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CPSP

Calamos S&P 500 Structured Alt Protection ETF - April

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.

New
Increased
Maintained
Reduced
Closed

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: 139 (-4)

100% less first-time investments, than exits

New positions opened: 0 | Existing positions closed: 3

Holders
9
Holders Change
-4
Holders Change %
-30.77%
% of All Funds
0.11%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
2
Reduced
2
Closed
3
Calls
Puts
Net Calls
Net Calls Change

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.