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SIGNATURE JOHN P. SALMON
TITLE
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
SEPTEMBER 30, 1998 SEMI-ANNUAL REPORT AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
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<SERIES>
<NUMBER> 1
<NAME> CALAMOS GROWTH AND INCOME FUND
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</TABLE>
<TABLE> <S> <C>
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<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
SEPTEMBER 30, 1998 SEMI-ANNUAL REPORT AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
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<SERIES>
<NUMBER> 2
<NAME> CALAMOS STRATEGIC INCOME FUND
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<PER-SHARE-NII> 0.14
<PER-SHARE-GAIN-APPREC> (0.12)
<PER-SHARE-DIVIDEND> 0.14
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.79
<EXPENSE-RATIO> 2.18
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
SEPTEMBER 30, 1998 SEMI-ANNUAL REPORT AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER> 3
<NAME> CALAMOS GROWTH FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1998
<PERIOD-END> SEP-30-1998
<INVESTMENTS-AT-COST> 9,333,015
<INVESTMENTS-AT-VALUE> 9,165,837
<RECEIVABLES> 8,662
<ASSETS-OTHER> 1,246,200
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 10,600,699
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 35,267
<TOTAL-LIABILITIES> 35,267
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 10,730,203
<SHARES-COMMON-STOCK> 632,849
<SHARES-COMMON-PRIOR> 594,204
<ACCUMULATED-NII-CURRENT> (83,446)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 85,855
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (167,179)
<NET-ASSETS> 10,565,433
<DIVIDEND-INCOME> 10,179
<INTEREST-INCOME> 23,559
<OTHER-INCOME> 0
<EXPENSES-NET> 117,184
<NET-INVESTMENT-INCOME> (83,446)
<REALIZED-GAINS-CURRENT> 279,432
<APPREC-INCREASE-CURRENT> (2,348,519)
<NET-CHANGE-FROM-OPS> (2,152,533)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 61,274
<NUMBER-OF-SHARES-REDEEMED> 22,635
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (1,357,924)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 193,577
<GROSS-ADVISORY-FEES> 60,354
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 144,980
<AVERAGE-NET-ASSETS> 10,552,738
<PER-SHARE-NAV-BEGIN> 20.06
<PER-SHARE-NII> (0.14)
<PER-SHARE-GAIN-APPREC> (3.23)
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 16.69
<EXPENSE-RATIO> 2.01
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
SEPTEMBER 30, 1998 SEMI-ANNUAL REPORT AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER> 4
<NAME> CALAMOS CONVERTIBLE FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1998
<PERIOD-END> SEP-30-1998
<INVESTMENTS-AT-COST> 104,263,072
<INVESTMENTS-AT-VALUE> 103,813,906
<RECEIVABLES> 3,690,372
<ASSETS-OTHER> 11,722,582
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 119,226,860
<PAYABLE-FOR-SECURITIES> 1,596,936
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 322,609
<TOTAL-LIABILITIES> 1,929,545
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 113,413,550
<SHARES-COMMON-STOCK> 7,534,258
<SHARES-COMMON-PRIOR> 6,449,617
<ACCUMULATED-NII-CURRENT> (38,216)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 4,245,486
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (323,505)
<NET-ASSETS> 117,297,315
<DIVIDEND-INCOME> 626,694
<INTEREST-INCOME> 1,694,956
<OTHER-INCOME> 0
<EXPENSES-NET> 804,006
<NET-INVESTMENT-INCOME> 1,517,644
<REALIZED-GAINS-CURRENT> 5,625,385
<APPREC-INCREASE-CURRENT> (19,386,301)
<NET-CHANGE-FROM-OPS> (12,243,272)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 1,642,899
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,711,616
<NUMBER-OF-SHARES-REDEEMED> 662,165
<SHARES-REINVESTED> 35,192
<NET-CHANGE-IN-ASSETS> 4,831,027
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 1,292,860
<GROSS-ADVISORY-FEES> 452,251
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 804,006
<AVERAGE-NET-ASSETS> 65,293,005
<PER-SHARE-NAV-BEGIN> 17.43
<PER-SHARE-NII> 0.21
<PER-SHARE-GAIN-APPREC> (1.85)
<PER-SHARE-DIVIDEND> 0.22
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 15.57
<EXPENSE-RATIO> 1.48
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
SEPTEMBER 30, 1998 SEMI-ANNUAL REPORT AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER> 5
<NAME> CALAMOS GLOBAL GROWTH AND INCOME FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1998
<PERIOD-END> SEP-30-1998
<INVESTMENTS-AT-COST> 5,054,084
<INVESTMENTS-AT-VALUE> 5,162,314
<RECEIVABLES> 624,800
<ASSETS-OTHER> 1,148,645
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 6,935,759
<PAYABLE-FOR-SECURITIES> 30,948
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 28,132
<TOTAL-LIABILITIES> 59,080
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 6,584,748
<SHARES-COMMON-STOCK> 1,173,133
<SHARES-COMMON-PRIOR> 1,037,778
<ACCUMULATED-NII-CURRENT> (59,602)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 210,453
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 141,080
<NET-ASSETS> 6,876,679
<DIVIDEND-INCOME> 35,505
<INTEREST-INCOME> 63,373
<OTHER-INCOME> 0
<EXPENSES-NET> 74,062
<NET-INVESTMENT-INCOME> 24,816
<REALIZED-GAINS-CURRENT> 453,873
<APPREC-INCREASE-CURRENT> (1,154,226)
<NET-CHANGE-FROM-OPS> (675,537)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 147,631
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 168,864
<NUMBER-OF-SHARES-REDEEMED> 54,889
<SHARES-REINVESTED> 21,739
<NET-CHANGE-IN-ASSETS> 69,145
<ACCUMULATED-NII-PRIOR> 68,156
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 248,364
<GROSS-ADVISORY-FEES> 36,747
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 114,545
<AVERAGE-NET-ASSETS> 6,185,611
<PER-SHARE-NAV-BEGIN> 6.56
<PER-SHARE-NII> 0.01
<PER-SHARE-GAIN-APPREC> (0.58)
<PER-SHARE-DIVIDEND> 0.13
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.86
<EXPENSE-RATIO> 2.01
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
