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Calamos S&P 500 Structured Alt Protection ETF - September (CPST) Chart & Stock Price History

Calamos S&P 500 Structured Alt Protection ETF - September logo
$28.13 -0.05 (-0.18%)
As of 04:10 PM Eastern
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Calamos S&P 500 Structured Alt Protection ETF - September Stock Price Performance

The Calamos S&P 500 Structured Alt Protection ETF - September (CPST) fund chart highlights key performance trends across multiple timeframes. Over the last 12 months, the fund's price has increased 5.79%, with a year-to-date return of 4.11%. In the past month, the fund has increased 0.46%, reflecting recent market activity.

As of the latest close, Calamos S&P 500 Structured Alt Protection ETF - September traded at $28.13 with a market cap of $33.76 million and volume of 13,444 shares.

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5 Day
Performance
+0.11%
1 Month
Performance
+0.46%
3 Month
Performance
+1.37%
Year-To-Date
Performance
+4.11%
1 Year
Performance
+5.79%

CPST Stock Chart for Friday, September, 4, 2026

CPST Chart by TradingView

Calamos S&P 500 Structured Alt Protection ETF - September Stock Price History

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
09/04/2026$28.18$28.13
-0.18%		$28.18$28.1113,444 shs$33.76 million
09/03/2026$28.09$28.18
+0.32%		$28.25$28.1124,620 shs$33.82 million
09/02/2026$28.07$28.09
+0.07%		$28.11$28.0425,874 shs$33.71 million
09/01/2026$28.13$28.07
-0.21%		$28.10$27.98102,596 shs$33.68 million
08/31/2026$28.10$28.13
+0.11%		$28.13$28.077,233 shs$33.76 million
08/28/2026$28.09$28.10
+0.04%		$28.13$28.075,398 shs$33.72 million
08/27/2026$28.08$28.09
+0.04%		$28.10$28.09458 shs$33.71 million
08/26/2026$28.07$28.08
+0.04%		$28.08$28.0888 shs$33.70 million
08/25/2026$28.06$28.07
+0.04%		$28.12$28.071,692 shs$33.68 million
08/24/2026$28.06$28.06$28.06$28.069 shs$33.67 million
08/21/2026$28.05$28.06
+0.04%		$28.08$28.06107 shs$33.67 million
08/20/2026$28.04$28.05
+0.04%		$28.05$28.05100 shs$33.66 million
08/19/2026$28.05$28.04
-0.04%		$28.04$28.03634 shs$33.65 million
08/18/2026$28.05$28.05$28.08$28.02776 shs$33.66 million
08/17/2026$28.04$28.05
+0.04%		$28.07$28.01517 shs$33.66 million
08/14/2026$28.04$28.04$28.04$28.0417 shs$33.65 million
08/13/2026$28.02$28.04
+0.07%		$28.04$28.0428 shs$33.65 million
08/12/2026$28.01$28.02
+0.04%		$28.04$28.005,844 shs$33.62 million
08/11/2026$28.01$28.01$28.02$27.993,452 shs$33.61 million
08/10/2026$28.02$28.01
-0.04%		$28.01$27.99771 shs$33.61 million
08/07/2026$28.02$28.02$28.03$28.0337 shs$33.62 million
08/06/2026$28.00$28.02
+0.07%		$28.02$27.993,632 shs$33.62 million
08/05/2026$28.00$28.00$28.01$27.984,560 shs$33.60 million
08/04/2026$28.00$28.00$28.01$27.97926 shs$33.60 million
08/03/2026$27.98$28.00
+0.07%		$28.00$27.973,851 shs$33.60 million
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This page (NYSEARCA:CPST) was last updated on 9/4/2026 by MarketBeat.com Staff.
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