CPST vs IVV
Calamos S&P 500 Structured Alt Protection ETF - September vs iShares Core S&P 500 ETF
Quick Verdict
IVV has a lower expense ratio. IVV delivered stronger 1-year returns. IVV offers more diversification with 505 holdings.
Side-by-Side Comparison
| Metric | CPST | IVV | Winner |
|---|---|---|---|
| Expense Ratio | 0.69% | 0.03% | |
| AUM | $32M | $865.2B | |
| Dividend Yield | 0.00% | 1.09% | |
| Holdings | 5 | 508 | |
| YTD Return | +3.62% | +13.72% | |
| 1Y Return | +5.94% | +21.64% | |
| 3Y Return (annualized) | - | +21.55% | |
| 5Y Return (annualized) | - | +13.27% | |
| Volatility (annualized) | 2.5% | 15.1% | |
| Max Drawdown | -3.8% | -56.5% | |
| Fund Family | Calamos Investments | iShares by BlackRock (US) | |
| Category | Alternative | Equity | |
| Inception | Sep 3, 2024 | May 15, 2000 |
CPST vs IVV Performance
Calamos S&P 500 Structured Alt Protection ETF - September (CPST) is a ETF from Calamos Investments and iShares Core S&P 500 ETF (IVV) is a ETF from iShares by BlackRock (US). Over the past year CPST returned +5.94% while IVV returned +21.64%. Year to date, CPST is up 3.62% versus a gain of 13.72% for IVV.
Risk: Volatility and Drawdowns
IVV has been the more volatile fund, with annualized monthly volatility of 15.1% compared with 2.5% for CPST. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -3.8% for CPST and -56.5% for IVV. Drawdown depth is worth weighing if you expect to sell during market stress rather than ride it out.
The two funds' monthly returns correlate at 0.91. They move almost in lockstep, so holding both mostly duplicates the same exposure.
Fees and Cost Over Time
CPST charges 0.69% per year while IVV charges 0.03%. On a $10,000 position that is $69 vs $3 annually, a gap of $66 per year that compounds over a long holding period. On income, CPST currently yields 0.00% against 1.09% for IVV.
Holdings Overlap
CPST and IVV share 0 holdings out of 506 unique holdings combined, representing a 0.0% weight overlap.
Moderate overlap means holding both could provide meaningful diversification benefits.
Frequently Asked Questions
Which is cheaper, CPST or IVV?
CPST has an expense ratio of 0.69% while IVV charges 0.03%. IVV is the cheaper option. On a $10,000 investment, that is $66 per year of difference.
Which performed better, CPST or IVV?
Over the past year CPST returned +5.94% vs +21.64% for IVV, so IVV leads on 1-year performance. Over the longest common window we track (2 years), CPST annualized +6.61% vs +7.04% for IVV. Past performance does not guarantee future results.
Which is riskier, CPST or IVV?
IVV has been the more volatile fund at 15.1% annualized versus 2.5% for CPST. Worst drawdown: CPST -3.8% vs IVV -56.5%.
Should I hold both CPST and IVV?
CPST and IVV have a monthly-return correlation of 0.91, so they move almost identically. Holding both adds little diversification - most investors pick one, usually on fees or the specific index tracked.
What is the holdings overlap between CPST and IVV?
CPST and IVV share 0 common holdings with a 0.0% weight overlap. Combined, they hold 506 unique securities.
Which pays a higher dividend, CPST or IVV?
CPST yields 0.00% while IVV yields 1.09%, so IVV currently pays the higher dividend yield.
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