BKSE vs. BKUI

Last updated Jun 4, 2026

BKSE (BNY Mellon US Small Cap Core Equity ETF) and BKUI (BNY Mellon Ultra Short Income ETF) are both exchange-traded funds - BKSE is a Small Cap Growth Equities fund tracking the Morningstar US Small Cap Index, while BKUI is a Ultrashort Bond fund actively managed by BNY Mellon. BKSE is passively managed, while BKUI is actively managed. Over the past 3 years, BKSE returned 17.40%/yr vs 5.21%/yr for BKUI. At a 0.12 correlation, their price movements are largely independent. BKSE charges 0.04%/yr vs 0.12%/yr for BKUI.

Performance

BKSE vs. BKUI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BNY Mellon US Small Cap Core Equity ETF (BKSE) and BNY Mellon Ultra Short Income ETF (BKUI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BKSE achieves a 13.03% return, which is significantly higher than BKUI's 1.42% return.

BKSE

• 1D: -1.11%
• 1M: 2.60%
• YTD: 13.03%
• 6M: 12.11%
• 1Y: 32.65%
• 3Y*: 17.40%
• 5Y*: 6.89%
• 10Y*: —

BKUI

• 1D: -0.01%
• 1M: 0.33%
• YTD: 1.42%
• 6M: 1.74%
• 1Y: 4.32%
• 3Y*: 5.21%
• 5Y*: —
• 10Y*: —

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

BKSE vs. BKUI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
BKSE BNY Mellon US Small Cap Core Equity ETF	13.03%	13.09%	9.56%	22.37%	-18.44%	1.53%
BKUI BNY Mellon Ultra Short Income ETF	1.42%	4.93%	5.50%	5.75%	-0.08%	-0.26%

Correlation

The correlation between BKSE and BKUI 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 (3Y) Calculated over the trailing 3-year period	0.14
Correlation (All Time) Calculated using the full available price history since Aug 12, 2021	0.12

Return for Risk

BKSE vs. BKUI — Risk / Return Rank

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

BKSE

BKSE Risk / Return Rank: 60
BKSE Sharpe Ratio Rank: 54
BKSE Sortino Ratio Rank: 57
BKSE Omega Ratio Rank: 50
BKSE Calmar Ratio Rank: 70
BKSE Martin Ratio Rank: 66

BKUI

BKUI Risk / Return Rank: 99
BKUI Sharpe Ratio Rank: 99
BKUI Sortino Ratio Rank: 100
BKUI Omega Ratio Rank: 100
BKUI Calmar Ratio Rank: 99
BKUI Martin Ratio Rank: 99

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.

BKSE vs. BKUI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BNY Mellon US Small Cap Core Equity ETF (BKSE) and BNY Mellon Ultra Short Income ETF (BKUI). 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.

	BKSE	BKUI	Difference
Sharpe ratio: Return per unit of total volatility	1.87	10.52	-8.65
Sortino ratio: Return per unit of downside risk	2.71	25.25	-22.53
Omega ratio: Gain probability vs. loss probability	1.32	6.02	-4.71
Calmar ratio: Return relative to maximum drawdown	3.49	32.56	-29.07
Martin ratio: Return relative to average drawdown	12.15	230.94	-218.79
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BKSE vs. BKUI - Sharpe Ratio Comparison

The current BKSE Sharpe Ratio is 1.87, which is lower than the BKUI Sharpe Ratio of 10.52. The chart below compares the historical Sharpe Ratios of BKSE and BKUI, 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

	BKSE	BKUI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.87	10.52	-8.65
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.32	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.73	6.08	-5.35

Drawdowns

BKSE vs. BKUI - Drawdown Comparison

The maximum BKSE drawdown since its inception was -29.08%, which is greater than BKUI's maximum drawdown of -1.72%. Use the drawdown chart below to compare losses from any high point for BKSE and BKUI.

Drawdown Indicators

	BKSE	BKUI	Difference
Max Drawdown Largest peak-to-trough decline	-29.08%	-1.72%	-27.36%
Max Drawdown (1Y) Largest decline over 1 year	-9.40%	-0.13%	-9.27%
Max Drawdown (3Y) Largest decline over 3 years	-26.76%	-0.25%	-26.51%
Max Drawdown (5Y) Largest decline over 5 years	-29.08%	—	—
Current Drawdown Current decline from peak	-1.11%	-0.01%	-1.10%
Average Drawdown Average peak-to-trough decline	-9.06%	-0.27%	-8.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.69%	0.02%	+2.67%

Volatility

BKSE vs. BKUI - Volatility Comparison

BNY Mellon US Small Cap Core Equity ETF (BKSE) has a higher volatility of 4.47% compared to BNY Mellon Ultra Short Income ETF (BKUI) at 0.15%. This indicates that BKSE's price experiences larger fluctuations and is considered to be riskier than BKUI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BKSE	BKUI	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.47%	0.15%	+4.32%
Volatility (6M) Calculated over the trailing 6-month period	11.96%	0.31%	+11.65%
Volatility (1Y) Calculated over the trailing 1-year period	17.63%	0.41%	+17.22%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.43%	0.59%	+20.84%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.30%	0.59%	+21.71%

BKSE vs. BKUI - Expense Ratio Comparison

BKSE has a 0.04% expense ratio, which is lower than BKUI's 0.12% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

BKSE vs. BKUI - Dividend Comparison

BKSE's dividend yield for the trailing twelve months is around 1.16%, less than BKUI's 4.21% yield.

Position	TTM	2025	2024	2023	2022	2021	2020
BKSE BNY Mellon US Small Cap Core Equity ETF	1.16%	1.26%	1.55%	1.38%	1.50%	1.17%	0.82%
BKUI BNY Mellon Ultra Short Income ETF	4.21%	4.48%	5.11%	4.29%	1.82%	0.22%	0.00%

Frequently Asked Questions

Can I hold both BKSE and BKUI in my portfolio?

BKSE and BKUI 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, BKSE or BKUI?

BKSE has higher volatility (4.47%) compared to BKUI (0.15%). In terms of maximum drawdown, BKSE dropped -29.08% vs BKUI's -1.72%.

Which ETF is better, BKSE or BKUI?

On 3-year performance, BKSE leads with 17.40% vs 5.21% for BKUI. On fees, BKSE is cheaper at 0.04% per year. On volatility, BKUI has been the lower-risk option at 0.15%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BKSE or BKUI?

Over the 3-year period, BKSE has performed better with a 17.40% return vs 5.21%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BKSE or BKUI?

BKSE is cheaper with a 0.04% expense ratio, compared with 0.12% for BKUI.

Which ETF pays a higher dividend yield, BKSE or BKUI?

BKUI has the higher dividend yield at 4.21%, compared with 1.16% for BKSE.

What is the main difference between BKSE and BKUI?

BKSE is categorized as Small Cap Growth Equities, while BKUI is Ultrashort Bond. Their fees differ too: 0.04% for BKSE and 0.12% for BKUI.

Which has better risk-adjusted returns?

BKUI currently has the higher Sharpe Ratio (10.52 vs 1.87), 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.