CPSO

Calamos S&P 500 Structured Alt Protection ETF - October
CPSO

11 hedge funds and large institutions have $9.28M invested in Calamos S&P 500 Structured Alt Protection ETF - October in 2025 Q3 according to their latest regulatory filings, with 1 funds opening new positions, 0 increasing their positions, 6 reducing their positions, and 1 closing their positions.

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New
Increased
Maintained
Reduced
Closed

more ownership

Funds ownership: →

more funds holding

Funds holding: →

more first-time investments, than exits

New positions opened: | Existing positions closed:

less capital invested

Capital invested by funds: $ → $

100% less repeat investments, than reductions

Existing positions increased: 0 | Existing positions reduced: 6

Holders
11
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
–
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
–
Puts
–
Net Calls
Net Calls Change

Top Buyers

1
+$331K

Top Sellers

1
-$407K
2
-$242K
3
-$79.9K
4
Calamos Advisors
Calamos Advisors
Illinois
-$55.4K
5
HI
Harbour Investments
Wisconsin
-$26K
Name Holding Trade Value Shares
Change 		Change in
Stake
1
$6.83M
2
$761K
3
$418K
4
$335K
5
$299K
6
$288K
7
$201K
8
$53.6K
9
$42.3K
10
$36.7K
11
$13.5K
12
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