VWIUX vs. MUB
Compare and contrast key facts about Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares (VWIUX) and iShares National AMT-Free Muni Bond ETF (MUB).
VWIUX is managed by Vanguard. It was launched on Feb 12, 2001. 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
VWIUX vs. MUB - Performance Comparison
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VWIUX vs. MUB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VWIUX Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares | -0.69% | 5.99% | 2.34% | 5.90% | -6.83% | 0.81% | 5.23% | 7.10% | 1.34% | 4.65% |
MUB iShares National AMT-Free Muni Bond ETF | -0.37% | 3.78% | 1.26% | 5.56% | -7.34% | 1.02% | 5.12% | 7.06% | 0.93% | 4.72% |
Returns By Period
In the year-to-date period, VWIUX achieves a -0.69% return, which is significantly lower than MUB's -0.37% return. Over the past 10 years, VWIUX has outperformed MUB with an annualized return of 2.36%, while MUB has yielded a comparatively lower 1.96% annualized return.
VWIUX
- 1D
- 0.15%
- 1M
- -2.85%
- YTD
- -0.69%
- 6M
- 0.95%
- 1Y
- 4.63%
- 3Y*
- 3.66%
- 5Y*
- 1.53%
- 10Y*
- 2.36%
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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VWIUX vs. MUB - Expense Ratio Comparison
VWIUX has a 0.09% 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
VWIUX vs. MUB — Risk / Return Rank
VWIUX
MUB
VWIUX vs. MUB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares (VWIUX) 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.
| VWIUX | MUB | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.39 | 0.96 | +0.43 |
Sortino ratioReturn per unit of downside risk | 1.88 | 1.25 | +0.64 |
Omega ratioGain probability vs. loss probability | 1.40 | 1.21 | +0.19 |
Calmar ratioReturn relative to maximum drawdown | 1.48 | 1.27 | +0.21 |
Martin ratioReturn relative to average drawdown | 5.75 | 4.07 | +1.68 |
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
| VWIUX | MUB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.39 | 0.96 | +0.43 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.48 | 0.20 | +0.28 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.69 | 0.40 | +0.29 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.11 | 0.57 | +0.54 |
Correlation
The correlation between VWIUX and MUB is 0.58, 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
VWIUX vs. MUB - Dividend Comparison
VWIUX's dividend yield for the trailing twelve months is around 3.33%, more than MUB's 3.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VWIUX Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares | 3.33% | 4.06% | 3.63% | 2.78% | 2.51% | 1.89% | 2.40% | 2.88% | 2.89% | 2.82% | 2.91% | 2.96% |
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
VWIUX vs. MUB - Drawdown Comparison
The maximum VWIUX drawdown since its inception was -11.38%, smaller than the maximum MUB drawdown of -13.68%. Use the drawdown chart below to compare losses from any high point for VWIUX and MUB.
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Drawdown Indicators
| VWIUX | MUB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -11.38% | -13.68% | +2.30% |
Max Drawdown (1Y)Largest decline over 1 year | -3.89% | -3.30% | -0.59% |
Max Drawdown (5Y)Largest decline over 5 years | -11.38% | -11.88% | +0.50% |
Max Drawdown (10Y)Largest decline over 10 years | -11.38% | -13.68% | +2.30% |
Current DrawdownCurrent decline from peak | -2.85% | -2.28% | -0.57% |
Average DrawdownAverage peak-to-trough decline | -1.44% | -2.24% | +0.80% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.00% | 1.03% | -0.03% |
Volatility
VWIUX vs. MUB - Volatility Comparison
The current volatility for Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares (VWIUX) is 0.96%, while iShares National AMT-Free Muni Bond ETF (MUB) has a volatility of 1.53%. This indicates that VWIUX 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
| VWIUX | MUB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.96% | 1.53% | -0.57% |
Volatility (6M)Calculated over the trailing 6-month period | 1.57% | 2.03% | -0.46% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.93% | 4.14% | -0.21% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.23% | 4.04% | -0.81% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.42% | 4.91% | -1.49% |