YACKX vs. YAFFX

Last updated Jun 4, 2026

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

Performance

YACKX vs. YAFFX - Performance Comparison

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

Returns By Period

In the year-to-date period, YACKX achieves a 19.98% return, which is significantly lower than YAFFX's 30.77% return. Both investments have delivered pretty close results over the past 10 years, with YACKX having a 12.64% annualized return and YAFFX not far ahead at 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%

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%

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

YACKX vs. YAFFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
YACKX AMG Yacktman Fund	19.98%	1.34%	13.15%	15.46%	-7.50%	19.66%	15.25%	27.49%	2.79%	18.25%
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%

Correlation

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

Return for Risk

YACKX vs. YAFFX — Risk / Return Rank

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

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

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

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.

YACKX vs. YAFFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AMG Yacktman Fund (YACKX) 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.

	YACKX	YAFFX	Difference
Sharpe ratio: Return per unit of total volatility	0.86	1.32	-0.45
Sortino ratio: Return per unit of downside risk	1.00	1.46	-0.46
Omega ratio: Gain probability vs. loss probability	1.27	1.36	-0.09
Calmar ratio: Return relative to maximum drawdown	1.03	1.71	-0.68
Martin ratio: Return relative to average drawdown	2.99	6.17	-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.

YACKX vs. YAFFX - Sharpe Ratio Comparison

The current YACKX Sharpe Ratio is 0.86, which is lower than the YAFFX Sharpe Ratio of 1.32. The chart below compares the historical Sharpe Ratios of YACKX 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.

Sharpe Ratios by Period

	YACKX	YAFFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.86	1.32	-0.45
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.53	0.58	-0.05
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.79	0.78	0.00
Sharpe Ratio (All Time) Calculated using the full available price history	0.71	0.62	+0.09

Drawdowns

YACKX vs. YAFFX - Drawdown Comparison

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

Drawdown Indicators

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

Volatility

YACKX vs. YAFFX - Volatility Comparison

The current volatility for AMG Yacktman Fund (YACKX) is 4.31%, while AMG Yacktman Focused Fund (YAFFX) has a volatility of 6.13%. This indicates that YACKX 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.

Volatility by Period

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

YACKX vs. YAFFX - Expense Ratio Comparison

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

Dividends

YACKX vs. YAFFX - Dividend Comparison

Neither YACKX nor YAFFX 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 YACKX and YAFFX in my portfolio?

With a correlation of 0.93, YACKX and YAFFX 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, YACKX or YAFFX?

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

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.