Vanguard Short-Term Treasury Fund Admiral Shares (VFIRX) Sharpe Ratio: 1.82

VFIRX's Sharpe Ratio of 1.82 indicates that for each unit of volatility, it generates 1.82 units of excess return above the risk-free rate. The ratio is calculated using historical daily returns over the past 12 months (as of Jun 18, 2026).

Sharpe uses total volatility (standard deviation) which includes both upside and downside price movements, making it useful for comparing risk-adjusted returns across different assets. For how to read this number and when it can mislead, see Sharpe Ratio Explained.

VFIRX Sharpe Ratio Rank

Average

VFIRX ranks above 43.1% of all investments in our database based on Sharpe Ratio over the past 12 months, showing balanced returns relative to total risk taken. Securities are ranked from 0 (worst) to 100 (best).

What moves the rank

Strong returns with low total volatility → Higher rank
High volatility (both upside and downside) → Lower rank
Consistent returns → Higher rank than volatile returns of same magnitude
Sharp drawdowns increase volatility → Lower rank

What you can do with this information

Returns are proportional to volatility—neither strong nor weak
Evaluate whether the volatility profile aligns with your risk tolerance
Review higher-ranked alternatives in the same category
Monitor rank direction to identify improving or deteriorating trends

VFIRX Sharpe Ratio Market Positioning

The chart shows VFIRX's Sharpe Ratio relative to all mutual funds on our platform, with color zones indicating percentile rankings. Higher ratios indicate better risk-adjusted returns.

Red zone (bottom 25%): 1.35 or lower
Yellow zone (middle 50%): 1.35 to 2.28
Green zone (top 25%): 2.28 or higher
Top 1%: 4.21+
Median: 1.90 — half of all investments score higher

How it compares to other similar mutual funds

The table compares Vanguard Short-Term Treasury Fund Admiral Shares's Sharpe Ratio with other mutual funds in the Government Bonds category across multiple time periods, showing how VFIRX'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 18, 2026.

Symbol	Name	1Y Sharpe Ratio
FEUGX	Federated Hermes Adjustable Rate Fund	3.82
GUSTX	GMO U.S. Treasury Fund	3.34
VSBIX	Vanguard Short-Term Treasury Index Fund Institutional Shares	2.80
VSBSX	Vanguard Short-Term Treasury Index Fund Admiral Shares	2.75
VGIVX	Vanguard Emerging Markets Government Bond Index Fund Institutional Shares	2.72
VGAVX	Vanguard Emerging Markets Government Bond Index Fund Admiral Shares	2.68
MDSIX	Integrity Short Term Government Fund	2.57
DFFGX	DFA Short-Term Government Portfolio	2.31
VFFIX	Victory INCORE Fund for Income Class I	2.14
RFBAX	Davis Government Bond Fund	2.00
VFIRX	Vanguard Short-Term Treasury Fund Admiral Shares	1.82

Benchmark Against

Benchmark

S&P 500 Index

Lookback Period

How to choose period

Historical Sharpe Ratio

The chart shows VFIRX's rolling Sharpe ratio over time compared to your chosen benchmark. Rising trends indicate improving returns relative to total volatility, while declining trends may signal deteriorating risk-adjusted performance or increased volatility. Use multiple timeframes to distinguish short-term fluctuations from long-term patterns.

Identify market cycles by observing when VFIRX consistently outperforms (line above benchmark), underperforms (below benchmark), or aligns with the benchmark.

Loading charts...

Sharpe Ratio Calculator

How does VFIRX fit in your portfolio?

Add your other holdings to see your portfolio's Sharpe Ratio and find out.

Analyze Your Portfolio