GMUN vs. IBMM

Last updated Jun 4, 2026

GMUN (Goldman Sachs Community Municipal Bond ETF) and IBMM (iShares iBonds Dec 2024 Term Muni Bond ETF) are both Municipal Bonds funds - GMUN tracks the Bloomberg Goldman Sachs Community Municipal Index while IBMM tracks the S&P AMT-Free Municipal Series Dec 2024 Index. Both are passively managed. GMUN charges 0.15%/yr vs 0.18%/yr for IBMM.

Performance

GMUN vs. IBMM - Performance Comparison

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

Returns By Period

GMUN

• 1D: 0.00%
• 1M: -0.75%
• YTD: -0.34%
• 6M: 0.04%
• 1Y: 4.92%
• 3Y*: 3.06%
• 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)

GMUN vs. IBMM - Yearly Performance Comparison

	2026 (YTD)
GMUN Goldman Sachs Community Municipal Bond ETF	-1.58%
IBMM iShares iBonds Dec 2024 Term Muni Bond ETF	0.00%

Return for Risk

GMUN vs. IBMM — Risk / Return Rank

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

GMUN

GMUN Risk / Return Rank: 55
GMUN Sharpe Ratio Rank: 61
GMUN Sortino Ratio Rank: 60
GMUN Omega Ratio Rank: 81
GMUN Calmar Ratio Rank: 36
GMUN Martin Ratio Rank: 35

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.

GMUN vs. IBMM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Goldman Sachs Community Municipal Bond ETF (GMUN) 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.

	GMUN	IBMM	Difference
Sharpe ratio: Return per unit of total volatility	2.04	—	—
Sortino ratio: Return per unit of downside risk	2.79	—	—
Omega ratio: Gain probability vs. loss probability	1.49	—	—
Calmar ratio: Return relative to maximum drawdown	1.75	—	—
Martin ratio: Return relative to average drawdown	5.36	—	—
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

	GMUN	IBMM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.04	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.99	—	—

Drawdowns

GMUN vs. IBMM - Drawdown Comparison

The maximum GMUN drawdown since its inception was -4.35%, which is greater than IBMM's maximum drawdown of 0.00%. Use the drawdown chart below to compare losses from any high point for GMUN and IBMM.

Drawdown Indicators

	GMUN	IBMM	Difference
Max Drawdown Largest peak-to-trough decline	-4.35%	0.00%	-4.35%
Max Drawdown (1Y) Largest decline over 1 year	-2.83%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-3.37%	—	—
Current Drawdown Current decline from peak	-2.29%	0.00%	-2.29%
Average Drawdown Average peak-to-trough decline	-1.02%	0.00%	-1.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.92%	—	—

Volatility

Volatility by Period

	GMUN	IBMM	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.09%	—	—
Volatility (6M) Calculated over the trailing 6-month period	2.00%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	2.42%	0.00%	+2.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.96%	0.00%	+2.96%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.96%	0.00%	+2.96%

GMUN vs. IBMM - Expense Ratio Comparison

GMUN has a 0.15% expense ratio, which is lower than IBMM's 0.18% 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

GMUN vs. IBMM - Dividend Comparison

GMUN's dividend yield for the trailing twelve months is around 3.12%, while IBMM has not paid dividends to shareholders.

Position	TTM	2025	2024	2023
GMUN Goldman Sachs Community Municipal Bond ETF	3.12%	2.94%	3.22%	2.20%
IBMM iShares iBonds Dec 2024 Term Muni Bond ETF	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Which ETF is better, GMUN or IBMM?

On fees, GMUN is cheaper at 0.15% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, GMUN or IBMM?

GMUN is cheaper with a 0.15% expense ratio, compared with 0.18% for IBMM.

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

GMUN has the higher dividend yield at 3.12%, compared with 0.00% for IBMM.

What is the main difference between GMUN and IBMM?

GMUN tracks Bloomberg Goldman Sachs Community Municipal Index, while IBMM tracks S&P AMT-Free Municipal Series Dec 2024 Index. They also come from different issuers: Goldman Sachs and iShares. Their fees differ too: 0.15% for GMUN and 0.18% for IBMM.