YAFFX vs. YACKX

Last updated Jun 4, 2026

YAFFX (AMG Yacktman Focused Fund) and YACKX (AMG Yacktman Fund) are both Large Cap Value Equities funds from AMG. Over the past 10 years, YAFFX returned 12.89%/yr vs 12.64%/yr for YACKX. With a 0.97 correlation, they move nearly in lockstep. YAFFX charges 1.25%/yr vs 0.71%/yr for YACKX.

Performance

YAFFX vs. YACKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AMG Yacktman Focused Fund (YAFFX) and AMG Yacktman Fund (YACKX). 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 YACKX's 19.98% return. Both investments have delivered pretty close results over the past 10 years, with YAFFX having a 12.89% annualized return and YACKX not far behind at 12.64%.

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%

YACKX

• 1D: -0.44%
• 1M: 5.67%
• YTD: 19.98%
• 6M: 5.18%
• 1Y: 16.49%
• 3Y*: 15.00%
• 5Y*: 8.95%
• 10Y*: 12.64%

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

YAFFX vs. YACKX - 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%
YACKX AMG Yacktman Fund	19.98%	1.34%	13.15%	15.46%	-7.50%	19.66%	15.25%	27.49%	2.79%	18.25%

Correlation

The correlation between YAFFX and YACKX is 0.93, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.93
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (10Y) Calculated over the trailing 10-year period	0.97
Correlation (All Time) Calculated using the full available price history since May 1, 1997	0.97

The correlation between YAFFX and YACKX has been stable across timeframes, ranging from 0.93 to 0.97 - a consistent structural relationship.

Return for Risk

YAFFX vs. YACKX — 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

YACKX

YACKX Risk / Return Rank: 13
YACKX Sharpe Ratio Rank: 11
YACKX Sortino Ratio Rank: 8
YACKX Omega Ratio Rank: 27
YACKX Calmar Ratio Rank: 10
YACKX Martin Ratio Rank: 10

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. YACKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AMG Yacktman Focused Fund (YAFFX) and AMG Yacktman Fund (YACKX). 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	YACKX	Difference
Sharpe ratio: Return per unit of total volatility	1.32	0.86	+0.45
Sortino ratio: Return per unit of downside risk	1.46	1.00	+0.46
Omega ratio: Gain probability vs. loss probability	1.36	1.27	+0.09
Calmar ratio: Return relative to maximum drawdown	1.71	1.03	+0.68
Martin ratio: Return relative to average drawdown	6.17	2.99	+3.18
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. YACKX - Sharpe Ratio Comparison

The current YAFFX Sharpe Ratio is 1.32, which is higher than the YACKX Sharpe Ratio of 0.86. The chart below compares the historical Sharpe Ratios of YAFFX and YACKX, 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	YACKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.32	0.86	+0.45
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.58	0.53	+0.05
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.78	0.79	0.00
Sharpe Ratio (All Time) Calculated using the full available price history	0.62	0.71	-0.09

Drawdowns

YAFFX vs. YACKX - Drawdown Comparison

The maximum YAFFX drawdown since its inception was -43.80%, smaller than the maximum YACKX drawdown of -46.65%. Use the drawdown chart below to compare losses from any high point for YAFFX and YACKX.

Drawdown Indicators

	YAFFX	YACKX	Difference
Max Drawdown Largest peak-to-trough decline	-43.80%	-46.65%	+2.85%
Max Drawdown (1Y) Largest decline over 1 year	-17.08%	-16.30%	-0.78%
Max Drawdown (3Y) Largest decline over 3 years	-18.88%	-18.30%	-0.58%
Max Drawdown (5Y) Largest decline over 5 years	-21.31%	-19.86%	-1.45%
Max Drawdown (10Y) Largest decline over 10 years	-30.62%	-30.93%	+0.31%
Current Drawdown Current decline from peak	-0.48%	-0.44%	-0.04%
Average Drawdown Average peak-to-trough decline	-6.21%	-5.27%	-0.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.70%	5.57%	-0.87%

Volatility

YAFFX vs. YACKX - Volatility Comparison

AMG Yacktman Focused Fund (YAFFX) has a higher volatility of 6.13% compared to AMG Yacktman Fund (YACKX) at 4.31%. This indicates that YAFFX's price experiences larger fluctuations and is considered to be riskier than YACKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	YAFFX	YACKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.13%	4.31%	+1.82%
Volatility (6M) Calculated over the trailing 6-month period	22.29%	19.61%	+2.68%
Volatility (1Y) Calculated over the trailing 1-year period	22.19%	19.37%	+2.82%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.10%	17.10%	+1.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.53%	16.15%	+0.38%

YAFFX vs. YACKX - Expense Ratio Comparison

YAFFX has a 1.25% expense ratio, which is higher than YACKX's 0.71% expense ratio.

Dividends

YAFFX vs. YACKX - Dividend Comparison

Neither YAFFX nor YACKX has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
YACKX AMG Yacktman Fund	0.00%	0.00%	17.32%	4.39%	7.35%	3.72%	10.82%	16.84%	23.06%	10.67%	8.57%	13.66%
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 YACKX in my portfolio?

With a correlation of 0.93, YAFFX and YACKX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, YAFFX or YACKX?

YAFFX has higher volatility (6.13%) compared to YACKX (4.31%). In terms of maximum drawdown, YAFFX dropped -43.80% vs YACKX's -46.65%.

Which has better risk-adjusted returns?

YAFFX currently has the higher Sharpe Ratio (1.32 vs 0.86), 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.