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Calamos S&P 500 Structured Alt Protection ETF - September (CPST)
NYSEARCA: CPST · Real-Time Price · USD
27.04
-0.04 (-0.13%)
Dec 29, 2025, 11:30 AM EST - Market open

CPST Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Dec 29, 202527.0827.0827.0727.04--0.13%131
Dec 26, 202527.0527.0827.0427.0827.080.04%7,718
Dec 24, 202527.0727.0727.0727.0727.070.15%-
Dec 23, 202527.0327.0327.0027.0327.03-0.04%846
Dec 22, 202527.0427.0427.0427.0427.040.04%220
Dec 19, 202527.0327.0327.0327.0327.030.26%-
Dec 18, 202526.9926.9926.9626.9626.960.06%1,311
Dec 17, 202526.9526.9926.9426.9426.94-0.09%1,227
Dec 16, 202526.9726.9726.9626.9726.97-0.06%650
Dec 15, 202527.0027.0026.9826.9826.98-2,418
Dec 12, 202526.9926.9926.9826.9826.98-0.02%465
Dec 11, 202527.0127.0126.9526.9926.990.02%1,701
Dec 10, 202526.9927.0026.9726.9826.980.11%1,325
Dec 9, 202526.9526.9526.9526.9526.950.11%179
Dec 8, 202526.9226.9626.9126.9226.92-0.13%5,442
Dec 5, 202526.9726.9726.9326.9626.960.19%1,300
Dec 4, 202526.9126.9126.9126.9126.91-0.13%1,108
Dec 3, 202526.9126.9426.9026.9426.940.21%4,744
Dec 2, 202526.9026.9026.8926.8926.89-406
Dec 1, 202526.8826.8926.8626.8926.89-4,643
Nov 28, 202526.8926.8926.8926.8926.890.09%-
Nov 26, 202526.8626.8626.8426.8626.860.09%536
Nov 25, 202526.8726.8726.8226.8426.840.09%2,599
Nov 24, 202526.7826.8226.7826.8126.810.22%216
Nov 21, 202526.7526.7526.7526.7526.750.27%-
Nov 20, 202526.7126.7126.6826.6826.68-0.24%726
Nov 19, 202526.7926.7926.7026.7426.74-0.06%13,297
Nov 18, 202526.7726.7726.7226.7626.76-0.07%1,457
Nov 17, 202526.7726.8026.7726.7826.78-0.05%1,524
Nov 14, 202526.8026.8626.7926.7926.79-0.04%3,176
Nov 13, 202526.8526.8526.8026.8026.80-0.23%2,898
Nov 12, 202526.8626.8726.8626.8726.87-0.05%574
Nov 11, 202526.8726.9026.8326.8826.880.05%4,986
Nov 10, 202526.8326.8726.8326.8726.870.35%1,471
Nov 7, 202526.7626.7726.7226.7726.77-0.13%2,538
Nov 6, 202526.8526.8526.8026.8126.81-0.16%1,699
Nov 5, 202526.8326.8626.8326.8526.850.03%259
Nov 4, 202526.8426.8426.8426.8426.840.03%43
Nov 3, 202526.8526.8526.8426.8426.84-0.09%2,085
Oct 31, 202526.8926.8926.8626.8626.86-0.02%1,791
Oct 30, 202526.8726.8726.8726.8726.87-0.07%125
Oct 29, 202526.8926.9026.8926.8926.880.02%807
Oct 28, 202526.8926.9126.8826.8826.88-0.15%3,683
Oct 27, 202526.9226.9326.8626.9226.920.19%4,412
Oct 24, 202526.9026.9026.8426.8726.870.12%6,108
Oct 23, 202526.8526.8626.8426.8426.840.13%953
Oct 22, 202526.8726.8726.7826.8026.80-0.14%5,522
Oct 21, 202526.8626.8626.8426.8426.840.02%2,623
Oct 20, 202526.7826.8626.7826.8426.840.16%2,117
Oct 17, 202526.7626.7926.7626.7926.790.06%800