FMAY vs. KAPR

Last updated Aug 2, 2026

FMAY (FT Cboe Vest U.S. Equity Buffer ETF - May) and KAPR (Innovator Russell 2000 Power Buffer ETF - April) are both Defined Outcome funds - FMAY tracks the Cboe S&P 500 Buffer Protect Index May Series while KAPR tracks the Russell 2000 Index. Both are passively managed. Over the past 5 years, FMAY returned 9.00%/yr vs 7.81%/yr for KAPR. Their 0.73 correlation means they have sometimes moved together and sometimes differently. FMAY charges 0.85%/yr vs 0.79%/yr for KAPR.

Performance

FMAY vs. KAPR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in FT Cboe Vest U.S. Equity Buffer ETF - May (FMAY) and Innovator Russell 2000 Power Buffer ETF - April (KAPR). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FMAY achieves a 5.43% return, which is significantly lower than KAPR's 13.09% return.

FMAY

• 1D: 0.48%
• 1M: 0.39%
• 6M: 4.78%
• YTD: 5.43%
• 1Y: 12.00%
• 3Y*: 12.48%
• 5Y*: 9.00%
• 10Y*: —
• ALL TIME*: 10.05%

KAPR

• 1D: -0.03%
• 1M: 0.08%
• 6M: 11.66%
• YTD: 13.09%
• 1Y: 22.54%
• 3Y*: 12.02%
• 5Y*: 7.81%
• 10Y*: —
• ALL TIME*: 9.28%

*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)
FMAY FT Cboe Vest U.S. Equity Buffer ETF - May	$1.41M	$1.35M	$5.09M
KAPR Innovator Russell 2000 Power Buffer ETF - April	$147.78K	$281.73K	$305.41K

FMAY vs. KAPR - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
FMAY FT Cboe Vest U.S. Equity Buffer ETF - May	5.43%	12.69%	14.45%	17.83%	-8.08%	11.00%	10.80%
KAPR Innovator Russell 2000 Power Buffer ETF - April	13.09%	7.42%	12.10%	15.36%	-8.14%	2.48%	12.34%

Correlation

The correlation between FMAY and KAPR is 0.73, 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.	0.73
Correlation (3Y) Balances recent behavior with more history.	0.70
Correlation (5Y) Shows whether the relationship held over a longer period.	0.76
Correlation (All Time) Calculated using the full available price history since May 18, 2020	0.73

The correlation between FMAY and KAPR has been stable across timeframes, ranging from 0.70 to 0.76 - a consistent structural relationship.

FMAY vs. KAPR - Sectors Allocation Comparison

Sectors	FMAY	KAPR
Technology	37.9%	14.5%
Financial Services	11.7%	17.6%
Communication Services	10.0%	2.2%
Consumer Cyclical	9.6%	9.2%
Healthcare	9.1%	20.3%
Industrials	8.4%	14.1%
Consumer Defensive	4.6%	2.6%
Energy	3.0%	5.5%
Utilities	2.3%	2.8%
Real Estate	1.9%	6.7%
Basic Materials	1.7%	4.4%

Return for Risk

FMAY vs. KAPR — Risk / Return Rank

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

FMAY

FMAY Risk / Return Rank: 77
FMAY Sharpe Ratio Rank: 71
FMAY Sortino Ratio Rank: 72
FMAY Omega Ratio Rank: 79
FMAY Calmar Ratio Rank: 75
FMAY Martin Ratio Rank: 88

KAPR

KAPR Risk / Return Rank: 97
KAPR Sharpe Ratio Rank: 97
KAPR Sortino Ratio Rank: 97
KAPR Omega Ratio Rank: 97
KAPR Calmar Ratio Rank: 97
KAPR 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.

FMAY vs. KAPR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for FT Cboe Vest U.S. Equity Buffer ETF - May (FMAY) and Innovator Russell 2000 Power Buffer ETF - April (KAPR). 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.

