ETGLX vs. IMIDX

Last updated Jun 24, 2026

ETGLX (Eventide Gilead Fund) and IMIDX (Congress Mid Cap Growth Fund) are both Mid Cap Growth Equities funds. Over the past 10 years, ETGLX returned 14.80%/yr vs 12.73%/yr for IMIDX. Their correlation of 0.84 suggests significant overlap in exposure. ETGLX charges 1.31%/yr vs 0.79%/yr for IMIDX.

Performance

ETGLX vs. IMIDX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Eventide Gilead Fund (ETGLX) and Congress Mid Cap Growth Fund (IMIDX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ETGLX achieves a 17.93% return, which is significantly lower than IMIDX's 20.09% return. Over the past 10 years, ETGLX has outperformed IMIDX with an annualized return of 14.80%, while IMIDX has yielded a comparatively lower 12.73% annualized return.

ETGLX

• 1D: 0.74%
• 1M: 6.18%
• YTD: 17.93%
• 6M: 16.04%
• 1Y: 36.95%
• 3Y*: 16.16%
• 5Y*: 3.55%
• 10Y*: 14.80%

IMIDX

• 1D: 1.15%
• 1M: 5.18%
• YTD: 20.09%
• 6M: 17.63%
• 1Y: 17.97%
• 3Y*: 13.50%
• 5Y*: 5.48%
• 10Y*: 12.73%

*Multi-year figures are annualized to reflect compound growth (CAGR)

ETGLX vs. IMIDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ETGLX Eventide Gilead Fund	17.93%	23.50%	-0.23%	22.52%	-34.17%	11.22%	55.13%	33.84%	-2.56%	32.85%
IMIDX Congress Mid Cap Growth Fund	20.09%	-4.88%	18.11%	16.29%	-26.94%	29.42%	30.57%	42.36%	-4.98%	15.91%

Correlation

The correlation between ETGLX and IMIDX is 0.78, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.78
Correlation (3Y) Calculated over the trailing 3-year period	0.83
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (10Y) Calculated over the trailing 10-year period	0.85
Correlation (All Time) Calculated using the full available price history since Nov 1, 2012	0.84

The correlation between ETGLX and IMIDX has been stable across timeframes, ranging from 0.78 to 0.87 - a consistent structural relationship.

Return for Risk

ETGLX vs. IMIDX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

ETGLX

ETGLX Risk / Return Rank: 54
ETGLX Sharpe Ratio Rank: 57
ETGLX Sortino Ratio Rank: 52
ETGLX Omega Ratio Rank: 52
ETGLX Calmar Ratio Rank: 53
ETGLX Martin Ratio Rank: 55

IMIDX

IMIDX Risk / Return Rank: 17
IMIDX Sharpe Ratio Rank: 15
IMIDX Sortino Ratio Rank: 17
IMIDX Omega Ratio Rank: 15
IMIDX Calmar Ratio Rank: 22
IMIDX Martin Ratio Rank: 17

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

ETGLX vs. IMIDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Eventide Gilead Fund (ETGLX) 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.

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.

	ETGLX	IMIDX	Difference
Sharpe ratio: Return per unit of total volatility	2.06	1.03	+1.03
Sortino ratio: Return per unit of downside risk	2.80	1.57	+1.22
Omega ratio: Gain probability vs. loss probability	1.36	1.18	+0.18
Calmar ratio: Return relative to maximum drawdown	2.67	1.62	+1.04
Martin ratio: Return relative to average drawdown	10.55	4.28	+6.28

ETGLX vs. IMIDX - Sharpe Ratio Comparison

The current ETGLX Sharpe Ratio is 2.06, which is higher than the IMIDX Sharpe Ratio of 1.03. The chart below compares the historical Sharpe Ratios of ETGLX and IMIDX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

ETGLX vs. IMIDX - Drawdown Comparison

The maximum ETGLX drawdown since its inception was -41.41%, which is greater than IMIDX's maximum drawdown of -35.15%. Use the drawdown chart below to compare losses from any high point for ETGLX and IMIDX.

Drawdown Indicators

	ETGLX	IMIDX	Difference
Max Drawdown Largest peak-to-trough decline	-41.41%	-35.15%	-6.26%
Max Drawdown (1Y) Largest decline over 1 year	-14.44%	-12.10%	-2.34%
Max Drawdown (3Y) Largest decline over 3 years	-25.74%	-23.49%	-2.25%
Max Drawdown (5Y) Largest decline over 5 years	-41.41%	-34.88%	-6.53%
Max Drawdown (10Y) Largest decline over 10 years	-41.41%	-35.15%	-6.26%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-11.58%	-7.18%	-4.40%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.64%	4.58%	-0.94%

Volatility

ETGLX vs. IMIDX - Volatility Comparison

Eventide Gilead Fund (ETGLX) has a higher volatility of 6.79% compared to Congress Mid Cap Growth Fund (IMIDX) at 6.40%. This indicates that ETGLX's price experiences larger fluctuations and is considered to be riskier than IMIDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ETGLX	IMIDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.79%	6.40%	+0.39%
Volatility (6M) Calculated over the trailing 6-month period	15.31%	15.54%	-0.23%
Volatility (1Y) Calculated over the trailing 1-year period	18.74%	19.08%	-0.34%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.36%	21.53%	+2.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.50%	21.18%	+2.32%

ETGLX vs. IMIDX - Expense Ratio Comparison

ETGLX has a 1.31% expense ratio, which is higher than IMIDX's 0.79% expense ratio.

Dividends

ETGLX vs. IMIDX - Dividend Comparison

ETGLX's dividend yield for the trailing twelve months is around 10.67%, less than IMIDX's 11.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ETGLX Eventide Gilead Fund	10.67%	12.58%	1.29%	0.00%	5.53%	6.47%	0.81%	3.21%	5.41%	0.00%	0.00%	1.14%
IMIDX Congress Mid Cap Growth Fund	11.05%	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

Can I hold both ETGLX and IMIDX in my portfolio?

ETGLX and IMIDX have a correlation of 0.78, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ETGLX or IMIDX?

ETGLX has higher volatility (6.79%) compared to IMIDX (6.40%). In terms of maximum drawdown, ETGLX dropped -41.41% vs IMIDX's -35.15%.

Which has better risk-adjusted returns?

ETGLX currently has the higher Sharpe Ratio (2.06 vs 1.03), 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.