MWEBX vs. MIEIX

Last updated Jun 5, 2026

MWEBX (MFS Global Equity Fund) and MIEIX (MFS International Equity Fund Class R6) are both mutual funds - MWEBX is a Global Equities fund managed by MFS, while MIEIX is a Foreign Large Cap Equities fund managed by MFS. Over the past 10 years, MWEBX returned 9.14%/yr vs 9.75%/yr for MIEIX. Their correlation of 0.91 suggests significant overlap in exposure. MWEBX charges 1.90%/yr vs 0.68%/yr for MIEIX.

Performance

MWEBX vs. MIEIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Global Equity Fund (MWEBX) and MFS International Equity Fund Class R6 (MIEIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MWEBX achieves a -0.79% return, which is significantly lower than MIEIX's 2.51% return. Over the past 10 years, MWEBX has underperformed MIEIX with an annualized return of 9.14%, while MIEIX has yielded a comparatively higher 9.75% annualized return.

MWEBX

• 1D: -1.17%
• 1M: 1.50%
• YTD: -0.79%
• 6M: 0.95%
• 1Y: 5.28%
• 3Y*: 13.09%
• 5Y*: 5.50%
• 10Y*: 9.14%

MIEIX

• 1D: -0.72%
• 1M: 2.46%
• YTD: 2.51%
• 6M: 4.53%
• 1Y: 8.73%
• 3Y*: 11.81%
• 5Y*: 6.93%
• 10Y*: 9.75%

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

MWEBX vs. MIEIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MWEBX MFS Global Equity Fund	-0.79%	12.70%	22.16%	13.48%	-18.53%	16.15%	13.03%	29.23%	-10.51%	22.63%
MIEIX MFS International Equity Fund Class R6	2.51%	23.22%	4.13%	19.06%	-14.82%	15.13%	11.11%	28.42%	-10.66%	28.01%

Correlation

The correlation between MWEBX and MIEIX is 0.87, 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	0.87
Correlation (3Y) Calculated over the trailing 3-year period	0.87
Correlation (5Y) Calculated over the trailing 5-year period	0.89
Correlation (10Y) Calculated over the trailing 10-year period	0.90
Correlation (All Time) Calculated using the full available price history since Jan 31, 1996	0.91

The correlation between MWEBX and MIEIX has been stable across timeframes, ranging from 0.87 to 0.91 - a consistent structural relationship.

Return for Risk

MWEBX vs. MIEIX — Risk / Return Rank

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

MWEBX

MWEBX Risk / Return Rank: 6
MWEBX Sharpe Ratio Rank: 6
MWEBX Sortino Ratio Rank: 7
MWEBX Omega Ratio Rank: 6
MWEBX Calmar Ratio Rank: 6
MWEBX Martin Ratio Rank: 6

MIEIX

MIEIX Risk / Return Rank: 9
MIEIX Sharpe Ratio Rank: 9
MIEIX Sortino Ratio Rank: 9
MIEIX Omega Ratio Rank: 9
MIEIX Calmar Ratio Rank: 9
MIEIX 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.

MWEBX vs. MIEIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Global Equity Fund (MWEBX) and MFS International Equity Fund Class R6 (MIEIX). 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.

	MWEBX	MIEIX	Difference
Sharpe ratio: Return per unit of total volatility	0.48	0.73	-0.25
Sortino ratio: Return per unit of downside risk	0.78	1.10	-0.33
Omega ratio: Gain probability vs. loss probability	1.09	1.14	-0.05
Calmar ratio: Return relative to maximum drawdown	0.45	0.85	-0.40
Martin ratio: Return relative to average drawdown	1.57	2.98	-1.42
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MWEBX vs. MIEIX - Sharpe Ratio Comparison

The current MWEBX Sharpe Ratio is 0.48, which is lower than the MIEIX Sharpe Ratio of 0.73. The chart below compares the historical Sharpe Ratios of MWEBX and MIEIX, 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

	MWEBX	MIEIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.48	0.73	-0.25
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.32	0.45	-0.13
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.53	0.61	-0.08
Sharpe Ratio (All Time) Calculated using the full available price history	0.53	0.46	+0.06

Drawdowns

MWEBX vs. MIEIX - Drawdown Comparison

The maximum MWEBX drawdown since its inception was -52.31%, roughly equal to the maximum MIEIX drawdown of -53.13%. Use the drawdown chart below to compare losses from any high point for MWEBX and MIEIX.

Drawdown Indicators

	MWEBX	MIEIX	Difference
Max Drawdown Largest peak-to-trough decline	-52.31%	-53.13%	+0.82%
Max Drawdown (1Y) Largest decline over 1 year	-13.43%	-11.26%	-2.17%
Max Drawdown (3Y) Largest decline over 3 years	-15.10%	-13.43%	-1.67%
Max Drawdown (5Y) Largest decline over 5 years	-28.70%	-28.07%	-0.63%
Max Drawdown (10Y) Largest decline over 10 years	-33.91%	-31.35%	-2.56%
Current Drawdown Current decline from peak	-3.47%	-2.19%	-1.28%
Average Drawdown Average peak-to-trough decline	-7.89%	-8.98%	+1.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.85%	3.20%	+0.65%

Volatility

MWEBX vs. MIEIX - Volatility Comparison

MFS Global Equity Fund (MWEBX) has a higher volatility of 3.68% compared to MFS International Equity Fund Class R6 (MIEIX) at 3.40%. This indicates that MWEBX's price experiences larger fluctuations and is considered to be riskier than MIEIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MWEBX	MIEIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.68%	3.40%	+0.28%
Volatility (6M) Calculated over the trailing 6-month period	9.66%	10.23%	-0.57%
Volatility (1Y) Calculated over the trailing 1-year period	12.56%	13.15%	-0.59%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.04%	15.34%	+1.70%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.17%	15.94%	+1.23%

MWEBX vs. MIEIX - Expense Ratio Comparison

MWEBX has a 1.90% expense ratio, which is higher than MIEIX's 0.68% expense ratio.

Dividends

MWEBX vs. MIEIX - Dividend Comparison

MWEBX's dividend yield for the trailing twelve months is around 24.32%, more than MIEIX's 2.61% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MIEIX MFS International Equity Fund Class R6	2.61%	2.68%	1.47%	1.67%	1.26%	5.40%	1.00%	3.12%	1.63%	1.85%	1.78%	1.71%
MWEBX MFS Global Equity Fund	24.32%	24.13%	28.50%	8.83%	9.68%	5.33%	2.09%	1.46%	5.42%	2.16%	0.85%	1.19%

Frequently Asked Questions

Can I hold both MWEBX and MIEIX in my portfolio?

MWEBX and MIEIX have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MWEBX or MIEIX?

MWEBX has higher volatility (3.68%) compared to MIEIX (3.40%). In terms of maximum drawdown, MWEBX dropped -52.31% vs MIEIX's -53.13%.

Which has better risk-adjusted returns?

MIEIX currently has the higher Sharpe Ratio (0.73 vs 0.48), 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.