Calamos S&P 500 Structured Alt Protection ETF - September

1D
1W
1M
3M
YTD
1Y
5Y
ALL

Why Robinhood?

Robinhood gives you the tools you need to put your money in motion. You can buy or sell CPST and other ETFs, options, and stocks.

About CPST

Calamos S&P 500 Structured Alt Protection ETFTM September (the Fund) seeks to provide investment results that, before taking fees and expenses into account, match the positive price return of the SPDR S&P 500 ETF Trust (Underlying ETF) up to a cap of 7.50% (the Cap) 

Category
Defined Outcome
CategoryDefined Outcome
Number of holdings
4
Number of holdings4
Inception Date
Sep 3, 2024
Inception DateSep 3, 2024

What's in this fund

Sectors

As of December 31, 2025
Technology33.56%
Financial Services12.65%
Healthcare11.47%
Consumer Cyclical9.95%
Communication Services8.76%
Industrials7.61%
Consumer Defensive5.72%
Energy3.44%
Utilities2.62%
Real Estate2.25%
Basic Materials1.97%

Top Holdings (111.90% of total assets)

As of December 31, 2025
NameSymbol% Assets
4spy 260831 C 4.45 4spy 260831 C 4.45102.51%
4spy 260831 C 687.56 4spy 260831 C 687.566.24%
4spy 260831 P 645.05 4spy 260831 P 645.053.15%

CPST Key Statistics

AUM
31.90M
AUM31.90M
Price-Earnings ratio
Price-Earnings ratio
30-Day yield
30-Day yield
Average volume
3.23K
Average volume3.23K
High today
$27.09
High today$27.09
Low today
$27.06
Low today$27.06
Open price
$27.06
Open price$27.06
Volume
3.11K
Volume3.11K
52 Week high
$27.24
52 Week high$27.24
52 Week low
$24.63
52 Week low$24.63
Expense ratio
0.69
Expense ratio0.69

Stock Snapshot

Calamos S&P 500 Structured Alt Protection ETF - September(CPST) stock is priced at $27.09, giving the company a market capitalization of 31.89M.

On 2026-03-09, Calamos S&P 500 Structured Alt Protection ETF - September(CPST) stock moved within a range of $27.06 to $27.09. With shares now at $27.09, the stock is trading +0.1% above its intraday low and 0.0% below the session's peak.

Trading activity shows a volume of 3.11K, compared to an average daily volume of 3.23K.

The stock's 52-week range extends from a low of $24.63 to a high of $27.24.

The stock's 52-week range extends from a low of $24.63 to a high of $27.24.

Average Annual Return

Similar Marketcap

This list is generated by looking at the six larger and six smaller companies by market cap in relation to this company.

Popular Stocks

This list is generated by looking at the top 100 stocks and ETFs most commonly held by Robinhood customers and showing a random subset

Newly Listed

This list is generated by showing companies that recently went public.

All investments involve risks, including the loss of principal. Performance data represents past performance and is no guarantee of future results. Investment returns and principal value will fluctuate and are subject to market volatility. An investment, when redeemed, may be worth more or less than the original cost. Current performance may be lower or higher than the performance data quoted. Options are risky and aren’t suitable for all investors. To learn more about risks, read the Options Disclosure Document.