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Calamos S&P 500 Structured Alt Protection ETF - October (CPSO)
NYSEARCA: CPSO · Real-Time Price · USD
27.15
-0.03 (-0.10%)
Mar 6, 2026, 4:00 PM EST - Market closed

CPSO Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Mar 6, 202627.1327.1527.1327.1527.15-0.08%1,132
Mar 5, 202627.2427.2427.1327.1827.18-0.19%1,441
Mar 4, 202627.2627.2627.2327.2327.230.16%260
Mar 3, 202627.1727.2227.1727.1827.18-0.17%820
Mar 2, 202627.1727.2527.1727.2327.230.03%2,014
Feb 27, 202627.2327.2427.2227.2227.22-0.06%2,162
Feb 26, 202627.1927.2427.1927.2427.24-0.08%1,305
Feb 25, 202627.2327.2627.2327.2627.260.15%1,693
Feb 24, 202627.2227.2227.1927.2227.220.24%1,252
Feb 23, 202627.1727.1727.1627.1627.16-0.28%526
Feb 20, 202627.2327.2327.2327.2327.230.15%220
Feb 19, 202627.1927.1927.1927.1927.19-0.06%150
Feb 18, 202627.1827.2427.1727.2127.210.13%5,510
Feb 17, 202627.2127.2227.1227.1727.170.02%4,746
Feb 13, 202627.1727.1727.1727.1727.170.03%453
Feb 12, 202627.1627.1627.1627.1627.16-0.26%473
Feb 11, 202627.2527.2727.2327.2327.23-0.01%4,959
Feb 10, 202627.2327.2327.2327.2327.23-0.03%969
Feb 9, 202627.2727.2827.2427.2427.240.07%2,641
Feb 6, 202627.1927.2227.1927.2227.220.39%1,597
Feb 5, 202627.1027.1527.1027.1227.12-0.14%2,781
Feb 4, 202627.1427.2027.1227.1527.15-0.11%2,864
Feb 3, 202627.1727.1927.1427.1927.19-0.06%832
Feb 2, 202627.1927.2527.1927.2027.200.02%681
Jan 30, 202627.2027.2027.2027.2027.20-0.03%50
Jan 29, 202627.1227.2127.1227.2027.20-0.11%6,110
Jan 28, 202627.2527.2527.2127.2327.230.05%1,538
Jan 27, 202627.1727.2227.1727.2227.220.17%3,864
Jan 26, 202627.1527.1827.1527.1827.18-3,161
Jan 23, 202627.1627.2127.1627.1827.180.04%1,145
Jan 22, 202627.1327.1727.1227.1727.170.09%11,359
Jan 21, 202627.1427.1427.1427.1427.140.18%8
Jan 20, 202627.1627.1627.0927.0927.09-0.26%300
Jan 16, 202627.1527.1827.1527.1627.160.02%679
Jan 15, 202627.1527.1627.1527.1627.160.13%3,555
Jan 14, 202627.1427.2027.1227.1227.12-0.17%28,804
Jan 13, 202627.1727.1727.1727.1727.160.02%1,189
Jan 12, 202627.1527.1627.1527.1627.160.04%991
Jan 9, 202627.1527.1527.1527.1527.150.09%-
Jan 8, 202627.1027.1327.1027.1327.130.02%1,482
Jan 7, 202627.1227.1227.1227.1227.12-0.04%354
Jan 6, 202627.1327.1327.1127.1327.130.11%2,519
Jan 5, 202627.1027.1027.1027.1027.100.11%86
Jan 2, 202627.0627.0827.0627.0727.070.02%562
Dec 31, 202527.0627.0627.0627.0627.06-0.10%36
Dec 30, 202527.0927.0927.0927.0927.09-0.01%138
Dec 29, 202527.1027.1027.0927.0927.09-0.05%289
