Who owns Calamos S&P 500 Structured Alt Protection ETF – May?
Institutional ownership of CPSM from SEC Form 13F filings across 20 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.
20
13F holders
$9.3M
value, 2026 filers
21.8%
of shares outstanding (418,053 sh)
5
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 CPSM's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Cambridge Investment Research Advisors, Inc. | 101,662 | $2,974 | 0.0% | 5.3% | +116.7% |
| 2 | Advisory Services Network, LLC | 51,113 | $1.5M | 0.0% | 2.7% | -1.0% |
| 3 | Grantvest Financial Group LLCNEW | 41,820 | $1.2M | 0.7% | 2.2% | new |
| 4 | Sugar Maple Asset Management, LLC | 39,000 | $1.1M | 0.7% | 2% | 0.0% |
| 5 | COMMONWEALTH EQUITY SERVICES, LLC | 38,800 | $1.1M | 0.0% | 2% | 0.0% |
| 6 | Cetera Investment Advisers | 33,431 | $978,124 | 0.0% | 1.7% | -3.2% |
| 7 | LPL Financial LLC | 20,506 | $599,964 | 0.0% | 1.1% | +29.7% |
| 8 | OSAIC HOLDINGS, INC. | 16,258 | $475,690 | 0.0% | 0.8% | +80.5% |
| 9 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 16,257 | $475,647 | 0.0% | 0.8% | -12.2% |
| 10 | JPMORGAN CHASE & CO | 12,664 | $369,536 | 0.0% | 0.7% | -49.9% |
| 11 | HARBOUR INVESTMENTS, INC. | 11,358 | $332,312 | 0.0% | 0.6% | -31.8% |
| 12 | NBZ Investment Advisors LLC | 10,946 | $320,258 | 0.1% | 0.6% | 0.0% |
| 13 | Mutual Advisors, LLC | 10,087 | $295,125 | 0.0% | 0.5% | 0.0% |
| 14 | Concurrent Investment Advisors, LLCNEW | 7,566 | $221,351 | 0.0% | 0.4% | new |
| 15 | FIDUCIARY FINANCIAL ADVISORSNEW | 2,575 | $75,338 | 0.0% | 0.1% | new |
| 16 | ARMSTRONG ADVISORY GROUP, INCNEW | 1,714 | $50,149 | 0.0% | 0.1% | new |
| 17 | New England Capital Financial Advisors LLC | 1,306 | $38,211 | 0.0% | 0.1% | +621.5% |
| 18 | CREATIVE FINANCIAL DESIGNS INC /ADVNEW | 490 | $14,336 | 0.0% | 0% | new |
| 19 | Pinnacle Wealth Planning Services, Inc. | 400 | $11,703 | 0.0% | 0% | 0.0% |
| 20 | IFP Advisors, Inc | 100 | $2,926 | 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 · options positioning · supply chain. Research, not investment advice.