Calamos S&P 500 Structured Alt Protection ETF - October (CPSO)
NYSEARCA: CPSO · Real-Time Price · USD
28.42
-0.06 (-0.23%)
Oct 16, 2026, 4:00 PM EDT - Market closed

CPSO Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Oct 16, 202628.4428.4428.4428.4228.42-0.22%6,395
Oct 15, 202628.5828.5828.4228.4828.480.06%16,053
Oct 14, 202628.4928.4928.4228.4628.46-0.28%4,531
Oct 13, 202628.4928.5428.4928.5428.540.11%2,903
Oct 12, 202628.5228.5328.5128.5128.51-0.11%3,661
Oct 9, 202628.5328.5528.5128.5428.540.08%11,666
Oct 8, 202628.5128.5328.4828.5228.520.01%10,981
Oct 7, 202628.5028.5328.4628.5228.52-0.05%9,630
Oct 6, 202628.4528.5528.4528.5328.530.29%8,510
Oct 5, 202628.5228.5328.4028.4528.450.12%5,748
Oct 2, 202628.4528.4728.4028.4228.420.04%28,495
Oct 1, 202628.3928.5528.3428.4028.400.29%53,797
Sep 30, 202628.3428.3628.3028.3228.32-0.12%11,961
Sep 29, 202628.3428.3628.3228.3628.360.12%9,700
Sep 28, 202628.3128.3628.3028.3228.32-3,768
Sep 25, 202628.2828.3228.2828.3228.320.03%1,166
Sep 24, 202628.3128.3128.3128.3128.31-0.02%168
Sep 23, 202628.3228.3228.3228.3228.320.05%135
Sep 22, 202628.3028.3028.3028.3028.300.01%53
Sep 21, 202628.3028.3028.3028.3028.300.04%22
Sep 18, 202628.3028.3028.2928.2928.290.09%476
Sep 17, 202628.2428.2728.2428.2728.27-0.04%240
Sep 16, 202628.2828.2828.2828.2828.280.12%583
Sep 15, 202628.2428.2428.2428.2428.24-0.05%7
Sep 14, 202628.2828.2828.2528.2528.250.01%598
Sep 11, 202628.2528.2528.2528.2528.250.05%128
Sep 10, 202628.2428.2728.2428.2428.23-0.02%1,609
Sep 9, 202628.2428.2428.2428.2428.24-0.04%737
Sep 8, 202628.2528.2528.2528.2528.25-114
Sep 4, 202628.2528.2528.2528.2528.250.04%199
Sep 3, 202628.1928.2628.1928.2428.240.07%1,234
Sep 2, 202628.2228.2228.2228.2228.220.07%38
Sep 1, 202628.2128.2128.2028.2028.20-0.04%250
Aug 31, 202628.2528.2528.2028.2128.21-5,513
Aug 28, 202628.2128.2128.2128.2128.210.02%183
Aug 27, 202628.2028.2028.2028.2028.200.05%198
Aug 26, 202628.1928.1928.1928.1928.190.09%99
Aug 25, 202628.1828.1828.1528.1728.170.04%947
Aug 24, 202628.1528.1628.1528.1628.16-4,011
Aug 21, 202628.1528.1528.1528.1528.150.09%7
Aug 20, 202628.1328.1328.1328.1328.13-0.06%9
Aug 19, 202628.1528.1528.1528.1528.15-0.02%36
Aug 18, 202628.1228.1928.1228.1528.15-1,712
Aug 17, 202628.1128.1728.1128.1528.150.03%1,284
Aug 14, 202628.1428.1428.1428.1428.140.04%7
Aug 13, 202628.1328.1328.1328.1328.13-0.03%10
Aug 12, 202628.1728.1728.1028.1428.140.12%1,523
Aug 11, 202628.1128.1128.1128.1128.11-0.05%337
Aug 10, 202628.1328.1328.1228.1228.12-0.02%107
Aug 7, 202628.1228.1328.0928.1328.130.09%3,409