EBUF vs. CPRA

Last updated Aug 4, 2026

EBUF (Innovator Emerging Markets 10 Buffer ETF - Quarterly) and CPRA (Calamos Russell 2000 Structured Alt Protection ETF - April) are both Defined Outcome funds. Both are actively managed. Over the past year, EBUF returned 14.12% vs 9.06% for CPRA. Their 0.56 correlation means they have sometimes moved together and sometimes differently. EBUF charges 0.89%/yr vs 0.69%/yr for CPRA.

Performance

EBUF vs. CPRA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Innovator Emerging Markets 10 Buffer ETF - Quarterly (EBUF) and Calamos Russell 2000 Structured Alt Protection ETF - April (CPRA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EBUF achieves a 9.01% return, which is significantly higher than CPRA's 4.77% return.

EBUF

• 1D: 0.40%
• 1M: 0.51%
• 6M: 7.31%
• YTD: 9.01%
• 1Y: 14.12%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 11.26%

CPRA

• 1D: 0.18%
• 1M: 0.50%
• 6M: 4.06%
• YTD: 4.77%
• 1Y: 9.06%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 8.85%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
CPRA Calamos Russell 2000 Structured Alt Protection ETF - April	$23.72K	$26.42K	$31.57K
EBUF Innovator Emerging Markets 10 Buffer ETF - Quarterly	$245.01K	$327.93K	$416.98K

EBUF vs. CPRA - Yearly Performance Comparison

	2026 (YTD)	2025
EBUF Innovator Emerging Markets 10 Buffer ETF - Quarterly	9.01%	8.31%
CPRA Calamos Russell 2000 Structured Alt Protection ETF - April	4.77%	6.93%

Correlation

The correlation between EBUF and CPRA is 0.59, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.59
Correlation (All Time) Calculated using the full available price history since Apr 1, 2025	0.56

The correlation between EBUF and CPRA has been stable across timeframes, ranging from 0.56 to 0.59 - a consistent structural relationship.

Return for Risk

EBUF vs. CPRA — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

EBUF

EBUF Risk / Return Rank: 84
EBUF Sharpe Ratio Rank: 77
EBUF Sortino Ratio Rank: 82
EBUF Omega Ratio Rank: 89
EBUF Calmar Ratio Rank: 79
EBUF Martin Ratio Rank: 92

CPRA

CPRA Risk / Return Rank: 98
CPRA Sharpe Ratio Rank: 98
CPRA Sortino Ratio Rank: 98
CPRA Omega Ratio Rank: 98
CPRA Calmar Ratio Rank: 98
CPRA Martin Ratio Rank: 98

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

EBUF vs. CPRA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Innovator Emerging Markets 10 Buffer ETF - Quarterly (EBUF) and Calamos Russell 2000 Structured Alt Protection ETF - April (CPRA). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	EBUF	CPRA	Difference
Sharpe ratio: Return per unit of total volatility	1.88	4.28	-2.39
Sortino ratio: Return per unit of downside risk	2.85	7.61	-4.76
Omega ratio: Gain probability vs. loss probability	1.43	2.05	-0.62
Calmar ratio: Return relative to maximum drawdown	3.04	10.20	-7.17
Martin ratio: Return relative to average drawdown	16.64	58.41	-41.76

EBUF vs. CPRA - Sharpe Ratio Comparison

The current EBUF Sharpe Ratio is 1.88, which is lower than the CPRA Sharpe Ratio of 4.28. The chart below compares the historical Sharpe Ratios of EBUF and CPRA, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

EBUF vs. CPRA - Drawdown Comparison

The maximum EBUF drawdown since its inception was -6.49%, which is greater than CPRA's maximum drawdown of -1.69%. Use the drawdown chart below to compare losses from any high point for EBUF and CPRA.

Drawdown Indicators

	EBUF	CPRA	Difference
Max Drawdown Largest peak-to-trough decline	-6.49%	-1.69%	-4.80%
Max Drawdown (1Y) Largest decline over 1 year	-4.67%	-0.89%	-3.78%
Current Drawdown Current decline from peak	-1.72%	0.00%	-1.72%
Average Drawdown Average peak-to-trough decline	-0.56%	-0.14%	-0.42%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.85%	0.16%	+0.69%

Volatility

EBUF vs. CPRA - Volatility Comparison

Innovator Emerging Markets 10 Buffer ETF - Quarterly (EBUF) has a higher volatility of 4.71% compared to Calamos Russell 2000 Structured Alt Protection ETF - April (CPRA) at 0.47%. This indicates that EBUF's price experiences larger fluctuations and is considered to be riskier than CPRA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EBUF	CPRA	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.71%	0.47%	+4.24%
Volatility (6M) Calculated over the trailing 6-month period	6.81%	1.36%	+5.45%
Volatility (1Y) Calculated over the trailing 1-year period	7.54%	2.13%	+5.41%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.32%	2.71%	+4.61%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.32%	2.71%	+4.61%

EBUF vs. CPRA - Expense Ratio Comparison

EBUF has a 0.89% expense ratio, which is higher than CPRA's 0.69% expense ratio.

Dividends

EBUF vs. CPRA - Dividend Comparison

Neither EBUF nor CPRA has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both EBUF and CPRA in my portfolio?

EBUF and CPRA have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EBUF or CPRA?

EBUF has higher volatility (4.71%) compared to CPRA (0.47%). In terms of maximum drawdown, EBUF dropped -6.49% vs CPRA's -1.69%.

Which ETF is better, EBUF or CPRA?

On 1-year performance, EBUF leads with 14.12% vs 9.06% for CPRA. On fees, CPRA is cheaper at 0.69% per year. On volatility, CPRA has been the lower-risk option at 0.47%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, EBUF or CPRA?

Over the 1-year period, EBUF has performed better with a 14.12% return vs 9.06%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, EBUF or CPRA?

CPRA is cheaper with a 0.69% expense ratio, compared with 0.89% for EBUF.

Which ETF pays a higher dividend yield, EBUF or CPRA?

EBUF and CPRA have nearly identical dividend yields, around 0.00%.

What is the main difference between EBUF and CPRA?

They also come from different issuers: Innovator and Calamos. Their fees differ too: 0.89% for EBUF and 0.69% for CPRA.

Which has better risk-adjusted returns?

CPRA currently has the higher Sharpe Ratio (4.28 vs 1.88), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.