OAKMX vs. MEIIX
Compare and contrast key facts about Oakmark Fund Investor Class (OAKMX) and MFS Value Fund Class I (MEIIX).
OAKMX is managed by Oakmark. It was launched on Aug 5, 1991. MEIIX is managed by MFS. It was launched on Feb 1, 1996.
Performance
OAKMX vs. MEIIX - Performance Comparison
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OAKMX vs. MEIIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
OAKMX Oakmark Fund Investor Class | -2.47% | 14.13% | 16.02% | 30.92% | -13.38% | 34.85% | 12.90% | 27.14% | -12.76% | 21.12% |
MEIIX MFS Value Fund Class I | 1.07% | 13.26% | 11.86% | 8.21% | -6.02% | 25.43% | 3.99% | 30.04% | -9.90% | 17.20% |
Returns By Period
In the year-to-date period, OAKMX achieves a -2.47% return, which is significantly lower than MEIIX's 1.07% return. Over the past 10 years, OAKMX has outperformed MEIIX with an annualized return of 13.51%, while MEIIX has yielded a comparatively lower 9.90% annualized return.
OAKMX
- 1D
- 1.76%
- 1M
- -3.56%
- YTD
- -2.47%
- 6M
- 2.30%
- 1Y
- 10.13%
- 3Y*
- 16.07%
- 5Y*
- 10.98%
- 10Y*
- 13.51%
MEIIX
- 1D
- 1.65%
- 1M
- -5.02%
- YTD
- 1.07%
- 6M
- 3.60%
- 1Y
- 10.36%
- 3Y*
- 12.03%
- 5Y*
- 8.36%
- 10Y*
- 9.90%
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OAKMX vs. MEIIX - Expense Ratio Comparison
OAKMX has a 0.91% expense ratio, which is higher than MEIIX's 0.55% expense ratio.
Return for Risk
OAKMX vs. MEIIX — Risk / Return Rank
OAKMX
MEIIX
OAKMX vs. MEIIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Oakmark Fund Investor Class (OAKMX) and MFS Value Fund Class I (MEIIX). 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.
| OAKMX | MEIIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.54 | 0.69 | -0.15 |
Sortino ratioReturn per unit of downside risk | 0.87 | 1.03 | -0.16 |
Omega ratioGain probability vs. loss probability | 1.13 | 1.15 | -0.02 |
Calmar ratioReturn relative to maximum drawdown | 0.82 | 1.02 | -0.20 |
Martin ratioReturn relative to average drawdown | 3.26 | 4.48 | -1.22 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| OAKMX | MEIIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.54 | 0.69 | -0.15 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.60 | 0.60 | 0.00 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.66 | 0.60 | +0.06 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.71 | 0.56 | +0.15 |
Correlation
The correlation between OAKMX and MEIIX is 0.89, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
OAKMX vs. MEIIX - Dividend Comparison
OAKMX's dividend yield for the trailing twelve months is around 0.94%, less than MEIIX's 9.62% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
OAKMX Oakmark Fund Investor Class | 0.94% | 0.92% | 1.12% | 1.02% | 0.92% | 1.94% | 0.17% | 8.33% | 8.13% | 4.06% | 2.58% | 1.43% |
MEIIX MFS Value Fund Class I | 9.62% | 9.52% | 9.30% | 8.41% | 7.58% | 3.32% | 2.63% | 3.17% | 3.62% | 4.04% | 2.91% | 5.97% |
Drawdowns
OAKMX vs. MEIIX - Drawdown Comparison
The maximum OAKMX drawdown since its inception was -56.19%, which is greater than MEIIX's maximum drawdown of -52.64%. Use the drawdown chart below to compare losses from any high point for OAKMX and MEIIX.
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Drawdown Indicators
| OAKMX | MEIIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -56.19% | -52.64% | -3.55% |
Max Drawdown (1Y)Largest decline over 1 year | -13.46% | -11.10% | -2.36% |
Max Drawdown (5Y)Largest decline over 5 years | -23.68% | -17.58% | -6.10% |
Max Drawdown (10Y)Largest decline over 10 years | -41.43% | -36.70% | -4.73% |
Current DrawdownCurrent decline from peak | -4.97% | -5.02% | +0.05% |
Average DrawdownAverage peak-to-trough decline | -6.41% | -6.58% | +0.17% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.39% | 2.53% | +0.86% |
Volatility
OAKMX vs. MEIIX - Volatility Comparison
Oakmark Fund Investor Class (OAKMX) has a higher volatility of 4.20% compared to MFS Value Fund Class I (MEIIX) at 3.64%. This indicates that OAKMX's price experiences larger fluctuations and is considered to be riskier than MEIIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| OAKMX | MEIIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.20% | 3.64% | +0.56% |
Volatility (6M)Calculated over the trailing 6-month period | 10.34% | 7.85% | +2.49% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.77% | 14.83% | +3.94% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.35% | 13.92% | +4.43% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.43% | 16.56% | +3.87% |