Commonwealth Equity Services’s Calamos S&P 500 Structured Alt Protection ETF - September CPST Stock Holding History

Commonwealth Equity Services’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 Q3	$1.71M	Buy	60,949 +40,466	+198%	+$1.13M	﹤0.01%	2191
2026 Q2	$570K	Hold	20,483	–	–	﹤0.01%	3207
2026 Q1	$553K	Hold	20,483	–	–	﹤0.01%	3129
2025 Q4	$554K	Hold	20,483	–	–	﹤0.01%	3102
2025 Q3	$547K	Buy	20,483 +940	+5%	+$24.9K	﹤0.01%	3104
2025 Q2	$510K	Sell	19,543 -1,017	-5%	-$25.9K	﹤0.01%	3124
2025 Q1	$518K	Hold	20,560	–	–	﹤0.01%	2991
2024 Q4	$521K	Hold	20,560	–	–	﹤0.01%	2917
2024 Q3	$515K	Buy	+20,560	New	+$512K	﹤0.01%	2871

Other funds holding CPST

Calamos Advisors Naperville, Illinois $33.5B AUM 25.57% 1-Year Est. Return

Calamos Wealth Management Naperville, Illinois $3.51B AUM 25.96% 1-Year Est. Return

Verdence Capital Advisors Hunt Valley, Maryland $2.35B AUM 27.25% 1-Year Est. Return

Grantvest Financial Group Matawan, New Jersey $174M AUM 10.42% 1-Year Est. Return

Sterling Financial Planning Sparta, New Jersey $365M AUM 13.15% 1-Year Est. Return

Next Level Private Harrison, New York $520M AUM 19.06% 1-Year Est. Return

Burkett Financial Services Rock Hill, South Carolina $331M AUM 14.93% 1-Year Est. Return

New England Capital Financial Advisors Meriden, Connecticut $430M AUM 7.57% 1-Year Est. Return

Commonwealth Equity Services's CPST Position: Q3 2026 in Review

Commonwealth Equity Services increased its Calamos S&P 500 Structured Alt Protection ETF - September (CPST) stake by 198% in Q3 2026, buying an estimated $1.13M and bringing the position to 60,949 shares worth $1.71M. The position accounts for ﹤0.01% of the portfolio, ranked #2191.

Commonwealth Equity Services first reported a position in CPST in Q3 2024 and has held it in 9 quarters since. 9 funds tracked by Wall St. Rank hold CPST as of Q3 2026.

Commonwealth Equity Services held 60,949 shares of Calamos S&P 500 Structured Alt Protection ETF - September worth $1.71M as of Q3 2026.
Commonwealth Equity Services bought 40,466 Calamos S&P 500 Structured Alt Protection ETF - September shares in Q3 2026, an estimated $1.13M.
Calamos S&P 500 Structured Alt Protection ETF - September made up ﹤0.01% of Commonwealth Equity Services's portfolio in Q3 2026, its #2191 holding.
Commonwealth Equity Services first reported a position in Calamos S&P 500 Structured Alt Protection ETF - September in Q3 2024 and has held it in 9 quarters since.
9 funds tracked by Wall St. Rank held Calamos S&P 500 Structured Alt Protection ETF - September as of Q3 2026.

Based on Commonwealth Equity Services's 13F filing for Q3 2026, filed 2 Nov 2026.