<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>
YEAR
<FISCAL-YEAR-END>
APR-30-2000
<PERIOD-END>
APR-30-2000
<INVESTMENTS-AT-COST>
3,476,222
<INVESTMENTS-AT-VALUE>
4,119,235
<RECEIVABLES>
65,386
<ASSETS-OTHER>
3,932
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
4,188,553
<PAYABLE-FOR-SECURITIES>
52,231
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
65,274
<TOTAL-LIABILITIES>
117,505
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
3,139,785
<SHARES-COMMON-STOCK>
162,008
<SHARES-COMMON-PRIOR>
88,914
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
288,212
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
643,051
<NET-ASSETS>
4,071,048
<DIVIDEND-INCOME>
8,473
<INTEREST-INCOME>
6,491
<OTHER-INCOME>
392
<EXPENSES-NET>
20,004
<NET-INVESTMENT-INCOME>
(4,648)
<REALIZED-GAINS-CURRENT>
422,079
<APPREC-INCREASE-CURRENT>
332,703
<NET-CHANGE-FROM-OPS>
750,134
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
886
<DISTRIBUTIONS-OF-GAINS>
238,596
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
130,995
<NUMBER-OF-SHARES-REDEEMED>
70,072
<SHARES-REINVESTED>
12,171
<NET-CHANGE-IN-ASSETS>
2,362,472
<ACCUMULATED-NII-PRIOR>
1,420
<ACCUMULATED-GAINS-PRIOR>
133,848
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
14,320
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
20,789
<AVERAGE-NET-ASSETS>
2,334,800
<PER-SHARE-NAV-BEGIN>
19.220
<PER-SHARE-NII>
(.040)
<PER-SHARE-GAIN-APPREC>
8.550
<PER-SHARE-DIVIDEND>
.010
<PER-SHARE-DISTRIBUTIONS>
2.590
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
25.130
<EXPENSE-RATIO>
89
</TABLE>
