Calamos S&P 500 Structured Alt Protection ETF–October (CPSO) price, chart and fund profile

Price chart

Fund profile

CPSO 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. The fund aims to outperform cash holdings.

Issuer

Calamos Advisors LLC

Industry

—

Inception

Oct 1, 2024

Assets under management

$27.5M

Expense ratio

0.69%

Net asset value

$28.21

NAV as of

Aug 28, 2026

Distributions

Annually

Leverage

1×

Fund page

www.calamos.com↗

• What is Calamos S&P 500 Structured Alt Protection ETF–October (CPSO)?

  CPSO 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. The fund aims to outperform cash holdings.

• What is CPSO's expense ratio?

  Calamos S&P 500 Structured Alt Protection ETF–October charges an annual expense ratio of 0.69%. The fund is issued by Calamos Advisors LLC.

• How large is CPSO?

  Calamos S&P 500 Structured Alt Protection ETF–October manages $27.5M in assets and has traded since Oct 1, 2024.

• How do I buy shares of Calamos S&P 500 Structured Alt Protection ETF–October (CPSO)?

  CPSO trades commission-free with a Light Horse Securities brokerage account — from the mobile app, the web dashboard at portal.lighthorse.io, the trading API, or an AI agent connected over MCP. The trade panel on this page places the order once you are signed in.