Calamos S&P 500 Structured Alt Protection ETF - April

CPSP
ETF Ticker

+4.85%

+6.30%

NYSE Arca Exchange

Alternative

United States

Risk-Controlled

The Calamos S&P 500 Structured Alt Protection ETF - April, CPSP_US, is an actively managed strategy providing exposure to United States, Risk-Controlled Alternative. It is listed on the NYSE Arca Exchange and has assets under management of $23.8m (as of Aug 31, 2026). The ETF trades in USD and was listed on the exchange on Apr 1, 2025. It has a net expense ratio of 69bps. (All data in USD as of Oct 12, 2026 unless stated.)

The investment framework informing the actively managed Calamos S&P 500 Structured Alt Protection ETF – April packages OCC-cleared FLEX options on the SPDR S&P 500 ETF Trust to seek full capital protection at the end of each April–to–April outcome period while participating in upside to a cap established at the outset. Implementation concentrates risk in a synchronized set of FLEX contracts (custom strikes, European exercise) sized to target 100% downside protection (before fees) and 1:1 price participation up to the cap; residual assets may be held in cash or short-duration U.S. government instruments as collateral. Because dividends are excluded from option replication, exposure reflects price return only. Shares list on NYSE Arca with in-kind and cash Creation Units supporting investability; practical capacity ties to listed FLEX liquidity and clearing access. The option sleeve is generally held static until expiry, then rolled into a new series each April.

ETF Details

Key Facts

Issuer:
Calamos
AUM:
$23.8m (as of Aug 31, 2026)
Net Expense Ratio:
69 bps
Inception Date:
Apr 1, 2025
Index:
Actively managed strategy
Dividend Frequency:
N/A

Trading

Ticker:
CPSP
Exchange:
NYSE Arca Exchange
ISIN:
US12811T7533
Trading Currency:
USD
Domicile:
United States

Classification & Risk

Asset Class:
Alternative
Asset Region:
United States
Theme:
Risk-Controlled
Economic Development:
Developed Markets
1 Year Volatility:
1.26%
3 Year Volatility:
N/A
5 Year Volatility:
N/A

Performance

TTM Dividend Yield:
0.00% (verify with issuer)
1 Month Performance:
0.50%
3 Month Performance:
1.33%
6 Month Performance:
2.78%
1 Year Performance:
6.30%
3 Year Performance:
N/A
5 Year Performance:
N/A
Investment Proposition

Calamos S&P 500 Structured Alt Protection ETF – April (CPSP) offers a rules-based options overlay that targets a predefined buffer against losses and capped participation in advances for U.S. large-cap equities, resetting on an annual April schedule. The approach converts market exposure into a shaped return profile using exchange-listed options, emphasizing clarity of expected outcomes and helping investors stay invested through volatility. Calamos brings long-standing experience in risk-managed equity, seeking consistent implementation and measured turnover across the option ladder. Large caps often dominate in quality- and profitability-led phases; the fund’s cap can temper upside during momentum surges but may add comfort during drawdowns and policy-driven shocks. Portfolio roles include a core-adjacent, downside-aware sleeve, a behavioral anchor to reduce panic-selling risk, and a tactical tool to de-risk without moving to cash. Typical users include wealth managers running guardrail-based equity allocations and institutions incorporating outcome-defined exposures alongside policy benchmarks. Key risk to monitor: cap-related opportunity cost in persistent bull trends, particularly when leadership is narrow and returns are front-loaded.

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