Calamos S&P 500 Structured Alt Protection ETF… (CPSF) Performance
CPSF total return
Distributions reinvested · as of Oct 23, 2026- YTD
- +4.3% since Dec 31, 2025
- 1 year
- +5.7% total return
- Since first price
- +10.7% since 2025
CPSF trailing returns vs SPY, QQQ, AGG
| Period | CPSF total return | Price only | S&P 500 (SPY) | Nasdaq-100 (QQQ) | U.S. bonds (AGG) |
|---|---|---|---|---|---|
| 1 month | +0.2% | +0.2% | −1.0% | −5.0% | +0.9% |
| 3 months | +1.6% | +1.6% | +3.2% | +1.9% | −0.4% |
| 6 months | +2.7% | +2.7% | +7.8% | +8.4% | −1.5% |
| YTD | +4.3% | +4.3% | +12.3% | +15.1% | −1.0% |
| 1 year | +5.7% | +5.7% | +14.4% | +15.9% | −1.1% |
| Since inceptionFeb 3, 2025 | +10.7% | +10.7% | — | — | — |
Total return from adjusted closes (distributions reinvested, before tax). Periods of 3 years or more are also shown annualized. Price only excludes distributions.
Growth of $10,000: CPSF vs SPY
From Feb 3, 2025: CPSF grew to $11,071, SPY to $12,963.
Year-end values with distributions reinvested, no taxes or trading costs. Start: first common trading day of both funds.
CPSF returns by calendar year
2026 is year to date.
CPSF annual returns table
| Year | CPSF | Largest drop | SPY | QQQ | AGG |
|---|---|---|---|---|---|
| 2026YTD | +4.3% | −1.3% | +12.3% | +15.1% | −1.0% |
Largest drop = deepest fall from a high within that calendar year.
Calendar-year return vs largest drop within the year
Most years include a sizable fall at some point even when the year ends higher.
CPSF risk statistics
| Statistic | Since 2025 |
|---|---|
| Annualized return | +6.5% |
| Volatility (annualized) | 2.2% |
| Sharpe ratio | 1.14 |
| Sortino ratio | 1.80 |
| Best month | +1.7% |
| Worst month | −1.1% |
| Best 12 months | +8.4% |
| Worst 12 months | +5.8% |
| Positive months | 89% |
| Beta vs S&P 500 | — |
| Correlation with S&P 500 | — |
From monthly total returns. Sharpe and Sortino use 1–3 month T-bills (BIL) as the risk-free rate, so they need history from 2007 on.
CPSF rolling returns
| Holding period | Periods | Worst | Median | Best | Positive |
|---|---|---|---|---|---|
| 1-year | 9 | +5.5% | +6.5% | +8.4% | 100% |
Every holding period starting at a month-end since 2025. Returns for 3 years and longer are annualized.
CPSF performance overview
Calamos S&P 500 Structured Alt Protection ETF… (CPSF) returned +5.7% over the past year, with distributions reinvested. Since its first recorded price on Feb 3, 2025 it has returned +10.7%. Over the same year S&P 500 (SPY) returned +14.4%.
Related: CPSF chart. See the CPSF overview for the latest quote and fund facts.
CPSF performance FAQ
What is the CPSF return over the past year?
CPSF returned +5.7% over the 12 months to October 23, 2026, including reinvested distributions. On price alone it rose 5.7%.
How much would $10,000 invested in CPSF be worth?
$10,000 invested in CPSF at its first recorded close on February 3, 2025 would be worth about $11,071 on October 23, 2026 with distributions reinvested.
How volatile is CPSF?
Over the past history CPSF had an annualized volatility of 2.2% and a Sharpe ratio of 1.14 (excess return over 1–3 month T-bills per unit of risk).