DIAX vs. MIEKX

Last updated Jun 5, 2026

DIAX (Dimensional International Core Equity Fund) and MIEKX (MFS International Equity Fund Class R6) are both International Equity funds. A 0.51 correlation means they provide meaningful diversification when combined. DIAX charges 0.01%/yr vs 0.73%/yr for MIEKX.

Performance

DIAX vs. MIEKX - Performance Comparison

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

Returns By Period

DIAX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

MIEKX

• 1D: -0.72%
• 1M: 2.47%
• YTD: 2.49%
• 6M: 4.50%
• 1Y: 8.66%
• 3Y*: 11.70%
• 5Y*: —
• 10Y*: —

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

DIAX vs. MIEKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
DIAX Dimensional International Core Equity Fund	-5.70%	10.13%	16.51%	2.71%
MIEKX MFS International Equity Fund Class R6	2.49%	23.12%	4.02%	5.55%

Correlation

The correlation between DIAX and MIEKX is 0.50, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.50
Correlation (3Y) Calculated over the trailing 3-year period	0.50
Correlation (All Time) Calculated using the full available price history since May 18, 2023	0.51

The correlation between DIAX and MIEKX has been stable across timeframes, ranging from 0.50 to 0.51 - a consistent structural relationship.

Return for Risk

DIAX vs. MIEKX — Risk / Return Rank

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

MIEKX

MIEKX Risk / Return Rank: 10
MIEKX Sharpe Ratio Rank: 10
MIEKX Sortino Ratio Rank: 9
MIEKX Omega Ratio Rank: 9
MIEKX Calmar Ratio Rank: 9
MIEKX Martin Ratio Rank: 11

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.

DIAX vs. MIEKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Dimensional International Core Equity Fund (DIAX) and MFS International Equity Fund Class R6 (MIEKX). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	DIAX	MIEKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	0.72	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.86	—

Drawdowns

Drawdown Indicators

	DIAX	MIEKX	Difference
Max Drawdown Largest peak-to-trough decline	—	-13.42%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-11.30%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-13.42%	—
Current Drawdown Current decline from peak	—	-2.21%	—
Average Drawdown Average peak-to-trough decline	—	-2.84%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	3.20%	—

Volatility

Volatility by Period

	DIAX	MIEKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	3.41%	—
Volatility (6M) Calculated over the trailing 6-month period	—	10.23%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	13.14%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	13.23%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	13.23%	—

DIAX vs. MIEKX - Expense Ratio Comparison

DIAX has a 0.01% expense ratio, which is lower than MIEKX's 0.73% expense ratio.

Dividends

DIAX vs. MIEKX - Dividend Comparison

DIAX's dividend yield for the trailing twelve months is around 8.54%, more than MIEKX's 2.54% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DIAX Dimensional International Core Equity Fund	8.54%	7.89%	7.71%	8.19%	7.39%	6.15%	7.33%	6.68%	7.69%	5.63%	6.95%	7.41%
MIEKX MFS International Equity Fund Class R6	2.54%	2.60%	1.41%	1.67%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both DIAX and MIEKX in my portfolio?

DIAX and MIEKX have a correlation of 0.50, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.