MFS Active Intermediate Muni Bond ETF (MFSM) Sortino Ratio: 4.33
MFSM's Sortino Ratio of 4.33 indicates that for each unit of downside volatility, it generates 4.33 units of excess return. The ratio is calculated using historical daily returns over the past 12 months (as of Apr 17, 2026).
Unlike other measures, Sortino only focuses on downside volatility (losses), making it particularly useful for investors more concerned about protecting against drawdowns than overall price swings.
MFSM Sortino Ratio Rank
MFSM ranks above 86.8% of all investments in our database based on Sortino Ratio over the past 12 months, demonstrating exceptional downside-adjusted returns. Securities are ranked from 0 (worst) to 100 (best).
What moves the rank
- Strong returns with minimal downside volatility → Higher rank
- Severe or frequent drawdowns → Lower rank
- Upside volatility → No impact (Sortino doesn't penalize upside swings)
What you can do with this information
- Suitable as a core holding given strong downside protection
- Monitor rank changes to detect weakening downside characteristics
- Exceptional risk-adjusted profile supports larger position sizes
- Compare with category peers to assess whether strength is investment-specific or category-wide
MFSM Sortino Ratio Market Positioning
The chart shows MFSM's Sortino Ratio relative to all ETFs on our platform, with color zones indicating percentile rankings. Higher ratios indicate better downside-adjusted returns.
- Red zone (bottom 25%): 1.81 or lower
- Yellow zone (middle 50%): 1.81 to 3.78
- Green zone (top 25%): 3.78 or higher
- Top 1%: 13.15+
- Median: 2.92 — half of all investments score higher
How it compares to other similar ETFs
The table compares MFS Active Intermediate Muni Bond ETF's Sortino Ratio with other ETFs in the Municipal Bonds category across multiple time periods, showing how MFSM's risk-adjusted performance compares to similar funds.
Data shows 1-, 5-, and 10-year periods, plus each fund's all-time average, as of Apr 17, 2026.
| Symbol | Name | 1Y Sortino Ratio | 5Y Sortino Ratio | 10Y Sortino Ratio | All Time Sortino Ratio |
|---|---|---|---|---|---|
| STAX | Macquarie Tax-Free USA Short Term ETF | 7.73 | |||
| MYMF | State Street My2026 Municipal Bond ETF | 7.48 | |||
| SMMU | PIMCO Short Term Municipal Bond Active ETF | 7.03 | |||
| MEAR | iShares Short Maturity Municipal Bond ETF | 6.98 | |||
| MYMG | State Street My2027 Municipal Bond ETF | 6.76 | |||
| FUMB | First Trust Ultra Short Duration Municipal ETF | 6.54 | |||
| CGSM | Capital Group Short Duration Municipal Income ETF | 6.16 | |||
| VSDM | Vanguard Short Duration Tax-Exempt Bond ETF | 6.00 | |||
| SUB | iShares Short-Term National Muni Bond ETF | 5.78 | |||
| IBMP | iShares iBonds Dec 2027 Term Muni Bond ETF | 5.62 | |||
| MFSM | MFS Active Intermediate Muni Bond ETF | 4.33 |
Historical Sortino Ratio
The chart shows MFSM's rolling Sortino ratio over time compared to your chosen benchmark. Rising trends indicate improving returns relative to downside risk, while declining trends may signal deteriorating risk-adjusted performance or increased volatility during market stress. Use multiple timeframes to distinguish short-term fluctuations from long-term patterns.
Identify market cycles by observing when MFSM consistently outperforms (line above benchmark), underperforms (below benchmark), or aligns with the benchmark.
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Explore MFSM risk-adjusted metrics in detail
Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.