Growth Institutional
Class
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
4,463,534
<INVESTMENTS-AT-VALUE>
5,816,135
<RECEIVABLES>
68,297
<ASSETS-OTHER>
6
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
5,884,438
<PAYABLE-FOR-SECURITIES>
79,922
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
57,495
<TOTAL-LIABILITIES>
137,417
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
3,907,782
<SHARES-COMMON-STOCK>
19,015
<SHARES-COMMON-PRIOR>
19,533
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
11,718
<ACCUMULATED-NET-GAINS>
498,368
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
1,352,589
<NET-ASSETS>
5,747,021
<DIVIDEND-INCOME>
21,291
<INTEREST-INCOME>
3,248
<OTHER-INCOME>
0
<EXPENSES-NET>
32,976
<NET-INVESTMENT-INCOME>
(8,437)
<REALIZED-GAINS-CURRENT>
509,881
<APPREC-INCREASE-CURRENT>
119,432
<NET-CHANGE-FROM-OPS>
620,876
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
4,267
<DISTRIBUTIONS-OF-GAINS>
118,187
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
3,546
<NUMBER-OF-SHARES-REDEEMED>
6,024
<SHARES-REINVESTED>
1,960
<NET-CHANGE-IN-ASSETS>
407,813
<ACCUMULATED-NII-PRIOR>
1,198
<ACCUMULATED-GAINS-PRIOR>
724,749
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
16,471
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
33,643
<AVERAGE-NET-ASSETS>
994,989
<PER-SHARE-NAV-BEGIN>
52.860
<PER-SHARE-NII>
.040
<PER-SHARE-GAIN-APPREC>
5.480
<PER-SHARE-DIVIDEND>
.220
<PER-SHARE-DISTRIBUTIONS>
6.070
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
52.090
<EXPENSE-RATIO>
77
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 13
<NAME> Fidelity Advisor Equity Growth Class T
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
4,463,534
<INVESTMENTS-AT-VALUE>
5,816,135
<RECEIVABLES>
68,297
<ASSETS-OTHER>
6
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
5,884,438
<PAYABLE-FOR-SECURITIES>
79,922
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
57,495
<TOTAL-LIABILITIES>
137,417
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
3,907,782
<SHARES-COMMON-STOCK>
88,110
<SHARES-COMMON-PRIOR>
80,923
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
11,718
<ACCUMULATED-NET-GAINS>
498,368
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
1,352,589
<NET-ASSETS>
5,747,021
<DIVIDEND-INCOME>
21,291
<INTEREST-INCOME>
3,248
<OTHER-INCOME>
0
<EXPENSES-NET>
32,976
<NET-INVESTMENT-INCOME>
(8,437)
<REALIZED-GAINS-CURRENT>
509,881
<APPREC-INCREASE-CURRENT>
119,432
<NET-CHANGE-FROM-OPS>
620,876
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
488,377
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
12,496
<NUMBER-OF-SHARES-REDEEMED>
15,487
<SHARES-REINVESTED>
10,178
<NET-CHANGE-IN-ASSETS>
407,813
<ACCUMULATED-NII-PRIOR>
1,198
<ACCUMULATED-GAINS-PRIOR>
724,749
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
16,471
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
33,643
<AVERAGE-NET-ASSETS>
4,416,244
<PER-SHARE-NAV-BEGIN>
51.970
<PER-SHARE-NII>
(.100)
<PER-SHARE-GAIN-APPREC>
5.420
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
6.040
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
51.250
<EXPENSE-RATIO>
131
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 53
<NAME> Fidelity Advisor TechnoQuant Growth Fund
Class A
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
32,354
<INVESTMENTS-AT-VALUE>
33,818
<RECEIVABLES>
3,831
<ASSETS-OTHER>
6
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
37,655
<PAYABLE-FOR-SECURITIES>
893
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
523
<TOTAL-LIABILITIES>
1,416
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
33,180
<SHARES-COMMON-STOCK>
340
<SHARES-COMMON-PRIOR>
472
<ACCUMULATED-NII-CURRENT>
(46)
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
1,685
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
1,420
<NET-ASSETS>
36,239
<DIVIDEND-INCOME>
223
<INTEREST-INCOME>
93
<OTHER-INCOME>
0
<EXPENSES-NET>
362
<NET-INVESTMENT-INCOME>
(46)
<REALIZED-GAINS-CURRENT>
2,032
<APPREC-INCREASE-CURRENT>
(677)
<NET-CHANGE-FROM-OPS>
1,309
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
178
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
65
<NUMBER-OF-SHARES-REDEEMED>
206
<SHARES-REINVESTED>
9
<NET-CHANGE-IN-ASSETS>
(2,297)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
916
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
112
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
379
<AVERAGE-NET-ASSETS>
4,610
<PER-SHARE-NAV-BEGIN>
11.380
<PER-SHARE-NII>
0
<PER-SHARE-GAIN-APPREC>
.400
