IBMS vs. IBMM

Last updated Jun 4, 2026

IBMS (iShares iBonds Dec 2030 Term Muni Bond ETF) and IBMM (iShares iBonds Dec 2024 Term Muni Bond ETF) are both Municipal Bonds funds from iShares - IBMS tracks the S&P AMT-Free Municipal Series Callable-Adjusted Dec 2030 Index while IBMM tracks the S&P AMT-Free Municipal Series Dec 2024 Index. Both are passively managed. Both charge a 0.18% expense ratio.

Performance

IBMS vs. IBMM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares iBonds Dec 2030 Term Muni Bond ETF (IBMS) and iShares iBonds Dec 2024 Term Muni Bond ETF (IBMM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

IBMS

• 1D: 0.02%
• 1M: 0.30%
• YTD: 0.35%
• 6M: 0.87%
• 1Y: 4.50%
• 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)

IBMS vs. IBMM - Yearly Performance Comparison

	2026 (YTD)
IBMS iShares iBonds Dec 2030 Term Muni Bond ETF	-0.72%
IBMM iShares iBonds Dec 2024 Term Muni Bond ETF	0.00%

Return for Risk

IBMS vs. IBMM — Risk / Return Rank

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

IBMS

IBMS Risk / Return Rank: 60
IBMS Sharpe Ratio Rank: 69
IBMS Sortino Ratio Rank: 74
IBMS Omega Ratio Rank: 82
IBMS Calmar Ratio Rank: 41
IBMS Martin Ratio Rank: 36

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.

IBMS vs. IBMM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2030 Term Muni Bond ETF (IBMS) 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.

	IBMS	IBMM	Difference
Sharpe ratio: Return per unit of total volatility	2.23	—	—
Sortino ratio: Return per unit of downside risk	3.30	—	—
Omega ratio: Gain probability vs. loss probability	1.48	—	—
Calmar ratio: Return relative to maximum drawdown	2.00	—	—
Martin ratio: Return relative to average drawdown	5.41	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	IBMS	IBMM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.23	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.42	—	—

Drawdowns

IBMS vs. IBMM - Drawdown Comparison

The maximum IBMS drawdown since its inception was -3.01%, which is greater than IBMM's maximum drawdown of 0.00%. Use the drawdown chart below to compare losses from any high point for IBMS and IBMM.

Drawdown Indicators

	IBMS	IBMM	Difference
Max Drawdown Largest peak-to-trough decline	-3.01%	0.00%	-3.01%
Max Drawdown (1Y) Largest decline over 1 year	-2.25%	—	—
Current Drawdown Current decline from peak	-1.17%	0.00%	-1.17%
Average Drawdown Average peak-to-trough decline	-0.70%	0.00%	-0.70%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.83%	—	—

Volatility

Volatility by Period

	IBMS	IBMM	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.59%	—	—
Volatility (6M) Calculated over the trailing 6-month period	1.43%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	2.03%	0.00%	+2.03%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.07%	0.00%	+3.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.07%	0.00%	+3.07%

IBMS vs. IBMM - Expense Ratio Comparison

Both IBMS and IBMM have an expense ratio of 0.18%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

Dividends

IBMS vs. IBMM - Dividend Comparison

IBMS's dividend yield for the trailing twelve months is around 2.52%, while IBMM has not paid dividends to shareholders.

Position	TTM	2025	2024
IBMM iShares iBonds Dec 2024 Term Muni Bond ETF	0.00%	0.00%	0.00%
IBMS iShares iBonds Dec 2030 Term Muni Bond ETF	2.52%	2.49%	1.38%

Frequently Asked Questions

Which ETF is better, IBMS or IBMM?

Both ETFs have the same 0.18% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IBMS or IBMM?

IBMS and IBMM have the same expense ratio: 0.18% per year.

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

IBMS has the higher dividend yield at 2.52%, compared with 0.00% for IBMM.

What is the main difference between IBMS and IBMM?

IBMS tracks S&P AMT-Free Municipal Series Callable-Adjusted Dec 2030 Index, while IBMM tracks S&P AMT-Free Municipal Series Dec 2024 Index.