IBMM vs. IWM

Last updated Jun 5, 2026

IBMM (iShares iBonds Dec 2024 Term Muni Bond ETF) and IWM (iShares Russell 2000 ETF) are both exchange-traded funds - IBMM is a Municipal Bonds fund tracking the S&P AMT-Free Municipal Series Dec 2024 Index, while IWM is a Small Cap Blend Equities fund tracking the Russell 2000 Index. Both are passively managed. IBMM charges 0.18%/yr vs 0.19%/yr for IWM.

Performance

IBMM vs. IWM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares iBonds Dec 2024 Term Muni Bond ETF (IBMM) and iShares Russell 2000 ETF (IWM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

IBMM

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

IWM

• 1D: 1.51%
• 1M: 3.34%
• YTD: 18.84%
• 6M: 16.56%
• 1Y: 41.60%
• 3Y*: 19.00%
• 5Y*: 6.43%
• 10Y*: 10.97%

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

IBMM vs. IWM - Yearly Performance Comparison

	2026 (YTD)
IBMM iShares iBonds Dec 2024 Term Muni Bond ETF	0.00%
IWM iShares Russell 2000 ETF	10.38%

Return for Risk

IBMM vs. IWM — Risk / Return Rank

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

IWM

IWM Risk / Return Rank: 68
IWM Sharpe Ratio Rank: 67
IWM Sortino Ratio Rank: 66
IWM Omega Ratio Rank: 59
IWM Calmar Ratio Rank: 76
IWM Martin Ratio Rank: 73

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.

IBMM vs. IWM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2024 Term Muni Bond ETF (IBMM) and iShares Russell 2000 ETF (IWM). 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

	IBMM	IWM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	2.18	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.29	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.48	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.37	—

Drawdowns

IBMM vs. IWM - Drawdown Comparison

The maximum IBMM drawdown since its inception was 0.00%, smaller than the maximum IWM drawdown of -59.05%. Use the drawdown chart below to compare losses from any high point for IBMM and IWM.

Drawdown Indicators

	IBMM	IWM	Difference
Max Drawdown Largest peak-to-trough decline	0.00%	-59.05%	+59.05%
Max Drawdown (1Y) Largest decline over 1 year	—	-11.03%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-27.50%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-31.91%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-41.13%	—
Current Drawdown Current decline from peak	0.00%	-0.01%	+0.01%
Average Drawdown Average peak-to-trough decline	0.00%	-10.77%	+10.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	3.10%	—

Volatility

Volatility by Period

	IBMM	IWM	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	5.70%	—
Volatility (6M) Calculated over the trailing 6-month period	—	13.60%	—
Volatility (1Y) Calculated over the trailing 1-year period	0.00%	19.19%	-19.19%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.00%	22.53%	-22.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.00%	23.04%	-23.04%

IBMM vs. IWM - Expense Ratio Comparison

IBMM has a 0.18% expense ratio, which is lower than IWM's 0.19% 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

IBMM vs. IWM - Dividend Comparison

IBMM has not paid dividends to shareholders, while IWM's dividend yield for the trailing twelve months is around 0.87%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IBMM iShares iBonds Dec 2024 Term Muni Bond ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
IWM iShares Russell 2000 ETF	0.87%	1.04%	1.15%	1.35%	1.48%	0.94%	1.04%	1.26%	1.40%	1.26%	1.38%	1.54%

Frequently Asked Questions

Which ETF is better, IBMM or IWM?

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, IBMM or IWM?

IBMM is cheaper with a 0.18% expense ratio, compared with 0.19% for IWM.

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

IWM has the higher dividend yield at 0.87%, compared with 0.00% for IBMM.

What is the main difference between IBMM and IWM?

IBMM is categorized as Municipal Bonds, while IWM is Small Cap Blend Equities. IBMM tracks S&P AMT-Free Municipal Series Dec 2024 Index, while IWM tracks Russell 2000 Index. Their fees differ too: 0.18% for IBMM and 0.19% for IWM.