Calamos Wealth Management’s Calamos S&P 500 Structured Alt Protection ETF - September CPST Stock Holding History

Calamos Wealth Management’s Portfolio CPST Stock Details CPST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$2.72M	Sell	97,729 -4,609	-5%	-$127K	0.08%	132
2026 Q1	$2.76M	Sell	102,338 -23,181	-18%	-$628K	0.1%	123
2025 Q4	$3.39M	Sell	125,519 -10,973	-8%	-$295K	0.12%	103
2025 Q3	$3.65M	Buy	136,492 +8,435	+7%	+$223K	0.13%	94
2025 Q2	$3.34M	Sell	128,057 -23,137	-15%	-$589K	0.14%	93
2025 Q1	$3.81M	Hold	151,194	–	–	0.19%	82
2024 Q4	$3.83M	Sell	151,194 -1,613	-1%	-$40.7K	0.19%	76
2024 Q3	$3.83M	Buy	+152,807	New	+$3.81M	0.2%	82

Other funds holding CPST

Calamos Advisors Naperville, Illinois $30.1B AUM 30.03% 1-Year Est. Return

Camelot Portfolios Maumee, Ohio $143M AUM 14.82% 1-Year Est. Return

Commonwealth Equity Services Waltham, Massachusetts $79.5B AUM 27.1% 1-Year Est. Return

BFS

Burkett Financial Services Rock Hill, South Carolina $320M AUM 19.24% 1-Year Est. Return

CFD

Creative Financial Designs Kokomo, Indiana $2.1B AUM 23.1% 1-Year Est. Return

Calamos Wealth Management's CPST Position: Q2 2026 in Review

Calamos Wealth Management reduced its Calamos S&P 500 Structured Alt Protection ETF - September (CPST) stake by 4.5% in Q2 2026, selling an estimated $127K and leaving 97,729 shares worth $2.72M. The position accounts for 0.08% of the portfolio, ranked #132.

Calamos Wealth Management first reported a position in CPST in Q3 2024 and has held it in 8 quarters since. The position peaked at $3.83M in Q3 2024. 6 funds tracked by Wall St. Rank hold CPST as of Q2 2026.

Calamos Wealth Management held 97,729 shares of Calamos S&P 500 Structured Alt Protection ETF - September worth $2.72M as of Q2 2026.
Calamos Wealth Management sold 4,609 Calamos S&P 500 Structured Alt Protection ETF - September shares in Q2 2026, an estimated $127K.
Calamos S&P 500 Structured Alt Protection ETF - September made up 0.08% of Calamos Wealth Management's portfolio in Q2 2026, its #132 holding.
Calamos Wealth Management first reported a position in Calamos S&P 500 Structured Alt Protection ETF - September in Q3 2024 and has held it in 8 quarters since.
Calamos Wealth Management's Calamos S&P 500 Structured Alt Protection ETF - September position peaked at $3.83M in Q3 2024.
6 funds tracked by Wall St. Rank held Calamos S&P 500 Structured Alt Protection ETF - September as of Q2 2026.

Based on Calamos Wealth Management's 13F filing for Q2 2026, filed 31 Jul 2026.