Calamos S&P 500 Alt SeptCPSTETF
13F holders, Q2 2026 (June 30)18holders −1
2new positions
3sold out
$27.81avg. 13F price*
At the end of Q2 2026, 18 institutions reported holding Calamos S&P 500 Alt Sept (CPST) in their 13F filings, down 1 from Q1 2026. 2 opened new positions and 3 sold out. The largest holders were Calamos Advisors LLC ($9.6M), Calamos Wealth Management LLC ($2.7M) and Osaic Holdings, Inc. ($2.6M).
- Company
- Calamos S&P 500 Alt Sept
- CUSIP
- 12811T886
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $670K |
| Exits | 3 | $1.3M |
All 13F filers, Q1 2026 → Q2 2026: 70,023 shares bought and 168,532 shares sold, net −98,509 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 18 holders
| Calamos Advisors LLC | 0.05% | Reduce -20.3% | 345,128 | $9.6M |
| Calamos Wealth Management LLC | 0.08% | Reduce -4.5% | 97,729 | $2.7M |
| Osaic Holdings, Inc. | 0.00% | Reduce -9.8% | 94,067 | $2.6M |
| Susquehanna International Group, LLP | 0.00% | Add +233.6% | 64,209 | $1.8M |
| Camelot Portfolios, LLC | 0.49% | Reduce -1.3% | 24,917 | $693K |
| Commonwealth Equity Services, LLC | 0.00% | No change | 20,483 | $570K |
| Fiduciary Financial Advisors | 0.06% | New | 20,051 | $558K |
| Blue Water Asset Management | 0.15% | Reduce -2.2% | 16,190 | $450K |
| Capital Analysts, LLC | 0.01% | No change | 13,745 | $383K |
| Spartan Wealth Advisory Services LLC | 0.02% | No change | 10,709 | $298K |
| Grantvest Financial Group LLC | 0.15% | Reduce -23.9% | 9,295 | $258K |
| Sterling Financial Planning, Inc. | 0.06% | No change | 8,018 | $223K |
| Hohimer Wealth Management, LLC | 0.02% | Reduce -11.4% | 7,878 | $219K |
| Innovative Asset Advisors Group, LLC | 0.05% | New | 4,035 | $112K |
| Burkett Financial Services, LLC | 0.03% | Reduce -52.5% | 3,420 | $95K |
| UBS Group AG | 0.00% | Add +2629.7% | 1,010 | $28K |
| Harbour Investments, Inc. | 0.00% | Reduce -91.9% | 939 | $26K |
| Creative Financial Designs Inc. | 0.00% | No change | 301 | $8K |
"% of holder's portfolio" is CPST's weight in each manager's 13F, not the share of Calamos S&P 500 Alt Sept the manager owns.