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.370
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
11.410
<EXPENSE-RATIO>
168
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 54
<NAME> Fidelity Advisor TechnoQuant Growth Fund
Class B
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
32,354
<INVESTMENTS-AT-VALUE>
33,818
<RECEIVABLES>
3,831
<ASSETS-OTHER>
6
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
37,655
<PAYABLE-FOR-SECURITIES>
893
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
523
<TOTAL-LIABILITIES>
1,416
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
33,180
<SHARES-COMMON-STOCK>
1,064
<SHARES-COMMON-PRIOR>
1,005
<ACCUMULATED-NII-CURRENT>
(46)
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
1,685
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
1,420
<NET-ASSETS>
36,239
<DIVIDEND-INCOME>
223
<INTEREST-INCOME>
93
<OTHER-INCOME>
0
<EXPENSES-NET>
362
<NET-INVESTMENT-INCOME>
(46)
<REALIZED-GAINS-CURRENT>
2,032
<APPREC-INCREASE-CURRENT>
(677)
<NET-CHANGE-FROM-OPS>
1,309
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
337
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
128
<NUMBER-OF-SHARES-REDEEMED>
89
<SHARES-REINVESTED>
19
<NET-CHANGE-IN-ASSETS>
(2,297)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
916
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
112
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
379
<AVERAGE-NET-ASSETS>
12,024
<PER-SHARE-NAV-BEGIN>
11.310
<PER-SHARE-NII>
(.030)
<PER-SHARE-GAIN-APPREC>
.390
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.330
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
11.340
<EXPENSE-RATIO>
229
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 55
<NAME> Fidelity Advisor TechnoQuant Growth Fund
Class C
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
32,354
<INVESTMENTS-AT-VALUE>
33,818
<RECEIVABLES>
3,831
<ASSETS-OTHER>
6
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
37,655
<PAYABLE-FOR-SECURITIES>
893
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
523
<TOTAL-LIABILITIES>
1,416
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
33,180
<SHARES-COMMON-STOCK>
29
<SHARES-COMMON-PRIOR>
4
<ACCUMULATED-NII-CURRENT>
(46)
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
1,685
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
1,420
<NET-ASSETS>
36,239
<DIVIDEND-INCOME>
223
<INTEREST-INCOME>
93
<OTHER-INCOME>
0
<EXPENSES-NET>
362
<NET-INVESTMENT-INCOME>
(46)
<REALIZED-GAINS-CURRENT>
2,032
<APPREC-INCREASE-CURRENT>
(677)
<NET-CHANGE-FROM-OPS>
1,309
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
2
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
27
<NUMBER-OF-SHARES-REDEEMED>
3
<SHARES-REINVESTED>
0
<NET-CHANGE-IN-ASSETS>
(2,297)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
916
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
112
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
379
<AVERAGE-NET-ASSETS>
202
<PER-SHARE-NAV-BEGIN>
11.360
<PER-SHARE-NII>
(.050)
<PER-SHARE-GAIN-APPREC>
.400
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.360
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
11.350
<EXPENSE-RATIO>
250
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 51
<NAME> Fidelity Advisor TechnoQuant Growth Fund
Institutional class
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
32,354
<INVESTMENTS-AT-VALUE>
33,818
<RECEIVABLES>
3,831
<ASSETS-OTHER>
6
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
37,655
<PAYABLE-FOR-SECURITIES>
893
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
523
<TOTAL-LIABILITIES>
1,416
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
33,180
<SHARES-COMMON-STOCK>
131
<SHARES-COMMON-PRIOR>
128
<ACCUMULATED-NII-CURRENT>
(46)
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
1,685
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
1,420
<NET-ASSETS>
36,239
<DIVIDEND-INCOME>
223
<INTEREST-INCOME>
93
<OTHER-INCOME>
0
<EXPENSES-NET>
362
<NET-INVESTMENT-INCOME>
(46)
<REALIZED-GAINS-CURRENT>
2,032
<APPREC-INCREASE-CURRENT>
(677)
<NET-CHANGE-FROM-OPS>
1,309
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
50
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
13
<NUMBER-OF-SHARES-REDEEMED>
14
<SHARES-REINVESTED>
4
<NET-CHANGE-IN-ASSETS>
(2,297)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
916
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
112
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
379
<AVERAGE-NET-ASSETS>
1,477
<PER-SHARE-NAV-BEGIN>
11.400
<PER-SHARE-NII>
.010
<PER-SHARE-GAIN-APPREC>
.400
