Calamos S&P 500 Structured Alt Protection ETF - October
CPSO
11 hedge funds and large institutions have $10.3M invested in Calamos S&P 500 Structured Alt Protection ETF - October in 2025 Q1 according to their latest regulatory filings, with 2 funds opening new positions, 3 increasing their positions, 2 reducing their positions, and 4 closing their positions.
50% more repeat investments, than reductions
Existing positions increased: 3 | Existing positions reduced: 2
15% less funds holding
Funds holding: 13 → 11 (-2)
34.67% less ownership
Funds ownership: 90.33% → 55.65% (-35%)
50% less first-time investments, than exits
New positions opened: 2 | Existing positions closed: 4
59% less capital invested
Capital invested by funds: $25.3M → $10.3M (-$15M)
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$430K |
| 2 |
CAL
Capital Analysts LLC
Fort Washington,
Pennsylvania
|
+$45.5K |
| 3 |
SDH
Sloy Dahl & Holst
Vancouver,
Washington
|
+$34.3K |
| 4 |
UBS Group
Zurich,
Switzerland
|
+$31.5K |
| 5 |
HI
Harbour Investments
Madison,
Wisconsin
|
+$25.1K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
VWM
VanWeelden Wealth Management
West Chester Township,
Ohio
|
-$5.73M |
| 2 |
Envestnet Asset Management
Chicago,
Illinois
|
-$5.64M |
| 3 |
Wealth Enhancement Advisory Services
Plymouth,
Minnesota
|
-$2.6M |
| 4 |
Calamos Advisors
Naperville,
Illinois
|
-$1.41M |
| 5 |
Commonwealth Equity Services
Waltham,
Massachusetts
|
-$106K |
CPSO Hedge Fund Activity: Q1 2025 in Review
11 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in Calamos S&P 500 Structured Alt Protection ETF - October (CPSO) for Q1 2025, worth a combined $10.3M — down 59% from $25.3M a quarter earlier.
Sellers outnumbered buyers: 4 funds closed out of CPSO and 2 opened new positions — a net loss of 2 holders — while 2 trimmed existing stakes and 3 added.
The largest buyer was Susquehanna International Group, opening a new position worth an estimated $430K. The largest seller was VanWeelden Wealth Management, exiting entirely with an estimated $5.73M sold.
- 11 institutional investors held Calamos S&P 500 Structured Alt Protection ETF - October (CPSO) as of Q1 2025, down from 13 in Q4 2024.
- Funds reported $10.3M of Calamos S&P 500 Structured Alt Protection ETF - October stock for Q1 2025, down 59% quarter-over-quarter.
- 2 funds opened new Calamos S&P 500 Structured Alt Protection ETF - October positions in Q1 2025 and 4 closed out, a net change of -2 holders.
- The largest Calamos S&P 500 Structured Alt Protection ETF - October buyer in Q1 2025 was Susquehanna International Group, an estimated $430K added.
- The largest Calamos S&P 500 Structured Alt Protection ETF - October seller in Q1 2025 was VanWeelden Wealth Management, an estimated $5.73M sold.
Based on aggregated 13F filings for Q1 2025.