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<PAGE> PAGE 15
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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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SIGNATURE JOHN H. COSTELLO
TITLE ASSISTANT TREASURER
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YEAR
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
MAR-31-1998
<INVESTMENTS-AT-COST>
1,104,173
<INVESTMENTS-AT-VALUE>
1,104,173
<RECEIVABLES>
14,369
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,118,542
<PAYABLE-FOR-SECURITIES>
34,996
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
3,673
<TOTAL-LIABILITIES>
38,669
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,080,112
<SHARES-COMMON-STOCK>
942,593
<SHARES-COMMON-PRIOR>
1,156,816
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(239)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,079,873
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
64,797
<OTHER-INCOME>
0
<EXPENSES-NET>
2,625
<NET-INVESTMENT-INCOME>
62,172
<REALIZED-GAINS-CURRENT>
125
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
62,297
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
56,460
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
3,763,809
<NUMBER-OF-SHARES-REDEEMED>
3,990,429
<SHARES-REINVESTED>
12,397
<NET-CHANGE-IN-ASSETS>
(169,301)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(162)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,858
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,740
<AVERAGE-NET-ASSETS>
1,086,158
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.052
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.052
<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> 62
<NAME> Treasury Only II
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
YEAR
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
MAR-31-1998
<INVESTMENTS-AT-COST>
1,104,173
<INVESTMENTS-AT-VALUE>
1,104,173
<RECEIVABLES>
14,369
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,118,542
<PAYABLE-FOR-SECURITIES>
34,996
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
3,673
<TOTAL-LIABILITIES>
38,669
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,080,112
<SHARES-COMMON-STOCK>
36,849
<SHARES-COMMON-PRIOR>
56,509
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(239)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,079,873
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
64,797
<OTHER-INCOME>
0
<EXPENSES-NET>
2,625
<NET-INVESTMENT-INCOME>
62,172
<REALIZED-GAINS-CURRENT>
125
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
62,297
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
2,555
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
353,599
<NUMBER-OF-SHARES-REDEEMED>
374,357
<SHARES-REINVESTED>
1,098
<NET-CHANGE-IN-ASSETS>
(169,301)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(162)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,858
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,740
<AVERAGE-NET-ASSETS>
50,571
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.051
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.051
<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> 63
<NAME> Treasury Only III
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
YEAR
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
MAR-31-1998
<INVESTMENTS-AT-COST>
1,104,173
<INVESTMENTS-AT-VALUE>
1,104,173
<RECEIVABLES>
14,369
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,118,542
<PAYABLE-FOR-SECURITIES>
34,996
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
3,673
<TOTAL-LIABILITIES>
38,669
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,080,112
<SHARES-COMMON-STOCK>
100,468
<SHARES-COMMON-PRIOR>
36,010
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(239)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,079,873
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
64,797
<OTHER-INCOME>
0
<EXPENSES-NET>
2,625
<NET-INVESTMENT-INCOME>
62,172
<REALIZED-GAINS-CURRENT>
125
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
62,297
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
3,157
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
458,982
<NUMBER-OF-SHARES-REDEEMED>
395,939
<SHARES-REINVESTED>
1,415
<NET-CHANGE-IN-ASSETS>
(169,301)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(162)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,858
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,740
<AVERAGE-NET-ASSETS>
63,656
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.050
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.050
<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> 51
<NAME> Domestic Portfolio - Class I
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
YEAR
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
MAR-31-1998
<INVESTMENTS-AT-COST>
1,346,183
<INVESTMENTS-AT-VALUE>
1,346,183
<RECEIVABLES>
6,517
<ASSETS-OTHER>
1
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,352,701
<PAYABLE-FOR-SECURITIES>
71,457
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
2,658
<TOTAL-LIABILITIES>
74,115
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,278,715
<SHARES-COMMON-STOCK>
1,170,937
<SHARES-COMMON-PRIOR>
1,089,297
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(129)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,278,586
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
70,853
<OTHER-INCOME>
0
<EXPENSES-NET>
2,706
<NET-INVESTMENT-INCOME>
68,147
<REALIZED-GAINS-CURRENT>
(5)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
68,142
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
63,099
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
13,489,220
<NUMBER-OF-SHARES-REDEEMED>
13,273,277
<SHARES-REINVESTED>
35,344
<NET-CHANGE-IN-ASSETS>
233,087
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(124)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,487
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,530
<AVERAGE-NET-ASSETS>
1,147,276
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.055
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.055
<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>
YEAR
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
MAR-31-1998
<INVESTMENTS-AT-COST>
1,346,183
<INVESTMENTS-AT-VALUE>
1,346,183
<RECEIVABLES>
6,517
<ASSETS-OTHER>
1
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,352,701
<PAYABLE-FOR-SECURITIES>
71,457
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
2,658
<TOTAL-LIABILITIES>
74,115
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,278,715
<SHARES-COMMON-STOCK>
34,458
<SHARES-COMMON-PRIOR>
6,374
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(129)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,278,586
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
