IBMN vs. MUB
Compare and contrast key facts about iShares iBonds Dec 2025 Term Muni Bond ETF (IBMN) and iShares National AMT-Free Muni Bond ETF (MUB).
IBMN and MUB are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. IBMN is a passively managed fund by iShares that tracks the performance of the S&P AMT-Free Municipal Series Dec 2025 Index. It was launched on Nov 13, 2018. 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. Both IBMN and MUB are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.
Performance
IBMN vs. MUB - Performance Comparison
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IBMN vs. MUB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
IBMN iShares iBonds Dec 2025 Term Muni Bond ETF | 0.00% | 2.49% | 2.33% | 2.42% | -4.43% | -0.41% | 4.83% | 6.87% | 2.91% |
MUB iShares National AMT-Free Muni Bond ETF | -0.37% | 3.78% | 1.26% | 5.56% | -7.34% | 1.02% | 5.12% | 7.06% | 2.11% |
Returns By Period
IBMN
- 1D
- 0.00%
- 1M
- 0.00%
- YTD
- 0.00%
- 6M
- 0.38%
- 1Y
- 1.62%
- 3Y*
- 2.01%
- 5Y*
- 0.57%
- 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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IBMN vs. MUB - Expense Ratio Comparison
IBMN has a 0.18% expense ratio, which is higher than MUB's 0.07% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Return for Risk
IBMN vs. MUB — Risk / Return Rank
IBMN
MUB
IBMN vs. MUB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2025 Term Muni Bond ETF (IBMN) 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.
| IBMN | MUB | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.06 | 0.96 | +0.10 |
Sortino ratioReturn per unit of downside risk | 1.59 | 1.25 | +0.35 |
Omega ratioGain probability vs. loss probability | 1.40 | 1.21 | +0.19 |
Calmar ratioReturn relative to maximum drawdown | 2.14 | 1.27 | +0.87 |
Martin ratioReturn relative to average drawdown | 22.84 | 4.07 | +18.77 |
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
| IBMN | MUB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.06 | 0.96 | +0.10 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.32 | 0.20 | +0.13 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.40 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.59 | 0.57 | +0.02 |
Correlation
The correlation between IBMN and MUB is 0.52, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.
Dividends
IBMN vs. MUB - Dividend Comparison
IBMN's dividend yield for the trailing twelve months is around 1.68%, less than MUB's 3.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IBMN iShares iBonds Dec 2025 Term Muni Bond ETF | 1.68% | 2.03% | 2.03% | 1.72% | 0.97% | 0.70% | 1.11% | 1.65% | 0.23% | 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
IBMN vs. MUB - Drawdown Comparison
The maximum IBMN drawdown since its inception was -12.40%, smaller than the maximum MUB drawdown of -13.68%. Use the drawdown chart below to compare losses from any high point for IBMN and MUB.
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Drawdown Indicators
| IBMN | MUB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -12.40% | -13.68% | +1.28% |
Max Drawdown (1Y)Largest decline over 1 year | -1.09% | -3.30% | +2.21% |
Max Drawdown (5Y)Largest decline over 5 years | -7.36% | -11.88% | +4.52% |
Max Drawdown (10Y)Largest decline over 10 years | — | -13.68% | — |
Current DrawdownCurrent decline from peak | -0.05% | -2.28% | +2.23% |
Average DrawdownAverage peak-to-trough decline | -1.85% | -2.24% | +0.39% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.10% | 1.03% | -0.93% |
Volatility
IBMN vs. MUB - Volatility Comparison
The current volatility for iShares iBonds Dec 2025 Term Muni Bond ETF (IBMN) is 0.00%, while iShares National AMT-Free Muni Bond ETF (MUB) has a volatility of 1.53%. This indicates that IBMN 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
| IBMN | MUB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.00% | 1.53% | -1.53% |
Volatility (6M)Calculated over the trailing 6-month period | 0.59% | 2.03% | -1.44% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.91% | 4.14% | -2.23% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 1.82% | 4.04% | -2.22% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.94% | 4.91% | -0.97% |