YAFFX vs. BRWIX

Last updated Jun 4, 2026

YAFFX (AMG Yacktman Focused Fund) and BRWIX (AMG Boston Common Global Impact Fund) are both mutual funds - YAFFX is a Large Cap Value Equities fund managed by AMG, while BRWIX is a Large Cap Growth Equities fund managed by AMG. Over the past 10 years, YAFFX returned 12.89%/yr vs 11.27%/yr for BRWIX. A 0.68 correlation means they provide meaningful diversification when combined. YAFFX charges 1.25%/yr vs 0.93%/yr for BRWIX.

Performance

YAFFX vs. BRWIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AMG Yacktman Focused Fund (YAFFX) and AMG Boston Common Global Impact Fund (BRWIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, YAFFX achieves a 30.77% return, which is significantly higher than BRWIX's 16.32% return. Over the past 10 years, YAFFX has outperformed BRWIX with an annualized return of 12.89%, while BRWIX has yielded a comparatively lower 11.27% annualized return.

YAFFX

• 1D: -0.48%
• 1M: 8.70%
• YTD: 30.77%
• 6M: 14.70%
• 1Y: 28.89%
• 3Y*: 17.76%
• 5Y*: 10.40%
• 10Y*: 12.89%

BRWIX

• 1D: 0.35%
• 1M: 5.54%
• YTD: 16.32%
• 6M: 17.79%
• 1Y: 35.31%
• 3Y*: 14.78%
• 5Y*: 5.42%
• 10Y*: 11.27%

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

YAFFX vs. BRWIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
YAFFX AMG Yacktman Focused Fund	30.77%	3.89%	9.30%	16.53%	-8.20%	16.48%	17.22%	19.21%	2.99%	20.07%
BRWIX AMG Boston Common Global Impact Fund	16.32%	21.16%	3.08%	13.75%	-25.35%	12.38%	29.77%	27.98%	-3.67%	23.65%

Correlation

The correlation between YAFFX and BRWIX is 0.53, 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	0.53
Correlation (3Y) Calculated over the trailing 3-year period	0.68
Correlation (5Y) Calculated over the trailing 5-year period	0.75
Correlation (10Y) Calculated over the trailing 10-year period	0.68
Correlation (All Time) Calculated using the full available price history since May 1, 1997	0.68

The correlation between YAFFX and BRWIX shifts across timeframes, from 0.53 (1 year) to 0.75 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

YAFFX vs. BRWIX — Risk / Return Rank

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

YAFFX

YAFFX Risk / Return Rank: 25
YAFFX Sharpe Ratio Rank: 21
YAFFX Sortino Ratio Rank: 13
YAFFX Omega Ratio Rank: 44
YAFFX Calmar Ratio Rank: 21
YAFFX Martin Ratio Rank: 25

BRWIX

BRWIX Risk / Return Rank: 70
BRWIX Sharpe Ratio Rank: 75
BRWIX Sortino Ratio Rank: 69
BRWIX Omega Ratio Rank: 63
BRWIX Calmar Ratio Rank: 68
BRWIX Martin Ratio Rank: 76

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.

YAFFX vs. BRWIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AMG Yacktman Focused Fund (YAFFX) and AMG Boston Common Global Impact Fund (BRWIX). 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.

	YAFFX	BRWIX	Difference
Sharpe ratio: Return per unit of total volatility	1.32	2.51	-1.19
Sortino ratio: Return per unit of downside risk	1.46	3.47	-2.01
Omega ratio: Gain probability vs. loss probability	1.36	1.44	-0.08
Calmar ratio: Return relative to maximum drawdown	1.71	3.18	-1.47
Martin ratio: Return relative to average drawdown	6.17	14.44	-8.27
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

YAFFX vs. BRWIX - Sharpe Ratio Comparison

The current YAFFX Sharpe Ratio is 1.32, which is lower than the BRWIX Sharpe Ratio of 2.51. The chart below compares the historical Sharpe Ratios of YAFFX and BRWIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	YAFFX	BRWIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.32	2.51	-1.19
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.58	0.30	+0.28
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.78	0.56	+0.22
Sharpe Ratio (All Time) Calculated using the full available price history	0.62	0.35	+0.27

Drawdowns

YAFFX vs. BRWIX - Drawdown Comparison

The maximum YAFFX drawdown since its inception was -43.80%, smaller than the maximum BRWIX drawdown of -54.49%. Use the drawdown chart below to compare losses from any high point for YAFFX and BRWIX.

Drawdown Indicators

	YAFFX	BRWIX	Difference
Max Drawdown Largest peak-to-trough decline	-43.80%	-54.49%	+10.69%
Max Drawdown (1Y) Largest decline over 1 year	-17.08%	-11.28%	-5.80%
Max Drawdown (3Y) Largest decline over 3 years	-18.88%	-20.82%	+1.94%
Max Drawdown (5Y) Largest decline over 5 years	-21.31%	-36.71%	+15.40%
Max Drawdown (10Y) Largest decline over 10 years	-30.62%	-36.71%	+6.09%
Current Drawdown Current decline from peak	-0.48%	0.00%	-0.48%
Average Drawdown Average peak-to-trough decline	-6.21%	-17.60%	+11.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.70%	2.48%	+2.22%

Volatility

YAFFX vs. BRWIX - Volatility Comparison

AMG Yacktman Focused Fund (YAFFX) has a higher volatility of 6.13% compared to AMG Boston Common Global Impact Fund (BRWIX) at 4.64%. This indicates that YAFFX's price experiences larger fluctuations and is considered to be riskier than BRWIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	YAFFX	BRWIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.13%	4.64%	+1.49%
Volatility (6M) Calculated over the trailing 6-month period	22.29%	11.61%	+10.68%
Volatility (1Y) Calculated over the trailing 1-year period	22.19%	14.31%	+7.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.10%	18.13%	-0.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.53%	20.16%	-3.63%

YAFFX vs. BRWIX - Expense Ratio Comparison

YAFFX has a 1.25% expense ratio, which is higher than BRWIX's 0.93% expense ratio.

Dividends

YAFFX vs. BRWIX - Dividend Comparison

YAFFX has not paid dividends to shareholders, while BRWIX's dividend yield for the trailing twelve months is around 0.64%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BRWIX AMG Boston Common Global Impact Fund	0.64%	0.75%	1.17%	0.63%	0.48%	45.72%	14.71%	10.30%	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

Can I hold both YAFFX and BRWIX in my portfolio?

YAFFX and BRWIX have a correlation of 0.53, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, YAFFX or BRWIX?

YAFFX has higher volatility (6.13%) compared to BRWIX (4.64%). In terms of maximum drawdown, YAFFX dropped -43.80% vs BRWIX's -54.49%.

Which has better risk-adjusted returns?

BRWIX currently has the higher Sharpe Ratio (2.51 vs 1.32), 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.