Calamos S&P 500 Structured Alt Protection ETF - September (CPST)
NYSEARCA: CPST · Real-Time Price · USD
26.87
+0.03 (0.11%)
Oct 24, 2025, 4:00 PM EDT - Market closed
CPST Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 24, 2025 | 26.90 | 26.90 | 26.84 | 26.87 | 26.87 | 0.12% | 6,108 |
| Oct 23, 2025 | 26.85 | 26.86 | 26.84 | 26.84 | 26.84 | 0.13% | 953 |
| Oct 22, 2025 | 26.87 | 26.87 | 26.78 | 26.80 | 26.80 | -0.14% | 5,522 |
| Oct 21, 2025 | 26.86 | 26.86 | 26.84 | 26.84 | 26.84 | 0.02% | 2,623 |
| Oct 20, 2025 | 26.78 | 26.86 | 26.78 | 26.84 | 26.84 | 0.16% | 2,117 |
| Oct 17, 2025 | 26.76 | 26.79 | 26.76 | 26.79 | 26.79 | 0.06% | 800 |
| Oct 16, 2025 | 26.82 | 26.82 | 26.72 | 26.78 | 26.78 | - | 1,419 |
| Oct 15, 2025 | 26.81 | 26.81 | 26.72 | 26.77 | 26.77 | 0.10% | 1,935 |
| Oct 14, 2025 | 26.77 | 26.78 | 26.75 | 26.75 | 26.75 | -0.04% | 201 |
| Oct 13, 2025 | 26.78 | 26.79 | 26.74 | 26.76 | 26.76 | 0.20% | 1,533 |
| Oct 10, 2025 | 26.82 | 26.82 | 26.71 | 26.71 | 26.71 | -0.33% | 1,559 |
| Oct 9, 2025 | 26.76 | 26.81 | 26.76 | 26.80 | 26.80 | 0.05% | 400 |
| Oct 8, 2025 | 26.84 | 26.84 | 26.78 | 26.78 | 26.78 | 0.02% | 755 |
| Oct 7, 2025 | 26.77 | 26.81 | 26.77 | 26.78 | 26.78 | -0.08% | 1,108 |
| Oct 6, 2025 | 26.83 | 26.83 | 26.79 | 26.80 | 26.80 | 0.04% | 4,193 |
| Oct 3, 2025 | 26.83 | 26.83 | 26.75 | 26.79 | 26.79 | 0.02% | 5,504 |
| Oct 2, 2025 | 26.82 | 26.82 | 26.73 | 26.78 | 26.78 | 0.01% | 8,354 |
| Oct 1, 2025 | 26.79 | 26.80 | 26.74 | 26.78 | 26.78 | 0.23% | 2,569 |
| Sep 30, 2025 | 26.76 | 26.76 | 26.71 | 26.72 | 26.72 | -0.06% | 6,898 |
| Sep 29, 2025 | 26.75 | 26.75 | 26.73 | 26.73 | 26.73 | 0.04% | 106 |
| Sep 26, 2025 | 26.75 | 26.76 | 26.68 | 26.72 | 26.72 | 0.12% | 4,010 |
| Sep 25, 2025 | 26.72 | 26.72 | 26.64 | 26.69 | 26.69 | -0.09% | 7,915 |
| Sep 24, 2025 | 26.72 | 26.72 | 26.67 | 26.71 | 26.71 | - | 1,646 |
| Sep 23, 2025 | 26.76 | 26.77 | 26.68 | 26.71 | 26.71 | -0.22% | 21,522 |
| Sep 22, 2025 | 26.74 | 26.78 | 26.74 | 26.77 | 26.77 | 0.15% | 6,672 |
| Sep 19, 2025 | 26.74 | 26.76 | 26.73 | 26.73 | 26.73 | 0.01% | 1,216 |
| Sep 18, 2025 | 26.71 | 26.75 | 26.71 | 26.73 | 26.73 | 0.13% | 7,871 |
| Sep 17, 2025 | 26.72 | 26.75 | 26.69 | 26.69 | 26.69 | 0.03% | 1,944 |
| Sep 16, 2025 | 26.71 | 26.72 | 26.68 | 26.68 | 26.68 | 0.03% | 2,249 |
| Sep 15, 2025 | 26.72 | 26.72 | 26.65 | 26.68 | 26.68 | 0.02% | 6,283 |
| Sep 12, 2025 | 26.70 | 26.70 | 26.67 | 26.67 | 26.67 | 0.02% | 3,323 |
| Sep 11, 2025 | 26.68 | 26.72 | 26.61 | 26.67 | 26.67 | 0.08% | 11,976 |
| Sep 10, 2025 | 26.66 | 26.67 | 26.61 | 26.65 | 26.65 | 0.08% | 2,611 |
| Sep 9, 2025 | 26.60 | 26.64 | 26.60 | 26.63 | 26.63 | 0.02% | 20,517 |
| Sep 8, 2025 | 26.63 | 26.63 | 26.62 | 26.62 | 26.62 | 0.08% | 4,945 |
| Sep 5, 2025 | 26.67 | 26.67 | 26.56 | 26.60 | 26.60 | 0.02% | 11,908 |
| Sep 4, 2025 | 26.52 | 26.61 | 26.51 | 26.60 | 26.60 | 0.13% | 21,265 |
| Sep 3, 2025 | 26.55 | 26.56 | 26.50 | 26.56 | 26.56 | 0.08% | 19,304 |
| Sep 2, 2025 | 26.52 | 26.64 | 26.46 | 26.54 | 26.54 | -0.08% | 171,576 |
| Aug 29, 2025 | 26.50 | 26.57 | 26.50 | 26.56 | 26.56 | 0.17% | 19,750 |
| Aug 28, 2025 | 26.50 | 26.52 | 26.50 | 26.52 | 26.52 | 0.02% | 1,002 |
| Aug 27, 2025 | 26.51 | 26.51 | 26.51 | 26.51 | 26.51 | 0.02% | 763 |
| Aug 26, 2025 | 26.52 | 26.52 | 26.50 | 26.51 | 26.51 | - | 763 |
| Aug 25, 2025 | 26.46 | 26.51 | 26.46 | 26.51 | 26.51 | 0.03% | 11,561 |
| Aug 22, 2025 | 26.50 | 26.50 | 26.50 | 26.50 | 26.50 | 0.09% | 10 |
| Aug 21, 2025 | 26.48 | 26.48 | 26.48 | 26.48 | 26.48 | -0.02% | 148 |
| Aug 20, 2025 | 26.48 | 26.48 | 26.48 | 26.48 | 26.48 | 0.02% | 148 |
| Aug 19, 2025 | 26.48 | 26.48 | 26.48 | 26.48 | 26.48 | -0.02% | 152 |
| Aug 18, 2025 | 26.46 | 26.48 | 26.44 | 26.48 | 26.48 | 0.02% | 2,191 |
| Aug 15, 2025 | 26.44 | 26.47 | 26.44 | 26.47 | 26.47 | 0.07% | 2,028 |