MDXBX vs. MUB
Compare and contrast key facts about T. Rowe Price Maryland Tax Free Bond Fund (MDXBX) and iShares National AMT-Free Muni Bond ETF (MUB).
MDXBX is managed by T. Rowe Price. It was launched on Mar 30, 1987. 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
MDXBX vs. MUB - Performance Comparison
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MDXBX vs. MUB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MDXBX T. Rowe Price Maryland Tax Free Bond Fund | 0.25% | 6.50% | 2.93% | 7.18% | -10.37% | 3.07% | 4.05% | 6.89% | 0.83% | 4.91% |
MUB iShares National AMT-Free Muni Bond ETF | 0.04% | 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, MDXBX achieves a 0.25% return, which is significantly higher than MUB's 0.04% return. Over the past 10 years, MDXBX has outperformed MUB with an annualized return of 2.43%, while MUB has yielded a comparatively lower 2.00% annualized return.
MDXBX
- 1D
- 0.30%
- 1M
- -2.06%
- YTD
- 0.25%
- 6M
- 2.88%
- 1Y
- 7.06%
- 3Y*
- 4.54%
- 5Y*
- 1.66%
- 10Y*
- 2.43%
MUB
- 1D
- 0.42%
- 1M
- -1.55%
- YTD
- 0.04%
- 6M
- 1.52%
- 1Y
- 4.03%
- 3Y*
- 2.67%
- 5Y*
- 0.88%
- 10Y*
- 2.00%
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MDXBX vs. MUB - Expense Ratio Comparison
MDXBX has a 0.49% expense ratio, which is higher than MUB's 0.07% expense ratio.
Return for Risk
MDXBX vs. MUB — Risk / Return Rank
MDXBX
MUB
MDXBX vs. MUB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Maryland Tax Free Bond Fund (MDXBX) 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.
| MDXBX | MUB | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.41 | 0.98 | +0.43 |
Sortino ratioReturn per unit of downside risk | 1.89 | 1.27 | +0.62 |
Omega ratioGain probability vs. loss probability | 1.38 | 1.21 | +0.17 |
Calmar ratioReturn relative to maximum drawdown | 1.58 | 1.33 | +0.25 |
Martin ratioReturn relative to average drawdown | 5.59 | 4.22 | +1.37 |
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
| MDXBX | MUB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.41 | 0.98 | +0.43 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.39 | 0.22 | +0.17 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.63 | 0.41 | +0.22 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.18 | 0.58 | +0.60 |
Correlation
The correlation between MDXBX and MUB is 0.57, 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
MDXBX vs. MUB - Dividend Comparison
MDXBX's dividend yield for the trailing twelve months is around 6.47%, more than MUB's 3.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MDXBX T. Rowe Price Maryland Tax Free Bond Fund | 6.47% | 6.08% | 3.28% | 3.51% | 2.40% | 2.30% | 2.65% | 2.82% | 3.17% | 3.28% | 3.42% | 3.61% |
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
MDXBX vs. MUB - Drawdown Comparison
The maximum MDXBX drawdown since its inception was -15.38%, which is greater than MUB's maximum drawdown of -13.68%. Use the drawdown chart below to compare losses from any high point for MDXBX and MUB.
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Drawdown Indicators
| MDXBX | MUB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -15.38% | -13.68% | -1.70% |
Max Drawdown (1Y)Largest decline over 1 year | -5.07% | -3.30% | -1.77% |
Max Drawdown (5Y)Largest decline over 5 years | -14.97% | -11.88% | -3.09% |
Max Drawdown (10Y)Largest decline over 10 years | -14.97% | -13.68% | -1.29% |
Current DrawdownCurrent decline from peak | -2.34% | -1.87% | -0.47% |
Average DrawdownAverage peak-to-trough decline | -2.15% | -2.24% | +0.09% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.43% | 1.04% | +0.39% |
Volatility
MDXBX vs. MUB - Volatility Comparison
The current volatility for T. Rowe Price Maryland Tax Free Bond Fund (MDXBX) is 1.22%, while iShares National AMT-Free Muni Bond ETF (MUB) has a volatility of 1.56%. This indicates that MDXBX 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
| MDXBX | MUB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.22% | 1.56% | -0.34% |
Volatility (6M)Calculated over the trailing 6-month period | 1.94% | 2.07% | -0.13% |
Volatility (1Y)Calculated over the trailing 1-year period | 5.30% | 4.15% | +1.15% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.27% | 4.04% | +0.23% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.90% | 4.91% | -1.01% |