Who owns Calamos S&P 500 Structured Alt Protection ETF – February?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of CPSF from SEC Form 13F filings across 22 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 22 institutions disclosed 671,049 shares of Calamos S&P 500 Structured Alt Protection ETF – February worth $17.6M — about 51.6% of shares outstanding; the largest disclosed holder is Calamos Advisors LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
22
13F holders
$17.6M
value, 2026 filers
51.6%
of shares outstanding (671,049 sh)
3
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of CPSF's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Calamos Advisors LLC | 365,522 | $9.6M | 0.0% | 28.1% | -14.2% |
| 2 | Calamos Wealth Management LLC | 49,735 | $1.3M | 0.0% | 3.8% | -34.3% |
| 3 | BRADLEY FOSTER & SARGENT INC/CT | 46,082 | $1.2M | 0.0% | 3.5% | 0.0% |
| 4 | Grantvest Financial Group LLC | 27,342 | $716,497 | 0.4% | 2.1% | -26.6% |
| 5 | COMMONWEALTH EQUITY SERVICES, LLC | 22,973 | $602,010 | 0.0% | 1.8% | 0.0% |
| 6 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNEW | 22,091 | $578,895 | 0.0% | 1.7% | new |
| 7 | Capital Analysts, LLC | 20,712 | $543,000 | 0.0% | 1.6% | 0.0% |
| 8 | PFG Advisors | 18,100 | $474,311 | 0.0% | 1.4% | 0.0% |
| 9 | JIM SAULNIER & ASSOCIATES, LLC | 17,469 | $457,775 | 0.2% | 1.3% | 0.0% |
| 10 | MML INVESTORS SERVICES, LLC | 15,795 | $413,908 | 0.0% | 1.2% | 0.0% |
| 11 | STOLZ & ASSOCIATES, PS | 11,761 | $308,197 | 0.2% | 0.9% | 0.0% |
| 12 | OLD MISSION CAPITAL LLCNEW | 11,543 | $302,484 | 0.0% | 0.9% | new |
| 13 | Camelot Portfolios, LLC | 11,312 | $296,431 | 0.2% | 0.9% | -2.4% |
| 14 | CENTAURUS FINANCIAL, INC. | 10,540 | $276,000 | 0.0% | 0.8% | -19.1% |
| 15 | RAYMOND JAMES FINANCIAL INC | 8,080 | $211,736 | 0.0% | 0.6% | 0.0% |
| 16 | OSAIC HOLDINGS, INC. | 6,775 | $177,563 | 0.0% | 0.5% | 0.0% |
| 17 | Aptus Capital Advisors, LLC | 2,072 | $54,297 | 0.0% | 0.2% | 0.0% |
| 18 | CREATIVE FINANCIAL DESIGNS INC /ADV | 834 | $21,855 | 0.0% | 0.1% | 0.0% |
| 19 | New England Capital Financial Advisors LLC | 793 | $20,781 | 0.0% | 0.1% | -26.8% |
| 20 | BURKETT FINANCIAL SERVICES, LLC | 775 | $20,308 | 0.0% | 0.1% | 0.0% |
| 21 | TUCKER ASSET MANAGEMENT LLCNEW | 578 | $15,147 | 0.0% | 0% | new |
| 22 | HARBOUR INVESTMENTS, INC. | 165 | $4,324 | 0.0% | 0% | 0.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation. Research, not investment advice.