BMAY vs. UAUG

Last updated Apr 2, 2026

Compare and contrast key facts about Innovator U.S. Equity Buffer ETF - May (BMAY) and Innovator U.S. Equity Ultra Buffer ETF - August (UAUG).

BMAY and UAUG are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. BMAY is a passively managed fund by Innovator that tracks the performance of the S&P 500 Price Return Index. It was launched on Apr 30, 2020. UAUG is a passively managed fund by Innovator that tracks the performance of the S&P 500. It was launched on Jul 31, 2019. Both BMAY and UAUG are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

BMAY vs. UAUG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Innovator U.S. Equity Buffer ETF - May (BMAY) and Innovator U.S. Equity Ultra Buffer ETF - August (UAUG). The values are adjusted to include any dividend payments, if applicable.

BMAY vs. UAUG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
BMAY Innovator U.S. Equity Buffer ETF - May	0.56%	11.16%	19.06%	16.73%	-12.54%	11.76%	17.82%
UAUG Innovator U.S. Equity Ultra Buffer ETF - August	-1.08%	12.42%	15.51%	17.71%	-10.81%	4.94%	13.33%

Returns By Period

In the year-to-date period, BMAY achieves a 0.56% return, which is significantly higher than UAUG's -1.08% return.

BMAY

• 1D: 0.44%
• 1M: -0.52%
• YTD: 0.56%
• 6M: 2.66%
• 1Y: 13.28%
• 3Y*: 14.24%
• 5Y*: 8.25%
• 10Y*: —

UAUG

• 1D: 0.37%
• 1M: -1.82%
• YTD: -1.08%
• 6M: 0.37%
• 1Y: 13.67%
• 3Y*: 13.45%
• 5Y*: 6.91%
• 10Y*: —

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

BMAY vs. UAUG - Expense Ratio Comparison

Both BMAY and UAUG have an expense ratio of 0.79%.

BMAY

Innovator U.S. Equity Buffer ETF - May

UAUG

Innovator U.S. Equity Ultra Buffer ETF - August

Return for Risk

BMAY vs. UAUG — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

BMAY

BMAY Risk / Return Rank: 64
BMAY Sharpe Ratio Rank: 57
BMAY Sortino Ratio Rank: 60
BMAY Omega Ratio Rank: 82
BMAY Calmar Ratio Rank: 48
BMAY Martin Ratio Rank: 72

UAUG

UAUG Risk / Return Rank: 81
UAUG Sharpe Ratio Rank: 76
UAUG Sortino Ratio Rank: 80
UAUG Omega Ratio Rank: 85
UAUG Calmar Ratio Rank: 77
UAUG Martin Ratio Rank: 87

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

BMAY vs. UAUG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Innovator U.S. Equity Buffer ETF - May (BMAY) and Innovator U.S. Equity Ultra Buffer ETF - August (UAUG). 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.

	BMAY	UAUG	Difference
Sharpe ratio Return per unit of total volatility	1.07	1.46	-0.39
Sortino ratio Return per unit of downside risk	1.62	2.15	-0.53
Omega ratio Gain probability vs. loss probability	1.33	1.35	-0.02
Calmar ratio Return relative to maximum drawdown	1.37	2.23	-0.86
Martin ratio Return relative to average drawdown	8.16	11.11	-2.95
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BMAY vs. UAUG - Sharpe Ratio Comparison

The current BMAY Sharpe Ratio is 1.07, which is comparable to the UAUG Sharpe Ratio of 1.46. The chart below compares the historical Sharpe Ratios of BMAY and UAUG, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	BMAY	UAUG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.07	1.46	-0.39
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.73	0.88	-0.15
Sharpe Ratio (All Time) Calculated using the full available price history	0.93	0.82	+0.11

Correlation

The correlation between BMAY and UAUG is 0.89, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

BMAY vs. UAUG - Dividend Comparison

Neither BMAY nor UAUG has paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019
BMAY Innovator U.S. Equity Buffer ETF - May	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
UAUG Innovator U.S. Equity Ultra Buffer ETF - August	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.83%

Drawdowns

BMAY vs. UAUG - Drawdown Comparison

The maximum BMAY drawdown since its inception was -17.66%, which is greater than UAUG's maximum drawdown of -13.91%. Use the drawdown chart below to compare losses from any high point for BMAY and UAUG.

Drawdown Indicators

	BMAY	UAUG	Difference
Max Drawdown Largest peak-to-trough decline	-17.66%	-13.91%	-3.75%
Max Drawdown (1Y) Largest decline over 1 year	-9.94%	-6.31%	-3.63%
Max Drawdown (5Y) Largest decline over 5 years	-17.66%	-13.91%	-3.75%
Current Drawdown Current decline from peak	-0.77%	-2.16%	+1.39%
Average Drawdown Average peak-to-trough decline	-3.17%	-2.41%	-0.76%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.67%	1.27%	+0.40%

Volatility

BMAY vs. UAUG - Volatility Comparison

Innovator U.S. Equity Buffer ETF - May (BMAY) has a higher volatility of 3.10% compared to Innovator U.S. Equity Ultra Buffer ETF - August (UAUG) at 2.86%. This indicates that BMAY's price experiences larger fluctuations and is considered to be riskier than UAUG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BMAY	UAUG	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.10%	2.86%	+0.24%
Volatility (6M) Calculated over the trailing 6-month period	4.10%	4.32%	-0.22%
Volatility (1Y) Calculated over the trailing 1-year period	12.46%	9.43%	+3.03%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.31%	7.85%	+3.46%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	11.11%	8.80%	+2.31%