HFMDX vs. GASFX

Last updated Jun 4, 2026

HFMDX (Hennessy Cornerstone Mid Cap 30 Fund) and GASFX (Hennessy Gas Utility Fund) are both mutual funds - HFMDX is a Mid Cap Blend Equities fund managed by Hennessy, while GASFX is a Utilities Equities fund managed by Hennessy. Over the past 10 years, HFMDX returned 14.27%/yr vs 9.17%/yr for GASFX. A 0.58 correlation means they provide meaningful diversification when combined. HFMDX charges 1.36%/yr vs 1.00%/yr for GASFX.

Performance

HFMDX vs. GASFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Hennessy Cornerstone Mid Cap 30 Fund (HFMDX) and Hennessy Gas Utility Fund (GASFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, HFMDX achieves a 17.06% return, which is significantly higher than GASFX's 9.02% return. Over the past 10 years, HFMDX has outperformed GASFX with an annualized return of 14.27%, while GASFX has yielded a comparatively lower 9.17% annualized return.

HFMDX

• 1D: -0.19%
• 1M: 3.10%
• YTD: 17.06%
• 6M: 17.55%
• 1Y: 27.66%
• 3Y*: 24.29%
• 5Y*: 16.18%
• 10Y*: 14.27%

GASFX

• 1D: 1.66%
• 1M: -4.14%
• YTD: 9.02%
• 6M: 7.50%
• 1Y: 11.12%
• 3Y*: 15.68%
• 5Y*: 12.33%
• 10Y*: 9.17%

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

HFMDX vs. GASFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
HFMDX Hennessy Cornerstone Mid Cap 30 Fund	17.06%	2.68%	34.13%	30.83%	2.72%	27.23%	23.37%	15.76%	-23.52%	20.71%
GASFX Hennessy Gas Utility Fund	9.02%	10.42%	24.98%	0.27%	13.68%	19.60%	-9.34%	20.80%	-3.47%	7.04%

Correlation

The correlation between HFMDX and GASFX is 0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.07
Correlation (3Y) Calculated over the trailing 3-year period	0.30
Correlation (5Y) Calculated over the trailing 5-year period	0.41
Correlation (10Y) Calculated over the trailing 10-year period	0.42
Correlation (All Time) Calculated using the full available price history since Jan 5, 2004	0.58

Over the past year, the correlation between HFMDX and GASFX has dropped to 0.07 - well below their long-term average of 0.58, suggesting their price drivers have been diverging.

Return for Risk

HFMDX vs. GASFX — Risk / Return Rank

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

HFMDX

HFMDX Risk / Return Rank: 27
HFMDX Sharpe Ratio Rank: 23
HFMDX Sortino Ratio Rank: 21
HFMDX Omega Ratio Rank: 20
HFMDX Calmar Ratio Rank: 37
HFMDX Martin Ratio Rank: 35

GASFX

GASFX Risk / Return Rank: 14
GASFX Sharpe Ratio Rank: 12
GASFX Sortino Ratio Rank: 12
GASFX Omega Ratio Rank: 11
GASFX Calmar Ratio Rank: 19
GASFX Martin Ratio Rank: 18

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.

HFMDX vs. GASFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Hennessy Cornerstone Mid Cap 30 Fund (HFMDX) and Hennessy Gas Utility Fund (GASFX). 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.

	HFMDX	GASFX	Difference
Sharpe ratio: Return per unit of total volatility	1.36	0.94	+0.42
Sortino ratio: Return per unit of downside risk	1.91	1.38	+0.53
Omega ratio: Gain probability vs. loss probability	1.24	1.16	+0.08
Calmar ratio: Return relative to maximum drawdown	2.31	1.60	+0.71
Martin ratio: Return relative to average drawdown	7.79	4.93	+2.86
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

HFMDX vs. GASFX - Sharpe Ratio Comparison

The current HFMDX Sharpe Ratio is 1.36, which is higher than the GASFX Sharpe Ratio of 0.94. The chart below compares the historical Sharpe Ratios of HFMDX and GASFX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	HFMDX	GASFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.36	0.94	+0.42
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.70	0.80	-0.10
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.57	0.52	+0.05
Sharpe Ratio (All Time) Calculated using the full available price history	0.44	0.57	-0.12

Drawdowns

HFMDX vs. GASFX - Drawdown Comparison

The maximum HFMDX drawdown since its inception was -61.25%, which is greater than GASFX's maximum drawdown of -49.33%. Use the drawdown chart below to compare losses from any high point for HFMDX and GASFX.

Drawdown Indicators

	HFMDX	GASFX	Difference
Max Drawdown Largest peak-to-trough decline	-61.25%	-49.33%	-11.92%
Max Drawdown (1Y) Largest decline over 1 year	-12.66%	-6.95%	-5.71%
Max Drawdown (3Y) Largest decline over 3 years	-27.76%	-12.43%	-15.33%
Max Drawdown (5Y) Largest decline over 5 years	-27.76%	-18.25%	-9.51%
Max Drawdown (10Y) Largest decline over 10 years	-56.14%	-37.23%	-18.91%
Current Drawdown Current decline from peak	-1.79%	-5.41%	+3.62%
Average Drawdown Average peak-to-trough decline	-12.25%	-7.86%	-4.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.75%	2.26%	+1.49%

Volatility

HFMDX vs. GASFX - Volatility Comparison

Hennessy Cornerstone Mid Cap 30 Fund (HFMDX) has a higher volatility of 6.30% compared to Hennessy Gas Utility Fund (GASFX) at 4.71%. This indicates that HFMDX's price experiences larger fluctuations and is considered to be riskier than GASFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	HFMDX	GASFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.30%	4.71%	+1.59%
Volatility (6M) Calculated over the trailing 6-month period	15.83%	9.18%	+6.65%
Volatility (1Y) Calculated over the trailing 1-year period	21.47%	11.83%	+9.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.36%	15.47%	+7.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.09%	17.68%	+7.41%

HFMDX vs. GASFX - Expense Ratio Comparison

HFMDX has a 1.36% expense ratio, which is higher than GASFX's 1.00% expense ratio.

Dividends

HFMDX vs. GASFX - Dividend Comparison

HFMDX's dividend yield for the trailing twelve months is around 0.61%, less than GASFX's 11.13% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GASFX Hennessy Gas Utility Fund	11.13%	12.06%	7.36%	6.63%	15.49%	10.63%	10.93%	7.11%	12.31%	2.96%	3.52%	5.64%
HFMDX Hennessy Cornerstone Mid Cap 30 Fund	0.61%	0.72%	18.84%	9.61%	21.66%	1.73%	0.00%	0.00%	40.95%	18.56%	0.64%	0.91%

Frequently Asked Questions

Can I hold both HFMDX and GASFX in my portfolio?

HFMDX and GASFX have a correlation of 0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, HFMDX or GASFX?

HFMDX has higher volatility (6.30%) compared to GASFX (4.71%). In terms of maximum drawdown, HFMDX dropped -61.25% vs GASFX's -49.33%.

Which has better risk-adjusted returns?

HFMDX currently has the higher Sharpe Ratio (1.36 vs 0.94), 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.