PRINX vs. MUB
Compare and contrast key facts about T. Rowe Price Summit Municipal Income Fund (PRINX) and iShares National AMT-Free Muni Bond ETF (MUB).
PRINX is managed by T. Rowe Price. It was launched on Oct 28, 1993. 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
PRINX vs. MUB - Performance Comparison
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PRINX vs. MUB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PRINX T. Rowe Price Summit Municipal Income Fund | -0.56% | 3.29% | 2.36% | 6.71% | -11.67% | 3.16% | 4.60% | 7.81% | 0.40% | 5.94% |
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, PRINX achieves a -0.56% return, which is significantly lower than MUB's -0.37% return. Both investments have delivered pretty close results over the past 10 years, with PRINX having a 1.92% annualized return and MUB not far ahead at 1.96%.
PRINX
- 1D
- 0.18%
- 1M
- -2.72%
- YTD
- -0.56%
- 6M
- 1.01%
- 1Y
- 3.49%
- 3Y*
- 2.94%
- 5Y*
- 0.41%
- 10Y*
- 1.92%
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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PRINX vs. MUB - Expense Ratio Comparison
PRINX has a 0.50% expense ratio, which is higher than MUB's 0.07% expense ratio.
Return for Risk
PRINX vs. MUB — Risk / Return Rank
PRINX
MUB
PRINX vs. MUB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Summit Municipal Income Fund (PRINX) 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.
| PRINX | MUB | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.74 | 0.96 | -0.22 |
Sortino ratioReturn per unit of downside risk | 1.01 | 1.25 | -0.24 |
Omega ratioGain probability vs. loss probability | 1.20 | 1.21 | -0.01 |
Calmar ratioReturn relative to maximum drawdown | 0.56 | 1.27 | -0.71 |
Martin ratioReturn relative to average drawdown | 1.62 | 4.07 | -2.45 |
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
| PRINX | MUB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.74 | 0.96 | -0.22 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.10 | 0.20 | -0.10 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.45 | 0.40 | +0.05 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.13 | 0.57 | +0.56 |
Correlation
The correlation between PRINX 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
PRINX vs. MUB - Dividend Comparison
PRINX's dividend yield for the trailing twelve months is around 3.41%, more than MUB's 3.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PRINX T. Rowe Price Summit Municipal Income Fund | 3.41% | 3.63% | 2.78% | 2.46% | 1.96% | 2.14% | 2.64% | 2.87% | 3.12% | 3.19% | 3.32% | 3.42% |
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
PRINX vs. MUB - Drawdown Comparison
The maximum PRINX drawdown since its inception was -16.27%, which is greater than MUB's maximum drawdown of -13.68%. Use the drawdown chart below to compare losses from any high point for PRINX and MUB.
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Drawdown Indicators
| PRINX | MUB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.27% | -13.68% | -2.59% |
Max Drawdown (1Y)Largest decline over 1 year | -5.44% | -3.30% | -2.14% |
Max Drawdown (5Y)Largest decline over 5 years | -16.27% | -11.88% | -4.39% |
Max Drawdown (10Y)Largest decline over 10 years | -16.27% | -13.68% | -2.59% |
Current DrawdownCurrent decline from peak | -2.72% | -2.28% | -0.44% |
Average DrawdownAverage peak-to-trough decline | -2.19% | -2.24% | +0.05% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.87% | 1.03% | +0.84% |
Volatility
PRINX vs. MUB - Volatility Comparison
The current volatility for T. Rowe Price Summit Municipal Income Fund (PRINX) is 1.09%, while iShares National AMT-Free Muni Bond ETF (MUB) has a volatility of 1.53%. This indicates that PRINX 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
| PRINX | MUB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.09% | 1.53% | -0.44% |
Volatility (6M)Calculated over the trailing 6-month period | 1.82% | 2.03% | -0.21% |
Volatility (1Y)Calculated over the trailing 1-year period | 5.52% | 4.14% | +1.38% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.34% | 4.04% | +0.30% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.27% | 4.91% | -0.64% |