VBISX vs. VBIAX
Compare and contrast key facts about Vanguard Short-Term Bond Index Fund (VBISX) and Vanguard Balanced Index Fund Admiral Shares (VBIAX).
VBISX is managed by Vanguard. It was launched on Mar 1, 1994. VBIAX is managed by Vanguard. It was launched on Nov 13, 2000.
Performance
VBISX vs. VBIAX - Performance Comparison
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VBISX vs. VBIAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VBISX Vanguard Short-Term Bond Index Fund | -0.34% | 5.67% | 3.66% | 4.54% | -5.61% | -1.35% | 4.63% | 4.78% | 1.27% | 1.10% |
VBIAX Vanguard Balanced Index Fund Admiral Shares | -4.19% | 13.61% | 14.58% | 17.54% | -16.90% | 14.21% | 16.40% | 21.78% | -2.86% | 13.89% |
Returns By Period
In the year-to-date period, VBISX achieves a -0.34% return, which is significantly higher than VBIAX's -4.19% return. Over the past 10 years, VBISX has underperformed VBIAX with an annualized return of 1.76%, while VBIAX has yielded a comparatively higher 8.77% annualized return.
VBISX
- 1D
- 0.20%
- 1M
- -1.25%
- YTD
- -0.34%
- 6M
- 0.83%
- 1Y
- 3.56%
- 3Y*
- 3.85%
- 5Y*
- 1.39%
- 10Y*
- 1.76%
VBIAX
- 1D
- -0.06%
- 1M
- -5.43%
- YTD
- -4.19%
- 6M
- -2.40%
- 1Y
- 10.89%
- 3Y*
- 11.56%
- 5Y*
- 6.33%
- 10Y*
- 8.77%
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VBISX vs. VBIAX - Expense Ratio Comparison
VBISX has a 0.15% expense ratio, which is higher than VBIAX's 0.07% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Return for Risk
VBISX vs. VBIAX — Risk / Return Rank
VBISX
VBIAX
VBISX vs. VBIAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Short-Term Bond Index Fund (VBISX) and Vanguard Balanced Index Fund Admiral Shares (VBIAX). 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.
| VBISX | VBIAX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.64 | 1.01 | +0.64 |
Sortino ratioReturn per unit of downside risk | 2.70 | 1.51 | +1.19 |
Omega ratioGain probability vs. loss probability | 1.33 | 1.22 | +0.11 |
Calmar ratioReturn relative to maximum drawdown | 2.72 | 1.31 | +1.40 |
Martin ratioReturn relative to average drawdown | 9.96 | 6.22 | +3.75 |
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
| VBISX | VBIAX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.64 | 1.01 | +0.64 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.48 | 0.58 | -0.10 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.74 | 0.79 | -0.04 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.34 | 0.60 | +0.74 |
Correlation
The correlation between VBISX and VBIAX is -0.07. This indicates that the assets' prices tend to move in opposite directions. Negative correlation can be particularly beneficial for diversification and risk management, as one asset may offset the losses of the other during market fluctuations.
Dividends
VBISX vs. VBIAX - Dividend Comparison
VBISX's dividend yield for the trailing twelve months is around 3.52%, less than VBIAX's 5.84% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VBISX Vanguard Short-Term Bond Index Fund | 3.52% | 3.44% | 3.29% | 2.10% | 1.38% | 1.16% | 1.72% | 2.16% | 1.92% | 1.58% | 1.42% | 1.34% |
VBIAX Vanguard Balanced Index Fund Admiral Shares | 5.84% | 6.00% | 5.27% | 4.35% | 2.83% | 3.19% | 2.65% | 2.28% | 2.32% | 1.95% | 2.09% | 2.09% |
Drawdowns
VBISX vs. VBIAX - Drawdown Comparison
The maximum VBISX drawdown since its inception was -8.79%, smaller than the maximum VBIAX drawdown of -35.90%. Use the drawdown chart below to compare losses from any high point for VBISX and VBIAX.
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Drawdown Indicators
| VBISX | VBIAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -8.79% | -35.90% | +27.11% |
Max Drawdown (1Y)Largest decline over 1 year | -1.54% | -7.78% | +6.24% |
Max Drawdown (5Y)Largest decline over 5 years | -8.72% | -21.53% | +12.81% |
Max Drawdown (10Y)Largest decline over 10 years | -8.79% | -22.78% | +13.99% |
Current DrawdownCurrent decline from peak | -1.25% | -5.83% | +4.58% |
Average DrawdownAverage peak-to-trough decline | -0.87% | -4.47% | +3.60% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.42% | 1.64% | -1.22% |
Volatility
VBISX vs. VBIAX - Volatility Comparison
The current volatility for Vanguard Short-Term Bond Index Fund (VBISX) is 0.74%, while Vanguard Balanced Index Fund Admiral Shares (VBIAX) has a volatility of 3.07%. This indicates that VBISX experiences smaller price fluctuations and is considered to be less risky than VBIAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VBISX | VBIAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.74% | 3.07% | -2.33% |
Volatility (6M)Calculated over the trailing 6-month period | 1.50% | 5.93% | -4.43% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.44% | 11.27% | -8.83% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.91% | 11.02% | -8.11% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.37% | 11.17% | -8.80% |