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Calamos S&P 500 Structured Alt Protection ETF - October (CPSO)
NYSEARCA: CPSO · Real-Time Price · USD
26.56
+0.03 (0.11%)
At close: Aug 15, 2025, 4:00 PM
26.56
0.00 (0.00%)
After-hours: Aug 15, 2025, 8:00 PM EDT

CPSO Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Aug 15, 202526.5326.5626.5326.5626.560.11%127
Aug 14, 202526.5226.5326.5226.5326.53-0.11%321
Aug 13, 202526.5626.5626.5226.5626.560.04%4,308
Aug 12, 202526.5026.5526.5026.5526.550.29%2,065
Aug 11, 202526.4826.4826.4726.4726.47-0.04%848
Aug 8, 202526.4826.4826.4826.4826.480.09%1
Aug 7, 202526.4626.4626.4626.4626.46-0.01%896
Aug 6, 202526.4626.4626.4626.4626.460.16%896
Aug 5, 202526.4226.4226.4226.4226.42-0.06%1,720
Aug 4, 202526.4426.4426.4426.4426.440.30%1,973
Aug 1, 202526.3626.3626.3626.3626.36-0.25%1,993
Jul 31, 202526.4326.4426.4026.4226.42-0.07%5,323
Jul 30, 202526.4326.4826.4026.4426.44-0.02%4,322
Jul 29, 202526.4926.4926.4426.4426.44-0.03%130
Jul 28, 202526.4526.4526.4526.4526.450.02%-
Jul 25, 202526.4526.4526.4526.4526.450.10%1
Jul 24, 202526.4226.4226.4226.4226.420.05%1
Jul 23, 202526.3826.4326.3826.4126.410.11%471
Jul 22, 202526.3926.4026.3326.3826.380.06%3,908
Jul 21, 202526.3826.4126.3626.3626.36-6,328
Jul 18, 202526.3526.3826.3526.3626.360.08%9,531
Jul 17, 202526.3426.3726.3426.3426.340.11%5,597
Jul 16, 202526.3126.3126.3126.3126.310.05%176
Jul 15, 202526.3026.3026.3026.3026.30-0.05%235
Jul 14, 202526.2726.3126.2726.3126.310.02%1,022
Jul 11, 202526.3126.3126.3126.3126.310.02%139
Jul 10, 202526.3026.3026.3026.3026.300.02%29
Jul 9, 202526.3026.3026.3026.3026.300.23%314
Jul 8, 202526.2726.2726.2426.2426.24-314
Jul 7, 202526.2626.2626.2426.2426.24-0.21%516
Jul 3, 202526.2926.2926.2926.2926.290.19%465
Jul 2, 202526.2426.2426.2426.2426.240.08%1,121
Jul 1, 202526.2226.2226.2226.2226.22-0.04%-
Jun 30, 202526.2326.2326.2326.2326.230.10%-
Jun 27, 202526.1826.2026.1826.2026.200.12%268
Jun 26, 202526.1726.1726.1726.1726.170.18%17
Jun 25, 202526.1226.1226.1226.1226.12-1,000
Jun 24, 202526.0826.1326.0826.1326.130.27%749
Jun 23, 202526.0626.0626.0626.0626.060.28%-
Jun 20, 202525.9825.9825.9825.9825.98-0.03%80
Jun 18, 202525.9925.9925.9925.9925.990.02%80
Jun 17, 202525.9925.9925.9925.9925.99-0.17%100
Jun 16, 202526.0126.0326.0126.0326.030.29%100
Jun 13, 202525.9725.9725.9625.9625.96-0.23%104
Jun 12, 202525.9926.0425.9926.0226.020.07%3,259
Jun 11, 202526.0026.0026.0026.0026.00-0.03%162
Jun 10, 202525.9826.0125.9826.0126.010.19%138
Jun 9, 202525.9625.9625.9425.9625.96-811
Jun 6, 202525.9225.9525.9225.9525.950.15%1,975
Jun 5, 202525.9125.9325.8525.9225.92-0.04%7,507