Stock listing

NYSE Arca:CPSU Calamos S&P 500 Structured Alt Protection ETF June Stock

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Share price · AMEX:CPSU

$28.06 USD +0.12 (+0.4%)

Close on Nov 4, 2026

Past year +4.7% · daily closes, Nov 4, 2025 – Nov 4, 2026, adjusted for splits

Day range: $28.06 – $28.07 USDNov 4, 2026
Volume: 4,459 sharesNov 4, 2026
52-week range: $26.73 – $29.01 USDLowest and highest trades, Nov 5, 2025 – Nov 4, 2026
Traded on an average day: $41,635 USDMedian day 658 shares · last 3 months, Aug 4, 2026 – Nov 4, 2026

Daily closes

Last 3 months, Aug 4, 2026 – Nov 4, 2026 · AMEX:CPSU · USD, adjusted for splits

Day	Close	Change	%	Open	High	Low	Volume
Wed, Nov 4	$28.06	+0.116	+0.4%	$28.07	$28.07	$28.06	4,459
Tue, Nov 3	$27.95	+0.018	+0.1%	$27.95	$27.95	$27.95	69
Mon, Nov 2	$27.93	-0.024	-0.1%	$27.93	$27.93	$27.93	125
Fri, Oct 30	$27.95	-0.119	-0.4%	$28.01	$28.01	$27.95	615
Thu, Oct 29	$28.07	+0.01	0.0%	$28.07	$28.07	$28.07	460
Wed, Oct 28	$28.06	+0.014	+0.1%	$28.04	$28.10	$28.02	1,609
Tue, Oct 27	$28.05	+0.031	+0.1%	$28.01	$28.05	$28.01	2,013
Mon, Oct 26	$28.02	+0.049	+0.2%	$27.97	$28.02	$27.97	1,354
Fri, Oct 23	$27.97	-0.04	-0.1%	$27.97	$27.97	$27.97	100
Thu, Oct 22	$28.01	-0.045	-0.2%	$28.02	$28.03	$27.96	3,800
Wed, Oct 21	$28.05	+0.04	+0.1%	$28.05	$28.05	$28.05	100
Tue, Oct 20	$28.01	+0.007	0.0%	$28.01	$28.01	$28.01	100
Mon, Oct 19	$28.00	+0.033	+0.1%	$28.05	$28.05	$28.00	200
Fri, Oct 16	$27.97	-0.058	-0.2%	$27.99	$27.99	$27.97	800
Thu, Oct 15	$28.03	+0.029	+0.1%	$27.96	$28.03	$27.96	1,000
Wed, Oct 14	$28.00	-0.06	-0.2%	$27.98	$28.02	$27.95	1,100
Tue, Oct 13	$28.06	-0.004	0.0%	$28.03	$28.07	$28.02	9,400
Mon, Oct 12	$28.06	-0.007	0.0%	$28.09	$28.10	$28.06	800
Fri, Oct 9	$28.07	+0.051	+0.2%	$28.07	$28.07	$28.07	100
Thu, Oct 8	$28.02	-0.03	-0.1%	$28.02	$28.02	$28.02	100
Wed, Oct 7	$28.05	-0.05	-0.2%	$28.05	$28.05	$28.05	200
Tue, Oct 6	$28.10	+0.095	+0.3%	$28.09	$28.10	$28.09	200
Mon, Oct 5	$28.01	+0.03	+0.1%	$27.99	$28.04	$27.99	4,400
Fri, Oct 2	$27.98	+0.095	+0.3%	$27.98	$27.98	$27.98	100
Thu, Oct 1	$27.88	-0.017	-0.1%	$27.88	$27.88	$27.88	300
Wed, Sep 30	$27.90	+0.001	0.0%	$27.91	$27.91	$27.89	400
Tue, Sep 29	$27.90	+0.003	0.0%	$27.90	$27.90	$27.90	100
Mon, Sep 28	$27.89	-0.056	-0.2%	$27.89	$27.89	$27.89	100
Fri, Sep 25	$27.95	+0.079	+0.3%	$27.92	$27.95	$27.92	700
