INMU vs. MUB
Compare and contrast key facts about BlackRock Intermediate Muni Income Bond ETF (INMU) and iShares National AMT-Free Muni Bond ETF (MUB).
INMU and MUB are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. INMU is an actively managed fund by BlackRock. It was launched on Mar 16, 2021. MUB is a passively managed fund by iShares that tracks the performance of the S&P National AMT-Free Municipal Bond Index. It was launched on Sep 7, 2007.
Performance
INMU vs. MUB - Performance Comparison
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INMU vs. MUB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
INMU BlackRock Intermediate Muni Income Bond ETF | -0.03% | 5.52% | 2.77% | 6.50% | -7.78% | 2.84% |
MUB iShares National AMT-Free Muni Bond ETF | -0.37% | 3.78% | 1.26% | 5.56% | -7.34% | 2.12% |
Returns By Period
In the year-to-date period, INMU achieves a -0.03% return, which is significantly higher than MUB's -0.37% return.
INMU
- 1D
- 0.21%
- 1M
- -2.38%
- YTD
- -0.03%
- 6M
- 1.59%
- 1Y
- 4.63%
- 3Y*
- 3.98%
- 5Y*
- 1.73%
- 10Y*
- —
MUB
- 1D
- 0.19%
- 1M
- -2.28%
- YTD
- -0.37%
- 6M
- 1.28%
- 1Y
- 3.94%
- 3Y*
- 2.53%
- 5Y*
- 0.79%
- 10Y*
- 1.96%
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INMU vs. MUB - Expense Ratio Comparison
INMU has a 0.30% expense ratio, which is higher than MUB's 0.07% expense ratio.
Return for Risk
INMU vs. MUB — Risk / Return Rank
INMU
MUB
INMU vs. MUB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for BlackRock Intermediate Muni Income Bond ETF (INMU) and iShares National AMT-Free Muni Bond ETF (MUB). 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.
| INMU | MUB | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.07 | 0.96 | +0.11 |
Sortino ratioReturn per unit of downside risk | 1.37 | 1.25 | +0.12 |
Omega ratioGain probability vs. loss probability | 1.27 | 1.21 | +0.06 |
Calmar ratioReturn relative to maximum drawdown | 1.51 | 1.27 | +0.24 |
Martin ratioReturn relative to average drawdown | 5.35 | 4.07 | +1.27 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| INMU | MUB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.07 | 0.96 | +0.11 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.48 | 0.20 | +0.29 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.40 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.51 | 0.57 | -0.06 |
Correlation
The correlation between INMU and MUB is 0.73, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
INMU vs. MUB - Dividend Comparison
INMU's dividend yield for the trailing twelve months is around 3.43%, more than MUB's 3.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
INMU BlackRock Intermediate Muni Income Bond ETF | 3.43% | 3.48% | 3.47% | 3.44% | 1.92% | 1.14% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
MUB iShares National AMT-Free Muni Bond ETF | 3.19% | 3.14% | 3.01% | 2.65% | 2.11% | 1.81% | 2.11% | 2.42% | 2.46% | 2.26% | 2.21% | 2.51% |
Drawdowns
INMU vs. MUB - Drawdown Comparison
The maximum INMU drawdown since its inception was -10.67%, smaller than the maximum MUB drawdown of -13.68%. Use the drawdown chart below to compare losses from any high point for INMU and MUB.
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Drawdown Indicators
| INMU | MUB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -10.67% | -13.68% | +3.01% |
Max Drawdown (1Y)Largest decline over 1 year | -3.15% | -3.30% | +0.15% |
Max Drawdown (5Y)Largest decline over 5 years | -10.67% | -11.88% | +1.21% |
Max Drawdown (10Y)Largest decline over 10 years | — | -13.68% | — |
Current DrawdownCurrent decline from peak | -2.38% | -2.28% | -0.10% |
Average DrawdownAverage peak-to-trough decline | -2.86% | -2.24% | -0.62% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.89% | 1.03% | -0.14% |
Volatility
INMU vs. MUB - Volatility Comparison
The current volatility for BlackRock Intermediate Muni Income Bond ETF (INMU) is 1.25%, while iShares National AMT-Free Muni Bond ETF (MUB) has a volatility of 1.53%. This indicates that INMU experiences smaller price fluctuations and is considered to be less risky than MUB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| INMU | MUB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.25% | 1.53% | -0.28% |
Volatility (6M)Calculated over the trailing 6-month period | 1.86% | 2.03% | -0.17% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.34% | 4.14% | +0.20% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.59% | 4.04% | -0.45% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.58% | 4.91% | -1.33% |