BKMS vs. IBMM

Last updated Jun 4, 2026

BKMS (BNY Mellon Municipal Short Duration ETF) and IBMM (iShares iBonds Dec 2024 Term Muni Bond ETF) are both Municipal Bonds funds. BKMS is actively managed, while IBMM is passively managed. BKMS charges 0.35%/yr vs 0.18%/yr for IBMM.

Performance

BKMS vs. IBMM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BNY Mellon Municipal Short Duration ETF (BKMS) and iShares iBonds Dec 2024 Term Muni Bond ETF (IBMM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

BKMS

• 1D: 0.04%
• 1M: 0.26%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

IBMM

• 1D: 0.00%
• 1M: 0.00%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

BKMS vs. IBMM - Yearly Performance Comparison

	2026 (YTD)
BKMS BNY Mellon Municipal Short Duration ETF	0.16%
IBMM iShares iBonds Dec 2024 Term Muni Bond ETF	0.00%

Return for Risk

BKMS vs. IBMM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BNY Mellon Municipal Short Duration ETF (BKMS) and iShares iBonds Dec 2024 Term Muni Bond ETF (IBMM). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	BKMS	IBMM	Difference
Sharpe Ratio (All Time) Calculated using the full available price history	1.20	—	—

Drawdowns

BKMS vs. IBMM - Drawdown Comparison

The maximum BKMS drawdown since its inception was -0.87%, which is greater than IBMM's maximum drawdown of 0.00%. Use the drawdown chart below to compare losses from any high point for BKMS and IBMM.

Drawdown Indicators

	BKMS	IBMM	Difference
Max Drawdown Largest peak-to-trough decline	-0.87%	0.00%	-0.87%
Current Drawdown Current decline from peak	-0.13%	0.00%	-0.13%
Average Drawdown Average peak-to-trough decline	-0.29%	0.00%	-0.29%

Volatility

Volatility by Period

	BKMS	IBMM	Difference
Volatility (1Y) Calculated over the trailing 1-year period	1.25%	0.00%	+1.25%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.25%	0.00%	+1.25%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.25%	0.00%	+1.25%

BKMS vs. IBMM - Expense Ratio Comparison

BKMS has a 0.35% expense ratio, which is higher than IBMM's 0.18% expense ratio.

Dividends

BKMS vs. IBMM - Dividend Comparison

BKMS's dividend yield for the trailing twelve months is around 1.11%, while IBMM has not paid dividends to shareholders.

Position	TTM
BKMS BNY Mellon Municipal Short Duration ETF	1.11%
IBMM iShares iBonds Dec 2024 Term Muni Bond ETF	0.00%

Frequently Asked Questions

Which ETF is better, BKMS or IBMM?

On fees, IBMM is cheaper at 0.18% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, BKMS or IBMM?

IBMM is cheaper with a 0.18% expense ratio, compared with 0.35% for BKMS.

Which ETF pays a higher dividend yield, BKMS or IBMM?

BKMS has the higher dividend yield at 1.11%, compared with 0.00% for IBMM.

What is the main difference between BKMS and IBMM?

They also come from different issuers: BNY Mellon and iShares. Their fees differ too: 0.35% for BKMS and 0.18% for IBMM.