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.390
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
11.420
<EXPENSE-RATIO>
150
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 52
<NAME> Fidelity Advisor TechnoQuant Growth Fund
Class T
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
32,354
<INVESTMENTS-AT-VALUE>
33,818
<RECEIVABLES>
3,831
<ASSETS-OTHER>
6
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
37,655
<PAYABLE-FOR-SECURITIES>
893
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
523
<TOTAL-LIABILITIES>
1,416
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
33,180
<SHARES-COMMON-STOCK>
1,622
<SHARES-COMMON-PRIOR>
1,785
<ACCUMULATED-NII-CURRENT>
(46)
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
1,685
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
1,420
<NET-ASSETS>
36,239
<DIVIDEND-INCOME>
223
<INTEREST-INCOME>
93
<OTHER-INCOME>
0
<EXPENSES-NET>
362
<NET-INVESTMENT-INCOME>
(46)
<REALIZED-GAINS-CURRENT>
2,032
<APPREC-INCREASE-CURRENT>
(677)
<NET-CHANGE-FROM-OPS>
1,309
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
649
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
233
<NUMBER-OF-SHARES-REDEEMED>
451
<SHARES-REINVESTED>
55
<NET-CHANGE-IN-ASSETS>
(2,297)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
916
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
112
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
379
<AVERAGE-NET-ASSETS>
19,770
<PER-SHARE-NAV-BEGIN>
11.360
<PER-SHARE-NII>
(.010)
<PER-SHARE-GAIN-APPREC>
.400
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.360
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
11.390
<EXPENSE-RATIO>
181
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 41
<NAME> Fidelity Advisor Growth & Income Class A
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
396,476
<INVESTMENTS-AT-VALUE>
449,165
<RECEIVABLES>
6,379
<ASSETS-OTHER>
11
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
455,555
<PAYABLE-FOR-SECURITIES>
5,875
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,034
<TOTAL-LIABILITIES>
6,909
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
394,241
<SHARES-COMMON-STOCK>
1,127
<SHARES-COMMON-PRIOR>
559
<ACCUMULATED-NII-CURRENT>
158
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
1,559
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
52,688
<NET-ASSETS>
448,646
<DIVIDEND-INCOME>
2,128
<INTEREST-INCOME>
606
<OTHER-INCOME>
0
<EXPENSES-NET>
2,150
<NET-INVESTMENT-INCOME>
584
<REALIZED-GAINS-CURRENT>
1,640
<APPREC-INCREASE-CURRENT>
41,828
<NET-CHANGE-FROM-OPS>
44,052
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
14
<DISTRIBUTIONS-OF-GAINS>
105
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
630
<NUMBER-OF-SHARES-REDEEMED>
71
<SHARES-REINVESTED>
9
<NET-CHANGE-IN-ASSETS>
165,109
<ACCUMULATED-NII-PRIOR>
79
<ACCUMULATED-GAINS-PRIOR>
3,673
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
824
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
2,152
<AVERAGE-NET-ASSETS>
10,877
<PER-SHARE-NAV-BEGIN>
12.470
<PER-SHARE-NII>
.030
<PER-SHARE-GAIN-APPREC>
1.880
<PER-SHARE-DIVIDEND>
.020
<PER-SHARE-DISTRIBUTIONS>
.180
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.180
<EXPENSE-RATIO>
123
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 42
<NAME> Fidelity Advisor Growth & Income Class B
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
396,476
<INVESTMENTS-AT-VALUE>
449,165
<RECEIVABLES>
6,379
<ASSETS-OTHER>
11
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
455,555
<PAYABLE-FOR-SECURITIES>
5,875
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,034
<TOTAL-LIABILITIES>
6,909
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
394,241
<SHARES-COMMON-STOCK>
5,161
<SHARES-COMMON-PRIOR>
2,322
<ACCUMULATED-NII-CURRENT>
158
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
1,559
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
52,688
<NET-ASSETS>
448,646
<DIVIDEND-INCOME>
2,128
<INTEREST-INCOME>
606
<OTHER-INCOME>
0
<EXPENSES-NET>
2,150
<NET-INVESTMENT-INCOME>
584
<REALIZED-GAINS-CURRENT>
1,640
<APPREC-INCREASE-CURRENT>
41,828
<NET-CHANGE-FROM-OPS>
44,052
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
413
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
2,997
<NUMBER-OF-SHARES-REDEEMED>
186
<SHARES-REINVESTED>
28
<NET-CHANGE-IN-ASSETS>
165,109
<ACCUMULATED-NII-PRIOR>
79
<ACCUMULATED-GAINS-PRIOR>
3,673
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
824
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
2,152
<AVERAGE-NET-ASSETS>
46,330
<PER-SHARE-NAV-BEGIN>
