Calamos S&P 500 Structured Alt Protection ETF - April
CPSP
9 hedge funds and large institutions have $13.1M invested in Calamos S&P 500 Structured Alt Protection ETF - April in 2026 Q1 according to their latest regulatory filings, with 0 funds opening new positions, 2 increasing their positions, 2 reducing their positions, and 3 closing their positions.
18% more capital invested
Capital invested by funds: $11.1M → $13.1M (+$1.96M)
11.23% more ownership
Funds ownership: 71.29% → 82.51% (+11%)
0% more repeat investments, than reductions
Existing positions increased: 2 | Existing positions reduced: 2
31% less funds holding
Funds holding: 13 → 9 (-4)
100% less first-time investments, than exits
New positions opened: 0 | Existing positions closed: 3
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Calamos Advisors
Naperville,
Illinois
|
+$2.52M |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$1.1K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OMC
Old Mission Capital
Chicago,
Illinois
|
-$361K |
| 2 |
T
TrustBank
Olney,
Illinois
|
-$275K |
| 3 |
KAS
Kestra Advisory Services
Austin,
Texas
|
-$62.6K |
| 4 |
CWM
Calamos Wealth Management
Naperville,
Illinois
|
-$18.8K |
| 5 |
NECFA
New England Capital Financial Advisors
Meriden,
Connecticut
|
-$498 |
CPSP Hedge Fund Activity: Q1 2026 in Review
9 of the 8,134 institutional investors tracked by Wall St. Rank reported a position in Calamos S&P 500 Structured Alt Protection ETF - April (CPSP) for Q1 2026, worth a combined $13.1M — up 18% from $11.1M a quarter earlier.
Sellers outnumbered buyers: 3 funds closed out of CPSP and 0 opened new positions — a net loss of 3 holders — while 2 trimmed existing stakes and 2 added.
The largest buyer was Calamos Advisors, adding an estimated $2.52M. The largest seller was Old Mission Capital, exiting entirely with an estimated $361K sold.
- 9 institutional investors held Calamos S&P 500 Structured Alt Protection ETF - April (CPSP) as of Q1 2026, down from 13 in Q4 2025.
- Funds reported $13.1M of Calamos S&P 500 Structured Alt Protection ETF - April stock for Q1 2026, up 18% quarter-over-quarter.
- 0 funds opened new Calamos S&P 500 Structured Alt Protection ETF - April positions in Q1 2026 and 3 closed out, a net change of -3 holders.
- The largest Calamos S&P 500 Structured Alt Protection ETF - April buyer in Q1 2026 was Calamos Advisors, an estimated $2.52M added.
- The largest Calamos S&P 500 Structured Alt Protection ETF - April seller in Q1 2026 was Old Mission Capital, an estimated $361K sold.
Based on aggregated 13F filings for Q1 2026.