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

CPST seeks to track the return of the SPDR S&P 500 ETF Trust (SPY), to a cap, with 100% downside hedge over a one-year outcome period. The actively managed fund holds FLEX options to obtain exposure. 

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 February 28, 2026
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 (111.05% of total assets)

As of February 28, 2026
NameSymbol% Assets
4spy 260831 C 4.45 4spy 260831 C 4.45102.37%
4spy 260831 C 687.56 4spy 260831 C 687.565.81%
4spy 260831 P 645.05 4spy 260831 P 645.052.87%

CPST Key Statistics

AUM
32.29M
AUM32.29M
Price-Earnings ratio
Price-Earnings ratio
30-Day yield
30-Day yield
Average volume
1.13K
Average volume1.13K
High today
High today
Low today
Low today
Open price
Open price
Volume
0.00
Volume0.00
52 Week high
$27.46
52 Week high$27.46
52 Week low
$24.73
52 Week low$24.73
Expense ratio
0.69
Expense ratio0.69

Stock Snapshot

With a market cap of 32.27M, Calamos S&P 500 Structured Alt Protection ETF - September(CPST) trades at $27.46.

On 2026-04-19, Calamos S&P 500 Structured Alt Protection ETF - September(CPST) stock opened at —, reached a high of —, and a low of —.

Calamos S&P 500 Structured Alt Protection ETF - September(CPST) shares are trading with a volume of 0, against a daily average of 1.13K.

In the last year, Calamos S&P 500 Structured Alt Protection ETF - September(CPST) shares hit a 52-week high of $27.46 and a 52-week low of $24.73.

In the last year, Calamos S&P 500 Structured Alt Protection ETF - September(CPST) shares hit a 52-week high of $27.46 and a 52-week low of $24.73.

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.