70,853
<OTHER-INCOME>
0
<EXPENSES-NET>
2,706
<NET-INVESTMENT-INCOME>
68,147
<REALIZED-GAINS-CURRENT>
(5)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
68,142
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
579
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
289,381
<NUMBER-OF-SHARES-REDEEMED>
259,533
<SHARES-REINVESTED>
374
<NET-CHANGE-IN-ASSETS>
233,087
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(124)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,487
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,530
<AVERAGE-NET-ASSETS>
10,801
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.054
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.054
<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
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
YEAR
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
MAR-31-1998
<INVESTMENTS-AT-COST>
1,346,183
<INVESTMENTS-AT-VALUE>
1,346,183
<RECEIVABLES>
6,517
<ASSETS-OTHER>
1
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,352,701
<PAYABLE-FOR-SECURITIES>
71,457
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
2,658
<TOTAL-LIABILITIES>
74,115
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,278,715
<SHARES-COMMON-STOCK>
73,304
<SHARES-COMMON-PRIOR>
69,130
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(129)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,278,586
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
70,853
<OTHER-INCOME>
0
<EXPENSES-NET>
2,706
<NET-INVESTMENT-INCOME>
68,147
<REALIZED-GAINS-CURRENT>
(5)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
68,142
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
4,469
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
807,975
<NUMBER-OF-SHARES-REDEEMED>
859,303
<SHARES-REINVESTED>
3,911
<NET-CHANGE-IN-ASSETS>
233,087
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(124)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,487
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,530
<AVERAGE-NET-ASSETS>
85,008
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.053
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.053
<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
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
YEAR
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
MAR-31-1998
<INVESTMENTS-AT-COST>
7,914,532
<INVESTMENTS-AT-VALUE>
7,914,532
<RECEIVABLES>
18,144
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
7,932,676
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
24,813
<TOTAL-LIABILITIES>
24,813
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
7,908,644
<SHARES-COMMON-STOCK>
4,498,843
<SHARES-COMMON-PRIOR>
4,855,862
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(781)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
7,907,863
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
471,769
<OTHER-INCOME>
0
<EXPENSES-NET>
25,566
<NET-INVESTMENT-INCOME>
446,203
<REALIZED-GAINS-CURRENT>
198
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
446,401
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
258,877
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
56,382,828
<NUMBER-OF-SHARES-REDEEMED>
57,587,789
<SHARES-REINVESTED>
104,975
<NET-CHANGE-IN-ASSETS>
(1,404,464)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(967)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
16,810
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
29,624
<AVERAGE-NET-ASSETS>
4,786,389
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.054
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.054
<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
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
YEAR
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
MAR-31-1998
<INVESTMENTS-AT-COST>
7,914,532
<INVESTMENTS-AT-VALUE>
7,914,532
<RECEIVABLES>
18,144
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
7,932,676
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
24,813
<TOTAL-LIABILITIES>
24,813
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
7,908,644
<SHARES-COMMON-STOCK>
410,416
<SHARES-COMMON-PRIOR>
425,623
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(781)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
7,907,863
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
471,769
<OTHER-INCOME>
0
<EXPENSES-NET>
25,566
<NET-INVESTMENT-INCOME>
446,203
<REALIZED-GAINS-CURRENT>
198
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
446,401
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
15,393
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
11,473,941
<NUMBER-OF-SHARES-REDEEMED>
11,156,446
<SHARES-REINVESTED>
3,111
<NET-CHANGE-IN-ASSETS>
(1,404,464)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(967)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
16,810
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
29,624
<AVERAGE-NET-ASSETS>
293,249
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.053
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.053
<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> 43
<NAME> Treasury Portfolio - Class III
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
YEAR
<FISCAL-YEAR-END>
MAR-31-1998
<PERIOD-END>
MAR-31-1998
<INVESTMENTS-AT-COST>
7,914,532
<INVESTMENTS-AT-VALUE>
7,914,532
<RECEIVABLES>
18,144
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
7,932,676
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
24,813
<TOTAL-LIABILITIES>
24,813
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
7,908,644
<SHARES-COMMON-STOCK>
2,999,235
<SHARES-COMMON-PRIOR>
3,289,855
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(781)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
7,907,863
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
471,769
<OTHER-INCOME>
0
<EXPENSES-NET>
25,566
<NET-INVESTMENT-INCOME>
446,203
<REALIZED-GAINS-CURRENT>
198
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
446,401
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
171,933
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
31,755,413
<NUMBER-OF-SHARES-REDEEMED>
32,418,433
<SHARES-REINVESTED>
37,737
<NET-CHANGE-IN-ASSETS>
(1,404,464)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(967)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
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16,810
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
29,624
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3,326,189
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.052
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0
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0
<PER-SHARE-DISTRIBUTIONS>
.052
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
.45
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
