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Calamos S&P 500 Structured Alt Protection ETF - September

CPSTNYSEARCACalamosAlternative

$28.13Today:- (-)1Y +5.28%

As of Oct 16, 2026 close

Assets (AUM)
$38.69M
Expense ratio
0.69%
Dividend yield
-
Holdings
-
52-week range
$26.68$28.30
Volume (live)
-
Avg. volume (3M)
10.60K

CPST ETF Historical Prices: Calamos S&P 500 Structured Alt Protection ETF - September

Complete OHLC price data, adjusted close prices, and daily trading volume for this Alternative ETF. Analyze trends with customizable time periods and intervals.

CPST Historical Price Chart: Trends & Patterns

Visualize price movements and trading patterns with adjustable time periods and data intervals.

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CPST Historical Price Data Table

Complete historical stock price data with OHLC prices, adjusted close, and daily trading volume. Filter by time interval and date range for detailed price history analysis.

Filter Historical Data

Active filters: 6 Months · Daily126 records
Showing 1-50 of 126
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CPST historical price data table with daily, weekly, monthly, quarterly, and yearly trading intervals. Track Open, High, Low, Close, Adjusted Close prices, and trading volume to analyze price trends, technical patterns, and market activity for comprehensive price history analysis.
DateOpenHighLowCloseAdj CloseVolume
Oct 16, 202628.1828.1828.1228.1328.136.02K
Oct 15, 202628.2228.2428.2028.2028.20874
Oct 14, 202628.2428.2428.1828.1828.184.88K
Oct 13, 202628.2328.2328.2328.2328.237
Oct 12, 202628.2528.2828.2228.2428.243.59K
Oct 9, 202628.2728.2728.2228.2528.251.13K
Oct 8, 202628.2528.2528.2128.2128.211.20K
Oct 7, 202628.3028.3028.1828.2328.2326.92K
Oct 6, 202628.2428.2428.2428.2428.24777
Oct 5, 202628.1828.2028.1828.1928.191.99K
Oct 2, 202628.1828.1828.1528.1728.172.06K
Oct 1, 202628.1128.1428.0828.1428.14102.80K
Sep 30, 202628.1328.1428.0928.1128.116.18K
Sep 29, 202628.0828.1028.0828.0928.084.27K
Sep 28, 202628.0828.0828.0828.0828.08124
Sep 25, 202628.1128.1628.1128.1428.142.85K
Sep 24, 202628.1028.1428.0928.0928.094.33K
Sep 23, 202628.0828.1428.0828.1228.1232.30K
Sep 22, 202628.0628.1828.0628.1428.144.79K
Sep 21, 202628.0828.1428.0828.1228.121.37K
Sep 18, 202628.0628.0628.0528.0628.06743
Sep 17, 202628.0328.0728.0228.0728.0610.93K
Sep 16, 202628.0328.0527.9227.9727.977.21K
Sep 15, 202628.2228.2228.0028.0128.019.98K
Sep 14, 202628.0428.1528.0328.0328.035.03K
Sep 11, 202628.0928.1128.0628.0628.068.93K
Sep 10, 202627.9928.0527.9928.0128.016.92K
Sep 9, 202628.1028.1028.0328.0728.079.85K
Sep 8, 202628.2028.2628.0928.1228.1217.96K
Sep 4, 202628.1828.1828.1128.1328.1313.44K
Sep 3, 202628.1428.2528.1128.1828.1824.62K
Sep 2, 202628.0928.1128.0428.0928.0925.87K
Sep 1, 202628.0028.1027.9828.0728.07102.60K
Aug 31, 202628.1328.1328.0728.1328.137.23K
Aug 28, 202628.1028.1328.0728.1028.105.40K
Aug 27, 202628.1028.1028.0928.0928.09457
Aug 26, 202628.0828.0828.0828.0828.0888
Aug 25, 202628.0828.1228.0728.0728.071.69K
Aug 24, 202628.0528.0528.0528.0528.059
Aug 21, 202628.0828.0828.0528.0528.05107
Aug 20, 202628.0528.0528.0528.0528.05100
Aug 19, 202628.0328.0428.0328.0428.04634
Aug 18, 202628.0828.0828.0228.0528.05776
Aug 17, 202628.0128.0728.0128.0528.05517
Aug 14, 202628.0428.0428.0428.0428.0417
Aug 13, 202628.0428.0428.0428.0428.0428
Aug 12, 202628.0428.0428.0028.0228.025.84K
Aug 11, 202628.0028.0227.9928.0128.013.45K
Aug 10, 202628.0128.0127.9928.0128.01771
Aug 7, 202628.0228.0228.0228.0228.0237
Show:
of 126

Source: Daily exchange trading data. Data as of Oct 16, 2026. Data sources and methodology

Understanding Historical ETF Price Data & OHLC Metrics

Open Price
The price at which the ETF opened for trading at the start of the trading session.
High Price
The highest price at which the ETF traded during the trading session.
Low Price
The lowest price at which the ETF traded during the trading session.
Close Price
The final price when trading closed for the session.
Adjusted Close Price
The closing price adjusted for corporate actions such as dividends, stock splits, and rights offerings. Used for accurate long-term historical price analysis and return calculations.
Volume
The total number of shares traded during the session, indicating trading activity and liquidity.

Using Historical Prices for Technical Analysis

Traders and investors use historical price data to identify patterns, support and resistance levels, and price trends. By analyzing OHLC values across different intervals, you can spot key market signals.

Trading Ranges
High and Low prices reveal daily and weekly volatility patterns, helping identify potential breakout or consolidation zones.
Price Momentum
Close price changes across intervals indicate bullish or bearish activity and overall trend direction.
Volume Confirmation
Trading volume validates price movements and trend strength. High volume typically confirms significant price changes.
Long-term Trends
Monthly and yearly intervals reveal major price patterns and cycles, useful for position trading and portfolio analysis.

Frequently Asked Questions About Calamos S&P 500 Structured Alt Protection ETF - September Historical Prices

What is OHLC data for CPST?

OHLC stands for Open, High, Low, Close - the four key price points for CPST during each trading period. Open is the first trade price, High is the maximum price reached, Low is the minimum price, and Close is the final trade price for the period.

What is adjusted close price for CPST?

The adjusted close price for CPST is the closing price modified to account for corporate actions like stock splits and dividend distributions. This provides accurate historical price comparison for long-term analysis.

How far back does CPST price history go?

CPST historical price data is available from the ETF's inception on Sep 2, 2024. Use the "Max" time period option to view all available historical data, or select specific periods like 1 year, 5 years, or 10 years.

What time intervals are available for CPST data?

CPST historical data is available in multiple intervals: daily (individual trading days), weekly (week-ending prices), monthly (month-end prices), quarterly (quarter-end prices), and yearly (year-end prices).

Why is trading volume important for CPST?

Trading volume for CPST indicates market activity and liquidity. High volume often confirms price trends, while low volume may suggest weak price movements. Volume analysis helps validate technical patterns and identify potential reversals.