MGRAX vs. MIEIX

Last updated Jun 4, 2026

MGRAX (MFS International Growth Fund) and MIEIX (MFS International Equity Fund Class R6) are both Foreign Large Cap Equities funds from MFS. Over the past 10 years, MGRAX returned 9.67%/yr vs 9.82%/yr for MIEIX. With a 0.96 correlation, they move nearly in lockstep. MGRAX charges 1.06%/yr vs 0.68%/yr for MIEIX.

Performance

MGRAX vs. MIEIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS International Growth Fund (MGRAX) 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, MGRAX achieves a 4.03% return, which is significantly higher than MIEIX's 3.25% return. Both investments have delivered pretty close results over the past 10 years, with MGRAX having a 9.67% annualized return and MIEIX not far ahead at 9.82%.

MGRAX

• 1D: 0.45%
• 1M: 3.74%
• YTD: 4.03%
• 6M: 4.95%
• 1Y: 11.44%
• 3Y*: 12.20%
• 5Y*: 6.15%
• 10Y*: 9.67%

MIEIX

• 1D: 0.17%
• 1M: 3.66%
• YTD: 3.25%
• 6M: 5.80%
• 1Y: 10.30%
• 3Y*: 12.08%
• 5Y*: 7.26%
• 10Y*: 9.82%

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

MGRAX vs. MIEIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MGRAX MFS International Growth Fund	4.03%	20.73%	8.82%	14.54%	-15.31%	9.20%	15.45%	26.83%	-9.09%	32.15%
MIEIX MFS International Equity Fund Class R6	3.25%	23.22%	4.13%	19.06%	-14.82%	15.13%	11.11%	28.42%	-10.66%	28.01%

Correlation

The correlation between MGRAX and MIEIX is 0.92, 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	0.92
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (10Y) Calculated over the trailing 10-year period	0.95
Correlation (All Time) Calculated using the full available price history since Jan 31, 1996	0.96

The correlation between MGRAX and MIEIX has been stable across timeframes, ranging from 0.92 to 0.96 - a consistent structural relationship.

Return for Risk

MGRAX vs. MIEIX — Risk / Return Rank

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

MGRAX

MGRAX Risk / Return Rank: 10
MGRAX Sharpe Ratio Rank: 10
MGRAX Sortino Ratio Rank: 10
MGRAX Omega Ratio Rank: 10
MGRAX Calmar Ratio Rank: 9
MGRAX Martin Ratio Rank: 10

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: 8
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.

MGRAX vs. MIEIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS International Growth Fund (MGRAX) 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.

	MGRAX	MIEIX	Difference
Sharpe ratio Return per unit of total volatility	0.82	0.73	+0.08
Sortino ratio Return per unit of downside risk	1.22	1.11	+0.11
Omega ratio Gain probability vs. loss probability	1.15	1.14	+0.01
Calmar ratio Return relative to maximum drawdown	0.87	0.85	+0.02
Martin ratio Return relative to average drawdown	2.93	3.00	-0.07
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MGRAX vs. MIEIX - Sharpe Ratio Comparison

The current MGRAX Sharpe Ratio is 0.82, which is comparable to the MIEIX Sharpe Ratio of 0.73. The chart below compares the historical Sharpe Ratios of MGRAX 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

	MGRAX	MIEIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.82	0.73	+0.08
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.40	0.48	-0.08
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.62	0.62	0.00
Sharpe Ratio (All Time) Calculated using the full available price history	0.39	0.46	-0.08

Drawdowns

MGRAX vs. MIEIX - Drawdown Comparison

The maximum MGRAX drawdown since its inception was -55.29%, roughly equal to the maximum MIEIX drawdown of -53.13%. Use the drawdown chart below to compare losses from any high point for MGRAX and MIEIX.

Drawdown Indicators

	MGRAX	MIEIX	Difference
Max Drawdown Largest peak-to-trough decline	-55.29%	-53.13%	-2.16%
Max Drawdown (1Y) Largest decline over 1 year	-12.42%	-11.26%	-1.16%
Max Drawdown (3Y) Largest decline over 3 years	-13.66%	-13.43%	-0.23%
Max Drawdown (5Y) Largest decline over 5 years	-30.58%	-28.07%	-2.51%
Max Drawdown (10Y) Largest decline over 10 years	-30.58%	-31.35%	+0.77%
Current Drawdown Current decline from peak	-2.79%	-1.48%	-1.31%
Average Drawdown Average peak-to-trough decline	-10.86%	-8.98%	-1.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.68%	3.19%	+0.49%

Volatility

MGRAX vs. MIEIX - Volatility Comparison

MFS International Growth Fund (MGRAX) has a higher volatility of 3.94% compared to MFS International Equity Fund Class R6 (MIEIX) at 3.45%. This indicates that MGRAX'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

	MGRAX	MIEIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.94%	3.45%	+0.49%
Volatility (6M) Calculated over the trailing 6-month period	10.71%	10.21%	+0.50%
Volatility (1Y) Calculated over the trailing 1-year period	13.27%	13.17%	+0.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.56%	15.34%	+0.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.73%	15.94%	-0.21%

MGRAX vs. MIEIX - Expense Ratio Comparison

MGRAX has a 1.06% expense ratio, which is higher than MIEIX's 0.68% expense ratio.

Dividends

MGRAX vs. MIEIX - Dividend Comparison

MGRAX's dividend yield for the trailing twelve months is around 5.15%, more than MIEIX's 2.59% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MGRAX MFS International Growth Fund	5.15%	5.35%	5.99%	2.56%	2.69%	6.62%	0.56%	1.42%	3.82%	2.26%	1.01%	1.06%
MIEIX MFS International Equity Fund Class R6	2.59%	2.68%	1.47%	1.67%	1.26%	5.40%	1.00%	3.12%	1.63%	1.85%	1.78%	1.71%

Frequently Asked Questions

Can I hold both MGRAX and MIEIX in my portfolio?

With a correlation of 0.92, MGRAX and MIEIX 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, MGRAX or MIEIX?

MGRAX has higher volatility (3.94%) compared to MIEIX (3.45%). In terms of maximum drawdown, MGRAX dropped -55.29% vs MIEIX's -53.13%.

Which has better risk-adjusted returns?

MGRAX currently has the higher Sharpe Ratio (0.81 vs 0.73), 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.