VFIUX vs. VFIRX

Last updated Jun 4, 2026

VFIUX (Vanguard Intermediate-Term Treasury Fund Admiral Shares) and VFIRX (Vanguard Short-Term Treasury Fund Admiral Shares) are both Government Bonds funds from Vanguard. Over the past 10 years, VFIUX returned 1.36%/yr vs 1.71%/yr for VFIRX. Their correlation of 0.84 suggests significant overlap in exposure. Both charge a 0.10% expense ratio.

Performance

VFIUX vs. VFIRX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Intermediate-Term Treasury Fund Admiral Shares (VFIUX) and Vanguard Short-Term Treasury Fund Admiral Shares (VFIRX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VFIUX achieves a -0.36% return, which is significantly lower than VFIRX's 0.44% return. Over the past 10 years, VFIUX has underperformed VFIRX with an annualized return of 1.36%, while VFIRX has yielded a comparatively higher 1.71% annualized return.

VFIUX

• 1D: 0.00%
• 1M: 0.04%
• YTD: -0.36%
• 6M: -0.43%
• 1Y: 3.95%
• 3Y*: 3.47%
• 5Y*: 0.15%
• 10Y*: 1.36%

VFIRX

• 1D: -0.10%
• 1M: 0.12%
• YTD: 0.44%
• 6M: 0.65%
• 1Y: 3.58%
• 3Y*: 4.12%
• 5Y*: 1.51%
• 10Y*: 1.71%

*Multi-year figures are annualized to reflect compound growth (CAGR)

VFIUX vs. VFIRX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VFIUX Vanguard Intermediate-Term Treasury Fund Admiral Shares	-0.36%	7.65%	1.49%	3.85%	-10.34%	-2.30%	8.31%	6.40%	1.11%	1.67%
VFIRX Vanguard Short-Term Treasury Fund Admiral Shares	0.44%	5.47%	3.85%	3.66%	-4.61%	-0.80%	4.06%	3.71%	1.47%	0.40%

Correlation

The correlation between VFIUX and VFIRX is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.89
Correlation (3Y) Calculated over the trailing 3-year period	0.87
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (10Y) Calculated over the trailing 10-year period	0.83
Correlation (All Time) Calculated using the full available price history since Feb 14, 2001	0.84

The correlation between VFIUX and VFIRX has been stable across timeframes, ranging from 0.83 to 0.89 - a consistent structural relationship.

Return for Risk

VFIUX vs. VFIRX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

VFIUX

VFIUX Risk / Return Rank: 13
VFIUX Sharpe Ratio Rank: 13
VFIUX Sortino Ratio Rank: 14
VFIUX Omega Ratio Rank: 12
VFIUX Calmar Ratio Rank: 13
VFIUX Martin Ratio Rank: 12

VFIRX

VFIRX Risk / Return Rank: 42
VFIRX Sharpe Ratio Rank: 34
VFIRX Sortino Ratio Rank: 49
VFIRX Omega Ratio Rank: 43
VFIRX Calmar Ratio Rank: 43
VFIRX Martin Ratio Rank: 39

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

VFIUX vs. VFIRX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Intermediate-Term Treasury Fund Admiral Shares (VFIUX) and Vanguard Short-Term Treasury Fund Admiral Shares (VFIRX). 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.

	VFIUX	VFIRX	Difference
Sharpe ratio: Return per unit of total volatility	1.00	1.68	-0.69
Sortino ratio: Return per unit of downside risk	1.52	2.94	-1.42
Omega ratio: Gain probability vs. loss probability	1.17	1.35	-0.18
Calmar ratio: Return relative to maximum drawdown	1.21	2.49	-1.28
Martin ratio: Return relative to average drawdown	3.54	8.39	-4.85
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VFIUX vs. VFIRX - Sharpe Ratio Comparison

The current VFIUX Sharpe Ratio is 1.00, which is lower than the VFIRX Sharpe Ratio of 1.68. The chart below compares the historical Sharpe Ratios of VFIUX and VFIRX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	VFIUX	VFIRX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.00	1.68	-0.69
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.03	0.57	-0.54
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.29	0.81	-0.51
Sharpe Ratio (All Time) Calculated using the full available price history	0.69	1.16	-0.47

Drawdowns

VFIUX vs. VFIRX - Drawdown Comparison

The maximum VFIUX drawdown since its inception was -15.41%, which is greater than VFIRX's maximum drawdown of -6.73%. Use the drawdown chart below to compare losses from any high point for VFIUX and VFIRX.

Drawdown Indicators

	VFIUX	VFIRX	Difference
Max Drawdown Largest peak-to-trough decline	-15.41%	-6.73%	-8.68%
Max Drawdown (1Y) Largest decline over 1 year	-3.19%	-1.40%	-1.79%
Max Drawdown (3Y) Largest decline over 3 years	-4.75%	-1.40%	-3.35%
Max Drawdown (5Y) Largest decline over 5 years	-14.88%	-6.73%	-8.15%
Max Drawdown (10Y) Largest decline over 10 years	-15.41%	-6.73%	-8.68%
Current Drawdown Current decline from peak	-2.07%	-0.56%	-1.51%
Average Drawdown Average peak-to-trough decline	-2.80%	-0.71%	-2.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.09%	0.42%	+0.67%

Volatility

VFIUX vs. VFIRX - Volatility Comparison

Vanguard Intermediate-Term Treasury Fund Admiral Shares (VFIUX) has a higher volatility of 1.27% compared to Vanguard Short-Term Treasury Fund Admiral Shares (VFIRX) at 0.61%. This indicates that VFIUX's price experiences larger fluctuations and is considered to be riskier than VFIRX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VFIUX	VFIRX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.27%	0.61%	+0.66%
Volatility (6M) Calculated over the trailing 6-month period	2.76%	1.50%	+1.26%
Volatility (1Y) Calculated over the trailing 1-year period	3.89%	2.08%	+1.81%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.63%	2.68%	+2.95%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.67%	2.12%	+2.55%

VFIUX vs. VFIRX - Expense Ratio Comparison

Both VFIUX and VFIRX have an expense ratio of 0.10%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

Dividends

VFIUX vs. VFIRX - Dividend Comparison

VFIUX's dividend yield for the trailing twelve months is around 4.03%, more than VFIRX's 3.85% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VFIRX Vanguard Short-Term Treasury Fund Admiral Shares	3.85%	3.99%	4.49%	4.07%	2.03%	0.60%	2.30%	2.49%	2.21%	1.25%	1.28%	0.93%
VFIUX Vanguard Intermediate-Term Treasury Fund Admiral Shares	4.03%	3.99%	4.16%	3.25%	2.07%	1.07%	4.94%	2.40%	2.44%	1.86%	2.87%	2.60%

Frequently Asked Questions

Can I hold both VFIUX and VFIRX in my portfolio?

VFIUX and VFIRX have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VFIUX or VFIRX?

VFIUX has higher volatility (1.27%) compared to VFIRX (0.61%). In terms of maximum drawdown, VFIUX dropped -15.41% vs VFIRX's -6.73%.

Which has better risk-adjusted returns?

VFIRX currently has the higher Sharpe Ratio (1.68 vs 1.00), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.