CPST

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

Overview Fund Activity

14 hedge funds and large institutions have $14.1M invested in Calamos S&P 500 Structured Alt Protection ETF - September in 2025 Q2 according to their latest regulatory filings, with 2 funds opening new positions, 1 increasing their positions, 6 reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
14
Holders Change
+1
Holders Change %
+7.69%
% of All Funds
0.19%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
2
Increased
1
Reduced
6
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Calamos Advisors
1
Calamos Advisors
Illinois
$6.75M
2
OMC
2
Old Mission Capital
Illinois
$477K
3
SFP
3
Sterling Financial Planning
New Jersey
$209K

Top Sellers

1
CWM
1
Calamos Wealth Management
Illinois
$3.34M
2
FA
2
Flagstar Advisors
New York
$0
3
Susquehanna International Group
3
Susquehanna International Group
Pennsylvania
$325K
4
Commonwealth Equity Services
4
Commonwealth Equity Services
Massachusetts
$510K
5
HWM
5
Hohimer Wealth Management
Washington
$232K
Name Holding Trade Value Shares
Change 		Shares
Change %
Calamos Advisors
1
Calamos Advisors
Illinois
$6.75M +$1.42M +54,201 +27%
CWM
2
Calamos Wealth Management
Illinois
$3.34M -$604K -23,137 -15%
Osaic Holdings
3
Osaic Holdings
Arizona
$893K – – –
CP
4
Camelot Portfolios
Ohio
$684K -$3.16K -121 -0.5%
Commonwealth Equity Services
5
Commonwealth Equity Services
Massachusetts
$510K -$26.5K -1,017 -5%
OMC
6
Old Mission Capital
Illinois
$477K +$477K +18,274 New
CAL
7
Capital Analysts LLC
Pennsylvania
$382K – – –
Susquehanna International Group
8
Susquehanna International Group
Pennsylvania
$325K -$125K -4,775 -28%
MOS
9
MGO One Seven
Ohio
$235K – – –
HWM
10
Hohimer Wealth Management
Washington
$232K -$26.4K -1,011 -10%
SFP
11
Sterling Financial Planning
New Jersey
$209K +$209K +8,018 New
BFS
12
Burkett Financial Services
South Carolina
$90.9K -$25.2K -964 -22%
CFD
13
Creative Financial Designs
Indiana
$7.81K – – –
UBS Group
14
UBS Group
Switzerland
$1.88K – – –
FA
15
Flagstar Advisors
New York
– -$504K -20,000 Closed