OTCAX vs. DFAX
OTCAX (MFS Mid Cap Growth Fund) and DFAX (Dimensional World ex US Core Equity 2 ETF) are both funds - OTCAX is a Mid Cap Growth Equities fund managed by MFS, while DFAX is a Foreign Large Cap Equities fund actively managed by Dimensional. Over the past 3 years, OTCAX returned 12.52%/yr vs 19.83%/yr for DFAX. Their 0.70 correlation means they have sometimes moved together and sometimes differently. OTCAX charges 1.00%/yr vs 0.28%/yr for DFAX.
Performance
OTCAX vs. DFAX - Performance Comparison
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Returns By Period
In the year-to-date period, OTCAX achieves a 3.40% return, which is significantly lower than DFAX's 15.67% return.
OTCAX
- 1D
- 1.32%
- 1M
- -2.06%
- 6M
- 5.07%
- YTD
- 3.40%
- 1Y
- -1.75%
- 3Y*
- 12.52%
- 5Y*
- 3.35%
- 10Y*
- 11.67%
- ALL TIME*
- 8.66%
DFAX
- 1D
- 1.88%
- 1M
- 1.96%
- 6M
- 7.86%
- YTD
- 15.67%
- 1Y
- 29.57%
- 3Y*
- 19.83%
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- 10.13%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $32.66M | $29.75M | $28.81M | |
| $0.00 | $0.00 | $0.00 |
OTCAX vs. DFAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
OTCAX MFS Mid Cap Growth Fund | 3.40% | 3.32% | 23.47% | 21.00% | -28.53% | 1.08% |
DFAX Dimensional World ex US Core Equity 2 ETF | 15.67% | 35.42% | 4.78% | 16.66% | -14.48% | -2.10% |
Correlation
The correlation between OTCAX and DFAX is 0.71, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.71 |
Correlation (3Y) Balances recent behavior with more history. | 0.66 |
Correlation (All Time) Calculated using the full available price history since Sep 13, 2021 | 0.70 |
The correlation between OTCAX and DFAX has been stable across timeframes, ranging from 0.66 to 0.71 - a consistent structural relationship.
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Return for Risk
OTCAX vs. DFAX — Risk / Return Rank
OTCAX
DFAX
OTCAX vs. DFAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MFS Mid Cap Growth Fund (OTCAX) and Dimensional World ex US Core Equity 2 ETF (DFAX). 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.
| OTCAX | DFAX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.80 | ||
| Sortino ratioReturn per unit of downside risk | -2.32 | ||
| Omega ratioGain probability vs. loss probability | 1.01 | 1.33 | -0.31 |
| Calmar ratioReturn relative to maximum drawdown | -0.00 | 2.67 | -2.68 |
| Martin ratioReturn relative to average drawdown | -0.01 | 9.81 | -9.82 |
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Drawdowns
OTCAX vs. DFAX - Drawdown Comparison
The maximum OTCAX drawdown since its inception was -74.39%, which is greater than DFAX's maximum drawdown of -28.15%. Use the drawdown chart below to compare losses from any high point for OTCAX and DFAX.
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Drawdown Indicators
| OTCAX | DFAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -74.39% | -28.15% | -46.24% |
Max Drawdown (1Y)Largest decline over 1 year | -16.46% | -11.11% | -5.35% |
Max Drawdown (3Y)Largest decline over 3 years | -21.05% | -13.89% | -7.16% |
Max Drawdown (5Y)Largest decline over 5 years | -36.85% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -36.85% | — | — |
Current DrawdownCurrent decline from peak | -4.38% | -0.62% | -3.76% |
Average DrawdownAverage peak-to-trough decline | -23.03% | -6.53% | -16.50% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 6.61% | 3.02% | +3.59% |
Volatility
OTCAX vs. DFAX - Volatility Comparison
The current volatility for MFS Mid Cap Growth Fund (OTCAX) is 4.88%, while Dimensional World ex US Core Equity 2 ETF (DFAX) has a volatility of 5.46%. This indicates that OTCAX experiences smaller price fluctuations and is considered to be less risky than DFAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| OTCAX | DFAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.88% | 5.46% | -0.58% |
Volatility (6M)Calculated over the trailing 6-month period | 14.44% | 14.77% | -0.33% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.74% | 16.59% | +1.15% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.39% | 16.18% | +4.21% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.03% | 16.18% | +3.85% |
OTCAX vs. DFAX - Expense Ratio Comparison
OTCAX has a 1.00% expense ratio, which is higher than DFAX's 0.28% expense ratio.
Dividends
OTCAX vs. DFAX - Dividend Comparison
OTCAX's dividend yield for the trailing twelve months is around 16.21%, more than DFAX's 2.29% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
DFAX Dimensional World ex US Core Equity 2 ETF | 2.29% | 2.58% | 2.98% | 3.01% | 3.30% | 1.40% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
OTCAX MFS Mid Cap Growth Fund | 16.21% | 16.76% | 15.59% | 0.00% | 0.00% | 3.64% | 0.83% | 0.86% | 4.70% | 8.80% | 5.67% | 2.84% |
Frequently Asked Questions
OTCAX and DFAX have a correlation of 0.71, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
DFAX has higher volatility (5.46%) compared to OTCAX (4.88%). In terms of maximum drawdown, OTCAX dropped -74.39% vs DFAX's -28.15%.
DFAX currently has the higher Sharpe Ratio (1.79 vs -0.00), 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.
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