TBUX vs. DFCF

Last updated Jun 13, 2026

TBUX (T. Rowe Price Ultra Short-Term Bond ETF) and DFCF (Dimensional Core Fixed Income ETF) are both exchange-traded funds - TBUX is a Ultrashort Bond fund actively managed by T. Rowe Price, while DFCF is a Intermediate Core Bond fund actively managed by Dimensional. Both are actively managed. Over the past 3 years, TBUX returned 5.89%/yr vs 5.07%/yr for DFCF. At a 0.46 correlation, their price movements are largely independent. Both charge a 0.17% expense ratio.

Performance

TBUX vs. DFCF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T. Rowe Price Ultra Short-Term Bond ETF (TBUX) and Dimensional Core Fixed Income ETF (DFCF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TBUX achieves a 1.83% return, which is significantly higher than DFCF's 0.63% return.

TBUX

• 1D: 0.00%
• 1M: 0.39%
• YTD: 1.83%
• 6M: 2.14%
• 1Y: 4.81%
• 3Y*: 5.89%
• 5Y*: —
• 10Y*: —

DFCF

• 1D: -0.09%
• 1M: 0.39%
• YTD: 0.63%
• 6M: 1.08%
• 1Y: 5.09%
• 3Y*: 5.07%
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

TBUX vs. DFCF - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
TBUX T. Rowe Price Ultra Short-Term Bond ETF	1.83%	5.37%	6.38%	6.39%	-0.13%	-0.07%
DFCF Dimensional Core Fixed Income ETF	0.63%	7.89%	1.86%	6.94%	-14.48%	0.04%

Correlation

The correlation between TBUX and DFCF is 0.52, 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	0.52
Correlation (3Y) Calculated over the trailing 3-year period	0.42
Correlation (All Time) Calculated using the full available price history since Nov 16, 2021	0.46

The correlation between TBUX and DFCF has been stable across timeframes, ranging from 0.42 to 0.52 - a consistent structural relationship.

Return for Risk

TBUX vs. DFCF — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

TBUX

TBUX Risk / Return Rank: 99
TBUX Sharpe Ratio Rank: 99
TBUX Sortino Ratio Rank: 99
TBUX Omega Ratio Rank: 99
TBUX Calmar Ratio Rank: 99
TBUX Martin Ratio Rank: 99

DFCF

DFCF Risk / Return Rank: 40
DFCF Sharpe Ratio Rank: 41
DFCF Sortino Ratio Rank: 42
DFCF Omega Ratio Rank: 38
DFCF Calmar Ratio Rank: 42
DFCF Martin Ratio Rank: 38

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

TBUX vs. DFCF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Ultra Short-Term Bond ETF (TBUX) and Dimensional Core Fixed Income ETF (DFCF). 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.

	TBUX	DFCF	Difference
Sharpe ratio: Return per unit of total volatility	7.19	1.30	+5.89
Sortino ratio: Return per unit of downside risk	14.51	1.90	+12.61
Omega ratio: Gain probability vs. loss probability	3.12	1.23	+1.90
Calmar ratio: Return relative to maximum drawdown	48.17	1.83	+46.33
Martin ratio: Return relative to average drawdown	182.82	5.39	+177.44

TBUX vs. DFCF - Sharpe Ratio Comparison

The current TBUX Sharpe Ratio is 7.19, which is higher than the DFCF Sharpe Ratio of 1.30. The chart below compares the historical Sharpe Ratios of TBUX and DFCF, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

TBUX vs. DFCF - Drawdown Comparison

The maximum TBUX drawdown since its inception was -1.82%, smaller than the maximum DFCF drawdown of -19.56%. Use the drawdown chart below to compare losses from any high point for TBUX and DFCF.

Drawdown Indicators

	TBUX	DFCF	Difference
Max Drawdown Largest peak-to-trough decline	-1.82%	-19.56%	+17.74%
Max Drawdown (1Y) Largest decline over 1 year	-0.10%	-2.79%	+2.69%
Max Drawdown (3Y) Largest decline over 3 years	-0.33%	-5.05%	+4.72%
Current Drawdown Current decline from peak	0.00%	-1.20%	+1.20%
Average Drawdown Average peak-to-trough decline	-0.28%	-7.99%	+7.71%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.03%	0.95%	-0.92%

Volatility

TBUX vs. DFCF - Volatility Comparison

The current volatility for T. Rowe Price Ultra Short-Term Bond ETF (TBUX) is 0.22%, while Dimensional Core Fixed Income ETF (DFCF) has a volatility of 1.44%. This indicates that TBUX experiences smaller price fluctuations and is considered to be less risky than DFCF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TBUX	DFCF	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.22%	1.44%	-1.22%
Volatility (6M) Calculated over the trailing 6-month period	0.46%	2.98%	-2.52%
Volatility (1Y) Calculated over the trailing 1-year period	0.67%	3.96%	-3.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.07%	6.45%	-5.38%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.07%	6.45%	-5.38%

TBUX vs. DFCF - Expense Ratio Comparison

Both TBUX and DFCF have an expense ratio of 0.17%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

Dividends

TBUX vs. DFCF - Dividend Comparison

TBUX's dividend yield for the trailing twelve months is around 4.48%, more than DFCF's 4.30% yield.

Position	TTM	2025	2024	2023	2022	2021
DFCF Dimensional Core Fixed Income ETF	4.30%	4.48%	4.61%	4.51%	3.27%	0.16%
TBUX T. Rowe Price Ultra Short-Term Bond ETF	4.48%	4.67%	5.39%	4.66%	2.58%	0.27%

Frequently Asked Questions

Can I hold both TBUX and DFCF in my portfolio?

TBUX and DFCF have a correlation of 0.52, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TBUX or DFCF?

DFCF has higher volatility (1.44%) compared to TBUX (0.22%). In terms of maximum drawdown, TBUX dropped -1.82% vs DFCF's -19.56%.

Which ETF is better, TBUX or DFCF?

On 3-year performance, TBUX leads with 5.89% vs 5.07% for DFCF. Both ETFs have the same 0.17% expense ratio. On volatility, TBUX has been the lower-risk option at 0.22%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, TBUX or DFCF?

Over the 3-year period, TBUX has performed better with a 5.89% return vs 5.07%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, TBUX or DFCF?

TBUX and DFCF have the same expense ratio: 0.17% per year.

Which ETF pays a higher dividend yield, TBUX or DFCF?

TBUX has the higher dividend yield at 4.48%, compared with 4.30% for DFCF.

What is the main difference between TBUX and DFCF?

TBUX is categorized as Ultrashort Bond, while DFCF is Intermediate Core Bond. They also come from different issuers: T. Rowe Price and Dimensional.

Which has better risk-adjusted returns?

TBUX currently has the higher Sharpe Ratio (7.19 vs 1.30), 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.