Calamos S&P 500 Structured Alt Protection ETF - September

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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) 

Index-Tracked
Index-Tracked
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 October 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 (114.85% of total assets)

As of October 31, 2025
NameSymbol% Assets
4spy 260831 C 4.45 4spy 260831 C 4.45103.09%
4spy 260831 C 687.56 4spy 260831 C 687.567.80%
4spy 260831 P 645.05 4spy 260831 P 645.053.96%

CPST Key Statistics

AUM
31.88M
AUM31.88M
Price-Earnings ratio
Price-Earnings ratio
30-Day yield
30-Day yield
Average volume
1.46K
Average volume1.46K
High today
$27.09
High today$27.09
Low today
$27.09
Low today$27.09
Open price
$27.09
Open price$27.09
Volume
2.18K
Volume2.18K
52 Week high
$27.09
52 Week high$27.09
52 Week low
$24.63
52 Week low$24.63
Expense ratio
0.69
Expense ratio0.69

Stock Snapshot

With a market cap of 31.82M, Calamos S&P 500 Structured Alt Protection ETF - September(CPST) trades at $27.09.

On 2026-01-07, Calamos S&P 500 Structured Alt Protection ETF - September(CPST) stock traded between a low of $27.09 and a high of $27.09. Shares are currently priced at $27.09, which is 0.0% above the low and -0.0% below the high.

Calamos S&P 500 Structured Alt Protection ETF - September(CPST) shares are trading with a volume of 2.18K, against a daily average of 1.46K.

During the past year, Calamos S&P 500 Structured Alt Protection ETF - September(CPST) stock moved between $24.63 at its lowest and $27.09 at its peak.

During the past year, Calamos S&P 500 Structured Alt Protection ETF - September(CPST) stock moved between $24.63 at its lowest and $27.09 at its peak.

Average Annual Return

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.