Form N-1A Supplement |
Aug. 11, 2026 |
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| Calamos High Income Opportunities Fund | Calamos High Income Opportunities Fund | |||||||
| Prospectus [Line Items] | |||||||
| Supplement to Prospectus [Text Block] | CALAMOS INVESTMENT TRUST (the “Trust”)
Supplement dated August 11, 2026 to the CALAMOS® FAMILY OF FUNDS
Prospectus and Statement of Additional Information, each dated February 27, 2026, as supplemented from time to time
This supplement updates certain information contained in the Prospectus and Statement of Additional Information noted above and should be attached to the Prospectus and Statement of Additional Information and retained for future reference.
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| Calamos International Growth Fund | Calamos International Growth Fund | |||||||
| Prospectus [Line Items] | |||||||
| Supplement to Prospectus [Text Block] | CALAMOS INVESTMENT TRUST (the “Trust”)
Supplement dated August 11, 2026 to the CALAMOS® FAMILY OF FUNDS
Prospectus and Statement of Additional Information, each dated February 27, 2026, as supplemented from time to time
This supplement updates certain information contained in the Prospectus and Statement of Additional Information noted above and should be attached to the Prospectus and Statement of Additional Information and retained for future reference.
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| CALAMOS GLOBAL EQUITY FUND | CALAMOS GLOBAL EQUITY FUND | |||||||
| Prospectus [Line Items] | |||||||
| Supplement to Prospectus [Text Block] | CALAMOS INVESTMENT TRUST (the “Trust”)
Supplement dated August 11, 2026 to the CALAMOS® FAMILY OF FUNDS
Prospectus and Statement of Additional Information, each dated February 27, 2026, as supplemented from time to time
This supplement updates certain information contained in the Prospectus and Statement of Additional Information noted above and should be attached to the Prospectus and Statement of Additional Information and retained for future reference.
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