BSMU vs. KMAY

Last updated Jun 4, 2026

BSMU (Invesco BulletShares 2030 Municipal Bond ETF) and KMAY (Innovator U.S. Small Cap Power Buffer ETF - May) are both exchange-traded funds - BSMU is a Municipal Bonds fund tracking the Invesco Bulletshares Municipal Bond 2030 Index, while KMAY is a Defined Outcome fund actively managed by Innovator. BSMU is passively managed, while KMAY is actively managed. Over the past year, BSMU returned 5.50% vs 15.29% for KMAY. At a 0.19 correlation, their price movements are largely independent. BSMU charges 0.18%/yr vs 0.79%/yr for KMAY.

Performance

BSMU vs. KMAY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco BulletShares 2030 Municipal Bond ETF (BSMU) and Innovator U.S. Small Cap Power Buffer ETF - May (KMAY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BSMU achieves a 0.56% return, which is significantly lower than KMAY's 4.86% return.

BSMU

• 1D: -0.15%
• 1M: 0.37%
• YTD: 0.56%
• 6M: 0.90%
• 1Y: 5.50%
• 3Y*: 3.02%
• 5Y*: -0.68%
• 10Y*: —

KMAY

• 1D: -0.66%
• 1M: 1.80%
• YTD: 4.86%
• 6M: 5.68%
• 1Y: 15.29%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

BSMU vs. KMAY - Yearly Performance Comparison

	2026 (YTD)	2025
BSMU Invesco BulletShares 2030 Municipal Bond ETF	0.56%	5.15%
KMAY Innovator U.S. Small Cap Power Buffer ETF - May	4.86%	13.83%

Correlation

The correlation between BSMU and KMAY is 0.22, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.22
Correlation (All Time) Calculated using the full available price history since May 2, 2025	0.19

Return for Risk

BSMU vs. KMAY — Risk / Return Rank

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

BSMU

BSMU Risk / Return Rank: 72
BSMU Sharpe Ratio Rank: 80
BSMU Sortino Ratio Rank: 88
BSMU Omega Ratio Rank: 89
BSMU Calmar Ratio Rank: 55
BSMU Martin Ratio Rank: 50

KMAY

KMAY Risk / Return Rank: 87
KMAY Sharpe Ratio Rank: 78
KMAY Sortino Ratio Rank: 86
KMAY Omega Ratio Rank: 85
KMAY Calmar Ratio Rank: 93
KMAY Martin Ratio Rank: 94

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.

BSMU vs. KMAY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco BulletShares 2030 Municipal Bond ETF (BSMU) and Innovator U.S. Small Cap Power Buffer ETF - May (KMAY). 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.

	BSMU	KMAY	Difference
Sharpe ratio: Return per unit of total volatility	2.59	2.51	+0.08
Sortino ratio: Return per unit of downside risk	3.96	3.83	+0.13
Omega ratio: Gain probability vs. loss probability	1.57	1.51	+0.06
Calmar ratio: Return relative to maximum drawdown	2.68	6.46	-3.79
Martin ratio: Return relative to average drawdown	8.28	27.25	-18.97
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BSMU vs. KMAY - Sharpe Ratio Comparison

The current BSMU Sharpe Ratio is 2.59, which is comparable to the KMAY Sharpe Ratio of 2.51. The chart below compares the historical Sharpe Ratios of BSMU and KMAY, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	BSMU	KMAY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.59	2.51	+0.08
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.14	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.06	2.68	-2.61

Drawdowns

BSMU vs. KMAY - Drawdown Comparison

The maximum BSMU drawdown since its inception was -19.48%, which is greater than KMAY's maximum drawdown of -2.38%. Use the drawdown chart below to compare losses from any high point for BSMU and KMAY.

Drawdown Indicators

	BSMU	KMAY	Difference
Max Drawdown Largest peak-to-trough decline	-19.48%	-2.38%	-17.10%
Max Drawdown (1Y) Largest decline over 1 year	-2.06%	-2.38%	+0.32%
Max Drawdown (3Y) Largest decline over 3 years	-5.92%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-19.48%	—	—
Current Drawdown Current decline from peak	-4.83%	-0.69%	-4.14%
Average Drawdown Average peak-to-trough decline	-8.20%	-0.35%	-7.85%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.67%	0.56%	+0.11%

Volatility

BSMU vs. KMAY - Volatility Comparison

The current volatility for Invesco BulletShares 2030 Municipal Bond ETF (BSMU) is 0.79%, while Innovator U.S. Small Cap Power Buffer ETF - May (KMAY) has a volatility of 2.89%. This indicates that BSMU experiences smaller price fluctuations and is considered to be less risky than KMAY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BSMU	KMAY	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.79%	2.89%	-2.10%
Volatility (6M) Calculated over the trailing 6-month period	1.48%	3.99%	-2.51%
Volatility (1Y) Calculated over the trailing 1-year period	2.13%	6.16%	-4.03%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.83%	6.65%	-1.82%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.85%	6.65%	-1.80%

BSMU vs. KMAY - Expense Ratio Comparison

BSMU has a 0.18% expense ratio, which is lower than KMAY's 0.79% expense ratio.

Dividends

BSMU vs. KMAY - Dividend Comparison

BSMU's dividend yield for the trailing twelve months is around 2.80%, while KMAY has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020
BSMU Invesco BulletShares 2030 Municipal Bond ETF	2.80%	2.82%	2.92%	2.66%	2.16%	1.60%	0.28%
KMAY Innovator U.S. Small Cap Power Buffer ETF - May	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both BSMU and KMAY in my portfolio?

BSMU and KMAY have a correlation of 0.22, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BSMU or KMAY?

KMAY has higher volatility (2.89%) compared to BSMU (0.79%). In terms of maximum drawdown, BSMU dropped -19.48% vs KMAY's -2.38%.

Which ETF is better, BSMU or KMAY?

On 1-year performance, KMAY leads with 15.29% vs 5.50% for BSMU. On fees, BSMU is cheaper at 0.18% per year. On volatility, BSMU has been the lower-risk option at 0.79%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BSMU or KMAY?

Over the 1-year period, KMAY has performed better with a 15.29% return vs 5.50%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BSMU or KMAY?

BSMU is cheaper with a 0.18% expense ratio, compared with 0.79% for KMAY.

Which ETF pays a higher dividend yield, BSMU or KMAY?

BSMU has the higher dividend yield at 2.80%, compared with 0.00% for KMAY.

What is the main difference between BSMU and KMAY?

BSMU is categorized as Municipal Bonds, while KMAY is Defined Outcome. They also come from different issuers: Invesco and Innovator. Their fees differ too: 0.18% for BSMU and 0.79% for KMAY.

Which has better risk-adjusted returns?

BSMU currently has the higher Sharpe Ratio (2.59 vs 2.51), 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.