Who owns Calamos S&P 500 Structured Alt Protection ETF – July?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of CPSJ from SEC Form 13F filings across 31 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, 31 institutions disclosed 976,239 shares of Calamos S&P 500 Structured Alt Protection ETF – July worth $27.0M — about 65.5% of shares outstanding; the largest disclosed holder is Calamos Advisors LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
31
13F holders
$27.0M
value, 2026 filers
65.5%
of shares outstanding (976,239 sh)
8
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 CPSJ's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Calamos Advisors LLC | 347,129 | $9.6M | 0.0% | 23.3% | -15.7% |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 93,360 | $2.6M | 0.0% | 6.3% | +341.6% |
| 3 | OSAIC HOLDINGS, INC. | 66,868 | $1.9M | 0.0% | 4.5% | +32.9% |
| 4 | Calamos Wealth Management LLC | 61,042 | $1.7M | 0.1% | 4.1% | -22.9% |
| 5 | Cetera Investment Advisers | 55,451 | $1.5M | 0.0% | 3.7% | 0.0% |
| 6 | COMMONWEALTH EQUITY SERVICES, LLC | 37,359 | $1.0M | 0.0% | 2.5% | -3.2% |
| 7 | Grantvest Financial Group LLC | 34,244 | $947,360 | 0.5% | 2.3% | -34.5% |
| 8 | Blue Water Asset Management | 29,178 | $807,209 | 0.3% | 2% | 0.0% |
| 9 | Astoria Portfolio Advisors LLC. | 27,039 | $748,034 | 0.1% | 1.8% | 0.0% |
| 10 | Capital Analysts, LLC | 25,772 | $713,000 | 0.0% | 1.7% | -6.0% |
| 11 | Farther Finance Advisors, LLC | 21,954 | $607,357 | 0.0% | 1.5% | 0.0% |
| 12 | HighTower Advisors, LLC | 19,484 | $539,025 | 0.0% | 1.3% | 0.0% |
| 13 | BANK OF AMERICA CORP /DE/NEW | 19,172 | $530,393 | 0.0% | 1.3% | new |
| 14 | OLD MISSION CAPITAL LLC | 17,573 | $486,157 | 0.0% | 1.2% | -23.5% |
| 15 | Advus Financial Partners, LLCNEW | 12,845 | $355,357 | 0.1% | 0.9% | new |
| 16 | Ellis Investment Partners, LLC | 11,556 | $319,721 | 0.0% | 0.8% | 0.0% |
| 17 | PFG Advisors | 10,925 | $302,240 | 0.0% | 0.7% | 0.0% |
| 18 | CAP Partners, LLC | 10,790 | $298,505 | 0.1% | 0.7% | -4.4% |
| 19 | TrustBankNEW | 10,505 | $290,621 | 0.1% | 0.7% | new |
| 20 | Sound Income Strategies, LLC | 9,465 | $261,849 | 0.0% | 0.6% | +30.3% |
| 21 | Sterling Financial Planning, Inc. | 9,447 | $261,351 | 0.1% | 0.6% | 0.0% |
| 22 | Innovative Asset Advisors Group, LLCNEW | 8,837 | $244,476 | 0.1% | 0.6% | new |
| 23 | Sigma Planning Corp | 8,351 | $231,030 | 0.0% | 0.6% | 0.0% |
| 24 | Vestmark Advisory Solutions, Inc.NEW | 8,340 | $230,726 | 0.0% | 0.6% | new |
| 25 | Able Wealth Management LLC | 8,340 | $230,726 | 0.1% | 0.6% | 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.