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

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$1.79M Buy
64,209
+44,964
+234% +$1.24M ﹤0.01% 6751
2026
Q1
$519K Buy
+19,245
New +$522K ﹤0.01% 9569
2025
Q4
Sell
-10,265
Closed -$274K 13913
2025
Q3
$274K Sell
10,265
-2,166
-17% -$57.3K ﹤0.01% 10320
2025
Q2
$325K Sell
12,431
-4,775
-28% -$122K ﹤0.01% 10161
2025
Q1
$433K Buy
+17,206
New +$437K ﹤0.01% 9219
2024
Q4
Sell
-11,160
Closed -$280K 13451
2024
Q3
$280K Buy
+11,160
New +$278K ﹤0.01% 9758

Other funds holding CPST

Jeff Yass's CPST Position: Q2 2026 in Review

Jeff Yass increased its Calamos S&P 500 Structured Alt Protection ETF - September (CPST) stake by 234% in Q2 2026, buying an estimated $1.24M and bringing the position to 64,209 shares worth $1.79M. The position accounts for ﹤0.01% of the portfolio, ranked #6751.

Jeff Yass first reported a position in CPST in Q3 2024 and has held it in 6 quarters since. 18 funds tracked by Wall St. Rank hold CPST as of Q2 2026.

  • Jeff Yass held 64,209 shares of Calamos S&P 500 Structured Alt Protection ETF - September worth $1.79M as of Q2 2026.
  • Jeff Yass bought 44,964 Calamos S&P 500 Structured Alt Protection ETF - September shares in Q2 2026, an estimated $1.24M.
  • Calamos S&P 500 Structured Alt Protection ETF - September made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #6751 holding.
  • Jeff Yass first reported a position in Calamos S&P 500 Structured Alt Protection ETF - September in Q3 2024 and has held it in 6 quarters since.
  • 18 funds tracked by Wall St. Rank held Calamos S&P 500 Structured Alt Protection ETF - September as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.