TRBFX vs. TBUX
TRBFX (T. Rowe Price Limited Duration Inflation Focused Bond Fund) and TBUX (T. Rowe Price Ultra Short-Term Bond ETF) are both funds - TRBFX is a Inflation-Protected Bonds fund managed by T. Rowe Price, while TBUX is a Ultrashort Bond fund actively managed by T. Rowe Price. Over the past 3 years, TRBFX returned 4.81%/yr vs 5.82%/yr for TBUX. At a 0.39 correlation, their price movements are largely independent. TRBFX charges 0.41%/yr vs 0.17%/yr for TBUX.
Performance
TRBFX vs. TBUX - Performance Comparison
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Returns By Period
In the year-to-date period, TRBFX achieves a 1.12% return, which is significantly lower than TBUX's 1.79% return.
TRBFX
- 1D
- 0.21%
- 1M
- -0.11%
- YTD
- 1.12%
- 6M
- 1.34%
- 1Y
- 3.58%
- 3Y*
- 4.81%
- 5Y*
- 2.50%
- 10Y*
- 2.84%
TBUX
- 1D
- -0.04%
- 1M
- 0.27%
- YTD
- 1.79%
- 6M
- 1.95%
- 1Y
- 4.64%
- 3Y*
- 5.82%
- 5Y*
- —
- 10Y*
- —
TRBFX vs. TBUX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
TRBFX T. Rowe Price Limited Duration Inflation Focused Bond Fund | 1.12% | 6.34% | 4.60% | 3.01% | -5.19% | 1.12% |
TBUX T. Rowe Price Ultra Short-Term Bond ETF | 1.79% | 5.37% | 6.38% | 6.39% | -0.13% | -0.25% |
Correlation
The correlation between TRBFX and TBUX is 0.24, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.24 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.34 |
Correlation (All Time) Calculated using the full available price history since Sep 29, 2021 | 0.39 |
The correlation between TRBFX and TBUX shifts across timeframes, from 0.24 (1 year) to 0.39 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
TRBFX vs. TBUX — Risk / Return Rank
TRBFX
TBUX
TRBFX vs. TBUX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Limited Duration Inflation Focused Bond Fund (TRBFX) and T. Rowe Price Ultra Short-Term Bond ETF (TBUX). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| TRBFX | TBUX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -6.16 | ||
| Sortino ratioReturn per unit of downside risk | -12.37 | ||
| Omega ratioGain probability vs. loss probability | 1.31 | 2.97 | -1.66 |
| Calmar ratioReturn relative to maximum drawdown | 1.12 | 46.48 | -45.36 |
| Martin ratioReturn relative to average drawdown | 2.22 | 170.53 | -168.32 |
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Drawdowns
TRBFX vs. TBUX - Drawdown Comparison
The maximum TRBFX drawdown since its inception was -7.33%, which is greater than TBUX's maximum drawdown of -1.82%. Use the drawdown chart below to compare losses from any high point for TRBFX and TBUX.
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Drawdown Indicators
| TRBFX | TBUX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -7.33% | -1.82% | -5.51% |
Max Drawdown (1Y)Largest decline over 1 year | -3.48% | -0.10% | -3.38% |
Max Drawdown (3Y)Largest decline over 3 years | -3.51% | -0.33% | -3.18% |
Max Drawdown (5Y)Largest decline over 5 years | -7.33% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -7.33% | — | — |
Current DrawdownCurrent decline from peak | -1.98% | -0.07% | -1.91% |
Average DrawdownAverage peak-to-trough decline | -1.42% | -0.28% | -1.14% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.74% | 0.03% | +1.71% |
Volatility
TRBFX vs. TBUX - Volatility Comparison
T. Rowe Price Limited Duration Inflation Focused Bond Fund (TRBFX) has a higher volatility of 0.99% compared to T. Rowe Price Ultra Short-Term Bond ETF (TBUX) at 0.24%. This indicates that TRBFX's price experiences larger fluctuations and is considered to be riskier than TBUX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TRBFX | TBUX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.99% | 0.24% | +0.75% |
Volatility (6M)Calculated over the trailing 6-month period | 1.76% | 0.48% | +1.28% |
Volatility (1Y)Calculated over the trailing 1-year period | 5.11% | 0.67% | +4.44% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.15% | 1.06% | +4.09% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.02% | 1.06% | +2.96% |
TRBFX vs. TBUX - Expense Ratio Comparison
TRBFX has a 0.41% expense ratio, which is higher than TBUX's 0.17% expense ratio.
Dividends
TRBFX vs. TBUX - Dividend Comparison
TRBFX's dividend yield for the trailing twelve months is around 4.82%, more than TBUX's 4.48% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
TBUX T. Rowe Price Ultra Short-Term Bond ETF | 4.48% | 4.67% | 5.39% | 4.66% | 2.58% | 0.27% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
TRBFX T. Rowe Price Limited Duration Inflation Focused Bond Fund | 4.82% | 4.95% | 4.48% | 3.64% | 6.11% | 4.99% | 1.38% | 3.27% | 2.34% | 1.61% | 1.10% |
Frequently Asked Questions
TRBFX and TBUX have a correlation of 0.24, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TRBFX has higher volatility (0.99%) compared to TBUX (0.24%). In terms of maximum drawdown, TRBFX dropped -7.33% vs TBUX's -1.82%.
TBUX currently has the higher Sharpe Ratio (6.93 vs 0.77), 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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