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<PAGE> PAGE 21
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<PAGE> PAGE 22
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<PAGE> PAGE 23
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<PAGE> PAGE 24
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<PAGE> PAGE 25
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SIGNATURE JOHN H. COSTELLO
TITLE ASSISTANT TREASURER
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<PER-SHARE-DIVIDEND>
.026
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
43
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Fidelity Institutional Cash Portfolios
<SERIES>
<NUMBER> 61
<NAME> Treasury Only Portfolio Class I
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<S>
<C>
<PERIOD-TYPE>
6-MOS
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MAR-31-1998
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SEP-30-1997
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1,161,189
<INVESTMENTS-AT-VALUE>
1,161,189
<RECEIVABLES>
20,615
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1
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0
<TOTAL-ASSETS>
1,181,805
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0
<SENIOR-LONG-TERM-DEBT>
0
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4,071
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4,071
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0
<PAID-IN-CAPITAL-COMMON>
1,177,802
<SHARES-COMMON-STOCK>
1,075,409
<SHARES-COMMON-PRIOR>
1,156,817
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0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(68)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,177,734
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
32,877
<OTHER-INCOME>
0
<EXPENSES-NET>
1,311
<NET-INVESTMENT-INCOME>
31,566
<REALIZED-GAINS-CURRENT>
94
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
31,660
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
29,168
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
1,767,221
<NUMBER-OF-SHARES-REDEEMED>
1,854,550
<SHARES-REINVESTED>
5,922
<NET-CHANGE-IN-ASSETS>
(71,441)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(162)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,669
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
2,027
<AVERAGE-NET-ASSETS>
1,120,530
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1.000
<PER-SHARE-NII>
0.026
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
0.026
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
20
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
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<NAME> Fidelity Institutional Cash Portfolios
<SERIES>
<NUMBER> 62
<NAME> Treasury Only Portfolio Class II
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<S>
<C>
<PERIOD-TYPE>
6-MOS
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MAR-31-1998
<PERIOD-END>
SEP-30-1997
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1,161,189
<INVESTMENTS-AT-VALUE>
1,161,189
<RECEIVABLES>
20,615
<ASSETS-OTHER>
1
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,181,805
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
4,071
<TOTAL-LIABILITIES>
4,071
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,177,802
<SHARES-COMMON-STOCK>
48,960
<SHARES-COMMON-PRIOR>
56,509
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(68)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,177,734
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
32,877
<OTHER-INCOME>
0
<EXPENSES-NET>
1,311
<NET-INVESTMENT-INCOME>
31,566
<REALIZED-GAINS-CURRENT>
94
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
31,660
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
1,434
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
226,390
<NUMBER-OF-SHARES-REDEEMED>
234,356
<SHARES-REINVESTED>
416
<NET-CHANGE-IN-ASSETS>
(71,441)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(162)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,669
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
2,027
<AVERAGE-NET-ASSETS>
56,639
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
0.025
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
0.025
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
35
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Fidelity Institutional Cash Portfolios
<SERIES>
<NUMBER> 63
<NAME> Treasury Only Portfolio Class III
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<S>
<C>
<PERIOD-TYPE>
6-MOS
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MAR-31-1998
<PERIOD-END>
SEP-30-1997
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1,161,189
<INVESTMENTS-AT-VALUE>
1,161,189
<RECEIVABLES>
20,615
<ASSETS-OTHER>
1
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,181,805
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
4,071
<TOTAL-LIABILITIES>
4,071
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,177,802
<SHARES-COMMON-STOCK>
53,432
<SHARES-COMMON-PRIOR>
36,010
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(68)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,177,734
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
32,877
<OTHER-INCOME>
0
<EXPENSES-NET>
1,311
<NET-INVESTMENT-INCOME>
31,566
<REALIZED-GAINS-CURRENT>
94
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
31,660
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
964
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
92,323
<NUMBER-OF-SHARES-REDEEMED>
75,315
<SHARES-REINVESTED>
414
<NET-CHANGE-IN-ASSETS>
(71,441)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(162)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,669
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
2,027
<AVERAGE-NET-ASSETS>
38,713
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
0.025
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
0.025
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
45
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Fidelity Institutional Cash Portfolios
<SERIES>
<NUMBER> 51
<NAME> Domestic Portfolio Class I
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
SEP-30-1997
<INVESTMENTS-AT-COST>
1,178,922
<INVESTMENTS-AT-VALUE>
1,178,922
<RECEIVABLES>
3,276
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,182,198
<PAYABLE-FOR-SECURITIES>
15,023
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
2,484
<TOTAL-LIABILITIES>
17,507
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,164,816
<SHARES-COMMON-STOCK>
1,089,296
<SHARES-COMMON-PRIOR>
919,649
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(125)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,164,691
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
33,869
<OTHER-INCOME>
0
<EXPENSES-NET>
1,309
<NET-INVESTMENT-INCOME>
32,560
<REALIZED-GAINS-CURRENT>
0
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
32,560
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
29,765
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
6,814,956
<NUMBER-OF-SHARES-REDEEMED>
6,661,860
<SHARES-REINVESTED>
16,552
<NET-CHANGE-IN-ASSETS>
119,193
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(124)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,192
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
1,712
<AVERAGE-NET-ASSETS>
1,082,178
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.027
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.027
