Old Mission Capital’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
Q1
$770K Buy
28,562
+43
+0.2% +$1.17K 0.01% 545
2025
Q4
$771K Buy
28,519
+15,003
+111% +$403K 0.02% 517
2025
Q3
$361K Sell
13,516
-4,758
-26% -$126K 0.01% 826
2025
Q2
$477K Buy
+18,274
New +$465K 0.01% 738
2025
Q1
Sell
-24,384
Closed -$617K 1318
2024
Q4
$617K Buy
24,384
+15,832
+185% +$399K 0.01% 535
2024
Q3
$214K Buy
+8,552
New +$213K ﹤0.01% 1088

Other funds holding CPST

Old Mission Capital's CPST Position: Q1 2026 in Review

Old Mission Capital increased its Calamos S&P 500 Structured Alt Protection ETF - September (CPST) stake by 0.15% in Q1 2026, buying an estimated $1.17K and bringing the position to 28,562 shares worth $770K. The position accounts for 0.01% of the portfolio, ranked #545.

Old Mission Capital first reported a position in CPST in Q3 2024 and has held it in 6 quarters since. The position peaked at $771K in Q4 2025. 19 funds tracked by Wall St. Rank hold CPST as of Q1 2026.

  • Old Mission Capital held 28,562 shares of Calamos S&P 500 Structured Alt Protection ETF - September worth $770K as of Q1 2026.
  • Old Mission Capital bought 43 Calamos S&P 500 Structured Alt Protection ETF - September shares in Q1 2026, an estimated $1.17K.
  • Calamos S&P 500 Structured Alt Protection ETF - September made up 0.01% of Old Mission Capital's portfolio in Q1 2026, its #545 holding.
  • Old Mission Capital 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.
  • Old Mission Capital's Calamos S&P 500 Structured Alt Protection ETF - September position peaked at $771K in Q4 2025.
  • 19 funds tracked by Wall St. Rank held Calamos S&P 500 Structured Alt Protection ETF - September as of Q1 2026.

Based on Old Mission Capital's 13F filing for Q1 2026, filed 15 May 2026.