MDXBX vs. SMDMX

Last updated Jun 4, 2026

MDXBX (T. Rowe Price Maryland Tax Free Bond Fund) and SMDMX (Fidelity Maryland Municipal Income Fund) are both Municipal Bonds funds. Over the past 10 years, MDXBX returned 2.43%/yr vs 1.97%/yr for SMDMX. Their correlation of 0.84 suggests significant overlap in exposure. MDXBX charges 0.49%/yr vs 0.55%/yr for SMDMX.

Performance

MDXBX vs. SMDMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T. Rowe Price Maryland Tax Free Bond Fund (MDXBX) and Fidelity Maryland Municipal Income Fund (SMDMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MDXBX achieves a 2.19% return, which is significantly higher than SMDMX's 1.05% return. Over the past 10 years, MDXBX has outperformed SMDMX with an annualized return of 2.43%, while SMDMX has yielded a comparatively lower 1.97% annualized return.

MDXBX

• 1D: 0.20%
• 1M: 1.00%
• YTD: 2.19%
• 6M: 2.93%
• 1Y: 9.74%
• 3Y*: 4.99%
• 5Y*: 1.58%
• 10Y*: 2.43%

SMDMX

• 1D: 0.18%
• 1M: 0.77%
• YTD: 1.05%
• 6M: 1.55%
• 1Y: 7.11%
• 3Y*: 4.29%
• 5Y*: 1.00%
• 10Y*: 1.97%

*Multi-year figures are annualized to reflect compound growth (CAGR)

MDXBX vs. SMDMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MDXBX T. Rowe Price Maryland Tax Free Bond Fund	2.19%	4.94%	3.79%	7.18%	-10.37%	3.07%	4.05%	6.89%	0.83%	4.91%
SMDMX Fidelity Maryland Municipal Income Fund	1.05%	5.86%	1.57%	6.21%	-9.56%	1.62%	3.79%	7.17%	0.27%	5.92%

Correlation

The correlation between MDXBX and SMDMX is 0.79, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.79
Correlation (3Y) Calculated over the trailing 3-year period	0.87
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (10Y) Calculated over the trailing 10-year period	0.88
Correlation (All Time) Calculated using the full available price history since Jan 4, 1994	0.84

The correlation between MDXBX and SMDMX shifts across timeframes, from 0.79 (1 year) to 0.90 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

MDXBX vs. SMDMX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

MDXBX

MDXBX Risk / Return Rank: 85
MDXBX Sharpe Ratio Rank: 94
MDXBX Sortino Ratio Rank: 96
MDXBX Omega Ratio Rank: 96
MDXBX Calmar Ratio Rank: 75
MDXBX Martin Ratio Rank: 64

SMDMX

SMDMX Risk / Return Rank: 62
SMDMX Sharpe Ratio Rank: 79
SMDMX Sortino Ratio Rank: 82
SMDMX Omega Ratio Rank: 90
SMDMX Calmar Ratio Rank: 30
SMDMX Martin Ratio Rank: 30

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

MDXBX vs. SMDMX - 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 Fidelity Maryland Municipal Income Fund (SMDMX). 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	SMDMX	Difference
Sharpe ratio: Return per unit of total volatility	3.27	2.59	+0.69
Sortino ratio: Return per unit of downside risk	5.21	3.89	+1.32
Omega ratio: Gain probability vs. loss probability	1.85	1.65	+0.19
Calmar ratio: Return relative to maximum drawdown	3.41	2.06	+1.35
Martin ratio: Return relative to average drawdown	12.61	6.91	+5.70
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MDXBX vs. SMDMX - Sharpe Ratio Comparison

The current MDXBX Sharpe Ratio is 3.27, which is comparable to the SMDMX Sharpe Ratio of 2.59. The chart below compares the historical Sharpe Ratios of MDXBX and SMDMX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	MDXBX	SMDMX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.27	2.59	+0.69
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.37	0.26	+0.11
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.62	0.52	+0.10
Sharpe Ratio (All Time) Calculated using the full available price history	1.19	1.06	+0.13

Drawdowns

MDXBX vs. SMDMX - Drawdown Comparison

The maximum MDXBX drawdown since its inception was -15.38%, which is greater than SMDMX's maximum drawdown of -14.13%. Use the drawdown chart below to compare losses from any high point for MDXBX and SMDMX.

Drawdown Indicators

	MDXBX	SMDMX	Difference
Max Drawdown Largest peak-to-trough decline	-15.38%	-14.13%	-1.25%
Max Drawdown (1Y) Largest decline over 1 year	-2.83%	-3.41%	+0.58%
Max Drawdown (3Y) Largest decline over 3 years	-6.56%	-5.61%	-0.95%
Max Drawdown (5Y) Largest decline over 5 years	-14.97%	-14.13%	-0.84%
Max Drawdown (10Y) Largest decline over 10 years	-14.97%	-14.13%	-0.84%
Current Drawdown Current decline from peak	0.00%	-0.97%	+0.97%
Average Drawdown Average peak-to-trough decline	-2.15%	-1.96%	-0.19%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.76%	1.02%	-0.26%

Volatility

MDXBX vs. SMDMX - Volatility Comparison

T. Rowe Price Maryland Tax Free Bond Fund (MDXBX) and Fidelity Maryland Municipal Income Fund (SMDMX) have volatilities of 1.15% and 1.11%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MDXBX	SMDMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.15%	1.11%	+0.04%
Volatility (6M) Calculated over the trailing 6-month period	2.18%	2.18%	0.00%
Volatility (1Y) Calculated over the trailing 1-year period	2.97%	2.73%	+0.24%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.29%	3.87%	+0.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.91%	3.82%	+0.09%

MDXBX vs. SMDMX - Expense Ratio Comparison

MDXBX has a 0.49% expense ratio, which is lower than SMDMX's 0.55% expense ratio.

Dividends

MDXBX vs. SMDMX - Dividend Comparison

MDXBX's dividend yield for the trailing twelve months is around 4.66%, more than SMDMX's 2.55% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MDXBX T. Rowe Price Maryland Tax Free Bond Fund	4.66%	4.63%	4.11%	3.51%	2.40%	2.30%	2.65%	2.82%	3.17%	3.28%	3.42%	3.61%
SMDMX Fidelity Maryland Municipal Income Fund	2.55%	3.39%	2.76%	2.38%	1.53%	2.04%	2.49%	2.42%	2.30%	3.06%	2.95%	3.78%

Frequently Asked Questions

Can I hold both MDXBX and SMDMX in my portfolio?

MDXBX and SMDMX have a correlation of 0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MDXBX or SMDMX?

MDXBX has higher volatility (1.15%) compared to SMDMX (1.11%). In terms of maximum drawdown, MDXBX dropped -15.38% vs SMDMX's -14.13%.

Which has better risk-adjusted returns?

MDXBX currently has the higher Sharpe Ratio (3.27 vs 2.59), 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.