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
20
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Fidelity Institutional Cash Portfolios
<SERIES>
<NUMBER> 52
<NAME> Domestic Portfolio Class II
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
SEP-30-1997
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1,178,922
<INVESTMENTS-AT-VALUE>
1,178,922
<RECEIVABLES>
3,276
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,182,198
<PAYABLE-FOR-SECURITIES>
15,023
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
2,484
<TOTAL-LIABILITIES>
17,507
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,164,816
<SHARES-COMMON-STOCK>
6,374
<SHARES-COMMON-PRIOR>
4,236
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(125)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,164,691
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
33,869
<OTHER-INCOME>
0
<EXPENSES-NET>
1,309
<NET-INVESTMENT-INCOME>
32,560
<REALIZED-GAINS-CURRENT>
0
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
32,560
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
374
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
165,092
<NUMBER-OF-SHARES-REDEEMED>
163,133
<SHARES-REINVESTED>
178
<NET-CHANGE-IN-ASSETS>
119,193
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(124)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,192
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
1,712
<AVERAGE-NET-ASSETS>
13,958
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.027
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.027
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
35
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Fidelity Institutional Cash Portfolios
<SERIES>
<NUMBER> 53
<NAME> Domestic Portfolio Class III
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<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
SEP-30-1997
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1,178,922
<INVESTMENTS-AT-VALUE>
1,178,922
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3,276
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0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,182,198
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15,023
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
2,484
<TOTAL-LIABILITIES>
17,507
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,164,816
<SHARES-COMMON-STOCK>
69,130
<SHARES-COMMON-PRIOR>
121,722
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(125)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,164,691
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
33,869
<OTHER-INCOME>
0
<EXPENSES-NET>
1,309
<NET-INVESTMENT-INCOME>
32,560
<REALIZED-GAINS-CURRENT>
0
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
32,560
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
2,420
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
437,407
<NUMBER-OF-SHARES-REDEEMED>
491,543
<SHARES-REINVESTED>
1,544
<NET-CHANGE-IN-ASSETS>
119,193
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(124)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,192
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
1,712
<AVERAGE-NET-ASSETS>
92,268
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.026
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.026
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
45
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Fidelity Institutional Cash Portfolios
<SERIES>
<NUMBER> 41
<NAME> Treasury Portfolio Class I
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<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
SEP-30-1997
<INVESTMENTS-AT-COST>
8,663,835
<INVESTMENTS-AT-VALUE>
8,663,835
<RECEIVABLES>
10,594
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6,124
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
8,680,553
<PAYABLE-FOR-SECURITIES>
82,940
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
26,828
<TOTAL-LIABILITIES>
109,768
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
8,571,477
<SHARES-COMMON-STOCK>
4,855,862
<SHARES-COMMON-PRIOR>
5,598,830
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(692)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
8,570,785
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
233,536
<OTHER-INCOME>
0
<EXPENSES-NET>
12,568
<NET-INVESTMENT-INCOME>
220,968
<REALIZED-GAINS-CURRENT>
276
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
221,244
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
132,691
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
25,314,401
<NUMBER-OF-SHARES-REDEEMED>
26,109,974
<SHARES-REINVESTED>
52,605
<NET-CHANGE-IN-ASSETS>
(741,542)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(968)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
8,350
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
14,949
<AVERAGE-NET-ASSETS>
4,911,133
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
0.027
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
0.027
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
20
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Fidelity Institutional Cash Portfolios
<SERIES>
<NUMBER> 42
<NAME> Treasury Portfolio Class II
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<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
SEP-30-1997
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8,663,835
<INVESTMENTS-AT-VALUE>
8,663,835
<RECEIVABLES>
10,594
<ASSETS-OTHER>
6,124
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
8,680,553
<PAYABLE-FOR-SECURITIES>
82,940
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
26,828
<TOTAL-LIABILITIES>
109,768
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
8,571,477
<SHARES-COMMON-STOCK>
425,623
<SHARES-COMMON-PRIOR>
89,809
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(692)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
8,570,785
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
233,536
<OTHER-INCOME>
0
<EXPENSES-NET>
12,568
<NET-INVESTMENT-INCOME>
220,968
<REALIZED-GAINS-CURRENT>
276
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
221,244
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
4,165
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
5,262,057
<NUMBER-OF-SHARES-REDEEMED>
4,927,953
<SHARES-REINVESTED>
1,710
<NET-CHANGE-IN-ASSETS>
(741,542)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(968)
<OVERDISTRIB-NII-PRIOR>
0
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0
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8,350
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0
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14,949
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158,878
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1.000
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0
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0
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0
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1.000
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35
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0
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0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Fidelity Institutional Cash Portfolios
<SERIES>
<NUMBER> 43
<NAME> Treasury Portfolio Class III
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<S>
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45
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