VBMPX vs. VBIRX
Compare and contrast key facts about Vanguard Total Bond Market Index Fund Institutional Plus Shares (VBMPX) and Vanguard Short-Term Bond Index Fund Admiral Shares (VBIRX).
VBMPX is managed by Vanguard. It was launched on Feb 5, 2010. VBIRX is managed by Vanguard. It was launched on Nov 12, 2001.
Performance
VBMPX vs. VBIRX - Performance Comparison
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VBMPX vs. VBIRX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VBMPX Vanguard Total Bond Market Index Fund Institutional Plus Shares | -0.28% | 7.18% | 1.27% | 5.75% | -13.14% | -1.95% | 7.75% | 8.74% | -0.24% | 3.58% |
VBIRX Vanguard Short-Term Bond Index Fund Admiral Shares | -0.23% | 6.09% | 3.75% | 4.87% | -5.63% | -1.20% | 4.69% | 4.86% | 1.37% | 1.18% |
Returns By Period
In the year-to-date period, VBMPX achieves a -0.28% return, which is significantly lower than VBIRX's -0.23% return. Over the past 10 years, VBMPX has underperformed VBIRX with an annualized return of 1.62%, while VBIRX has yielded a comparatively higher 1.90% annualized return.
VBMPX
- 1D
- 0.21%
- 1M
- -1.63%
- YTD
- -0.28%
- 6M
- 0.40%
- 1Y
- 3.68%
- 3Y*
- 3.53%
- 5Y*
- 0.20%
- 10Y*
- 1.62%
VBIRX
- 1D
- 0.10%
- 1M
- -0.87%
- YTD
- -0.23%
- 6M
- 0.77%
- 1Y
- 3.65%
- 3Y*
- 4.15%
- 5Y*
- 1.60%
- 10Y*
- 1.90%
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VBMPX vs. VBIRX - Expense Ratio Comparison
VBMPX has a 0.03% expense ratio, which is lower than VBIRX'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%.
Return for Risk
VBMPX vs. VBIRX — Risk / Return Rank
VBMPX
VBIRX
VBMPX vs. VBIRX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Total Bond Market Index Fund Institutional Plus Shares (VBMPX) and Vanguard Short-Term Bond Index Fund Admiral Shares (VBIRX). 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.
| VBMPX | VBIRX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.93 | 1.58 | -0.65 |
Sortino ratioReturn per unit of downside risk | 1.34 | 2.58 | -1.24 |
Omega ratioGain probability vs. loss probability | 1.16 | 1.31 | -0.15 |
Calmar ratioReturn relative to maximum drawdown | 1.67 | 2.71 | -1.04 |
Martin ratioReturn relative to average drawdown | 4.72 | 9.87 | -5.15 |
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
| VBMPX | VBIRX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.93 | 1.58 | -0.65 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.03 | 0.55 | -0.51 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.33 | 0.80 | -0.47 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.51 | 0.97 | -0.46 |
Correlation
The correlation between VBMPX and VBIRX is 0.81, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
VBMPX vs. VBIRX - Dividend Comparison
VBMPX's dividend yield for the trailing twelve months is around 3.62%, which matches VBIRX's 3.60% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VBMPX Vanguard Total Bond Market Index Fund Institutional Plus Shares | 3.62% | 3.88% | 3.69% | 3.11% | 2.61% | 1.81% | 2.41% | 2.75% | 2.58% | 2.58% | 2.55% | 2.85% |
VBIRX Vanguard Short-Term Bond Index Fund Admiral Shares | 3.60% | 3.83% | 3.37% | 2.41% | 1.46% | 1.22% | 1.77% | 2.24% | 2.03% | 1.66% | 1.50% | 1.41% |
Drawdowns
VBMPX vs. VBIRX - Drawdown Comparison
The maximum VBMPX drawdown since its inception was -18.90%, which is greater than VBIRX's maximum drawdown of -8.69%. Use the drawdown chart below to compare losses from any high point for VBMPX and VBIRX.
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Drawdown Indicators
| VBMPX | VBIRX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.90% | -8.69% | -10.21% |
Max Drawdown (1Y)Largest decline over 1 year | -2.73% | -1.54% | -1.19% |
Max Drawdown (5Y)Largest decline over 5 years | -18.12% | -8.64% | -9.48% |
Max Drawdown (10Y)Largest decline over 10 years | -18.90% | -8.69% | -10.21% |
Current DrawdownCurrent decline from peak | -2.93% | -1.16% | -1.77% |
Average DrawdownAverage peak-to-trough decline | -3.54% | -0.99% | -2.55% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.97% | 0.42% | +0.55% |
Volatility
VBMPX vs. VBIRX - Volatility Comparison
Vanguard Total Bond Market Index Fund Institutional Plus Shares (VBMPX) has a higher volatility of 1.55% compared to Vanguard Short-Term Bond Index Fund Admiral Shares (VBIRX) at 0.71%. This indicates that VBMPX's price experiences larger fluctuations and is considered to be riskier than VBIRX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VBMPX | VBIRX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.55% | 0.71% | +0.84% |
Volatility (6M)Calculated over the trailing 6-month period | 2.59% | 1.50% | +1.09% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.36% | 2.42% | +1.94% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.99% | 2.93% | +3.06% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.97% | 2.39% | +2.58% |