Thu, Sep 24	$27.87	-0.01	0.0%	$27.92	$27.92	$27.87	500
Wed, Sep 23	$27.88	-0.04	-0.1%	$27.89	$27.89	$27.88	300
Tue, Sep 22	$27.92	+0.01	0.0%	$27.92	$27.92	$27.91	928
Mon, Sep 21	$27.91	+0.056	+0.2%	$27.89	$27.91	$27.89	1,319
Fri, Sep 18	$27.85	+0.03	+0.1%	$27.80	$27.85	$27.80	1,917
Thu, Sep 17	$27.82	+0.038	+0.1%	$27.83	$27.85	$27.82	600
Wed, Sep 16	$27.79	-0.034	-0.1%	$27.77	$27.79	$27.77	200
Tue, Sep 15	$27.82	-0.016	-0.1%	$27.83	$27.83	$27.82	200
Mon, Sep 14	$27.84	-0.043	-0.2%	$27.79	$27.86	$27.78	9,000
Fri, Sep 11	$27.88	+0.068	+0.2%	$27.88	$27.88	$27.88	100
Thu, Sep 10	$27.81	-0.05	-0.2%	$27.79	$27.87	$27.79	8,600
Wed, Sep 9	$27.86	-0.024	-0.1%	$27.86	$27.86	$27.86	100
Tue, Sep 8	$27.89	-0.028	-0.1%	$27.93	$27.93	$27.89	1,500
Fri, Sep 4	$27.91	-0.005	0.0%	$27.92	$27.96	$27.88	2,600
Thu, Sep 3	$27.92	+0.054	+0.2%	$27.92	$27.92	$27.92	100
Wed, Sep 2	$27.86	+0.033	+0.1%	$27.84	$27.86	$27.84	2,800
Tue, Sep 1	$27.83	-0.054	-0.2%	$27.83	$27.89	$27.80	6,400
Mon, Aug 31	$27.89	-0.015	-0.1%	$27.84	$27.89	$27.84	1,500
Fri, Aug 28	$27.90	-0.02	-0.1%	$27.94	$27.94	$27.90	600
Thu, Aug 27	$27.92	+0.04	+0.1%	$27.90	$27.96	$27.89	1,900
Wed, Aug 26	$27.88	-0.02	-0.1%	$27.90	$27.90	$27.88	1,200
Tue, Aug 25	$27.90	+0.035	+0.1%	$27.86	$27.90	$27.86	246
Mon, Aug 24	$27.87	-0.032	-0.1%	$27.86	$27.87	$27.86	515
Fri, Aug 21	$27.90	+0.025	+0.1%	$27.90	$27.90	$27.90	1,000
Thu, Aug 20	$27.87	-0.041	-0.1%	$27.90	$27.91	$27.86	1,200
Wed, Aug 19	$27.91	+0.013	0.0%	$27.89	$27.91	$27.89	400
Tue, Aug 18	$27.90	-0.026	-0.1%	$27.90	$27.90	$27.90	100
Mon, Aug 17	$27.93	-0.024	-0.1%	$27.91	$27.96	$27.91	3,300
Fri, Aug 14	$27.95	+0.01	0.0%	$27.93	$27.97	$27.93	1,300
Thu, Aug 13	$27.94	+0.07	+0.3%	$27.87	$27.94	$27.87	5,400
Wed, Aug 12	$27.87	-0.015	-0.1%	$27.85	$27.87	$27.85	300
Tue, Aug 11	$27.89	-0.01	0.0%	$27.92	$27.92	$27.87	2,385
Mon, Aug 10	$27.90	-0.02	-0.1%	$27.88	$27.93	$27.87	2,280
Fri, Aug 7	$27.92	+0.04	+0.1%	$27.90	$27.92	$27.90	400
Thu, Aug 6	$27.88	-0.005	0.0%	$27.90	$27.90	$27.87	1,000
Wed, Aug 5	$27.88	+0.001	0.0%	$27.88	$27.88	$27.88	100
Tue, Aug 4	$27.88	+0.094	+0.3%	$27.81	$27.89	$27.81	1,300

Ticker: NYSE Arca:CPSU
Asset type: ETF
Exchange: NYSE Arca
Currency: USD

Calamos S&P 500 Structured Alt Protection ETF June on 6ix

What it is: Exchange-traded fund (ETF)