Calamos Nasdaq-100 Structured Alt Protection ETF - September (CPNS)

CPNS Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 17, 2026	28.04	28.04	28.04	28.04	28.04	-0.19%	477
Jun 16, 2026	28.08	28.11	28.07	28.09	28.09	-0.03%	2,315
Jun 15, 2026	28.10	28.10	28.10	28.10	28.10	0.23%	24
Jun 12, 2026	27.95	28.04	27.95	28.04	28.04	0.10%	1,724
Jun 11, 2026	27.99	28.01	27.95	28.01	28.01	0.11%	24,335
Jun 10, 2026	27.98	27.98	27.94	27.98	27.98	-0.08%	1,333
Jun 9, 2026	27.95	28.00	27.95	28.00	28.00	-0.07%	437
Jun 8, 2026	28.03	28.03	28.02	28.02	28.02	0.14%	225
Jun 5, 2026	28.04	28.04	27.98	27.98	27.98	-0.25%	244
Jun 4, 2026	28.08	28.08	28.05	28.05	28.05	0.05%	1,256
Jun 3, 2026	28.05	28.05	28.04	28.04	28.04	-0.04%	1,616
Jun 2, 2026	28.05	28.05	28.05	28.05	28.05	0.02%	2
Jun 1, 2026	28.04	28.04	28.04	28.04	28.04	-0.02%	61
May 29, 2026	28.04	28.06	28.04	28.05	28.05	0.06%	5,433
May 28, 2026	28.05	28.05	28.02	28.03	28.03	0.01%	3,959
May 27, 2026	28.03	28.03	28.01	28.03	28.03	-0.03%	1,424
May 26, 2026	28.04	28.04	28.04	28.04	28.04	0.13%	60
May 22, 2026	28.00	28.00	28.00	28.00	28.00	0.19%	20
May 21, 2026	27.95	27.96	27.94	27.95	27.95	-0.10%	355
May 20, 2026	27.99	27.99	27.97	27.98	27.98	0.08%	894
May 19, 2026	27.98	27.98	27.95	27.95	27.95	-0.02%	717
May 18, 2026	27.92	27.96	27.82	27.96	27.96	0.03%	20,923
May 15, 2026	27.94	27.96	27.93	27.95	27.95	-	13,075
May 14, 2026	27.95	27.95	27.95	27.95	27.95	0.06%	-
May 13, 2026	27.93	27.93	27.93	27.93	27.93	-0.04%	1,230
May 12, 2026	27.91	27.94	27.91	27.94	27.94	0.06%	1,100
May 11, 2026	27.93	27.96	27.88	27.93	27.93	-0.01%	1,770
May 8, 2026	27.92	27.93	27.92	27.93	27.93	0.10%	200
May 7, 2026	27.89	27.91	27.88	27.90	27.90	0.07%	1,067
May 6, 2026	27.87	27.88	27.87	27.88	27.88	0.10%	319
May 5, 2026	27.87	27.87	27.85	27.85	27.85	0.11%	1,520
May 4, 2026	27.83	27.84	27.81	27.82	27.82	-	1,910
May 1, 2026	27.83	27.83	27.82	27.82	27.82	-0.01%	22,867
Apr 30, 2026	27.78	27.82	27.78	27.82	27.82	0.23%	2,389
Apr 29, 2026	27.75	27.76	27.75	27.76	27.76	-0.02%	363
Apr 28, 2026	27.76	27.76	27.76	27.76	27.76	-0.09%	3
Apr 27, 2026	27.79	27.79	27.79	27.79	27.79	0.04%	22
Apr 24, 2026	27.74	27.78	27.74	27.78	27.78	0.22%	961
Apr 23, 2026	27.71	27.73	27.71	27.72	27.72	-0.04%	1,315
Apr 22, 2026	27.71	27.73	27.69	27.73	27.73	0.18%	3,934
Apr 21, 2026	27.69	27.69	27.68	27.68	27.68	-0.07%	121
Apr 20, 2026	27.70	27.70	27.70	27.70	27.70	-0.02%	110
Apr 17, 2026	27.70	27.70	27.70	27.70	27.70	0.16%	82
Apr 16, 2026	27.66	27.66	27.66	27.66	27.66	0.10%	158
Apr 15, 2026	27.60	27.63	27.59	27.63	27.63	0.20%	1,096
Apr 14, 2026	27.55	27.58	27.51	27.58	27.58	0.15%	11,204
Apr 13, 2026	27.49	27.53	27.49	27.53	27.53	0.17%	415
Apr 10, 2026	27.46	27.49	27.46	27.49	27.49	0.02%	100
Apr 9, 2026	27.47	27.48	27.47	27.48	27.48	0.17%	109
Apr 8, 2026	27.43	27.43	27.43	27.43	27.43	0.51%	1,320

Data Source: S&P Global Market Intelligence Last updated: Jun 17, 2026

Historical price data is provided by S&P Global Market Intelligence. New prices are added after the close of each trading day, and past prices are adjusted for stock splits.

Update frequency:

Daily

Last checked:

Jun 17, 2026

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