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Calamos S&P 500 Structured Alt Protection ETF - September (CPST)
NYSEARCA: CPST · Real-Time Price · USD
26.47
+0.02 (0.07%)
At close: Aug 15, 2025, 4:00 PM
26.47
0.00 (0.00%)
After-hours: Aug 15, 2025, 8:00 PM EDT

CPST Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Aug 15, 202526.4426.4726.4426.4726.470.07%2,028
Aug 14, 202526.4626.4626.4626.4626.46-0.02%148
Aug 13, 202526.4626.4626.4626.4626.460.04%-
Aug 12, 202526.4526.4526.4526.4526.450.13%482
Aug 11, 202526.4226.4226.4226.4226.42-0.02%639
Aug 8, 202526.4226.4226.4226.4226.420.20%2
Aug 7, 202526.3726.4226.3626.3726.37-0.03%5,290
Aug 6, 202526.3726.3826.3626.3826.380.14%2,571
Aug 5, 202526.3226.3426.3126.3426.34-0.03%6,636
Aug 4, 202526.3126.3526.3126.3526.350.37%2,624
Aug 1, 202526.2526.2626.2126.2526.25-0.30%2,305
Jul 31, 202526.3426.3526.3126.3326.33-0.04%4,945
Jul 30, 202526.3326.3426.3126.3426.34-0.02%3,728
Jul 29, 202526.3226.4026.3226.3526.35-0.04%1,154
Jul 28, 202526.3626.3626.3626.3626.360.06%189
Jul 25, 202526.3426.3426.3426.3426.340.08%2
Jul 24, 202526.3226.3226.3226.3226.320.02%2
Jul 23, 202526.2826.3226.2826.3226.320.15%316
Jul 22, 202526.2426.2826.2426.2826.280.04%171
Jul 21, 202526.2526.3126.2526.2726.270.06%4,258
Jul 18, 202526.2526.2526.2526.2526.250.03%325
Jul 17, 202526.2026.2626.2026.2426.240.13%7,929
Jul 16, 202526.1726.2126.1726.2126.210.07%282
Jul 15, 202526.1726.1926.1626.1926.19-0.03%689
Jul 14, 202526.1726.1926.1626.1926.190.03%907
Jul 11, 202526.1726.1926.1726.1926.19-0.02%1,444
Jul 10, 202526.2026.2026.1826.1926.190.02%8,166
Jul 9, 202526.1926.1926.1926.1926.190.15%15
Jul 8, 202526.1726.1726.1526.1526.150.06%142
Jul 7, 202526.1226.1426.0926.1326.13-0.15%5,353
Jul 3, 202526.1726.1726.1726.1726.170.17%467
Jul 2, 202526.1326.1326.1326.1326.130.09%1,127
Jul 1, 202526.1026.1026.1026.1026.10-0.04%-
Jun 30, 202526.1126.1126.1126.1126.110.11%-
Jun 27, 202526.0826.0826.0826.0826.080.12%-
Jun 26, 202526.0526.0526.0526.0526.050.19%804
Jun 25, 202526.0226.0226.0026.0026.00-0.02%804
Jun 24, 202526.0026.0126.0026.0126.010.31%684
Jun 23, 202525.9225.9225.9225.9225.920.33%94
Jun 20, 202525.8025.8625.8025.8425.840.02%1,693
Jun 18, 202525.8425.8425.8325.8325.83-0.01%113
Jun 17, 202525.8425.8425.8425.8425.84-0.25%202
Jun 16, 202525.8825.9025.8825.9025.900.35%202
Jun 13, 202525.8325.8325.8025.8125.81-0.29%389
Jun 12, 202525.8625.9125.8625.8825.880.10%6,604
Jun 11, 202525.8625.8625.8525.8625.86-0.04%200
Jun 10, 202525.8125.8725.8125.8725.870.19%3,587
Jun 9, 202525.8225.8425.8125.8225.82-0.03%3,695
Jun 6, 202525.8025.8325.7725.8325.830.26%3,151
Jun 5, 202525.7725.7725.7625.7625.76-0.09%2,277