http://archive.fast-edgar.com/20260817/A8ZZ822COZ22U2AZ2CJA2MZ2K84BZ22IZO82
Filed on: August 17, 2026
http://archive.fast-edgar.com/20260817/AJBZ662C8Z22PZZZ27ZU2ZZZDUUCZ2U2ZV8Q
Filed on: August 17, 2026
http://archive.fast-edgar.com/20260817/A4ZZ822COZ22T2AZ2CJ42MZ2BCMSZ22IZE82
Filed on: August 17, 2026
http://archive.fast-edgar.com/20260817/AWZ2L22CZZ22J2N2229Q2MZ2RC8LU72SA282
Filed on: August 17, 2026
Rule 497(e)
File No. 333-191151
CALAMOS ETF TRUST
(the “Trust”)
Calamos S&P 500® Structured Alt Protection ETF® – September
(the “Fund”)
Supplement dated August 17, 2026
to the Fund’s Prospectus dated November 28, 2025, as amended
This supplement updates certain information contained in the Fund’s prospectus and should be attached to the prospectus and retained for future reference.
Capitalized terms not defined herein... (continue reading...)
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