Calamos S&P 500 Structured Alt Protection ETF - September (CPST) Alternatives
Calamos S&P 500 Structured Alt Protection ETF - September (CPST) belongs to the Defined Outcome category. Below you'll find alternative ETFs from the same category, ranked by key criteria, plus funds that investors commonly compare with CPST. Use the tables to find lower-cost options, better risk-adjusted returns, or funds that fit a different role in your portfolio.
Cheapest Alternatives to CPST
CPST charges 0.69% annually. Among ETFs in the Defined Outcome category, these options have the lowest expense ratios among CPST alternatives.
| Symbol | Name | Expense Ratio | Inception | |
|---|---|---|---|---|
| Fidelity Dynamic Buffered Equity ETF | 0.48% | Apr 9, 2024 | CPST vs FBUF | |
| iShares Large Cap Max Buffer Sep ETF | 0.50% | Sep 30, 2024 | CPST vs SMAX | |
| iShares Large Cap Max Buffer December ETF | 0.50% | Dec 31, 2024 | CPST vs DMAX | |
| PGIM Laddered S&P 500 Buffer 12 ETF | 0.50% | Jun 11, 2024 | CPST vs BUFP | |
| PGIM Laddered S&P 500 Buffer 20 ETF | 0.50% | Jun 11, 2024 | CPST vs PBFR |
Best Risk-Adjusted Alternatives to CPST
Among ETFs in the Defined Outcome category, these options rank highest on PortfoliosLab's risk-adjusted score, which accounts for volatility, drawdown, and return consistency over a 1-year period.
| Symbol | Name | Risk / Return Rank | Inception | |
|---|---|---|---|---|
| iShares Large Cap Max Buffer Mar ETF | 98 | Mar 31, 2025 | CPST vs MMAX | |
| Innovator Emerging Markets Power Buffer ETF - Apri... | 97 | Mar 31, 2021 | CPST vs EAPR | |
| Innovator Equity Defined Protection ETF - 1 Yr Apr... | 97 | Apr 1, 2025 | CPST vs ZAPR | |
| Innovator Premium Income 15 Buffer ETF - July | 97 | Jun 28, 2024 | CPST vs LJUL | |
| Innovator Russell 2000 Power Buffer ETF - April | 97 | Mar 31, 2020 | CPST vs KAPR |
Top Performing CPST Alternatives (YTD)
CPST alternatives from the Defined Outcome category, sorted by year-to-date return.
| Symbol | Name | YTD Return | Inception | |
|---|---|---|---|---|
| Innovator Russell 2000 Power Buffer ETF - April | 6.95% | Mar 31, 2020 | CPST vs KAPR | |
| Innovator Emerging Markets Power Buffer ETF - Apri... | 6.65% | Mar 31, 2021 | CPST vs EAPR | |
| Innovator Emerging Markets 10 Buffer ETF - Quarter... | 6.55% | Jun 28, 2024 | CPST vs EBUF | |
| Innovator U.S. Equity Buffer ETF - April | 6.07% | Mar 29, 2019 | CPST vs BAPR | |
| FT Cboe Vest Nasdaq-100 Buffer ETF - March | 6.03% | Mar 19, 2021 | CPST vs QMAR |
Lowest Volatility Alternatives to CPST
CPST alternatives from the Defined Outcome category, sorted by annualized volatility over the past year.
| Symbol | Name | Volatility 1Y | Inception | |
|---|---|---|---|---|
| Innovator Equity Defined Protection ETF - 1 Yr May | 1.52% | May 1, 2025 | CPST vs ZMAY | |
| iShares Large Cap Max Buffer Mar ETF | 1.85% | Mar 31, 2025 | CPST vs MMAX | |
| Innovator Premium Income 15 Buffer ETF - July | 1.92% | Jun 28, 2024 | CPST vs LJUL | |
| Innovator Equity Defined Protection ETF - 1 Yr Jun... | 1.95% | May 30, 2025 | CPST vs ZJUN | |
| AllianzIM U.S. Equity Buffer100 Protection ETF | 1.97% | Jun 30, 2025 | CPST vs AIOO |
Lowest Drawdown Alternatives to CPST
CPST alternatives from the Defined Outcome category, sorted by maximum drawdown over the past year.
| Symbol | Name | Max Drawdown 1Y | Inception | |
|---|---|---|---|---|
| Innovator Premium Income 15 Buffer ETF - July | -0.53% | Jun 28, 2024 | CPST vs LJUL | |
| iShares Large Cap Max Buffer Mar ETF | -0.90% | Mar 31, 2025 | CPST vs MMAX | |
| Innovator Equity Defined Protection ETF - 1 Yr Apr... | -0.94% | Apr 1, 2025 | CPST vs ZAPR | |
| Innovator Equity Defined Protection ETF - 6 Mo Jan... | -1.01% | Jun 28, 2024 | CPST vs JAJL | |
| Innovator Defined Wealth Shield ETF | -1.15% | Jun 30, 2021 | CPST vs BALT |
Other ETFs from Calamos
Most popular Calamos ETFs on PortfoliosLab, across asset classes.
Often Compared With CPST
What investors most often compare with CPST, based on PortfoliosLab usage data.
| Symbol | Name | Category | Risk / Return Rank | YTD Return | Inception | |
|---|---|---|---|---|---|---|
| SPDR Portfolio S&P 500 High Dividend ETF | S&P 500, Dividend | 34 | 7.04% | Oct 21, 2015 | CPST vs SPYD | |
| Invesco S&P S&P 500 Concentrated QVM ETF | S&P 500 | 76 | 9.82% | Oct 9, 2015 | CPST vs QVMT |
Compare CPST with Any Fund or Stock
Compare CPST with any ETF, mutual fund, or stock using PortfoliosLab's comparison tool.