As of the latest SEC filings, CALAMOS S&P 500 STRUCTURED ALT PROTECTION ETF - SEPTEMBER (CPST) is held by 1 institutional funds. The largest fund shareholder is Calamos Laddered S&P 500 Structured Alt Protection ETF (CPSL), holding an estimated $9,041,786.70 in market value, representing 8.32% of its portfolio.
Funds holding CALAMOS S&P 500 STRUCTURED ALT PROTECTION ETF - SEPTEMBER (CPST)
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- CPST
- CIK:
| Fund | Type | Manager | Weight | Market Value | Shares |
Report Date
|
Filing Date
|
|---|---|---|---|---|---|---|---|
|
CPSL
Calamos Laddered S&P 500 Structured Alt Protection ETF
|
ETF | Calamos | 8.32% | $9,041,786.70 | 328,613 | Apr 30, 2026 | Jun 26, 2026 |
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