APDIX vs. MIEKX

Last updated Jun 23, 2026

APDIX (Artisan International Fund Advisor Class) and MIEKX (MFS International Equity Fund Class R6) are both International Equity funds. Both are actively managed. Over the past 3 years, APDIX returned 21.79%/yr vs 10.76%/yr for MIEKX. Their correlation of 0.81 suggests significant overlap in exposure. APDIX charges 1.05%/yr vs 0.73%/yr for MIEKX.

Performance

APDIX vs. MIEKX - Performance Comparison

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

Returns By Period

In the year-to-date period, APDIX achieves a 14.74% return, which is significantly higher than MIEKX's 3.06% return.

APDIX

• 1D: 0.06%
• 1M: -0.35%
• YTD: 14.74%
• 6M: 15.36%
• 1Y: 25.38%
• 3Y*: 21.79%
• 5Y*: 10.47%
• 10Y*: 10.25%

MIEKX

• 1D: 0.36%
• 1M: 0.48%
• YTD: 3.06%
• 6M: 3.14%
• 1Y: 12.00%
• 3Y*: 10.76%
• 5Y*: —
• 10Y*: —

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

APDIX vs. MIEKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
APDIX Artisan International Fund Advisor Class	14.74%	36.36%	10.78%	5.00%
MIEKX MFS International Equity Fund Class R6	3.06%	23.12%	4.02%	5.55%

Correlation

The correlation between APDIX and MIEKX is 0.68, 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	0.68
Correlation (3Y) Calculated over the trailing 3-year period	0.81
Correlation (All Time) Calculated using the full available price history since May 17, 2023	0.81

The correlation between APDIX and MIEKX shifts across timeframes, from 0.68 (1 year) to 0.81 (all time), reflecting how their relationship changes across market environments.

Return for Risk

APDIX vs. MIEKX — Risk / Return Rank

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

APDIX

APDIX Risk / Return Rank: 45
APDIX Sharpe Ratio Rank: 42
APDIX Sortino Ratio Rank: 43
APDIX Omega Ratio Rank: 41
APDIX Calmar Ratio Rank: 55
APDIX Martin Ratio Rank: 44

MIEKX

MIEKX Risk / Return Rank: 11
MIEKX Sharpe Ratio Rank: 11
MIEKX Sortino Ratio Rank: 11
MIEKX Omega Ratio Rank: 11
MIEKX Calmar Ratio Rank: 11
MIEKX Martin Ratio Rank: 13

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.

APDIX vs. MIEKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Artisan International Fund Advisor Class (APDIX) 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	APDIX	MIEKX	Difference
Sharpe ratio: Return per unit of total volatility	1.76	0.83	+0.93
Sortino ratio: Return per unit of downside risk	2.54	1.25	+1.29
Omega ratio: Gain probability vs. loss probability	1.32	1.15	+0.17
Calmar ratio: Return relative to maximum drawdown	2.72	0.98	+1.73
Martin ratio: Return relative to average drawdown	8.92	3.43	+5.49

APDIX vs. MIEKX - Sharpe Ratio Comparison

The current APDIX Sharpe Ratio is 1.76, which is higher than the MIEKX Sharpe Ratio of 0.83. The chart below compares the historical Sharpe Ratios of APDIX and MIEKX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

APDIX vs. MIEKX - Drawdown Comparison

The maximum APDIX drawdown since its inception was -33.79%, which is greater than MIEKX's maximum drawdown of -13.42%. Use the drawdown chart below to compare losses from any high point for APDIX and MIEKX.

Drawdown Indicators

	APDIX	MIEKX	Difference
Max Drawdown Largest peak-to-trough decline	-33.79%	-13.42%	-20.37%
Max Drawdown (1Y) Largest decline over 1 year	-9.77%	-11.30%	+1.53%
Max Drawdown (3Y) Largest decline over 3 years	-13.39%	-13.42%	+0.03%
Max Drawdown (5Y) Largest decline over 5 years	-33.79%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-33.79%	—	—
Current Drawdown Current decline from peak	-4.25%	-1.67%	-2.58%
Average Drawdown Average peak-to-trough decline	-6.98%	-2.83%	-4.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.96%	3.22%	-0.26%

Volatility

APDIX vs. MIEKX - Volatility Comparison

Artisan International Fund Advisor Class (APDIX) has a higher volatility of 5.06% compared to MFS International Equity Fund Class R6 (MIEKX) at 3.68%. This indicates that APDIX's price experiences larger fluctuations and is considered to be riskier than MIEKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	APDIX	MIEKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.06%	3.68%	+1.38%
Volatility (6M) Calculated over the trailing 6-month period	12.64%	10.61%	+2.03%
Volatility (1Y) Calculated over the trailing 1-year period	15.08%	13.31%	+1.77%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.96%	13.26%	+2.70%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.33%	13.26%	+3.07%

APDIX vs. MIEKX - Expense Ratio Comparison

APDIX has a 1.05% expense ratio, which is higher than MIEKX's 0.73% expense ratio.

Dividends

APDIX vs. MIEKX - Dividend Comparison

APDIX's dividend yield for the trailing twelve months is around 19.91%, more than MIEKX's 2.52% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
APDIX Artisan International Fund Advisor Class	19.91%	22.84%	10.42%	2.00%	2.74%	23.63%	3.39%	5.41%	9.98%	0.83%	1.45%
MIEKX MFS International Equity Fund Class R6	2.52%	2.60%	1.41%	1.67%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both APDIX and MIEKX in my portfolio?

APDIX and MIEKX have a correlation of 0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, APDIX or MIEKX?

APDIX has higher volatility (5.06%) compared to MIEKX (3.68%). In terms of maximum drawdown, APDIX dropped -33.79% vs MIEKX's -13.42%.

Which has better risk-adjusted returns?

APDIX currently has the higher Sharpe Ratio (1.76 vs 0.83), 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.