Calamos S&P 500 Structured Alt Protection ETF - April
CPSP
11 hedge funds and large institutions have $10.7M invested in Calamos S&P 500 Structured Alt Protection ETF - April in 2025 Q3 according to their latest regulatory filings, with 3 funds opening new positions, 1 increasing their positions, 3 reducing their positions, and 1 closing their positions.
200% more first-time investments, than exits
New positions opened: 3 | Existing positions closed: 1
22% more funds holding
Funds holding: 9 → 11 (+2)
10% more capital invested
Capital invested by funds: $9.76M → $10.7M (+$951K)
5.13% more ownership
Funds ownership: 64.23% → 69.37% (+5.1%)
67% less repeat investments, than reductions
Existing positions increased: 1 | Existing positions reduced: 3
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OMC
Old Mission Capital
Chicago,
Illinois
|
+$916K |
| 2 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$323K |
| 3 |
CAL
Capital Analysts LLC
Fort Washington,
Pennsylvania
|
+$31.4K |
| 4 |
UBS Group
Zurich,
Switzerland
|
+$12.5K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
HI
Harbour Investments
Madison,
Wisconsin
|
-$243K |
| 2 |
CWM
Calamos Wealth Management
Naperville,
Illinois
|
-$166K |
| 3 |
Calamos Advisors
Naperville,
Illinois
|
-$55K |
| 4 |
Commonwealth Equity Services
Waltham,
Massachusetts
|
-$29.9K |
CPSP Hedge Fund Activity: Q3 2025 in Review
11 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Calamos S&P 500 Structured Alt Protection ETF - April (CPSP) for Q3 2025, worth a combined $10.7M — up 9.7% from $9.76M a quarter earlier.
Buyers outnumbered sellers: 3 funds opened new CPSP positions and 1 closed out — a net gain of 2 holders — while 1 added to existing stakes and 3 trimmed.
The largest buyer was Old Mission Capital, opening a new position worth an estimated $916K. The largest seller was Harbour Investments, exiting entirely with an estimated $243K sold.
- 11 institutional investors held Calamos S&P 500 Structured Alt Protection ETF - April (CPSP) as of Q3 2025, up from 9 in Q2 2025.
- Funds reported $10.7M of Calamos S&P 500 Structured Alt Protection ETF - April stock for Q3 2025, up 9.7% quarter-over-quarter.
- 3 funds opened new Calamos S&P 500 Structured Alt Protection ETF - April positions in Q3 2025 and 1 closed out, a net change of +2 holders.
- The largest Calamos S&P 500 Structured Alt Protection ETF - April buyer in Q3 2025 was Old Mission Capital, an estimated $916K added.
- The largest Calamos S&P 500 Structured Alt Protection ETF - April seller in Q3 2025 was Harbour Investments, an estimated $243K sold.
Based on aggregated 13F filings for Q3 2025.