12.410
<PER-SHARE-NII>
(.010)
<PER-SHARE-GAIN-APPREC>
1.870
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.170
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.100
<EXPENSE-RATIO>
189
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 44
<NAME> Fidelity Advisor Growth & Income Class C
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
396,476
<INVESTMENTS-AT-VALUE>
449,165
<RECEIVABLES>
6,379
<ASSETS-OTHER>
11
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
455,555
<PAYABLE-FOR-SECURITIES>
5,875
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,034
<TOTAL-LIABILITIES>
6,909
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
394,241
<SHARES-COMMON-STOCK>
1,278
<SHARES-COMMON-PRIOR>
31
<ACCUMULATED-NII-CURRENT>
158
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
1,559
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
52,688
<NET-ASSETS>
448,646
<DIVIDEND-INCOME>
2,128
<INTEREST-INCOME>
606
<OTHER-INCOME>
0
<EXPENSES-NET>
2,150
<NET-INVESTMENT-INCOME>
584
<REALIZED-GAINS-CURRENT>
1,640
<APPREC-INCREASE-CURRENT>
41,828
<NET-CHANGE-FROM-OPS>
44,052
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
1
<DISTRIBUTIONS-OF-GAINS>
11
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
1,271
<NUMBER-OF-SHARES-REDEEMED>
25
<SHARES-REINVESTED>
1
<NET-CHANGE-IN-ASSETS>
165,109
<ACCUMULATED-NII-PRIOR>
79
<ACCUMULATED-GAINS-PRIOR>
3,673
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
824
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
2,152
<AVERAGE-NET-ASSETS>
6,903
<PER-SHARE-NAV-BEGIN>
12.450
<PER-SHARE-NII>
(.030)
<PER-SHARE-GAIN-APPREC>
1.860
<PER-SHARE-DIVIDEND>
.010
<PER-SHARE-DISTRIBUTIONS>
.180
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.090
<EXPENSE-RATIO>
222
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 45
<NAME> Fidelity Advisor Growth & Income Institutional
Class
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
396,476
<INVESTMENTS-AT-VALUE>
449,165
<RECEIVABLES>
6,379
<ASSETS-OTHER>
11
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
455,555
<PAYABLE-FOR-SECURITIES>
5,875
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,034
<TOTAL-LIABILITIES>
6,909
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
394,241
<SHARES-COMMON-STOCK>
6,182
<SHARES-COMMON-PRIOR>
5,926
<ACCUMULATED-NII-CURRENT>
158
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
1,559
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
52,688
<NET-ASSETS>
448,646
<DIVIDEND-INCOME>
2,128
<INTEREST-INCOME>
606
<OTHER-INCOME>
0
<EXPENSES-NET>
2,150
<NET-INVESTMENT-INCOME>
584
<REALIZED-GAINS-CURRENT>
1,640
<APPREC-INCREASE-CURRENT>
41,828
<NET-CHANGE-FROM-OPS>
44,052
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
235
<DISTRIBUTIONS-OF-GAINS>
1,060
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
1,114
<NUMBER-OF-SHARES-REDEEMED>
951
<SHARES-REINVESTED>
93
<NET-CHANGE-IN-ASSETS>
165,109
<ACCUMULATED-NII-PRIOR>
79
<ACCUMULATED-GAINS-PRIOR>
3,673
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
824
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
2,152
<AVERAGE-NET-ASSETS>
79,955
<PER-SHARE-NAV-BEGIN>
12.470
<PER-SHARE-NII>
.060
<PER-SHARE-GAIN-APPREC>
1.880
<PER-SHARE-DIVIDEND>
.040
<PER-SHARE-DISTRIBUTIONS>
.180
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.190
<EXPENSE-RATIO>
78
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 43
<NAME> Fidelity Advisor Growth & Income Class T
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
396,476
<INVESTMENTS-AT-VALUE>
449,165
<RECEIVABLES>
6,379
<ASSETS-OTHER>
11
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
455,555
<PAYABLE-FOR-SECURITIES>
5,875
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,034
<TOTAL-LIABILITIES>
6,909
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
394,241
<SHARES-COMMON-STOCK>
17,961
<SHARES-COMMON-PRIOR>
10,713
<ACCUMULATED-NII-CURRENT>
158
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
1,559
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
52,688
<NET-ASSETS>
448,646
<DIVIDEND-INCOME>
2,128
<INTEREST-INCOME>
606
<OTHER-INCOME>
0
<EXPENSES-NET>
2,150
<NET-INVESTMENT-INCOME>
584
<REALIZED-GAINS-CURRENT>
1,640
<APPREC-INCREASE-CURRENT>
41,828
<NET-CHANGE-FROM-OPS>
44,052
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
255
<DISTRIBUTIONS-OF-GAINS>
1,993
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
8,642
<NUMBER-OF-SHARES-REDEEMED>
1,569
<SHARES-REINVESTED>
175
<NET-CHANGE-IN-ASSETS>
165,109
<ACCUMULATED-NII-PRIOR>
79
<ACCUMULATED-GAINS-PRIOR>
3,673
