MFSMX vs. ATOIX
Compare and contrast key facts about MFS Maryland Municipal Bond Fund (MFSMX) and abrdn Ultra Short Municipal Income Fund (ATOIX).
MFSMX is managed by MFS. It was launched on Oct 30, 1984. ATOIX is managed by Aberdeen. It was launched on Dec 4, 2002.
Performance
MFSMX vs. ATOIX - Performance Comparison
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MFSMX vs. ATOIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MFSMX MFS Maryland Municipal Bond Fund | -0.98% | 4.70% | 1.68% | 5.96% | -10.48% | 2.55% | 3.98% | 6.65% | 1.29% | 4.40% |
ATOIX abrdn Ultra Short Municipal Income Fund | 0.35% | 3.33% | 3.14% | 3.27% | 0.87% | -0.04% | 0.88% | 1.40% | 1.54% | 2.24% |
Returns By Period
In the year-to-date period, MFSMX achieves a -0.98% return, which is significantly lower than ATOIX's 0.35% return. Both investments have delivered pretty close results over the past 10 years, with MFSMX having a 1.78% annualized return and ATOIX not far behind at 1.73%.
MFSMX
- 1D
- 0.30%
- 1M
- -2.75%
- YTD
- -0.98%
- 6M
- 0.72%
- 1Y
- 3.52%
- 3Y*
- 2.88%
- 5Y*
- 0.47%
- 10Y*
- 1.78%
ATOIX
- 1D
- 0.00%
- 1M
- -0.10%
- YTD
- 0.35%
- 6M
- 1.37%
- 1Y
- 2.95%
- 3Y*
- 3.07%
- 5Y*
- 2.17%
- 10Y*
- 1.73%
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MFSMX vs. ATOIX - Expense Ratio Comparison
MFSMX has a 0.83% expense ratio, which is higher than ATOIX's 0.44% expense ratio.
Return for Risk
MFSMX vs. ATOIX — Risk / Return Rank
MFSMX
ATOIX
MFSMX vs. ATOIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MFS Maryland Municipal Bond Fund (MFSMX) and abrdn Ultra Short Municipal Income Fund (ATOIX). 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.
| MFSMX | ATOIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.84 | 3.51 | -2.66 |
Sortino ratioReturn per unit of downside risk | 1.16 | 18.38 | -17.22 |
Omega ratioGain probability vs. loss probability | 1.22 | 11.59 | -10.37 |
Calmar ratioReturn relative to maximum drawdown | 0.94 | 32.23 | -31.29 |
Martin ratioReturn relative to average drawdown | 2.89 | 93.42 | -90.53 |
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
| MFSMX | ATOIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.84 | 3.51 | -2.66 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.11 | 2.69 | -2.58 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.43 | 2.24 | -1.80 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.16 | 2.45 | -1.29 |
Correlation
The correlation between MFSMX and ATOIX is 0.23, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
MFSMX vs. ATOIX - Dividend Comparison
MFSMX's dividend yield for the trailing twelve months is around 3.25%, more than ATOIX's 2.90% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MFSMX MFS Maryland Municipal Bond Fund | 3.25% | 4.22% | 2.86% | 2.52% | 1.78% | 1.89% | 2.49% | 3.25% | 3.35% | 3.47% | 3.50% | 3.69% |
ATOIX abrdn Ultra Short Municipal Income Fund | 2.90% | 3.27% | 3.09% | 3.02% | 1.07% | 0.06% | 0.88% | 1.39% | 1.42% | 2.20% | 0.61% | 0.52% |
Drawdowns
MFSMX vs. ATOIX - Drawdown Comparison
The maximum MFSMX drawdown since its inception was -15.71%, which is greater than ATOIX's maximum drawdown of -1.46%. Use the drawdown chart below to compare losses from any high point for MFSMX and ATOIX.
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Drawdown Indicators
| MFSMX | ATOIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -15.71% | -1.46% | -14.25% |
Max Drawdown (1Y)Largest decline over 1 year | -5.00% | -0.10% | -4.90% |
Max Drawdown (5Y)Largest decline over 5 years | -15.37% | -0.37% | -15.00% |
Max Drawdown (10Y)Largest decline over 10 years | -15.37% | -0.43% | -14.94% |
Current DrawdownCurrent decline from peak | -2.75% | -0.10% | -2.65% |
Average DrawdownAverage peak-to-trough decline | -2.20% | -0.06% | -2.14% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.63% | 0.03% | +1.60% |
Volatility
MFSMX vs. ATOIX - Volatility Comparison
MFS Maryland Municipal Bond Fund (MFSMX) has a higher volatility of 1.27% compared to abrdn Ultra Short Municipal Income Fund (ATOIX) at 0.10%. This indicates that MFSMX's price experiences larger fluctuations and is considered to be riskier than ATOIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MFSMX | ATOIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.27% | 0.10% | +1.17% |
Volatility (6M)Calculated over the trailing 6-month period | 1.89% | 0.65% | +1.24% |
Volatility (1Y)Calculated over the trailing 1-year period | 5.25% | 0.92% | +4.33% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.26% | 0.81% | +3.45% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.11% | 0.78% | +3.33% |