OTCAX vs. PMEGX
OTCAX (MFS Mid Cap Growth Fund) and PMEGX (T. Rowe Price Institutional Mid Cap Equity Growth Fund) are both Mid Cap Growth Equities funds. Over the past 10 years, OTCAX returned 11.54%/yr vs 9.78%/yr for PMEGX. Their correlation of 0.91 means they have usually moved in the same direction. OTCAX charges 1.00%/yr vs 0.61%/yr for PMEGX.
Performance
OTCAX vs. PMEGX - Performance Comparison
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Returns By Period
In the year-to-date period, OTCAX achieves a 2.18% return, which is significantly lower than PMEGX's 3.03% return. Over the past 10 years, OTCAX has outperformed PMEGX with an annualized return of 11.54%, while PMEGX has yielded a comparatively lower 9.78% annualized return.
OTCAX
- 1D
- 2.10%
- 1M
- -3.22%
- 6M
- 2.83%
- YTD
- 2.18%
- 1Y
- -1.26%
- 3Y*
- 11.20%
- 5Y*
- 3.22%
- 10Y*
- 11.54%
- ALL TIME*
- 8.63%
PMEGX
- 1D
- 0.47%
- 1M
- -1.53%
- 6M
- 2.67%
- YTD
- 3.03%
- 1Y
- 6.19%
- 3Y*
- 6.28%
- 5Y*
- 2.15%
- 10Y*
- 9.78%
- ALL TIME*
- 10.81%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
OTCAX vs. PMEGX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
OTCAX MFS Mid Cap Growth Fund | 2.18% | 3.32% | 23.47% | 21.00% | -28.53% | 13.66% | 35.34% | 37.43% | 0.82% | 25.95% |
PMEGX T. Rowe Price Institutional Mid Cap Equity Growth Fund | 3.03% | 3.73% | 9.15% | 20.69% | -23.19% | 15.50% | 23.95% | 33.08% | -2.23% | 26.02% |
Correlation
The correlation between OTCAX and PMEGX is 0.81, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.81 |
Correlation (3Y) Balances recent behavior with more history. | 0.83 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.90 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.91 |
Correlation (All Time) Calculated using the full available price history since Jul 30, 1996 | 0.91 |
The correlation between OTCAX and PMEGX shifts across timeframes, from 0.81 (1 year) to 0.91 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
OTCAX vs. PMEGX — Risk / Return Rank
OTCAX
PMEGX
OTCAX vs. PMEGX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MFS Mid Cap Growth Fund (OTCAX) and T. Rowe Price Institutional Mid Cap Equity Growth Fund (PMEGX). 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 | PMEGX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.48 | ||
| Sortino ratioReturn per unit of downside risk | -0.68 | ||
| Omega ratioGain probability vs. loss probability | 0.99 | 1.06 | -0.07 |
| Calmar ratioReturn relative to maximum drawdown | -0.19 | 0.41 | -0.60 |
| Martin ratioReturn relative to average drawdown | -0.46 | 1.39 | -1.85 |
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Drawdowns
OTCAX vs. PMEGX - Drawdown Comparison
The maximum OTCAX drawdown since its inception was -74.39%, which is greater than PMEGX's maximum drawdown of -55.88%. Use the drawdown chart below to compare losses from any high point for OTCAX and PMEGX.
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Drawdown Indicators
| OTCAX | PMEGX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -74.39% | -55.88% | -18.51% |
Max Drawdown (1Y)Largest decline over 1 year | -16.46% | -10.21% | -6.25% |
Max Drawdown (3Y)Largest decline over 3 years | -21.05% | -27.99% | +6.94% |
Max Drawdown (5Y)Largest decline over 5 years | -36.85% | -32.87% | -3.98% |
Max Drawdown (10Y)Largest decline over 10 years | -36.85% | -37.16% | +0.31% |
Current DrawdownCurrent decline from peak | -5.51% | -6.20% | +0.69% |
Average DrawdownAverage peak-to-trough decline | -23.03% | -8.99% | -14.04% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 6.60% | 3.04% | +3.56% |
Volatility
OTCAX vs. PMEGX - Volatility Comparison
MFS Mid Cap Growth Fund (OTCAX) has a higher volatility of 4.82% compared to T. Rowe Price Institutional Mid Cap Equity Growth Fund (PMEGX) at 2.50%. This indicates that OTCAX's price experiences larger fluctuations and is considered to be riskier than PMEGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| OTCAX | PMEGX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.82% | 2.50% | +2.32% |
Volatility (6M)Calculated over the trailing 6-month period | 14.58% | 10.49% | +4.09% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.73% | 13.64% | +4.09% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.39% | 20.11% | +0.28% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.02% | 19.75% | +0.27% |
OTCAX vs. PMEGX - Expense Ratio Comparison
OTCAX has a 1.00% expense ratio, which is higher than PMEGX's 0.61% expense ratio.
Dividends
OTCAX vs. PMEGX - Dividend Comparison
OTCAX's dividend yield for the trailing twelve months is around 16.40%, less than PMEGX's 20.48% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
OTCAX MFS Mid Cap Growth Fund | 16.40% | 16.76% | 15.59% | 0.00% | 0.00% | 3.64% | 0.83% | 0.86% | 4.70% | 8.80% | 5.67% | 2.84% |
PMEGX T. Rowe Price Institutional Mid Cap Equity Growth Fund | 20.48% | 21.10% | 14.15% | 7.07% | 1.65% | 12.80% | 4.44% | 5.11% | 10.42% | 6.30% | 1.04% | 6.18% |
Frequently Asked Questions
OTCAX and PMEGX have a correlation of 0.81, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
OTCAX has higher volatility (4.82%) compared to PMEGX (2.50%). In terms of maximum drawdown, OTCAX dropped -74.39% vs PMEGX's -55.88%.
PMEGX currently has the higher Sharpe Ratio (0.31 vs -0.17), 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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