Who owns Calamos S&P 500 Structured Alt Protection ETF – June?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of CPSU from SEC Form 13F filings across 14 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, 14 institutions disclosed 494,216 shares of Calamos S&P 500 Structured Alt Protection ETF – June worth $13.7M — about 104.4% of shares outstanding; the largest disclosed holder is Calamos Advisors LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
14
13F holders
$13.7M
value, 2026 filers
104.4%
of shares outstanding (494,216 sh)
7
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 CPSU's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Calamos Advisors LLC | 346,422 | $9.6M | 0.0% | 73.2% | +4.7% |
| 2 | Jessup Wealth Management, IncNEW | 54,677 | $1.5M | 0.5% | 11.5% | new |
| 3 | Calamos Wealth Management LLCNEW | 16,360 | $452,190 | 0.0% | 3.5% | new |
| 4 | OLD MISSION CAPITAL LLC | 15,481 | $427,817 | 0.0% | 3.3% | -11.6% |
| 5 | PFG Advisors | 14,587 | $403,112 | 0.0% | 3.1% | -0.8% |
| 6 | CENTAURUS FINANCIAL, INC. | 12,946 | $358,000 | 0.0% | 2.7% | 0.0% |
| 7 | Advus Financial Partners, LLCNEW | 9,287 | $256,646 | 0.1% | 2% | new |
| 8 | ARMSTRONG ADVISORY GROUP, INCNEW | 8,115 | $224,259 | 0.0% | 1.7% | new |
| 9 | Fairscale Capital, LLCNEW | 7,230 | $199,801 | 0.1% | 1.5% | new |
| 10 | Ashton Thomas Private Wealth, LLC | 5,537 | $153,015 | 0.0% | 1.2% | 0.0% |
| 11 | New England Capital Financial Advisors LLC | 1,665 | $46,013 | 0.0% | 0.4% | +453.2% |
| 12 | BURKETT FINANCIAL SERVICES, LLCNEW | 905 | $25,009 | 0.0% | 0.2% | new |
| 13 | CREATIVE FINANCIAL DESIGNS INC /ADV | 604 | $16,692 | 0.0% | 0.1% | -53.3% |
| 14 | OSAIC HOLDINGS, INC.NEW | 400 | $11,054 | 0.0% | 0.1% | new |
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 · options positioning · supply chain. Research, not investment advice.