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
824
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
2,152
<AVERAGE-NET-ASSETS>
191,151
<PER-SHARE-NAV-BEGIN>
12.460
<PER-SHARE-NII>
.020
<PER-SHARE-GAIN-APPREC>
1.870
<PER-SHARE-DIVIDEND>
.020
<PER-SHARE-DISTRIBUTIONS>
.180
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.150
<EXPENSE-RATIO>
135
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 34
<NAME> Fidelity Advisor Mid Cap Fund
Class A
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
441,132
<INVESTMENTS-AT-VALUE>
501,576
<RECEIVABLES>
11,136
<ASSETS-OTHER>
391
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
513,103
<PAYABLE-FOR-SECURITIES>
7,464
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,410
<TOTAL-LIABILITIES>
8,874
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
416,320
<SHARES-COMMON-STOCK>
609
<SHARES-COMMON-PRIOR>
333
<ACCUMULATED-NII-CURRENT>
(1,567)
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
29,032
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
60,444
<NET-ASSETS>
504,229
<DIVIDEND-INCOME>
1,337
<INTEREST-INCOME>
468
<OTHER-INCOME>
0
<EXPENSES-NET>
3,372
<NET-INVESTMENT-INCOME>
(1,567)
<REALIZED-GAINS-CURRENT>
29,878
<APPREC-INCREASE-CURRENT>
22,616
<NET-CHANGE-FROM-OPS>
50,927
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
510
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
284
<NUMBER-OF-SHARES-REDEEMED>
47
<SHARES-REINVESTED>
39
<NET-CHANGE-IN-ASSETS>
83,271
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
52,086
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,389
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,443
<AVERAGE-NET-ASSETS>
6,687
<PER-SHARE-NAV-BEGIN>
14.040
<PER-SHARE-NII>
(.040)
<PER-SHARE-GAIN-APPREC>
1.530
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
1.450
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.080
<EXPENSE-RATIO>
143
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 32
<NAME> Fidelity Advisor Mid Cap Fund
Class B
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
441,132
<INVESTMENTS-AT-VALUE>
501,576
<RECEIVABLES>
11,136
<ASSETS-OTHER>
391
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
513,103
<PAYABLE-FOR-SECURITIES>
7,464
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,410
<TOTAL-LIABILITIES>
8,874
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
416,320
<SHARES-COMMON-STOCK>
5,524
<SHARES-COMMON-PRIOR>
4,214
<ACCUMULATED-NII-CURRENT>
(1,567)
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
29,032
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
60,444
<NET-ASSETS>
504,229
<DIVIDEND-INCOME>
1,337
<INTEREST-INCOME>
468
<OTHER-INCOME>
0
<EXPENSES-NET>
3,372
<NET-INVESTMENT-INCOME>
(1,567)
<REALIZED-GAINS-CURRENT>
29,878
<APPREC-INCREASE-CURRENT>
22,616
<NET-CHANGE-FROM-OPS>
50,927
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
5,942
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
1,213
<NUMBER-OF-SHARES-REDEEMED>
329
<SHARES-REINVESTED>
426
<NET-CHANGE-IN-ASSETS>
83,271
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
52,086
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,389
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,443
<AVERAGE-NET-ASSETS>
68,501
<PER-SHARE-NAV-BEGIN>
13.940
<PER-SHARE-NII>
(.080)
<PER-SHARE-GAIN-APPREC>
1.530
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
1.390
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.000
<EXPENSE-RATIO>
197
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 35
<NAME> Fidelity Advisor Mid Cap Fund
Class C
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
441,132
<INVESTMENTS-AT-VALUE>
501,576
<RECEIVABLES>
11,136
<ASSETS-OTHER>
391
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
513,103
<PAYABLE-FOR-SECURITIES>
7,464
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,410
<TOTAL-LIABILITIES>
8,874
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
416,320
<SHARES-COMMON-STOCK>
476
<SHARES-COMMON-PRIOR>
25
<ACCUMULATED-NII-CURRENT>
(1,567)
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
29,032
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
60,444
<NET-ASSETS>
504,229
<DIVIDEND-INCOME>
1,337
<INTEREST-INCOME>
468
<OTHER-INCOME>
0
<EXPENSES-NET>
3,372
<NET-INVESTMENT-INCOME>
(1,567)
<REALIZED-GAINS-CURRENT>
29,878
<APPREC-INCREASE-CURRENT>
22,616
<NET-CHANGE-FROM-OPS>
50,927
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
66
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
452
<NUMBER-OF-SHARES-REDEEMED>
6
<SHARES-REINVESTED>
5
<NET-CHANGE-IN-ASSETS>
