MWNIX vs. YASLX

Last updated Apr 1, 2026

Compare and contrast key facts about MFS International New Discovery Fund (MWNIX) and AMG Yacktman Special Opportunities Fund (YASLX).

MWNIX is managed by MFS. It was launched on Oct 8, 1997. YASLX is managed by AMG. It was launched on Jun 29, 2014.

Performance

MWNIX vs. YASLX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS International New Discovery Fund (MWNIX) and AMG Yacktman Special Opportunities Fund (YASLX). The values are adjusted to include any dividend payments, if applicable.

MWNIX vs. YASLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MWNIX MFS International New Discovery Fund	-4.10%	16.88%	0.90%	13.03%	-18.63%	5.06%	9.98%	22.85%	-10.41%	30.67%
YASLX AMG Yacktman Special Opportunities Fund	7.56%	6.27%	11.23%	3.65%	-13.59%	24.45%	12.82%	17.07%	-10.15%	34.85%

Returns By Period

In the year-to-date period, MWNIX achieves a -4.10% return, which is significantly lower than YASLX's 7.56% return. Over the past 10 years, MWNIX has underperformed YASLX with an annualized return of 5.54%, while YASLX has yielded a comparatively higher 10.68% annualized return.

MWNIX

• 1D: -0.25%
• 1M: -11.78%
• YTD: -4.10%
• 6M: -4.89%
• 1Y: 9.37%
• 3Y*: 6.45%
• 5Y*: 1.70%
• 10Y*: 5.54%

YASLX

• 1D: -0.17%
• 1M: -4.89%
• YTD: 7.56%
• 6M: 1.74%
• 1Y: 15.32%
• 3Y*: 9.73%
• 5Y*: 4.69%
• 10Y*: 10.68%

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

MWNIX vs. YASLX - Expense Ratio Comparison

MWNIX has a 1.03% expense ratio, which is lower than YASLX's 1.86% expense ratio.

YASLX

AMG Yacktman Special Opportunities Fund

MWNIX

MFS International New Discovery Fund

Return for Risk

MWNIX vs. YASLX — Risk / Return Rank

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

MWNIX

MWNIX Risk / Return Rank: 23
MWNIX Sharpe Ratio Rank: 28
MWNIX Sortino Ratio Rank: 23
MWNIX Omega Ratio Rank: 23
MWNIX Calmar Ratio Rank: 21
MWNIX Martin Ratio Rank: 22

YASLX

YASLX Risk / Return Rank: 54
YASLX Sharpe Ratio Rank: 63
YASLX Sortino Ratio Rank: 54
YASLX Omega Ratio Rank: 59
YASLX Calmar Ratio Rank: 59
YASLX Martin Ratio Rank: 35

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.

MWNIX vs. YASLX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS International New Discovery Fund (MWNIX) and AMG Yacktman Special Opportunities Fund (YASLX). 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.

	MWNIX	YASLX	Difference
Sharpe ratio Return per unit of total volatility	0.68	1.14	-0.45
Sortino ratio Return per unit of downside risk	0.93	1.48	-0.55
Omega ratio Gain probability vs. loss probability	1.13	1.23	-0.09
Calmar ratio Return relative to maximum drawdown	0.63	1.40	-0.78
Martin ratio Return relative to average drawdown	2.39	3.78	-1.38
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MWNIX vs. YASLX - Sharpe Ratio Comparison

The current MWNIX Sharpe Ratio is 0.68, which is lower than the YASLX Sharpe Ratio of 1.14. The chart below compares the historical Sharpe Ratios of MWNIX and YASLX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	MWNIX	YASLX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.68	1.14	-0.45
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.13	0.29	-0.16
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.40	0.72	-0.31
Sharpe Ratio (All Time) Calculated using the full available price history	0.56	0.57	-0.01

Correlation

The correlation between MWNIX and YASLX is 0.68, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

MWNIX vs. YASLX - Dividend Comparison

MWNIX's dividend yield for the trailing twelve months is around 3.38%, while YASLX has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MWNIX MFS International New Discovery Fund	3.38%	3.24%	7.61%	4.05%	5.68%	5.06%	3.90%	2.67%	6.68%	1.63%	1.09%	1.12%
YASLX AMG Yacktman Special Opportunities Fund	0.00%	0.00%	15.82%	8.97%	0.94%	3.85%	2.62%	12.95%	9.89%	4.86%	3.28%	4.59%

Drawdowns

MWNIX vs. YASLX - Drawdown Comparison

The maximum MWNIX drawdown since its inception was -58.38%, which is greater than YASLX's maximum drawdown of -38.91%. Use the drawdown chart below to compare losses from any high point for MWNIX and YASLX.

Drawdown Indicators

	MWNIX	YASLX	Difference
Max Drawdown Largest peak-to-trough decline	-58.38%	-38.91%	-19.47%
Max Drawdown (1Y) Largest decline over 1 year	-11.78%	-10.18%	-1.60%
Max Drawdown (5Y) Largest decline over 5 years	-33.67%	-27.74%	-5.93%
Max Drawdown (10Y) Largest decline over 10 years	-34.72%	-38.91%	+4.19%
Current Drawdown Current decline from peak	-11.78%	-4.89%	-6.89%
Average Drawdown Average peak-to-trough decline	-9.61%	-8.34%	-1.27%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.09%	3.78%	-0.69%

Volatility

MWNIX vs. YASLX - Volatility Comparison

MFS International New Discovery Fund (MWNIX) has a higher volatility of 5.09% compared to AMG Yacktman Special Opportunities Fund (YASLX) at 3.18%. This indicates that MWNIX's price experiences larger fluctuations and is considered to be riskier than YASLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MWNIX	YASLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.09%	3.18%	+1.91%
Volatility (6M) Calculated over the trailing 6-month period	8.21%	8.66%	-0.45%
Volatility (1Y) Calculated over the trailing 1-year period	12.11%	12.99%	-0.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.02%	16.32%	-3.30%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.90%	15.00%	-1.10%