PRTAX vs. MIY
PRTAX (T. Rowe Price Tax Free Income Fund) and MIY (BlackRock MuniYield Michigan Quality Fund) are both Municipal Bonds funds. Over the past 10 years, PRTAX returned 2.68%/yr vs 2.55%/yr for MIY. At a 0.28 correlation, their price movements are largely independent. PRTAX charges 0.53%/yr vs 2.25%/yr for MIY.
Performance
PRTAX vs. MIY - Performance Comparison
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Returns By Period
In the year-to-date period, PRTAX achieves a 2.43% return, which is significantly lower than MIY's 6.57% return. Both investments have delivered pretty close results over the past 10 years, with PRTAX having a 2.68% annualized return and MIY not far behind at 2.55%.
PRTAX
- 1D
- 0.00%
- 1M
- 1.94%
- YTD
- 2.43%
- 6M
- 2.92%
- 1Y
- 8.12%
- 3Y*
- 5.81%
- 5Y*
- 2.15%
- 10Y*
- 2.68%
MIY
- 1D
- 0.66%
- 1M
- 1.87%
- YTD
- 6.57%
- 6M
- 8.13%
- 1Y
- 16.95%
- 3Y*
- 9.15%
- 5Y*
- 0.44%
- 10Y*
- 2.55%
PRTAX vs. MIY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PRTAX T. Rowe Price Tax Free Income Fund | 2.43% | 4.45% | 5.18% | 9.82% | -10.81% | 2.85% | 4.87% | 7.25% | 0.70% | 5.17% |
MIY BlackRock MuniYield Michigan Quality Fund | 6.57% | 11.24% | 3.48% | 6.60% | -24.10% | 10.04% | 7.27% | 19.51% | -6.71% | 8.86% |
Correlation
The correlation between PRTAX and MIY is 0.27, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.27 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.45 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.42 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.37 |
Correlation (All Time) Calculated using the full available price history since Oct 27, 1994 | 0.28 |
The correlation between PRTAX and MIY shifts across timeframes, from 0.27 (1 year) to 0.45 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
PRTAX vs. MIY — Risk / Return Rank
PRTAX
MIY
PRTAX vs. MIY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Tax Free Income Fund (PRTAX) and BlackRock MuniYield Michigan Quality Fund (MIY). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| PRTAX | MIY | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.35 | ||
| Sortino ratioReturn per unit of downside risk | +2.28 | ||
| Omega ratioGain probability vs. loss probability | 1.71 | 1.29 | +0.43 |
| Calmar ratioReturn relative to maximum drawdown | 3.00 | 1.69 | +1.31 |
| Martin ratioReturn relative to average drawdown | 10.61 | 5.56 | +5.05 |
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Drawdowns
PRTAX vs. MIY - Drawdown Comparison
The maximum PRTAX drawdown since its inception was -20.97%, smaller than the maximum MIY drawdown of -42.19%. Use the drawdown chart below to compare losses from any high point for PRTAX and MIY.
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Drawdown Indicators
| PRTAX | MIY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -20.97% | -42.19% | +21.22% |
Max Drawdown (1Y)Largest decline over 1 year | -2.83% | -10.08% | +7.25% |
Max Drawdown (3Y)Largest decline over 3 years | -5.67% | -14.72% | +9.05% |
Max Drawdown (5Y)Largest decline over 5 years | -15.68% | -34.59% | +18.91% |
Max Drawdown (10Y)Largest decline over 10 years | -15.68% | -34.59% | +18.91% |
Current DrawdownCurrent decline from peak | 0.00% | -3.04% | +3.04% |
Average DrawdownAverage peak-to-trough decline | -3.23% | -8.31% | +5.08% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.79% | 3.05% | -2.26% |
Volatility
PRTAX vs. MIY - Volatility Comparison
The current volatility for T. Rowe Price Tax Free Income Fund (PRTAX) is 0.83%, while BlackRock MuniYield Michigan Quality Fund (MIY) has a volatility of 2.70%. This indicates that PRTAX experiences smaller price fluctuations and is considered to be less risky than MIY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PRTAX | MIY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.83% | 2.70% | -1.87% |
Volatility (6M)Calculated over the trailing 6-month period | 2.21% | 10.44% | -8.23% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.04% | 11.75% | -8.71% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.40% | 11.68% | -7.28% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.23% | 11.97% | -7.74% |
PRTAX vs. MIY - Expense Ratio Comparison
PRTAX has a 0.53% expense ratio, which is lower than MIY's 2.25% expense ratio.
Dividends
PRTAX vs. MIY - Dividend Comparison
PRTAX's dividend yield for the trailing twelve months is around 3.75%, less than MIY's 5.37% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIY BlackRock MuniYield Michigan Quality Fund | 5.37% | 5.57% | 5.21% | 3.86% | 5.70% | 4.38% | 4.23% | 4.27% | 5.27% | 5.46% | 5.85% | 5.66% |
PRTAX T. Rowe Price Tax Free Income Fund | 3.75% | 4.61% | 5.90% | 5.55% | 2.20% | 2.42% | 2.85% | 3.28% | 3.61% | 3.63% | 3.80% | 3.78% |
Frequently Asked Questions
PRTAX and MIY have a correlation of 0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
MIY has higher volatility (2.70%) compared to PRTAX (0.83%). In terms of maximum drawdown, PRTAX dropped -20.97% vs MIY's -42.19%.
PRTAX currently has the higher Sharpe Ratio (2.80 vs 1.45), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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