VBIUX vs. FXNAX
Compare and contrast key facts about Vanguard Intermediate-Term Bond Index Fund Institutional Plus (VBIUX) and Fidelity U.S. Bond Index Fund (FXNAX).
VBIUX is managed by Vanguard. It was launched on Nov 30, 2011. FXNAX is managed by Fidelity.
Performance
VBIUX vs. FXNAX - Performance Comparison
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VBIUX vs. FXNAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VBIUX Vanguard Intermediate-Term Bond Index Fund Institutional Plus | -0.65% | 8.60% | 1.56% | 5.53% | -13.24% | -2.64% | 9.83% | 10.23% | -0.13% | 3.90% |
FXNAX Fidelity U.S. Bond Index Fund | -0.26% | 7.14% | 1.35% | 5.82% | -13.55% | -2.10% | 7.63% | 8.50% | 0.04% | 3.50% |
Returns By Period
In the year-to-date period, VBIUX achieves a -0.65% return, which is significantly lower than FXNAX's -0.26% return. Over the past 10 years, VBIUX has outperformed FXNAX with an annualized return of 1.95%, while FXNAX has yielded a comparatively lower 1.54% annualized return.
VBIUX
- 1D
- 0.19%
- 1M
- -1.88%
- YTD
- -0.65%
- 6M
- 0.20%
- 1Y
- 4.35%
- 3Y*
- 3.73%
- 5Y*
- 0.39%
- 10Y*
- 1.95%
FXNAX
- 1D
- 0.19%
- 1M
- -1.60%
- YTD
- -0.26%
- 6M
- 0.47%
- 1Y
- 3.69%
- 3Y*
- 3.52%
- 5Y*
- 0.10%
- 10Y*
- 1.54%
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VBIUX vs. FXNAX - Expense Ratio Comparison
VBIUX has a 0.04% expense ratio, which is higher than FXNAX's 0.03% 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
VBIUX vs. FXNAX — Risk / Return Rank
VBIUX
FXNAX
VBIUX vs. FXNAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Intermediate-Term Bond Index Fund Institutional Plus (VBIUX) and Fidelity U.S. Bond Index Fund (FXNAX). 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.
| VBIUX | FXNAX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.00 | 0.93 | +0.07 |
Sortino ratioReturn per unit of downside risk | 1.46 | 1.33 | +0.12 |
Omega ratioGain probability vs. loss probability | 1.18 | 1.16 | +0.01 |
Calmar ratioReturn relative to maximum drawdown | 1.61 | 1.66 | -0.05 |
Martin ratioReturn relative to average drawdown | 5.33 | 4.68 | +0.66 |
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
| VBIUX | FXNAX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.00 | 0.93 | +0.07 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.06 | 0.02 | +0.05 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.36 | 0.31 | +0.05 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.47 | 0.45 | +0.02 |
Correlation
The correlation between VBIUX and FXNAX is 0.96, 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
VBIUX vs. FXNAX - Dividend Comparison
VBIUX's dividend yield for the trailing twelve months is around 3.80%, more than FXNAX's 3.34% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VBIUX Vanguard Intermediate-Term Bond Index Fund Institutional Plus | 3.80% | 4.04% | 3.82% | 2.59% | 2.42% | 3.08% | 2.95% | 2.76% | 2.89% | 2.77% | 3.09% | 3.14% |
FXNAX Fidelity U.S. Bond Index Fund | 3.34% | 3.58% | 3.40% | 3.15% | 1.81% | 1.74% | 2.92% | 2.68% | 2.74% | 2.57% | 2.76% | 2.52% |
Drawdowns
VBIUX vs. FXNAX - Drawdown Comparison
The maximum VBIUX drawdown since its inception was -19.18%, roughly equal to the maximum FXNAX drawdown of -19.51%. Use the drawdown chart below to compare losses from any high point for VBIUX and FXNAX.
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Drawdown Indicators
| VBIUX | FXNAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.18% | -19.51% | +0.33% |
Max Drawdown (1Y)Largest decline over 1 year | -3.18% | -2.71% | -0.47% |
Max Drawdown (5Y)Largest decline over 5 years | -18.83% | -18.54% | -0.29% |
Max Drawdown (10Y)Largest decline over 10 years | -19.18% | -19.51% | +0.33% |
Current DrawdownCurrent decline from peak | -2.43% | -3.53% | +1.10% |
Average DrawdownAverage peak-to-trough decline | -4.11% | -3.87% | -0.24% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.96% | 0.96% | 0.00% |
Volatility
VBIUX vs. FXNAX - Volatility Comparison
Vanguard Intermediate-Term Bond Index Fund Institutional Plus (VBIUX) has a higher volatility of 1.65% compared to Fidelity U.S. Bond Index Fund (FXNAX) at 1.55%. This indicates that VBIUX's price experiences larger fluctuations and is considered to be riskier than FXNAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VBIUX | FXNAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.65% | 1.55% | +0.10% |
Volatility (6M)Calculated over the trailing 6-month period | 2.77% | 2.58% | +0.19% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.60% | 4.35% | +0.25% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.36% | 6.04% | +0.32% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.37% | 4.99% | +0.38% |