VBIMX vs. VIPIX
VBIMX (Vanguard Intermediate-Term Bond Index Fund Institutional Shares) and VIPIX (Vanguard Inflation-Protected Securities Fund Institutional Shares) are both mutual funds - VBIMX is a Total Bond Market fund managed by Vanguard, while VIPIX is a Inflation-Protected Bonds fund managed by Vanguard. Over the past 10 years, VBIMX returned 1.92%/yr vs 2.67%/yr for VIPIX. A 0.79 correlation means they provide meaningful diversification when combined. VBIMX charges 0.05%/yr vs 0.07%/yr for VIPIX.
Performance
VBIMX vs. VIPIX - Performance Comparison
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Returns By Period
In the year-to-date period, VBIMX achieves a -0.04% return, which is significantly lower than VIPIX's 1.59% return. Over the past 10 years, VBIMX has underperformed VIPIX with an annualized return of 1.92%, while VIPIX has yielded a comparatively higher 2.67% annualized return.
VBIMX
- 1D
- 0.00%
- 1M
- 0.37%
- YTD
- -0.04%
- 6M
- -0.25%
- 1Y
- 5.09%
- 3Y*
- 4.29%
- 5Y*
- 0.33%
- 10Y*
- 1.92%
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%
VBIMX vs. VIPIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VBIMX Vanguard Intermediate-Term Bond Index Fund Institutional Shares | -0.04% | 8.59% | 1.55% | 5.78% | -13.25% | -2.50% | 9.83% | 10.22% | -0.13% | 3.89% |
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% |
Correlation
The correlation between VBIMX and VIPIX is 0.78, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.78 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.87 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.80 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.78 |
Correlation (All Time) Calculated using the full available price history since Jan 27, 2006 | 0.79 |
The correlation between VBIMX and VIPIX has been stable across timeframes, ranging from 0.78 to 0.87 - a consistent structural relationship.
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Return for Risk
VBIMX vs. VIPIX — Risk / Return Rank
VBIMX
VIPIX
VBIMX vs. VIPIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Intermediate-Term Bond Index Fund Institutional Shares (VBIMX) and Vanguard Inflation-Protected Securities Fund Institutional Shares (VIPIX). 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.
| VBIMX | VIPIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.27 | ||
| Sortino ratioReturn per unit of downside risk | -0.45 | ||
| Omega ratioGain probability vs. loss probability | 1.22 | 1.27 | -0.05 |
| Calmar ratioReturn relative to maximum drawdown | 1.49 | 2.60 | -1.11 |
| Martin ratioReturn relative to average drawdown | 4.52 | 7.88 | -3.35 |
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
| VBIMX | VIPIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.22 | 1.49 | -0.27 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.05 | 0.20 | -0.14 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.36 | 0.50 | -0.14 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.67 | 0.62 | +0.05 |
Drawdowns
VBIMX vs. VIPIX - Drawdown Comparison
The maximum VBIMX drawdown since its inception was -19.07%, which is greater than VIPIX's maximum drawdown of -15.04%. Use the drawdown chart below to compare losses from any high point for VBIMX and VIPIX.
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Drawdown Indicators
| VBIMX | VIPIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.07% | -15.04% | -4.03% |
Max Drawdown (1Y)Largest decline over 1 year | -3.42% | -2.00% | -1.42% |
Max Drawdown (3Y)Largest decline over 3 years | -6.05% | -4.46% | -1.59% |
Max Drawdown (5Y)Largest decline over 5 years | -18.84% | -14.33% | -4.51% |
Max Drawdown (10Y)Largest decline over 10 years | -19.07% | -14.33% | -4.74% |
Current DrawdownCurrent decline from peak | -1.83% | -0.12% | -1.71% |
Average DrawdownAverage peak-to-trough decline | -3.32% | -3.35% | +0.03% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.13% | 0.66% | +0.47% |
Volatility
VBIMX vs. VIPIX - Volatility Comparison
Vanguard Intermediate-Term Bond Index Fund Institutional Shares (VBIMX) has a higher volatility of 1.44% compared to Vanguard Inflation-Protected Securities Fund Institutional Shares (VIPIX) at 1.03%. This indicates that VBIMX's price experiences larger fluctuations and is considered to be riskier than VIPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VBIMX | VIPIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.44% | 1.03% | +0.41% |
Volatility (6M)Calculated over the trailing 6-month period | 3.01% | 2.42% | +0.59% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.19% | 3.49% | +0.70% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.39% | 6.03% | +0.36% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.38% | 5.37% | +0.01% |
VBIMX vs. VIPIX - Expense Ratio Comparison
VBIMX has a 0.05% expense ratio, which is lower than VIPIX's 0.07% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
VBIMX vs. VIPIX - Dividend Comparison
VBIMX's dividend yield for the trailing twelve months is around 4.23%, less than VIPIX's 4.52% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VBIMX Vanguard Intermediate-Term Bond Index Fund Institutional Shares | 4.23% | 4.03% | 3.82% | 2.82% | 2.41% | 3.23% | 2.95% | 2.75% | 2.89% | 2.76% | 3.08% | 3.12% |
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
VBIMX and VIPIX have a correlation of 0.78, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VBIMX has higher volatility (1.44%) compared to VIPIX (1.03%). In terms of maximum drawdown, VBIMX dropped -19.07% vs VIPIX's -15.04%.
VIPIX currently has the higher Sharpe Ratio (1.49 vs 1.22), 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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