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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
$27.67 0.00 (0.00%)
As of 05/22/2026 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 8.30%, with a year-to-date return of 2.41%. In the past month, the fund has increased 0.73%, reflecting recent market activity.

As of the latest close, Calamos S&P 500 Structured Alt Protection ETF - September traded at $27.67 with a market cap of $33.20 million and volume of 224 shares.

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5 Day
Performance
0.00%
1 Month
Performance
+0.73%
3 Month
Performance
+1.77%
Year-To-Date
Performance
+2.41%
1 Year
Performance
+8.30%

CPST Stock Chart for Tuesday, May, 26, 2026

CPST Chart by TradingView

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

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
05/25/2026$27.67$27.67$27.67$27.67224 shs$33.20 million
05/22/2026$27.67$27.67$27.67$27.67224 shs$33.20 million
05/21/2026$27.64$27.67
+0.11%		$27.67$27.6742 shs$33.20 million
05/20/2026$27.63$27.64
+0.04%		$27.64$27.61738 shs$33.17 million
05/19/2026$27.63$27.63$27.66$27.63808 shs$33.16 million
05/18/2026$27.64$27.63
-0.04%		$27.63$27.605,491 shs$33.16 million
05/15/2026$27.66$27.64
-0.07%		$27.64$27.61732 shs$33.17 million
05/14/2026$27.64$27.66
+0.07%		$27.66$27.66266 shs$33.19 million
05/13/2026$27.62$27.64
+0.07%		$27.64$27.6494 shs$33.17 million
05/12/2026$27.59$27.62
+0.11%		$27.62$27.56830 shs$33.14 million
05/11/2026$27.58$27.59
+0.04%		$27.60$27.077,619 shs$33.11 million
05/08/2026$27.56$27.58
+0.07%		$27.59$27.57360 shs$33.10 million
05/07/2026$27.58$27.56
-0.07%		$27.56$27.5611,121 shs$33.07 million
05/06/2026$27.54$27.58
+0.15%		$27.59$27.56955 shs$33.10 million
05/05/2026N/A$27.54$27.54$27.511,298 shs$33.05 million
04/30/2026$27.46$27.51
+0.18%		$27.52$27.47211 shs$33.01 million
04/29/2026$27.48$27.46
-0.07%		$27.53$27.442,506 shs$32.95 million
04/28/2026$27.47$27.48
+0.04%		$27.48$27.48283 shs$32.98 million
04/27/2026$27.47$27.47$27.47$27.471 shs$32.96 million
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This page (NYSEARCA:CPST) was last updated on 5/26/2026 by MarketBeat.com Staff.
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