Fidelity U.S. Bond Index Fund (FXNAX) Sortino Ratio: 1.34
FXNAX's Sortino Ratio of 1.34 indicates that for each unit of downside volatility, it generates 1.34 units of excess return. The ratio is calculated using historical daily returns over the past 12 months (as of Apr 3, 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.
FXNAX Sortino Ratio Rank
FXNAX ranks above 34.9% of all investments in our database based on Sortino Ratio over the past 12 months, indicating below-average returns relative to downside risk taken. 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
- Returns may not adequately compensate for downside risk taken
- Consider smaller allocation given below-average risk-adjusted profile
- Explore higher-ranked investments with better downside protection
- Assess whether downside exposure aligns with your portfolio goals
FXNAX Sortino Ratio Market Positioning
The chart shows FXNAX's Sortino Ratio relative to all mutual funds on our platform, with color zones indicating percentile rankings. Higher ratios indicate better downside-adjusted returns.
- Red zone (bottom 25%): 1.15 or lower
- Yellow zone (middle 50%): 1.15 to 2.09
- Green zone (top 25%): 2.09 or higher
- Top 1%: 7.00+
- Median: 1.60 — half of all investments score higher
How it compares to other similar mutual funds
The table compares Fidelity U.S. Bond Index Fund's Sortino Ratio with other mutual funds in the Total Bond Market category across multiple time periods, showing how FXNAX'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 3, 2026.
| Symbol | Name | 1Y Sortino Ratio | 5Y Sortino Ratio | 10Y Sortino Ratio | All Time Sortino Ratio |
|---|---|---|---|---|---|
| FCNVX | Fidelity Conservative Income Bond Institutional Class | 15.77 | |||
| FJTDX | Fidelity Flex Conservative Income Bond Fund | 11.70 | |||
| JSOSX | JPMorgan Strategic Income Opportunities Fund Class I | 10.21 | |||
| VUSFX | Vanguard Ultra-Short-Term Bond Fund Admiral Shares | 7.86 | |||
| VUBFX | Vanguard Ultra-Short-Term Bond Fund Investor Shares | 7.67 | |||
| FYBTX | Fidelity Series Short-Term Credit Fund | 3.55 | |||
| FJRLX | Fidelity Limited Term Bond Fund | 3.35 | |||
| FBNIX | Fidelity Advisor Short-Term Bond Fund Class I | 3.19 | |||
| FADMX | Fidelity Strategic Income Fund | 3.17 | |||
| FIKRX | Fidelity Advisor Limited Term Bond Fund Class Z | 3.16 | |||
| FXNAX | Fidelity U.S. Bond Index Fund | 1.34 |
Historical Sortino Ratio
The chart shows FXNAX'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 FXNAX consistently outperforms (line above benchmark), underperforms (below benchmark), or aligns with the benchmark.
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Explore FXNAX risk-adjusted metrics in detail
Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.