GWMIX vs. YFSIX

Last updated Jun 4, 2026

GWMIX (AMG GW&K Municipal Bond Fund) and YFSIX (AMG Yacktman Global Fund) are both mutual funds - GWMIX is a Municipal Bonds fund managed by AMG, while YFSIX is a Large Cap Blend Equities fund managed by AMG. Over the past 5 years, GWMIX returned 1.68%/yr vs 9.09%/yr for YFSIX. At a 0.04 correlation, their price movements are largely independent. GWMIX charges 0.39%/yr vs 0.95%/yr for YFSIX.

Performance

GWMIX vs. YFSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AMG GW&K Municipal Bond Fund (GWMIX) and AMG Yacktman Global Fund (YFSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, GWMIX achieves a 1.01% return, which is significantly lower than YFSIX's 27.94% return.

GWMIX

• 1D: 0.26%
• 1M: 0.78%
• YTD: 1.01%
• 6M: 1.52%
• 1Y: 7.61%
• 3Y*: 3.61%
• 5Y*: 1.68%
• 10Y*: 2.35%

YFSIX

• 1D: -0.24%
• 1M: 5.24%
• YTD: 27.94%
• 6M: 15.38%
• 1Y: 32.86%
• 3Y*: 17.40%
• 5Y*: 9.09%
• 10Y*: —

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

GWMIX vs. YFSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
GWMIX AMG GW&K Municipal Bond Fund	1.01%	5.52%	0.04%	6.04%	-7.45%	4.19%	4.70%	7.91%	0.87%	3.92%
YFSIX AMG Yacktman Global Fund	27.94%	14.91%	-0.34%	16.64%	-9.15%	13.13%	18.46%	24.40%	2.18%	20.95%

Correlation

The correlation between GWMIX and YFSIX is 0.11, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.11
Correlation (3Y) Calculated over the trailing 3-year period	0.15
Correlation (5Y) Calculated over the trailing 5-year period	0.13
Correlation (All Time) Calculated using the full available price history since Feb 3, 2017	0.04

The correlation between GWMIX and YFSIX shifts across timeframes, from 0.04 (all time) to 0.15 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

GWMIX vs. YFSIX — Risk / Return Rank

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

GWMIX

GWMIX Risk / Return Rank: 63
GWMIX Sharpe Ratio Rank: 86
GWMIX Sortino Ratio Rank: 83
GWMIX Omega Ratio Rank: 93
GWMIX Calmar Ratio Rank: 27
GWMIX Martin Ratio Rank: 25

YFSIX

YFSIX Risk / Return Rank: 32
YFSIX Sharpe Ratio Rank: 29
YFSIX Sortino Ratio Rank: 17
YFSIX Omega Ratio Rank: 47
YFSIX Calmar Ratio Rank: 37
YFSIX Martin Ratio Rank: 32

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.

GWMIX vs. YFSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AMG GW&K Municipal Bond Fund (GWMIX) and AMG Yacktman Global Fund (YFSIX). 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.

	GWMIX	YFSIX	Difference
Sharpe ratio: Return per unit of total volatility	2.80	1.54	+1.27
Sortino ratio: Return per unit of downside risk	3.91	1.70	+2.21
Omega ratio: Gain probability vs. loss probability	1.71	1.37	+0.33
Calmar ratio: Return relative to maximum drawdown	1.95	2.31	-0.36
Martin ratio: Return relative to average drawdown	6.14	7.30	-1.16
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GWMIX vs. YFSIX - Sharpe Ratio Comparison

The current GWMIX Sharpe Ratio is 2.80, which is higher than the YFSIX Sharpe Ratio of 1.54. The chart below compares the historical Sharpe Ratios of GWMIX and YFSIX, 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

	GWMIX	YFSIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.80	1.54	+1.27
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.41	0.59	-0.19
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.59	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.00	0.82	+0.18

Drawdowns

GWMIX vs. YFSIX - Drawdown Comparison

The maximum GWMIX drawdown since its inception was -12.27%, smaller than the maximum YFSIX drawdown of -35.10%. Use the drawdown chart below to compare losses from any high point for GWMIX and YFSIX.

Drawdown Indicators

	GWMIX	YFSIX	Difference
Max Drawdown Largest peak-to-trough decline	-12.27%	-35.10%	+22.83%
Max Drawdown (1Y) Largest decline over 1 year	-3.89%	-14.20%	+10.31%
Max Drawdown (3Y) Largest decline over 3 years	-5.41%	-14.20%	+8.79%
Max Drawdown (5Y) Largest decline over 5 years	-12.27%	-25.14%	+12.87%
Max Drawdown (10Y) Largest decline over 10 years	-12.27%	—	—
Current Drawdown Current decline from peak	-1.60%	-0.24%	-1.36%
Average Drawdown Average peak-to-trough decline	-1.98%	-4.90%	+2.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.23%	4.47%	-3.24%

Volatility

GWMIX vs. YFSIX - Volatility Comparison

The current volatility for AMG GW&K Municipal Bond Fund (GWMIX) is 1.09%, while AMG Yacktman Global Fund (YFSIX) has a volatility of 5.82%. This indicates that GWMIX experiences smaller price fluctuations and is considered to be less risky than YFSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GWMIX	YFSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.09%	5.82%	-4.73%
Volatility (6M) Calculated over the trailing 6-month period	2.23%	20.77%	-18.54%
Volatility (1Y) Calculated over the trailing 1-year period	2.70%	21.35%	-18.65%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.13%	15.39%	-11.26%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.00%	16.25%	-12.25%

GWMIX vs. YFSIX - Expense Ratio Comparison

GWMIX has a 0.39% expense ratio, which is lower than YFSIX's 0.95% expense ratio.

Dividends

GWMIX vs. YFSIX - Dividend Comparison

GWMIX's dividend yield for the trailing twelve months is around 2.71%, while YFSIX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GWMIX AMG GW&K Municipal Bond Fund	2.71%	2.86%	2.60%	2.11%	1.89%	5.75%	1.82%	2.19%	1.88%	1.64%	3.38%	3.01%
YFSIX AMG Yacktman Global Fund	0.00%	0.00%	8.68%	8.02%	4.32%	8.18%	4.76%	6.59%	0.71%	2.63%	0.00%	0.00%

Frequently Asked Questions

Can I hold both GWMIX and YFSIX in my portfolio?

GWMIX and YFSIX have a correlation of 0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, GWMIX or YFSIX?

YFSIX has higher volatility (5.82%) compared to GWMIX (1.09%). In terms of maximum drawdown, GWMIX dropped -12.27% vs YFSIX's -35.10%.

Which has better risk-adjusted returns?

GWMIX currently has the higher Sharpe Ratio (2.80 vs 1.54), 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.