http://archive.fast-edgar.com/20261014/AFB2H62D8C22CZZK222N2ZZZO8OSR2Q2Z282
Filed on: October 14, 2026
http://archive.fast-edgar.com/20261014/A7Z2D22CU222G2Z2222V22ZZNO6CC2NIA282
Filed on: October 14, 2026
Rule 497(e)
File No. 333-191151
CALAMOS ETF TRUST
(the “Trust”)
Calamos Least-Of Autocallable Income ETF
(the “Fund”)
Supplement dated October 14, 2026
to the Fund’s Prospectus and Statement of Additional Information, each dated October 14, 2026
This supplement updates certain information contained in the Fund’s Prospectus and Statement of Additional Information and should be attached to each document and retained for future... (continue reading...)
As filed with the U.S. Securities and Exchange Commission on October 14, 2026
Securities Act File No. 333-191151 Investment Company Act File No. 811-22887
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM N-1A
REGISTRATION STATEMENT
UNDER THE SECURITIES ACT OF 1933 ☐ Pre-Effective Amendment No. ☐ Post-Effective ... (continue reading...)
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities... (continue reading...)
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