83,271
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
52,086
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,389
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,443
<AVERAGE-NET-ASSETS>
3,267
<PER-SHARE-NAV-BEGIN>
14.080
<PER-SHARE-NII>
(.110)
<PER-SHARE-GAIN-APPREC>
1.530
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
1.440
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.060
<EXPENSE-RATIO>
248
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 33
<NAME> Fidelity Advisor Mid Cap Fund
Institutional Class
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
441,132
<INVESTMENTS-AT-VALUE>
501,576
<RECEIVABLES>
11,136
<ASSETS-OTHER>
391
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
513,103
<PAYABLE-FOR-SECURITIES>
7,464
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,410
<TOTAL-LIABILITIES>
8,874
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
416,320
<SHARES-COMMON-STOCK>
2,699
<SHARES-COMMON-PRIOR>
2,163
<ACCUMULATED-NII-CURRENT>
(1,567)
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
29,032
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
60,444
<NET-ASSETS>
504,229
<DIVIDEND-INCOME>
1,337
<INTEREST-INCOME>
468
<OTHER-INCOME>
0
<EXPENSES-NET>
3,372
<NET-INVESTMENT-INCOME>
(1,567)
<REALIZED-GAINS-CURRENT>
29,878
<APPREC-INCREASE-CURRENT>
22,616
<NET-CHANGE-FROM-OPS>
50,927
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
3,177
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
1,087
<NUMBER-OF-SHARES-REDEEMED>
790
<SHARES-REINVESTED>
239
<NET-CHANGE-IN-ASSETS>
83,271
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
52,086
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,389
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,443
<AVERAGE-NET-ASSETS>
33,474
<PER-SHARE-NAV-BEGIN>
14.120
<PER-SHARE-NII>
(.010)
<PER-SHARE-GAIN-APPREC>
1.540
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
1.490
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.160
<EXPENSE-RATIO>
91
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 31
<NAME> Fidelity Advisor Mid Cap Fund
Class T
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
441,132
<INVESTMENTS-AT-VALUE>
501,576
<RECEIVABLES>
11,136
<ASSETS-OTHER>
391
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
513,103
<PAYABLE-FOR-SECURITIES>
7,464
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,410
<TOTAL-LIABILITIES>
8,874
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
416,320
<SHARES-COMMON-STOCK>
26,413
<SHARES-COMMON-PRIOR>
23,190
<ACCUMULATED-NII-CURRENT>
(1,567)
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
29,032
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
60,444
<NET-ASSETS>
504,229
<DIVIDEND-INCOME>
1,337
<INTEREST-INCOME>
468
<OTHER-INCOME>
0
<EXPENSES-NET>
3,372
<NET-INVESTMENT-INCOME>
(1,567)
<REALIZED-GAINS-CURRENT>
29,878
<APPREC-INCREASE-CURRENT>
22,616
<NET-CHANGE-FROM-OPS>
50,927
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
33,726
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
6,490
<NUMBER-OF-SHARES-REDEEMED>
5,833
<SHARES-REINVESTED>
2,566
<NET-CHANGE-IN-ASSETS>
83,271
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
52,086
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,389
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,443
<AVERAGE-NET-ASSETS>
358,096
<PER-SHARE-NAV-BEGIN>
14.090
<PER-SHARE-NII>
(.040)
<PER-SHARE-GAIN-APPREC>
1.530
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
1.440
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.140
<EXPENSE-RATIO>
144
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 21
<NAME> Fidelity Advisor Large Cap Fund
Class A
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
88,856
<INVESTMENTS-AT-VALUE>
100,085
<RECEIVABLES>
434
<ASSETS-OTHER>
7
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
100,526
<PAYABLE-FOR-SECURITIES>
32
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
664
<TOTAL-LIABILITIES>
696
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
78,685
<SHARES-COMMON-STOCK>
207
<SHARES-COMMON-PRIOR>
167
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
187
<ACCUMULATED-NET-GAINS>
10,103
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
11,229
<NET-ASSETS>
99,830
<DIVIDEND-INCOME>
407
<INTEREST-INCOME>
111
<OTHER-INCOME>
0
<EXPENSES-NET>
693
<NET-INVESTMENT-INCOME>
(175)
<REALIZED-GAINS-CURRENT>
10,245
<APPREC-INCREASE-CURRENT>
733
<NET-CHANGE-FROM-OPS>
10,803
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
145
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
