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TBUX vs. YAFFX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

TBUX vs. YAFFX

Last updated Jun 13, 2026

TBUX (T. Rowe Price Ultra Short-Term Bond ETF) and YAFFX (AMG Yacktman Focused Fund) are both funds - TBUX is a Ultrashort Bond fund actively managed by T. Rowe Price, while YAFFX is a Large Cap Value Equities fund managed by AMG. Over the past 3 years, TBUX returned 5.89%/yr vs 16.12%/yr for YAFFX. At a 0.10 correlation, their price movements are largely independent. TBUX charges 0.17%/yr vs 1.25%/yr for YAFFX.

Performance

TBUX vs. YAFFX - 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 AMG Yacktman Focused Fund (YAFFX). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, TBUX achieves a 1.83% return, which is significantly lower than YAFFX's 25.77% return.

TBUX

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

YAFFX

1D
2.63%
1M
0.37%
YTD
25.77%
6M
8.10%
1Y
20.56%
3Y*
16.12%
5Y*
9.34%
10Y*
12.50%
*Multi-year figures are annualized to reflect compound growth (CAGR)

TBUX vs. YAFFX - Yearly Performance Comparison

2026 (YTD)20252024202320222021
TBUX
T. Rowe Price Ultra Short-Term Bond ETF		1.83%5.37%6.38%6.39%-0.13%-0.25%
YAFFX
AMG Yacktman Focused Fund		25.77%3.89%9.30%16.53%-8.20%3.91%

Correlation

The correlation between TBUX and YAFFX is 0.09, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.09

Correlation (3Y)
Calculated over the trailing 3-year period

0.09

Correlation (All Time)
Calculated using the full available price history since Sep 29, 2021

0.10

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

T. Rowe Price Ultra Short-Term Bond ETF

AMG Yacktman Focused Fund

Often compared with TBUX:
TBUX vs. USTBTBUX vs. PULSTBUX vs. CSHITBUX vs. BINCTBUX vs. NEARTBUX vs. PAAATBUX vs. TRBFX
Often compared with YAFFX:
YAFFX vs. IVEYAFFX vs. AKREXYAFFX vs. BACAXYAFFX vs. CZAYAFFX vs. DSEEXYAFFX vs. VIGYAFFX vs. VTV

Return for Risk

TBUX vs. YAFFX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
TBUX
TBUX Risk / Return Rank: 9999
Overall Rank
TBUX Sharpe Ratio Rank: 9999
Sharpe Ratio Rank
TBUX Sortino Ratio Rank: 9999
Sortino Ratio Rank
TBUX Omega Ratio Rank: 9999
Omega Ratio Rank
TBUX Calmar Ratio Rank: 9999
Calmar Ratio Rank
TBUX Martin Ratio Rank: 9999
Martin Ratio Rank
YAFFX
YAFFX Risk / Return Rank: 2222
Overall Rank
YAFFX Sharpe Ratio Rank: 1818
Sharpe Ratio Rank
YAFFX Sortino Ratio Rank: 1313
Sortino Ratio Rank
YAFFX Omega Ratio Rank: 3939
Omega Ratio Rank
YAFFX Calmar Ratio Rank: 2020
Calmar Ratio Rank
YAFFX Martin Ratio Rank: 2222
Martin Ratio Rank
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. YAFFX - 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 AMG Yacktman Focused Fund (YAFFX). 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.

TBUXYAFFXDifference
Sharpe ratioReturn per unit of total volatility
7.19
0.94

+6.24

Sortino ratioReturn per unit of downside risk
14.51
1.12

+13.39

Omega ratioGain probability vs. loss probability

3.12

1.26

+1.86

Calmar ratioReturn relative to maximum drawdown

48.17

1.26

+46.91

Martin ratioReturn relative to average drawdown

182.82

4.47

+178.36

TBUX vs. YAFFX - Sharpe Ratio Comparison

The current TBUX Sharpe Ratio is 7.19, which is higher than the YAFFX Sharpe Ratio of 0.94. The chart below compares the historical Sharpe Ratios of TBUX and YAFFX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

TBUX vs. YAFFX - Drawdown Comparison

The maximum TBUX drawdown since its inception was -1.82%, smaller than the maximum YAFFX drawdown of -43.80%. Use the drawdown chart below to compare losses from any high point for TBUX and YAFFX.

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Drawdown Indicators

TBUXYAFFXDifference

Max Drawdown

Largest peak-to-trough decline

-1.82%

-43.80%

+41.98%

Max Drawdown (1Y)

Largest decline over 1 year

-0.10%

-17.08%

+16.98%

Max Drawdown (3Y)

Largest decline over 3 years

-0.33%

-18.88%

+18.55%

Max Drawdown (5Y)

Largest decline over 5 years

—

-21.31%

—

Max Drawdown (10Y)

Largest decline over 10 years

—

-30.62%

—

Current Drawdown

Current decline from peak

0.00%

-4.28%

+4.28%

Average Drawdown

Average peak-to-trough decline

-0.28%

-6.21%

+5.93%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.03%

4.77%

-4.74%

Volatility

TBUX vs. YAFFX - Volatility Comparison

The current volatility for T. Rowe Price Ultra Short-Term Bond ETF (TBUX) is 0.22%, while AMG Yacktman Focused Fund (YAFFX) has a volatility of 7.30%. This indicates that TBUX experiences smaller price fluctuations and is considered to be less risky than YAFFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

TBUXYAFFXDifference

Volatility (1M)

Calculated over the trailing 1-month period

0.22%

7.30%

-7.08%

Volatility (6M)

Calculated over the trailing 6-month period

0.46%

22.77%

-22.31%

Volatility (1Y)

Calculated over the trailing 1-year period

0.67%

22.71%

-22.04%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

1.07%

18.22%

-17.15%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

1.07%

16.59%

-15.52%

TBUX vs. YAFFX - Expense Ratio Comparison

TBUX has a 0.17% expense ratio, which is lower than YAFFX's 1.25% expense ratio.

Dividends

TBUX vs. YAFFX - Dividend Comparison

TBUX's dividend yield for the trailing twelve months is around 4.48%, while YAFFX has not paid dividends to shareholders.

PositionTTM20252024202320222021202020192018201720162015
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%0.00%
YAFFX
AMG Yacktman Focused Fund		0.00%0.00%18.44%4.42%7.60%4.70%11.87%15.84%22.15%11.82%11.81%24.36%

Frequently Asked Questions

TBUX and YAFFX have a correlation of 0.09, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

YAFFX has higher volatility (7.30%) compared to TBUX (0.22%). In terms of maximum drawdown, TBUX dropped -1.82% vs YAFFX's -43.80%.

TBUX currently has the higher Sharpe Ratio (7.19 vs 0.94), 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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