<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000205323
<NAME> Fidelity Commonwealth Trust
<SERIES>
<NUMBER> 61
<NAME> Fidelity Mid Cap Stock Fund
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
APR-30-2001
<PERIOD-END>
OCT-31-2000
<INVESTMENTS-AT-COST>
5,582,443
<INVESTMENTS-AT-VALUE>
6,527,433
<RECEIVABLES>
209,798
<ASSETS-OTHER>
505
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
6,737,736
<PAYABLE-FOR-SECURITIES>
336,638
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
98,085
<TOTAL-LIABILITIES>
434,723
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
5,186,598
<SHARES-COMMON-STOCK>
239,708
<SHARES-COMMON-PRIOR>
162,008
<ACCUMULATED-NII-CURRENT>
12,302
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
161,682
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
942,431
<NET-ASSETS>
6,303,013
<DIVIDEND-INCOME>
11,803
<INTEREST-INCOME>
21,157
<OTHER-INCOME>
800
<EXPENSES-NET>
21,458
<NET-INVESTMENT-INCOME>
12,302
<REALIZED-GAINS-CURRENT>
230,378
<APPREC-INCREASE-CURRENT>
299,380
<NET-CHANGE-FROM-OPS>
542,060
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
0
<DISTRIBUTIONS-OF-GAINS>
292,997
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
105,678
<NUMBER-OF-SHARES-REDEEMED>
39,786
<SHARES-REINVESTED>
11,808
<NET-CHANGE-IN-ASSETS>
2,231,965
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
288,212
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
16,727
<INTEREST-EXPENSE>
13
<GROSS-EXPENSE>
22,596
<AVERAGE-NET-ASSETS>
5,043,818
<PER-SHARE-NAV-BEGIN>
25.130
<PER-SHARE-NII>
.050
<PER-SHARE-GAIN-APPREC>
2.860
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
1.750
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
26.290
<EXPENSE-RATIO>
88
</TABLE>
