VIIGX vs. VSBIX
VIIGX (Vanguard Intermediate-Term Treasury Index Fund Institutional Shares) and VSBIX (Vanguard Short-Term Treasury Index Fund Institutional Shares) are both Government Bonds funds from Vanguard. Over the past 10 years, VIIGX returned 1.28%/yr vs 1.77%/yr for VSBIX. Their correlation of 0.83 suggests significant overlap in exposure. Both charge a 0.05% expense ratio.
Performance
VIIGX vs. VSBIX - Performance Comparison
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Returns By Period
In the year-to-date period, VIIGX achieves a -0.43% return, which is significantly lower than VSBIX's 0.48% return. Over the past 10 years, VIIGX has underperformed VSBIX with an annualized return of 1.28%, while VSBIX has yielded a comparatively higher 1.77% annualized return.
VIIGX
- 1D
- -0.16%
- 1M
- -0.20%
- YTD
- -0.43%
- 6M
- -0.34%
- 1Y
- 3.07%
- 3Y*
- 3.53%
- 5Y*
- 0.10%
- 10Y*
- 1.28%
VSBIX
- 1D
- -0.04%
- 1M
- 0.03%
- YTD
- 0.48%
- 6M
- 0.81%
- 1Y
- 3.27%
- 3Y*
- 4.27%
- 5Y*
- 1.87%
- 10Y*
- 1.77%
VIIGX vs. VSBIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VIIGX Vanguard Intermediate-Term Treasury Index Fund Institutional Shares | -0.43% | 7.38% | 1.62% | 4.39% | -10.65% | -2.38% | 7.65% | 6.32% | 1.36% | 1.60% |
VSBIX Vanguard Short-Term Treasury Index Fund Institutional Shares | 0.48% | 5.11% | 4.37% | 4.28% | -3.87% | -0.67% | 3.11% | 3.53% | 1.52% | 0.40% |
Correlation
The correlation between VIIGX and VSBIX is 0.91, 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 | 0.91 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.89 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.88 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.86 |
Correlation (All Time) Calculated using the full available price history since Nov 24, 2009 | 0.83 |
The correlation between VIIGX and VSBIX has been stable across timeframes, ranging from 0.83 to 0.91 - a consistent structural relationship.
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Return for Risk
VIIGX vs. VSBIX — Risk / Return Rank
VIIGX
VSBIX
VIIGX vs. VSBIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Intermediate-Term Treasury Index Fund Institutional Shares (VIIGX) and Vanguard Short-Term Treasury Index Fund Institutional Shares (VSBIX). 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.
| VIIGX | VSBIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.68 | ||
| Sortino ratioReturn per unit of downside risk | -2.99 | ||
| Omega ratioGain probability vs. loss probability | 1.19 | 1.58 | -0.39 |
| Calmar ratioReturn relative to maximum drawdown | 1.27 | 4.28 | -3.01 |
| Martin ratioReturn relative to average drawdown | 3.81 | 17.60 | -13.79 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| VIIGX | VSBIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.05 | 2.73 | -1.68 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.02 | 0.96 | -0.95 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.29 | 1.16 | -0.87 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.49 | 1.09 | -0.59 |
Drawdowns
VIIGX vs. VSBIX - Drawdown Comparison
The maximum VIIGX drawdown since its inception was -15.96%, which is greater than VSBIX's maximum drawdown of -5.74%. Use the drawdown chart below to compare losses from any high point for VIIGX and VSBIX.
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Drawdown Indicators
| VIIGX | VSBIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -15.96% | -5.74% | -10.22% |
Max Drawdown (1Y)Largest decline over 1 year | -2.83% | -0.81% | -2.02% |
Max Drawdown (3Y)Largest decline over 3 years | -4.27% | -0.81% | -3.46% |
Max Drawdown (5Y)Largest decline over 5 years | -15.09% | -5.74% | -9.35% |
Max Drawdown (10Y)Largest decline over 10 years | -15.96% | -5.74% | -10.22% |
Current DrawdownCurrent decline from peak | -2.03% | -0.24% | -1.79% |
Average DrawdownAverage peak-to-trough decline | -3.42% | -0.59% | -2.83% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.94% | 0.20% | +0.74% |
Volatility
VIIGX vs. VSBIX - Volatility Comparison
Vanguard Intermediate-Term Treasury Index Fund Institutional Shares (VIIGX) has a higher volatility of 1.07% compared to Vanguard Short-Term Treasury Index Fund Institutional Shares (VSBIX) at 0.39%. This indicates that VIIGX's price experiences larger fluctuations and is considered to be riskier than VSBIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VIIGX | VSBIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.07% | 0.39% | +0.68% |
Volatility (6M)Calculated over the trailing 6-month period | 2.39% | 0.86% | +1.53% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.42% | 1.27% | +2.15% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.34% | 1.95% | +3.39% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.45% | 1.53% | +2.92% |
VIIGX vs. VSBIX - Expense Ratio Comparison
Both VIIGX and VSBIX have an expense ratio of 0.05%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
VIIGX vs. VSBIX - Dividend Comparison
VIIGX's dividend yield for the trailing twelve months is around 3.86%, which matches VSBIX's 3.87% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VIIGX Vanguard Intermediate-Term Treasury Index Fund Institutional Shares | 3.86% | 3.78% | 3.97% | 2.71% | 1.73% | 1.91% | 2.23% | 2.23% | 2.07% | 1.68% | 1.64% | 1.72% |
VSBIX Vanguard Short-Term Treasury Index Fund Institutional Shares | 3.87% | 3.99% | 4.52% | 3.31% | 1.14% | 0.65% | 1.74% | 2.28% | 1.81% | 1.11% | 0.80% | 0.74% |
Frequently Asked Questions
With a correlation of 0.91, VIIGX and VSBIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
VIIGX has higher volatility (1.07%) compared to VSBIX (0.39%). In terms of maximum drawdown, VIIGX dropped -15.96% vs VSBIX's -5.74%.
VSBIX currently has the higher Sharpe Ratio (2.73 vs 1.05), 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.
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