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Calamos S&P 500 Structured Alt Protection ETF - September

Calamos ETF Trust · Series ID: S000084799
Status
EFFECTIVE
Ticker
CPST
Effective Date
2025-11-28
Latest Form
485BPOS
Latest Filing Date
2025-11-21
Status Reason
485BPOS filed (fund trading)
Prospectus
View on SEC

Name History

4
Name First Seen Last Seen Source Form Current
Calamos S&P 500 Structured Alt Protection ETF - September 2025-08-15 497 Yes
Calamos S&P 500 Structured Alt Protection ETF - February 2024-05-01 2024-05-01 497
Calamos S&P 500 Structured Alt Protection ETF – February 2024-04-22 2024-04-22 485BPOS
Calamos Capital Protected [ ] ETF-February 2024-02-14 2024-02-14 485APOS

Filing History

17
All 485APOS 485BPOS 485BXT 497
Filing Date Form Type Class Name Ticker Effective Date Confidence Actions
2026-01-22 497K Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2026-01-22 HEADER View Analyze
2026-01-22 497 Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2026-01-22 HEADER View Analyze
2025-12-02 497J Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2025-12-02 HEADER View Analyze
2025-11-26 497K Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2025-11-26 HEADER View Analyze
2025-11-21 485BPOS Post-Effective Calamos S&P 500 Structured Alt Protection ETF - September CPST 2025-11-28 HEADER View Analyze
2025-08-29 497K Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2025-08-29 HEADER View Analyze
2025-08-29 497 Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2025-08-29 HEADER View Analyze
2025-08-29 497 Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2025-08-29 HEADER View Analyze
2025-08-29 497 Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2025-08-29 HEADER View Analyze
2025-08-15 497 Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2025-08-15 HEADER View Analyze
2024-08-30 497K Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2024-08-30 HEADER View Analyze
2024-08-30 497 Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2024-08-30 HEADER View Analyze
2024-08-30 497 Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPST 2024-08-30 HEADER View Analyze
2024-06-17 497 Supplement Calamos S&P 500 Structured Alt Protection ETF - September CPSF 2024-06-17 HEADER View Analyze
2024-05-01 497 Supplement Calamos S&P 500 Structured Alt Protection ETF - February CPSF 2024-05-01 HEADER View Analyze
2024-04-22 485BPOS Post-Effective Calamos S&P 500 Structured Alt Protection ETF – February CPSF 2024-04-29 HEADER View Analyze
2024-02-14 485APOS Initial Filing Calamos Capital Protected [ ] ETF-February View Analyze
REX Financial · ETP Filing Tracker v2.0 · Data from SEC EDGAR ·