	FMAY	KAPR	Difference
Sharpe ratio: Return per unit of total volatility	1.63	3.28	-1.65
Sortino ratio: Return per unit of downside risk	2.33	5.14	-2.80
Omega ratio: Gain probability vs. loss probability	1.33	1.70	-0.37
Calmar ratio: Return relative to maximum drawdown	2.65	8.50	-5.86
Martin ratio: Return relative to average drawdown	13.18	42.63	-29.45

FMAY vs. KAPR - Sharpe Ratio Comparison

The current FMAY Sharpe Ratio is 1.63, which is lower than the KAPR Sharpe Ratio of 3.28. The chart below compares the historical Sharpe Ratios of FMAY and KAPR, 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

FMAY vs. KAPR - Drawdown Comparison

The maximum FMAY drawdown since its inception was -13.60%, smaller than the maximum KAPR drawdown of -16.91%. Use the drawdown chart below to compare losses from any high point for FMAY and KAPR.

Drawdown Indicators

	FMAY	KAPR	Difference
Max Drawdown Largest peak-to-trough decline	-13.60%	-16.91%	+3.31%
Max Drawdown (1Y) Largest decline over 1 year	-4.22%	-2.52%	-1.70%
Max Drawdown (3Y) Largest decline over 3 years	-13.12%	-16.84%	+3.72%
Max Drawdown (5Y) Largest decline over 5 years	-13.60%	-16.91%	+3.31%
Current Drawdown Current decline from peak	-0.48%	-0.36%	-0.12%
Average Drawdown Average peak-to-trough decline	-1.98%	-3.83%	+1.85%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.85%	0.50%	+0.35%

Volatility

FMAY vs. KAPR - Volatility Comparison

FT Cboe Vest U.S. Equity Buffer ETF - May (FMAY) has a higher volatility of 2.40% compared to Innovator Russell 2000 Power Buffer ETF - April (KAPR) at 1.52%. This indicates that FMAY's price experiences larger fluctuations and is considered to be riskier than KAPR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FMAY	KAPR	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.40%	1.52%	+0.88%
Volatility (6M) Calculated over the trailing 6-month period	5.85%	4.77%	+1.08%
Volatility (1Y) Calculated over the trailing 1-year period	6.86%	6.53%	+0.33%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	10.68%	11.69%	-1.01%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	10.14%	11.56%	-1.42%

FMAY vs. KAPR - Expense Ratio Comparison

FMAY has a 0.85% expense ratio, which is higher than KAPR's 0.79% expense ratio.

Dividends

FMAY vs. KAPR - Dividend Comparison

Neither FMAY nor KAPR has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both FMAY and KAPR in my portfolio?

FMAY and KAPR have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FMAY or KAPR?

FMAY has higher volatility (2.40%) compared to KAPR (1.52%). In terms of maximum drawdown, FMAY dropped -13.60% vs KAPR's -16.91%.

Which ETF is better, FMAY or KAPR?

On 5-year performance, FMAY leads with 9.00% vs 7.81% for KAPR. On fees, KAPR is cheaper at 0.79% per year. On volatility, KAPR has been the lower-risk option at 1.52%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, FMAY or KAPR?

Over the 5-year period, FMAY has performed better with a 9.00% return vs 7.81%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, FMAY or KAPR?

KAPR is cheaper with a 0.79% expense ratio, compared with 0.85% for FMAY.

Which ETF pays a higher dividend yield, FMAY or KAPR?

FMAY and KAPR have nearly identical dividend yields, around 0.00%.

What is the main difference between FMAY and KAPR?

FMAY tracks Cboe S&P 500 Buffer Protect Index May Series, while KAPR tracks Russell 2000 Index. They also come from different issuers: First Trust and Innovator. Their fees differ too: 0.85% for FMAY and 0.79% for KAPR.

Which has better risk-adjusted returns?

KAPR currently has the higher Sharpe Ratio (3.28 vs 1.63), 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.