Calamos S&P 500 Structured Alt Protection ETF - October (CPSO)
NYSEARCA: CPSO · Real-Time Price · USD
28.32
+0.01 (0.03%)
Sep 25, 2026, 4:00 PM EDT - Market closed
CPSO Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 25, 2026 | 28.28 | 28.32 | 28.28 | 28.32 | 28.32 | 0.03% | 1,166 |
| Sep 24, 2026 | 28.31 | 28.31 | 28.31 | 28.31 | 28.31 | -0.02% | 168 |
| Sep 23, 2026 | 28.32 | 28.32 | 28.32 | 28.32 | 28.32 | 0.05% | 135 |
| Sep 22, 2026 | 28.30 | 28.30 | 28.30 | 28.30 | 28.30 | 0.01% | 53 |
| Sep 21, 2026 | 28.30 | 28.30 | 28.30 | 28.30 | 28.30 | 0.04% | 22 |
| Sep 18, 2026 | 28.30 | 28.30 | 28.29 | 28.29 | 28.29 | 0.09% | 476 |
| Sep 17, 2026 | 28.24 | 28.27 | 28.24 | 28.27 | 28.27 | -0.04% | 240 |
| Sep 16, 2026 | 28.28 | 28.28 | 28.28 | 28.28 | 28.28 | 0.12% | 583 |
| Sep 15, 2026 | 28.24 | 28.24 | 28.24 | 28.24 | 28.24 | -0.05% | 7 |
| Sep 14, 2026 | 28.28 | 28.28 | 28.25 | 28.25 | 28.25 | 0.01% | 598 |
| Sep 11, 2026 | 28.25 | 28.25 | 28.25 | 28.25 | 28.25 | 0.05% | 128 |
| Sep 10, 2026 | 28.24 | 28.27 | 28.24 | 28.24 | 28.23 | -0.02% | 1,609 |
| Sep 9, 2026 | 28.24 | 28.24 | 28.24 | 28.24 | 28.24 | -0.04% | 737 |
| Sep 8, 2026 | 28.25 | 28.25 | 28.25 | 28.25 | 28.25 | - | 114 |
| Sep 4, 2026 | 28.25 | 28.25 | 28.25 | 28.25 | 28.25 | 0.04% | 199 |
| Sep 3, 2026 | 28.19 | 28.26 | 28.19 | 28.24 | 28.24 | 0.07% | 1,234 |
| Sep 2, 2026 | 28.22 | 28.22 | 28.22 | 28.22 | 28.22 | 0.07% | 38 |
| Sep 1, 2026 | 28.21 | 28.21 | 28.20 | 28.20 | 28.20 | -0.04% | 250 |
| Aug 31, 2026 | 28.25 | 28.25 | 28.20 | 28.21 | 28.21 | - | 5,513 |
| Aug 28, 2026 | 28.21 | 28.21 | 28.21 | 28.21 | 28.21 | 0.02% | 183 |
| Aug 27, 2026 | 28.20 | 28.20 | 28.20 | 28.20 | 28.20 | 0.05% | 198 |
| Aug 26, 2026 | 28.19 | 28.19 | 28.19 | 28.19 | 28.19 | 0.09% | 99 |
| Aug 25, 2026 | 28.18 | 28.18 | 28.15 | 28.17 | 28.17 | 0.04% | 947 |
| Aug 24, 2026 | 28.15 | 28.16 | 28.15 | 28.16 | 28.16 | - | 4,011 |
| Aug 21, 2026 | 28.15 | 28.15 | 28.15 | 28.15 | 28.15 | 0.09% | 7 |
| Aug 20, 2026 | 28.13 | 28.13 | 28.13 | 28.13 | 28.13 | -0.06% | 9 |
| Aug 19, 2026 | 28.15 | 28.15 | 28.15 | 28.15 | 28.15 | -0.02% | 36 |
| Aug 18, 2026 | 28.12 | 28.19 | 28.12 | 28.15 | 28.15 | - | 1,712 |
| Aug 17, 2026 | 28.11 | 28.17 | 28.11 | 28.15 | 28.15 | 0.03% | 1,284 |
| Aug 14, 2026 | 28.14 | 28.14 | 28.14 | 28.14 | 28.14 | 0.04% | 7 |
| Aug 13, 2026 | 28.13 | 28.13 | 28.13 | 28.13 | 28.13 | -0.03% | 10 |
| Aug 12, 2026 | 28.17 | 28.17 | 28.10 | 28.14 | 28.14 | 0.12% | 1,523 |
| Aug 11, 2026 | 28.11 | 28.11 | 28.11 | 28.11 | 28.11 | -0.05% | 337 |
| Aug 10, 2026 | 28.13 | 28.13 | 28.12 | 28.12 | 28.12 | -0.02% | 107 |
| Aug 7, 2026 | 28.12 | 28.13 | 28.09 | 28.13 | 28.13 | 0.09% | 3,409 |
| Aug 6, 2026 | 28.10 | 28.10 | 28.10 | 28.10 | 28.10 | - | 7 |
| Aug 5, 2026 | 28.14 | 28.15 | 28.10 | 28.10 | 28.10 | 0.04% | 5,559 |
| Aug 4, 2026 | 28.13 | 28.13 | 28.09 | 28.09 | 28.09 | 0.11% | 4,318 |
| Aug 3, 2026 | 28.04 | 28.06 | 28.04 | 28.06 | 28.06 | 0.12% | 506 |
| Jul 31, 2026 | 27.98 | 28.03 | 27.98 | 28.03 | 28.03 | 0.17% | 2,701 |
| Jul 30, 2026 | 27.98 | 27.98 | 27.86 | 27.98 | 27.98 | 0.42% | 5,668 |
| Jul 29, 2026 | 27.94 | 27.96 | 27.86 | 27.86 | 27.86 | -0.36% | 4,088 |
| Jul 28, 2026 | 27.97 | 27.97 | 27.97 | 27.97 | 27.97 | 0.13% | 563 |
| Jul 27, 2026 | 27.93 | 27.93 | 27.93 | 27.93 | 27.93 | 0.05% | 63 |
| Jul 24, 2026 | 27.92 | 27.92 | 27.92 | 27.92 | 27.92 | 0.07% | 6 |
| Jul 23, 2026 | 27.90 | 27.90 | 27.90 | 27.90 | 27.90 | -0.23% | 96 |
| Jul 22, 2026 | 27.97 | 27.97 | 27.94 | 27.96 | 27.96 | 0.02% | 12,099 |
| Jul 21, 2026 | 27.95 | 27.95 | 27.95 | 27.95 | 27.95 | 0.12% | 130 |
| Jul 20, 2026 | 27.95 | 27.95 | 27.92 | 27.92 | 27.92 | - | 1,345 |
| Jul 17, 2026 | 27.92 | 27.92 | 27.92 | 27.92 | 27.92 | -0.09% | 76 |