TRBUX vs. BIAFX

Last updated Jun 23, 2026

TRBUX (T. Rowe Price Ultra Short-Term Bond Fund) and BIAFX (Brown Advisory Flexible Equity Fund) are both mutual funds - TRBUX is a Ultrashort Bond fund managed by T. Rowe Price, while BIAFX is a Large Cap Growth Equities fund managed by Brown Advisory Funds. Over the past 10 years, TRBUX returned 3.29%/yr vs 15.63%/yr for BIAFX. At a correlation of -0.01, they often move in opposite directions. TRBUX charges 0.31%/yr vs 0.68%/yr for BIAFX.

Performance

TRBUX vs. BIAFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T. Rowe Price Ultra Short-Term Bond Fund (TRBUX) and Brown Advisory Flexible Equity Fund (BIAFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TRBUX achieves a 1.39% return, which is significantly lower than BIAFX's 6.18% return. Over the past 10 years, TRBUX has underperformed BIAFX with an annualized return of 3.29%, while BIAFX has yielded a comparatively higher 15.63% annualized return.

TRBUX

• 1D: 0.00%
• 1M: 0.36%
• YTD: 1.39%
• 6M: 2.18%
• 1Y: 6.22%
• 3Y*: 6.75%
• 5Y*: 4.28%
• 10Y*: 3.29%

BIAFX

• 1D: 1.53%
• 1M: 2.29%
• YTD: 6.18%
• 6M: 5.89%
• 1Y: 14.87%
• 3Y*: 18.01%
• 5Y*: 10.80%
• 10Y*: 15.63%

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

TRBUX vs. BIAFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TRBUX T. Rowe Price Ultra Short-Term Bond Fund	1.39%	6.88%	7.88%	6.99%	-1.28%	0.22%	3.11%	3.60%	1.88%	1.83%
BIAFX Brown Advisory Flexible Equity Fund	6.18%	9.74%	23.72%	34.52%	-21.07%	24.95%	19.89%	42.29%	-4.15%	24.12%

Correlation

The correlation between TRBUX and BIAFX is 0.15, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.15
Correlation (3Y) Calculated over the trailing 3-year period	0.04
Correlation (5Y) Calculated over the trailing 5-year period	0.07
Correlation (10Y) Calculated over the trailing 10-year period	0.01
Correlation (All Time) Calculated using the full available price history since Oct 3, 2013	-0.01

The correlation between TRBUX and BIAFX shifts across timeframes, from -0.01 (all time) to 0.15 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

TRBUX vs. BIAFX — Risk / Return Rank

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

TRBUX

TRBUX Risk / Return Rank: 99
TRBUX Sharpe Ratio Rank: 98
TRBUX Sortino Ratio Rank: 99
TRBUX Omega Ratio Rank: 99
TRBUX Calmar Ratio Rank: 99
TRBUX Martin Ratio Rank: 99

BIAFX

BIAFX Risk / Return Rank: 15
BIAFX Sharpe Ratio Rank: 16
BIAFX Sortino Ratio Rank: 16
BIAFX Omega Ratio Rank: 16
BIAFX Calmar Ratio Rank: 13
BIAFX Martin Ratio Rank: 16

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.

TRBUX vs. BIAFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Ultra Short-Term Bond Fund (TRBUX) and Brown Advisory Flexible Equity Fund (BIAFX). 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.

	TRBUX	BIAFX	Difference
Sharpe ratio: Return per unit of total volatility	3.69	1.07	+2.62
Sortino ratio: Return per unit of downside risk	9.03	1.54	+7.49
Omega ratio: Gain probability vs. loss probability	3.56	1.20	+2.37
Calmar ratio: Return relative to maximum drawdown	16.38	1.11	+15.26
Martin ratio: Return relative to average drawdown	61.46	4.00	+57.46

TRBUX vs. BIAFX - Sharpe Ratio Comparison

The current TRBUX Sharpe Ratio is 3.69, which is higher than the BIAFX Sharpe Ratio of 1.07. The chart below compares the historical Sharpe Ratios of TRBUX and BIAFX, 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

TRBUX vs. BIAFX - Drawdown Comparison

The maximum TRBUX drawdown since its inception was -4.15%, smaller than the maximum BIAFX drawdown of -60.32%. Use the drawdown chart below to compare losses from any high point for TRBUX and BIAFX.

Drawdown Indicators

	TRBUX	BIAFX	Difference
Max Drawdown Largest peak-to-trough decline	-4.15%	-60.32%	+56.17%
Max Drawdown (1Y) Largest decline over 1 year	-0.39%	-13.10%	+12.71%
Max Drawdown (3Y) Largest decline over 3 years	-0.78%	-17.99%	+17.21%
Max Drawdown (5Y) Largest decline over 5 years	-2.68%	-27.44%	+24.76%
Max Drawdown (10Y) Largest decline over 10 years	-4.15%	-35.49%	+31.34%
Current Drawdown Current decline from peak	-0.20%	-0.72%	+0.52%
Average Drawdown Average peak-to-trough decline	-0.21%	-10.13%	+9.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.10%	3.64%	-3.54%

Volatility

TRBUX vs. BIAFX - Volatility Comparison

The current volatility for T. Rowe Price Ultra Short-Term Bond Fund (TRBUX) is 0.61%, while Brown Advisory Flexible Equity Fund (BIAFX) has a volatility of 4.94%. This indicates that TRBUX experiences smaller price fluctuations and is considered to be less risky than BIAFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TRBUX	BIAFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.61%	4.94%	-4.33%
Volatility (6M) Calculated over the trailing 6-month period	1.19%	10.91%	-9.72%
Volatility (1Y) Calculated over the trailing 1-year period	1.74%	13.65%	-11.91%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.69%	17.94%	-16.25%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.51%	19.22%	-17.71%

TRBUX vs. BIAFX - Expense Ratio Comparison

TRBUX has a 0.31% expense ratio, which is lower than BIAFX's 0.68% expense ratio.

Dividends

TRBUX vs. BIAFX - Dividend Comparison

TRBUX's dividend yield for the trailing twelve months is around 6.04%, more than BIAFX's 5.47% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BIAFX Brown Advisory Flexible Equity Fund	5.47%	5.81%	4.81%	2.67%	3.71%	3.75%	3.16%	8.65%	4.15%	0.42%	0.44%	0.58%
TRBUX T. Rowe Price Ultra Short-Term Bond Fund	6.04%	6.23%	6.36%	4.48%	1.53%	1.21%	1.86%	2.73%	2.47%	1.62%	1.18%	0.81%

Frequently Asked Questions

Can I hold both TRBUX and BIAFX in my portfolio?

TRBUX and BIAFX have a correlation of 0.15, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TRBUX or BIAFX?

BIAFX has higher volatility (4.94%) compared to TRBUX (0.61%). In terms of maximum drawdown, TRBUX dropped -4.15% vs BIAFX's -60.32%.

Which has better risk-adjusted returns?

TRBUX currently has the higher Sharpe Ratio (3.69 vs 1.07), 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.