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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
$28.05 +0.01 (+0.02%)
As of 10:52 AM Eastern
This is a fair market value price provided by Massive. Learn more.
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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 6.03%, with a year-to-date return of 3.80%. In the past month, the fund has increased 0.49%, reflecting recent market activity.

As of the latest close, Calamos S&P 500 Structured Alt Protection ETF - September traded at $28.04 with a market cap of $33.65 million and volume of 28 shares.

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5 Day
Performance
+0.09%
1 Month
Performance
+0.49%
3 Month
Performance
+1.40%
Year-To-Date
Performance
+3.80%
1 Year
Performance
+6.03%

CPST Stock Chart for Friday, August, 14, 2026

CPST Chart by TradingView

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

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
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
07/31/2026$27.93$27.98
+0.18%		$27.98$27.93813 shs$33.58 million
07/30/2026$27.90$27.93
+0.11%		$27.93$27.915,457 shs$33.52 million
07/29/2026$27.93$27.90
-0.11%		$27.92$27.861,593 shs$33.48 million
07/28/2026$27.91$27.93
+0.07%		$27.93$27.9313 shs$33.52 million
07/27/2026$27.91$27.91$27.91$27.8814,719 shs$33.49 million
07/24/2026$27.89$27.91
+0.07%		$27.91$27.881,503 shs$33.49 million
07/23/2026$27.92$27.89
-0.11%		$27.92$27.89219 shs$33.47 million
07/22/2026$27.92$27.92$27.92$27.901,497 shs$33.50 million
07/21/2026$27.90$27.92
+0.07%		$27.92$27.928 shs$33.50 million
07/20/2026$27.89$27.90
+0.04%		$27.93$27.891,409 shs$33.48 million
07/17/2026$27.91$27.89
-0.07%		$27.89$27.87426 shs$33.47 million
07/16/2026$27.91$27.91$27.93$27.91455 shs$33.49 million
07/15/2026$27.91$27.91$27.93$27.91255 shs$33.49 million
07/14/2026$27.89$27.91
+0.07%		$27.93$27.881,929 shs$33.49 million
07/13/2026$27.90$27.89
-0.04%		$27.89$27.897 shs$33.47 million
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This page (NYSEARCA:CPST) was last updated on 8/14/2026 by MarketBeat.com Staff.
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