IMIDX vs. FMDGX
IMIDX (Congress Mid Cap Growth Fund) and FMDGX (Fidelity Mid Cap Growth Index Fund) are both Mid Cap Growth Equities funds. Over the past 5 years, IMIDX returned 3.41%/yr vs 4.43%/yr for FMDGX. Their correlation of 0.93 means they have usually moved in the same direction. IMIDX charges 0.79%/yr vs 0.05%/yr for FMDGX.
Performance
IMIDX vs. FMDGX - Performance Comparison
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Returns By Period
In the year-to-date period, IMIDX achieves a 15.91% return, which is significantly higher than FMDGX's 0.60% return.
IMIDX
- 1D
- 3.65%
- 1M
- 0.82%
- 6M
- 12.15%
- YTD
- 15.91%
- 1Y
- 10.69%
- 3Y*
- 9.91%
- 5Y*
- 3.41%
- 10Y*
- 11.58%
- ALL TIME*
- 12.55%
FMDGX
- 1D
- 2.29%
- 1M
- -3.87%
- 6M
- 1.50%
- YTD
- 0.60%
- 1Y
- -0.77%
- 3Y*
- 11.99%
- 5Y*
- 4.43%
- 10Y*
- —
- ALL TIME*
- 10.00%
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 |
IMIDX vs. FMDGX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
IMIDX Congress Mid Cap Growth Fund | 15.91% | -4.88% | 18.11% | 16.29% | -26.94% | 29.42% | 30.57% | 14.42% |
FMDGX Fidelity Mid Cap Growth Index Fund | 0.60% | 8.60% | 22.03% | 25.79% | -26.67% | 12.67% | 34.84% | 4.63% |
Correlation
The correlation between IMIDX and FMDGX is 0.84, 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. | 0.85 |
Correlation (3Y) Balances recent behavior with more history. | 0.89 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.92 |
Correlation (All Time) Calculated using the full available price history since Jul 17, 2019 | 0.93 |
The correlation between IMIDX and FMDGX has been stable across timeframes, ranging from 0.84 to 0.93 - a consistent structural relationship.
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Return for Risk
IMIDX vs. FMDGX — Risk / Return Rank
IMIDX
FMDGX
IMIDX vs. FMDGX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Congress Mid Cap Growth Fund (IMIDX) and Fidelity Mid Cap Growth Index Fund (FMDGX). 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.
| IMIDX | FMDGX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.60 | ||
| Sortino ratioReturn per unit of downside risk | +0.89 | ||
| Omega ratioGain probability vs. loss probability | 1.09 | 0.99 | +0.10 |
| Calmar ratioReturn relative to maximum drawdown | 0.72 | -0.21 | +0.92 |
| Martin ratioReturn relative to average drawdown | 1.82 | -0.57 | +2.39 |
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Drawdowns
IMIDX vs. FMDGX - Drawdown Comparison
The maximum IMIDX drawdown since its inception was -35.15%, smaller than the maximum FMDGX drawdown of -38.59%. Use the drawdown chart below to compare losses from any high point for IMIDX and FMDGX.
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Drawdown Indicators
| IMIDX | FMDGX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -35.15% | -38.59% | +3.44% |
Max Drawdown (1Y)Largest decline over 1 year | -12.10% | -14.75% | +2.65% |
Max Drawdown (3Y)Largest decline over 3 years | -23.49% | -25.30% | +1.81% |
Max Drawdown (5Y)Largest decline over 5 years | -34.88% | -38.59% | +3.71% |
Max Drawdown (10Y)Largest decline over 10 years | -35.15% | — | — |
Current DrawdownCurrent decline from peak | -3.49% | -6.20% | +2.71% |
Average DrawdownAverage peak-to-trough decline | -7.15% | -11.03% | +3.88% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.77% | 5.29% | -0.52% |
Volatility
IMIDX vs. FMDGX - Volatility Comparison
Congress Mid Cap Growth Fund (IMIDX) has a higher volatility of 6.19% compared to Fidelity Mid Cap Growth Index Fund (FMDGX) at 5.15%. This indicates that IMIDX's price experiences larger fluctuations and is considered to be riskier than FMDGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IMIDX | FMDGX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.19% | 5.15% | +1.04% |
Volatility (6M)Calculated over the trailing 6-month period | 16.49% | 14.00% | +2.49% |
Volatility (1Y)Calculated over the trailing 1-year period | 20.12% | 17.61% | +2.51% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.70% | 22.54% | -0.84% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.21% | 24.23% | -3.02% |
IMIDX vs. FMDGX - Expense Ratio Comparison
IMIDX has a 0.79% expense ratio, which is higher than FMDGX's 0.05% expense ratio.
Dividends
IMIDX vs. FMDGX - Dividend Comparison
IMIDX's dividend yield for the trailing twelve months is around 11.45%, more than FMDGX's 1.84% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FMDGX Fidelity Mid Cap Growth Index Fund | 1.84% | 1.85% | 0.47% | 0.63% | 0.81% | 6.43% | 0.36% | 0.29% | 0.00% | 0.00% | 0.00% | 0.00% |
IMIDX Congress Mid Cap Growth Fund | 11.45% | 13.27% | 27.75% | 6.27% | 5.80% | 12.29% | 2.06% | 10.80% | 2.99% | 0.04% | 1.11% | 0.80% |
Frequently Asked Questions
IMIDX and FMDGX have a correlation of 0.84, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IMIDX has higher volatility (6.19%) compared to FMDGX (5.15%). In terms of maximum drawdown, IMIDX dropped -35.15% vs FMDGX's -38.59%.
IMIDX currently has the higher Sharpe Ratio (0.43 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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