ARTKX vs. MIEIX

Last updated Jun 13, 2026

ARTKX (Artisan International Value Fund) and MIEIX (MFS International Equity Fund Class R6) are both Foreign Large Cap Equities funds. Over the past 10 years, ARTKX returned 11.01%/yr vs 10.14%/yr for MIEIX. Their correlation of 0.89 suggests significant overlap in exposure. ARTKX charges 1.25%/yr vs 0.68%/yr for MIEIX.

Performance

ARTKX vs. MIEIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Artisan International Value Fund (ARTKX) 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, ARTKX achieves a 10.12% return, which is significantly higher than MIEIX's 2.41% return. Over the past 10 years, ARTKX has outperformed MIEIX with an annualized return of 11.01%, while MIEIX has yielded a comparatively lower 10.14% annualized return.

ARTKX

• 1D: 2.04%
• 1M: 4.30%
• YTD: 10.12%
• 6M: 12.08%
• 1Y: 22.10%
• 3Y*: 16.17%
• 5Y*: 10.13%
• 10Y*: 11.01%

MIEIX

• 1D: 2.04%
• 1M: 1.86%
• YTD: 2.41%
• 6M: 4.12%
• 1Y: 9.35%
• 3Y*: 11.54%
• 5Y*: 6.87%
• 10Y*: 10.14%

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

ARTKX vs. MIEIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ARTKX Artisan International Value Fund	10.12%	22.54%	6.38%	22.65%	-6.98%	16.66%	8.52%	23.98%	-15.70%	23.84%
MIEIX MFS International Equity Fund Class R6	2.41%	23.22%	4.13%	19.06%	-14.82%	15.13%	11.11%	28.42%	-10.66%	28.01%

Correlation

The correlation between ARTKX and MIEIX is 0.82, 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	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.86
Correlation (5Y) Calculated over the trailing 5-year period	0.88
Correlation (10Y) Calculated over the trailing 10-year period	0.88
Correlation (All Time) Calculated using the full available price history since Sep 24, 2002	0.89

The correlation between ARTKX and MIEIX has been stable across timeframes, ranging from 0.82 to 0.89 - a consistent structural relationship.

Return for Risk

ARTKX vs. MIEIX — Risk / Return Rank

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

ARTKX

ARTKX Risk / Return Rank: 46
ARTKX Sharpe Ratio Rank: 44
ARTKX Sortino Ratio Rank: 47
ARTKX Omega Ratio Rank: 51
ARTKX Calmar Ratio Rank: 47
ARTKX Martin Ratio Rank: 41

MIEIX

MIEIX Risk / Return Rank: 11
MIEIX Sharpe Ratio Rank: 11
MIEIX Sortino Ratio Rank: 11
MIEIX Omega Ratio Rank: 11
MIEIX Calmar Ratio Rank: 11
MIEIX Martin Ratio Rank: 12

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.

ARTKX vs. MIEIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Artisan International Value Fund (ARTKX) 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.

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.

	ARTKX	MIEIX	Difference
Sharpe ratio: Return per unit of total volatility	1.52	0.62	+0.91
Sortino ratio: Return per unit of downside risk	2.25	0.96	+1.30
Omega ratio: Gain probability vs. loss probability	1.31	1.12	+0.19
Calmar ratio: Return relative to maximum drawdown	2.14	0.74	+1.41
Martin ratio: Return relative to average drawdown	7.18	2.57	+4.62

ARTKX vs. MIEIX - Sharpe Ratio Comparison

The current ARTKX Sharpe Ratio is 1.52, which is higher than the MIEIX Sharpe Ratio of 0.62. The chart below compares the historical Sharpe Ratios of ARTKX 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.

Drawdowns

ARTKX vs. MIEIX - Drawdown Comparison

The maximum ARTKX drawdown since its inception was -51.90%, roughly equal to the maximum MIEIX drawdown of -53.13%. Use the drawdown chart below to compare losses from any high point for ARTKX and MIEIX.

Drawdown Indicators

	ARTKX	MIEIX	Difference
Max Drawdown Largest peak-to-trough decline	-51.90%	-53.13%	+1.23%
Max Drawdown (1Y) Largest decline over 1 year	-9.96%	-11.26%	+1.30%
Max Drawdown (3Y) Largest decline over 3 years	-10.88%	-13.43%	+2.55%
Max Drawdown (5Y) Largest decline over 5 years	-24.95%	-28.07%	+3.12%
Max Drawdown (10Y) Largest decline over 10 years	-38.11%	-31.35%	-6.76%
Current Drawdown Current decline from peak	-0.35%	-2.28%	+1.93%
Average Drawdown Average peak-to-trough decline	-6.72%	-8.97%	+2.25%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.96%	3.23%	-0.27%

Volatility

ARTKX vs. MIEIX - Volatility Comparison

Artisan International Value Fund (ARTKX) has a higher volatility of 4.65% compared to MFS International Equity Fund Class R6 (MIEIX) at 3.81%. This indicates that ARTKX'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

	ARTKX	MIEIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.65%	3.81%	+0.84%
Volatility (6M) Calculated over the trailing 6-month period	10.05%	10.65%	-0.60%
Volatility (1Y) Calculated over the trailing 1-year period	14.01%	13.45%	+0.56%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.03%	15.39%	-1.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.18%	15.94%	+0.24%

ARTKX vs. MIEIX - Expense Ratio Comparison

ARTKX has a 1.25% expense ratio, which is higher than MIEIX's 0.68% expense ratio.

Dividends

ARTKX vs. MIEIX - Dividend Comparison

ARTKX's dividend yield for the trailing twelve months is around 6.28%, more than MIEIX's 2.61% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ARTKX Artisan International Value Fund	6.28%	6.90%	4.10%	2.84%	2.11%	9.72%	0.84%	3.64%	5.37%	3.89%	3.11%	6.17%
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%

Frequently Asked Questions

Can I hold both ARTKX and MIEIX in my portfolio?

ARTKX and MIEIX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ARTKX or MIEIX?

ARTKX has higher volatility (4.65%) compared to MIEIX (3.81%). In terms of maximum drawdown, ARTKX dropped -51.90% vs MIEIX's -53.13%.

Which has better risk-adjusted returns?

ARTKX currently has the higher Sharpe Ratio (1.52 vs 0.62), 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.