OTCKX vs. IMIDX
Compare and contrast key facts about MFS Mid Cap Growth Fund Class R6 (OTCKX) and Congress Mid Cap Growth Fund (IMIDX).
OTCKX is an actively managed fund by MFS. It was launched on Dec 1, 1993. IMIDX is managed by Congress. It was launched on Oct 31, 2012.
Performance
OTCKX vs. IMIDX - Performance Comparison
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OTCKX vs. IMIDX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
OTCKX MFS Mid Cap Growth Fund Class R6 | -9.60% | 3.75% | 26.48% | 21.50% | -28.29% | 14.09% | 35.81% | 37.93% | 1.19% | 26.35% |
IMIDX Congress Mid Cap Growth Fund | -2.83% | -4.88% | 18.11% | 16.29% | -26.94% | 29.42% | 30.57% | 42.36% | -4.98% | 15.91% |
Returns By Period
In the year-to-date period, OTCKX achieves a -9.60% return, which is significantly lower than IMIDX's -2.83% return. Over the past 10 years, OTCKX has outperformed IMIDX with an annualized return of 11.43%, while IMIDX has yielded a comparatively lower 10.30% annualized return.
OTCKX
- 1D
- -1.00%
- 1M
- -9.60%
- YTD
- -9.60%
- 6M
- -14.24%
- 1Y
- -0.21%
- 3Y*
- 10.26%
- 5Y*
- 3.85%
- 10Y*
- 11.43%
IMIDX
- 1D
- -2.11%
- 1M
- -8.66%
- YTD
- -2.83%
- 6M
- -9.79%
- 1Y
- 3.14%
- 3Y*
- 5.88%
- 5Y*
- 2.23%
- 10Y*
- 10.30%
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OTCKX vs. IMIDX - Expense Ratio Comparison
OTCKX has a 0.65% expense ratio, which is lower than IMIDX's 0.79% expense ratio.
Return for Risk
OTCKX vs. IMIDX — Risk / Return Rank
OTCKX
IMIDX
OTCKX vs. IMIDX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MFS Mid Cap Growth Fund Class R6 (OTCKX) and Congress Mid Cap Growth Fund (IMIDX). 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.
| OTCKX | IMIDX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | -0.01 | 0.17 | -0.18 |
Sortino ratioReturn per unit of downside risk | 0.12 | 0.39 | -0.27 |
Omega ratioGain probability vs. loss probability | 1.02 | 1.05 | -0.03 |
Calmar ratioReturn relative to maximum drawdown | -0.13 | 0.14 | -0.27 |
Martin ratioReturn relative to average drawdown | -0.38 | 0.35 | -0.73 |
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
| OTCKX | IMIDX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -0.01 | 0.17 | -0.18 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.19 | 0.11 | +0.08 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.57 | 0.49 | +0.08 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.54 | 0.59 | -0.05 |
Correlation
The correlation between OTCKX and IMIDX is 0.93, 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
OTCKX vs. IMIDX - Dividend Comparison
OTCKX's dividend yield for the trailing twelve months is around 16.46%, more than IMIDX's 13.66% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
OTCKX MFS Mid Cap Growth Fund Class R6 | 16.46% | 14.88% | 16.85% | 0.00% | 0.00% | 3.35% | 0.77% | 0.81% | 4.40% | 8.28% | 5.38% | 2.72% |
IMIDX Congress Mid Cap Growth Fund | 13.66% | 13.27% | 27.75% | 6.27% | 5.80% | 12.29% | 2.06% | 10.80% | 2.99% | 0.04% | 1.11% | 0.80% |
Drawdowns
OTCKX vs. IMIDX - Drawdown Comparison
The maximum OTCKX drawdown since its inception was -36.64%, roughly equal to the maximum IMIDX drawdown of -35.15%. Use the drawdown chart below to compare losses from any high point for OTCKX and IMIDX.
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Drawdown Indicators
| OTCKX | IMIDX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -36.64% | -35.15% | -1.49% |
Max Drawdown (1Y)Largest decline over 1 year | -16.31% | -12.10% | -4.21% |
Max Drawdown (5Y)Largest decline over 5 years | -36.64% | -34.88% | -1.76% |
Max Drawdown (10Y)Largest decline over 10 years | -36.64% | -35.15% | -1.49% |
Current DrawdownCurrent decline from peak | -16.31% | -13.30% | -3.01% |
Average DrawdownAverage peak-to-trough decline | -7.37% | -7.26% | -0.11% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.71% | 4.64% | +1.07% |
Volatility
OTCKX vs. IMIDX - Volatility Comparison
The current volatility for MFS Mid Cap Growth Fund Class R6 (OTCKX) is 5.89%, while Congress Mid Cap Growth Fund (IMIDX) has a volatility of 6.85%. This indicates that OTCKX experiences smaller price fluctuations and is considered to be less risky than IMIDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| OTCKX | IMIDX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.89% | 6.85% | -0.96% |
Volatility (6M)Calculated over the trailing 6-month period | 12.58% | 13.52% | -0.94% |
Volatility (1Y)Calculated over the trailing 1-year period | 20.46% | 20.45% | +0.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.27% | 21.12% | -0.85% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.96% | 20.93% | -0.97% |