Dec 26, 202527.1127.1127.1127.1127.110.06%37
Dec 24, 202527.0927.0927.0927.0927.090.07%10
Dec 23, 202527.0527.0727.0527.0727.070.07%400
Dec 22, 202527.0527.0527.0527.0527.050.11%6
Dec 19, 202527.0227.0227.0227.0227.020.15%91
Dec 18, 202526.9826.9826.9826.9826.98-44
Dec 17, 202526.9826.9826.9826.9826.98-0.04%4,954
Dec 16, 202527.0027.0026.9926.9926.99-0.07%3,417
Dec 15, 202527.0127.0126.9827.0127.010.09%2,784
Dec 12, 202527.0027.0026.9926.9926.99-0.20%104
Dec 11, 202527.0427.0427.0427.0427.040.06%2
Dec 10, 202527.0227.0327.0227.0327.020.04%1,622
Dec 9, 202527.0327.0327.0027.0227.020.15%2,459
Dec 8, 202527.0127.0226.9826.9826.98-0.09%1,149
Dec 5, 202527.0127.0526.9827.0027.000.08%2,102
Dec 4, 202526.9827.0026.9526.9826.98-0.04%2,732
Dec 3, 202526.9926.9926.9926.9926.990.15%-
Dec 2, 202526.9826.9826.9526.9526.95-0.02%685
Dec 1, 202526.9926.9926.9426.9626.960.02%3,481
Nov 28, 202526.9626.9726.9526.9526.950.09%222
Nov 26, 202526.9326.9326.9326.9326.930.09%114
Nov 25, 202526.8926.9026.8926.9026.900.13%189
Nov 24, 202526.8426.8726.8426.8726.870.26%1,117
Nov 21, 202526.8226.8426.8026.8026.790.24%1,130
Nov 20, 202526.8626.9026.7326.7326.73-0.24%7,133
Nov 19, 202526.8126.8126.8026.8026.80-0.09%756
Nov 18, 202526.8226.8326.7926.8226.820.01%40,709
Nov 17, 202526.8326.8826.8226.8226.82-0.05%3,123
Nov 14, 202526.8726.8726.8326.8326.830.02%1,656
Nov 13, 202526.8326.8626.8226.8326.82-0.33%2,654
Nov 12, 202526.9326.9326.9226.9226.92-0.04%4,519
Nov 11, 202526.9326.9626.8926.9326.920.09%8,179
Nov 10, 202526.9026.9026.9026.9026.900.19%92
Nov 7, 202526.8426.8526.8226.8526.850.01%4,795
Nov 6, 202526.8426.8826.8426.8526.85-0.26%4,834
Nov 5, 202526.9226.9326.9026.9226.920.17%4,373
Nov 4, 202526.8526.8826.8526.8726.87-0.16%729
Nov 3, 202526.9026.9626.8826.9126.91-0.01%5,922
Oct 31, 202526.8826.9526.8826.9226.920.07%2,251
Oct 30, 202526.8826.9026.8826.9026.90-0.11%168
Oct 29, 202526.9626.9826.9026.9326.92-0.13%1,315
Oct 28, 202526.9726.9926.9626.9626.96-0.04%6,384
Oct 27, 202526.9626.9926.9626.9726.970.22%7,131
Oct 24, 202526.9326.9526.8826.9126.91-13,835
Oct 23, 202526.9026.9326.8226.9126.910.20%25,122
Oct 22, 202526.9126.9126.8226.8626.86-0.10%31,515
Oct 21, 202526.9126.9126.8426.8826.880.03%12,351
Oct 20, 202526.9526.9526.8726.8726.870.18%3,519
Oct 17, 202526.8226.8726.8226.8326.830.07%21,839
Oct 16, 202526.8526.8526.7526.8126.81-0.06%11,461
Oct 15, 202526.9026.9026.7926.8226.820.03%14,558
Oct 14, 202526.7626.8526.7626.8226.81-0.04%70,734
Oct 13, 202526.7926.8326.7926.8326.830.13%3,330