VIPIX vs. VBIAX
VIPIX (Vanguard Inflation-Protected Securities Fund Institutional Shares) and VBIAX (Vanguard Balanced Index Fund Admiral Shares) are both mutual funds - VIPIX is a Inflation-Protected Bonds fund managed by Vanguard, while VBIAX is a Diversified Portfolio fund tracking the 60% CRSP US Total Market Index / 40% Bloomberg U.S. Aggregate Float Adjusted Index. Over the past 10 years, VIPIX returned 2.67%/yr vs 9.83%/yr for VBIAX. At a 0.02 correlation, their price movements are largely independent. Both charge a 0.07% expense ratio.
Performance
VIPIX vs. VBIAX - Performance Comparison
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Returns By Period
In the year-to-date period, VIPIX achieves a 1.59% return, which is significantly lower than VBIAX's 7.35% return. Over the past 10 years, VIPIX has underperformed VBIAX with an annualized return of 2.67%, while VBIAX has yielded a comparatively higher 9.83% annualized return.
VIPIX
- 1D
- -0.11%
- 1M
- 0.11%
- YTD
- 1.59%
- 6M
- 1.20%
- 1Y
- 5.29%
- 3Y*
- 4.06%
- 5Y*
- 1.18%
- 10Y*
- 2.67%
VBIAX
- 1D
- 0.15%
- 1M
- 3.71%
- YTD
- 7.35%
- 6M
- 7.26%
- 1Y
- 19.35%
- 3Y*
- 15.04%
- 5Y*
- 8.01%
- 10Y*
- 9.83%
VIPIX vs. VBIAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VIPIX Vanguard Inflation-Protected Securities Fund Institutional Shares | 1.59% | 6.98% | 1.85% | 3.85% | -11.93% | 5.73% | 11.05% | 8.18% | -1.40% | 2.97% |
VBIAX Vanguard Balanced Index Fund Admiral Shares | 7.35% | 13.61% | 14.58% | 17.54% | -16.90% | 14.21% | 16.40% | 21.78% | -2.86% | 13.89% |
Correlation
The correlation between VIPIX and VBIAX is 0.30, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.30 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.36 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.32 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.19 |
Correlation (All Time) Calculated using the full available price history since Dec 16, 2003 | 0.02 |
Over the past year, VIPIX and VBIAX have become more correlated (0.30) than their long-term average of 0.02, meaning their price movements have been converging.
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Return for Risk
VIPIX vs. VBIAX — Risk / Return Rank
VIPIX
VBIAX
VIPIX vs. VBIAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Inflation-Protected Securities Fund Institutional Shares (VIPIX) 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.
| VIPIX | VBIAX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.03 | ||
| Sortino ratioReturn per unit of downside risk | -1.30 | ||
| Omega ratioGain probability vs. loss probability | 1.27 | 1.47 | -0.20 |
| Calmar ratioReturn relative to maximum drawdown | 2.60 | 3.42 | -0.82 |
| Martin ratioReturn relative to average drawdown | 7.88 | 15.60 | -7.72 |
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
| VIPIX | VBIAX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.49 | 2.52 | -1.03 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.20 | 0.73 | -0.53 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.50 | 0.88 | -0.38 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.62 | 0.64 | -0.02 |
Drawdowns
VIPIX vs. VBIAX - Drawdown Comparison
The maximum VIPIX drawdown since its inception was -15.04%, smaller than the maximum VBIAX drawdown of -35.90%. Use the drawdown chart below to compare losses from any high point for VIPIX and VBIAX.
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Drawdown Indicators
| VIPIX | VBIAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -15.04% | -35.90% | +20.86% |
Max Drawdown (1Y)Largest decline over 1 year | -2.00% | -5.83% | +3.83% |
Max Drawdown (3Y)Largest decline over 3 years | -4.46% | -11.70% | +7.24% |
Max Drawdown (5Y)Largest decline over 5 years | -14.33% | -21.53% | +7.20% |
Max Drawdown (10Y)Largest decline over 10 years | -14.33% | -22.78% | +8.45% |
Current DrawdownCurrent decline from peak | -0.12% | 0.00% | -0.12% |
Average DrawdownAverage peak-to-trough decline | -3.35% | -4.44% | +1.09% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.66% | 1.27% | -0.61% |
Volatility
VIPIX vs. VBIAX - Volatility Comparison
The current volatility for Vanguard Inflation-Protected Securities Fund Institutional Shares (VIPIX) is 1.03%, while Vanguard Balanced Index Fund Admiral Shares (VBIAX) has a volatility of 2.26%. This indicates that VIPIX 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
| VIPIX | VBIAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.03% | 2.26% | -1.23% |
Volatility (6M)Calculated over the trailing 6-month period | 2.42% | 6.11% | -3.69% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.49% | 7.90% | -4.41% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.03% | 11.05% | -5.02% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.37% | 11.21% | -5.84% |
VIPIX vs. VBIAX - Expense Ratio Comparison
Both VIPIX and VBIAX have an expense ratio of 0.07%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
VIPIX vs. VBIAX - Dividend Comparison
VIPIX's dividend yield for the trailing twelve months is around 4.52%, less than VBIAX's 5.21% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VBIAX Vanguard Balanced Index Fund Admiral Shares | 5.21% | 6.00% | 5.27% | 4.35% | 2.83% | 3.19% | 2.65% | 2.28% | 2.32% | 1.95% | 2.09% | 2.09% |
VIPIX Vanguard Inflation-Protected Securities Fund Institutional Shares | 4.52% | 4.77% | 4.20% | 4.34% | 8.49% | 5.16% | 1.41% | 2.32% | 3.15% | 2.45% | 3.50% | 0.91% |
Frequently Asked Questions
VIPIX and VBIAX have a correlation of 0.30, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VBIAX has higher volatility (2.26%) compared to VIPIX (1.03%). In terms of maximum drawdown, VIPIX dropped -15.04% vs VBIAX's -35.90%.
VBIAX currently has the higher Sharpe Ratio (2.52 vs 1.49), 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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