63
<NUMBER-OF-SHARES-REDEEMED>
34
<SHARES-REINVESTED>
11
<NET-CHANGE-IN-ASSETS>
27,221
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
4,850
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
256
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
716
<AVERAGE-NET-ASSETS>
2,700
<PER-SHARE-NAV-BEGIN>
13.960
<PER-SHARE-NII>
(.030)
<PER-SHARE-GAIN-APPREC>
1.830
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.830
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.930
<EXPENSE-RATIO>
171
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 22
<NAME> Fidelity Advisor Large Cap Fund
Class B
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
88,856
<INVESTMENTS-AT-VALUE>
100,085
<RECEIVABLES>
434
<ASSETS-OTHER>
7
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
100,526
<PAYABLE-FOR-SECURITIES>
32
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
664
<TOTAL-LIABILITIES>
696
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
78,685
<SHARES-COMMON-STOCK>
1,800
<SHARES-COMMON-PRIOR>
1,511
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
187
<ACCUMULATED-NET-GAINS>
10,103
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
11,229
<NET-ASSETS>
99,830
<DIVIDEND-INCOME>
407
<INTEREST-INCOME>
111
<OTHER-INCOME>
0
<EXPENSES-NET>
693
<NET-INVESTMENT-INCOME>
(175)
<REALIZED-GAINS-CURRENT>
10,245
<APPREC-INCREASE-CURRENT>
733
<NET-CHANGE-FROM-OPS>
10,803
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
1,174
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
329
<NUMBER-OF-SHARES-REDEEMED>
125
<SHARES-REINVESTED>
85
<NET-CHANGE-IN-ASSETS>
27,221
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
4,850
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
256
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
716
<AVERAGE-NET-ASSETS>
24,107
<PER-SHARE-NAV-BEGIN>
13.850
<PER-SHARE-NII>
(.060)
<PER-SHARE-GAIN-APPREC>
1.850
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.760
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.880
<EXPENSE-RATIO>
208
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 25
<NAME> Fidelity Advisor Large Cap Fund
Class C
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
88,856
<INVESTMENTS-AT-VALUE>
100,085
<RECEIVABLES>
434
<ASSETS-OTHER>
7
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
100,526
<PAYABLE-FOR-SECURITIES>
32
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
664
<TOTAL-LIABILITIES>
696
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
78,685
<SHARES-COMMON-STOCK>
63
<SHARES-COMMON-PRIOR>
3
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
187
<ACCUMULATED-NET-GAINS>
10,103
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
11,229
<NET-ASSETS>
99,830
<DIVIDEND-INCOME>
407
<INTEREST-INCOME>
111
<OTHER-INCOME>
0
<EXPENSES-NET>
693
<NET-INVESTMENT-INCOME>
(175)
<REALIZED-GAINS-CURRENT>
10,245
<APPREC-INCREASE-CURRENT>
733
<NET-CHANGE-FROM-OPS>
10,803
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
5
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
62
<NUMBER-OF-SHARES-REDEEMED>
2
<SHARES-REINVESTED>
0
<NET-CHANGE-IN-ASSETS>
27,221
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
4,850
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
256
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
716
<AVERAGE-NET-ASSETS>
355
<PER-SHARE-NAV-BEGIN>
13.980
<PER-SHARE-NII>
(.090)
<PER-SHARE-GAIN-APPREC>
1.880
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.820
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.950
<EXPENSE-RATIO>
250
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 23
<NAME> Fidelity Advisor Large Cap Fund
Institutional Class
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
88,856
<INVESTMENTS-AT-VALUE>
100,085
<RECEIVABLES>
434
<ASSETS-OTHER>
7
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
100,526
<PAYABLE-FOR-SECURITIES>
32
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
664
<TOTAL-LIABILITIES>
696
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
78,685
<SHARES-COMMON-STOCK>
731
<SHARES-COMMON-PRIOR>
467
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
187
<ACCUMULATED-NET-GAINS>
10,103
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
11,229
<NET-ASSETS>
99,830
<DIVIDEND-INCOME>
407
<INTEREST-INCOME>
111
<OTHER-INCOME>
0
<EXPENSES-NET>
693
<NET-INVESTMENT-INCOME>
(175)
<REALIZED-GAINS-CURRENT>
10,245
<APPREC-INCREASE-CURRENT>
733
<NET-CHANGE-FROM-OPS>
10,803
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
12
<DISTRIBUTIONS-OF-GAINS>
374
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
