PBDIX vs. VUBFX
Compare and contrast key facts about T. Rowe Price QM U.S. Bond Index Fund (PBDIX) and Vanguard Ultra-Short-Term Bond Fund Investor Shares (VUBFX).
PBDIX is managed by T. Rowe Price. VUBFX is managed by Vanguard. It was launched on Feb 24, 2015.
Performance
PBDIX vs. VUBFX - Performance Comparison
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PBDIX vs. VUBFX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PBDIX T. Rowe Price QM U.S. Bond Index Fund | -0.33% | 10.63% | 1.96% | 5.47% | -14.24% | -1.45% | 8.17% | 8.69% | -0.01% | 3.83% |
VUBFX Vanguard Ultra-Short-Term Bond Fund Investor Shares | 0.59% | 5.04% | 5.99% | 5.43% | -0.53% | 0.03% | 1.95% | 3.34% | 1.94% | 1.23% |
Returns By Period
In the year-to-date period, PBDIX achieves a -0.33% return, which is significantly lower than VUBFX's 0.59% return. Over the past 10 years, PBDIX has underperformed VUBFX with an annualized return of 2.02%, while VUBFX has yielded a comparatively higher 2.56% annualized return.
PBDIX
- 1D
- 0.52%
- 1M
- -2.44%
- YTD
- -0.33%
- 6M
- 1.93%
- 1Y
- 7.31%
- 3Y*
- 4.79%
- 5Y*
- 0.69%
- 10Y*
- 2.02%
VUBFX
- 1D
- 0.10%
- 1M
- -0.06%
- YTD
- 0.59%
- 6M
- 1.72%
- 1Y
- 4.31%
- 3Y*
- 5.24%
- 5Y*
- 3.26%
- 10Y*
- 2.56%
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PBDIX vs. VUBFX - Expense Ratio Comparison
PBDIX has a 0.23% expense ratio, which is higher than VUBFX's 0.20% 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
PBDIX vs. VUBFX — Risk / Return Rank
PBDIX
VUBFX
PBDIX vs. VUBFX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price QM U.S. Bond Index Fund (PBDIX) and Vanguard Ultra-Short-Term Bond Fund Investor Shares (VUBFX). 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.
| PBDIX | VUBFX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.73 | 5.20 | -3.47 |
Sortino ratioReturn per unit of downside risk | 2.51 | 10.21 | -7.70 |
Omega ratioGain probability vs. loss probability | 1.31 | 3.61 | -2.30 |
Calmar ratioReturn relative to maximum drawdown | 2.64 | 14.81 | -12.17 |
Martin ratioReturn relative to average drawdown | 8.49 | 67.09 | -58.59 |
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
| PBDIX | VUBFX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.73 | 5.20 | -3.47 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.11 | 3.34 | -3.22 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.41 | 3.07 | -2.66 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.85 | 3.06 | -2.20 |
Correlation
The correlation between PBDIX and VUBFX is 0.40, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
PBDIX vs. VUBFX - Dividend Comparison
PBDIX's dividend yield for the trailing twelve months is around 7.42%, more than VUBFX's 4.12% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PBDIX T. Rowe Price QM U.S. Bond Index Fund | 7.42% | 7.33% | 4.48% | 3.49% | 2.01% | 1.84% | 3.59% | 3.18% | 2.94% | 2.75% | 2.82% | 2.99% |
VUBFX Vanguard Ultra-Short-Term Bond Fund Investor Shares | 4.12% | 4.62% | 5.42% | 4.06% | 1.28% | 0.43% | 1.52% | 2.58% | 2.13% | 1.43% | 0.98% | 0.00% |
Drawdowns
PBDIX vs. VUBFX - Drawdown Comparison
The maximum PBDIX drawdown since its inception was -19.20%, which is greater than VUBFX's maximum drawdown of -1.86%. Use the drawdown chart below to compare losses from any high point for PBDIX and VUBFX.
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Drawdown Indicators
| PBDIX | VUBFX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.20% | -1.86% | -17.34% |
Max Drawdown (1Y)Largest decline over 1 year | -2.94% | -0.30% | -2.64% |
Max Drawdown (5Y)Largest decline over 5 years | -19.10% | -1.86% | -17.24% |
Max Drawdown (10Y)Largest decline over 10 years | -19.20% | -1.86% | -17.34% |
Current DrawdownCurrent decline from peak | -2.44% | -0.10% | -2.34% |
Average DrawdownAverage peak-to-trough decline | -2.52% | -0.17% | -2.35% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.92% | 0.07% | +0.85% |
Volatility
PBDIX vs. VUBFX - Volatility Comparison
T. Rowe Price QM U.S. Bond Index Fund (PBDIX) has a higher volatility of 1.71% compared to Vanguard Ultra-Short-Term Bond Fund Investor Shares (VUBFX) at 0.34%. This indicates that PBDIX's price experiences larger fluctuations and is considered to be riskier than VUBFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PBDIX | VUBFX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.71% | 0.34% | +1.37% |
Volatility (6M)Calculated over the trailing 6-month period | 2.93% | 0.55% | +2.38% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.72% | 0.84% | +3.88% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.02% | 0.98% | +5.04% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.98% | 0.84% | +4.14% |