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CPST

Calamos S&P 500 Structured Alt Protection ETF - September
CPST

17 hedge funds and large institutions have $15.1M invested in Calamos S&P 500 Structured Alt Protection ETF - September in 2025 Q3 according to their latest regulatory filings, with 5 funds opening new positions, 3 increasing their positions, 5 reducing their positions, and 2 closing their positions.

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New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding: →

more capital invested

Capital invested by funds: $ → $

less ownership

Funds ownership: →

40% less repeat investments, than reductions

Existing positions increased: 3 | Existing positions reduced: 5

Holders
17
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
+$410K
2
+$340K
3
+$323K
4
PCA
Pallas Capital Advisors
Massachusetts
+$252K
5
CWM
Calamos Wealth Management
Illinois
+$223K

Top Sellers

1
-$235K
2
-$126K
3
-$57.3K
4
Calamos Advisors
Calamos Advisors
Illinois
-$55.6K
5
CAL
Capital Analysts LLC
Pennsylvania
-$23.3K
Name Holding Trade Value Shares
Change 		Change in
Stake
1
$6.85M
2
$3.65M
3
$697K
4
$547K
5
$414K
6
$367K
7
$361K
8
$344K
9
$326K
10
$274K
11
$256K
12
$254K
13
$237K
14
$214K
15
$193K
16
$122K
17
$7.99K
18
–
19
–