VFISX's Sortino Ratio of 2.85 indicates that for each unit of downside volatility, it generates 2.85 units of excess return. The ratio is calculated using historical daily returns over the past 12 months (as of Jun 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.
VFISX Sortino Ratio Rank
VFISX ranks above 45.6% of all investments in our database based on Sortino Ratio over the past 12 months, indicating moderate downside protection relative to peers. 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 are proportional to downside risk—neither strong nor weak
- Evaluate whether downside volatility aligns with your risk tolerance
- Review higher-ranked alternatives in the same category
- Monitor rank direction to identify improving or deteriorating trends
VFISX Sortino Ratio Market Positioning
The chart shows VFISX'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%): 2.08 or lower
- Yellow zone (middle 50%): 2.08 to 3.61
- Green zone (top 25%): 3.61 or higher
- Top 1%: 9.19+
- Median: 2.99 — half of all investments score higher
How it compares to other similar mutual funds
The table compares Vanguard Short-Term Treasury Fund Investor Shares's Sortino Ratio with other mutual funds in the Government Bonds category across multiple time periods, showing how VFISX'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 Jun 3, 2026.
| Symbol | Name | 1Y Sortino Ratio | 5Y Sortino Ratio | 10Y Sortino Ratio | All Time Sortino Ratio |
|---|---|---|---|---|---|
| FEUGX | Federated Hermes Adjustable Rate Fund | 11.89 | |||
| GUSTX | GMO U.S. Treasury Fund | 11.33 | |||
| VSBIX | Vanguard Short-Term Treasury Index Fund Institutional Shares | 4.51 | |||
| VGIVX | Vanguard Emerging Markets Government Bond Index Fund Institutional Shares | 4.40 | |||
| VGAVX | Vanguard Emerging Markets Government Bond Index Fund Admiral Shares | 4.32 | |||
| VSBSX | Vanguard Short-Term Treasury Index Fund Admiral Shares | 4.32 | |||
| MDSIX | Integrity Short Term Government Fund | 3.94 | |||
| NEFLX | Loomis Sayles Limited Term Government And Agency Fund | 3.30 | |||
| TWUSX | American Century Short-Term Government Fund | 3.29 | |||
| TCSGX | SEI Daily Income Trust Short-Duration Government Fund | 3.26 | |||
| VFISX | Vanguard Short-Term Treasury Fund Investor Shares | 2.85 |
Historical Sortino Ratio
The chart shows VFISX'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 VFISX consistently outperforms (line above benchmark), underperforms (below benchmark), or aligns with the benchmark.
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