345
<NUMBER-OF-SHARES-REDEEMED>
109
<SHARES-REINVESTED>
28
<NET-CHANGE-IN-ASSETS>
27,221
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
4,850
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
256
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
716
<AVERAGE-NET-ASSETS>
6,660
<PER-SHARE-NAV-BEGIN>
14.050
<PER-SHARE-NII>
.010
<PER-SHARE-GAIN-APPREC>
1.850
<PER-SHARE-DIVIDEND>
.030
<PER-SHARE-DISTRIBUTIONS>
.840
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
15.040
<EXPENSE-RATIO>
115
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 24
<NAME> Fidelity Advisor Large Cap Fund
Class T
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
88,856
<INVESTMENTS-AT-VALUE>
100,085
<RECEIVABLES>
434
<ASSETS-OTHER>
7
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
100,526
<PAYABLE-FOR-SECURITIES>
32
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
664
<TOTAL-LIABILITIES>
696
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
78,685
<SHARES-COMMON-STOCK>
3,870
<SHARES-COMMON-PRIOR>
3,057
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
187
<ACCUMULATED-NET-GAINS>
10,103
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
11,229
<NET-ASSETS>
99,830
<DIVIDEND-INCOME>
407
<INTEREST-INCOME>
111
<OTHER-INCOME>
0
<EXPENSES-NET>
693
<NET-INVESTMENT-INCOME>
(175)
<REALIZED-GAINS-CURRENT>
10,245
<APPREC-INCREASE-CURRENT>
733
<NET-CHANGE-FROM-OPS>
10,803
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
2,603
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
1,100
<NUMBER-OF-SHARES-REDEEMED>
481
<SHARES-REINVESTED>
194
<NET-CHANGE-IN-ASSETS>
27,221
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
4,850
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
256
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
716
<AVERAGE-NET-ASSETS>
52,644
<PER-SHARE-NAV-BEGIN>
13.980
<PER-SHARE-NII>
(.020)
<PER-SHARE-GAIN-APPREC>
1.850
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.820
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.990
<EXPENSE-RATIO>
152
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 64
<NAME> Fidelity Advisor Growth Opportunities Fund
Class A
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
17,637,963
<INVESTMENTS-AT-VALUE>
25,068,038
<RECEIVABLES>
448,765
<ASSETS-OTHER>
6
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
25,516,809
<PAYABLE-FOR-SECURITIES>
113,968
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
65,635
<TOTAL-LIABILITIES>
179,603
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
16,988,142
<SHARES-COMMON-STOCK>
5,953
<SHARES-COMMON-PRIOR>
3,243
<ACCUMULATED-NII-CURRENT>
84,871
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
834,156
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
7,430,037
<NET-ASSETS>
25,337,206
<DIVIDEND-INCOME>
131,696
<INTEREST-INCOME>
118,710
<OTHER-INCOME>
0
<EXPENSES-NET>
136,805
<NET-INVESTMENT-INCOME>
113,601
<REALIZED-GAINS-CURRENT>
849,854
<APPREC-INCREASE-CURRENT>
1,640,412
<NET-CHANGE-FROM-OPS>
2,603,867
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
1,998
<DISTRIBUTIONS-OF-GAINS>
8,735
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
2,870
<NUMBER-OF-SHARES-REDEEMED>
405
<SHARES-REINVESTED>
245
<NET-CHANGE-IN-ASSETS>
3,963,686
<ACCUMULATED-NII-PRIOR>
201,723
<ACCUMULATED-GAINS-PRIOR>
1,252,830
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
55,726
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
137,717
<AVERAGE-NET-ASSETS>
204,137
<PER-SHARE-NAV-BEGIN>
44.020
<PER-SHARE-NII>
.240
<PER-SHARE-GAIN-APPREC>
4.680
<PER-SHARE-DIVIDEND>
.600
<PER-SHARE-DISTRIBUTIONS>
2.600
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
45.740
<EXPENSE-RATIO>
101
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000722574
<NAME> Fidelity Advisor Series I
<SERIES>
<NUMBER> 62
<NAME> Fidelity Advisor Growth Opportunities Fund
Class B
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
nov-30-1998
<PERIOD-END>
may-31-1998
<INVESTMENTS-AT-COST>
17,637,963
<INVESTMENTS-AT-VALUE>
25,068,038
<RECEIVABLES>
448,765
<ASSETS-OTHER>
6
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
25,516,809
<PAYABLE-FOR-SECURITIES>
113,968
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
65,635
<TOTAL-LIABILITIES>
179,603
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
16,988,142
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<NAME> Fidelity Advisor Series I
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<NAME> Fidelity Advisor Series I
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