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Clean Energy Fuels has the GF Score of 68, which implies that the company
might have
Poor future performance potential.
The GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation, which has been found to be closely correlated to the long-term performances of stocks by backtesting from 2006 to 2021. The stocks with a higher GF Score generally generate higher returns than those with lower GF Scores. Therefore, when picking stocks, investors should invest in companies with high GF Scores. The GF Score ranges from 0 to 100, with 100 as the highest rank.
GF Score takes following five key aspects into consideration:
Each one of these components is ranked and the ranks also have positive correlation with the long term performances of stocks. The GF score is calculated using the five key aspects of analysis. Through backtesting, we know that each of these key aspects has a different impact on the stock price performance. Thus, they are weighted differently when calculating the total score. The Profitability Rank and the Growth Rank are weighted fully, while other parameters have less weight.
Based on research and backtesting result, GuruFocus believes Clean Energy Fuels
might have
Poor future performance potential.
Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.
Clean Energy Fuels (STU:WIQ) GF Score Explanation
Based on the historical long-term performances among five valuation aspects, the GF Score is found to be closely correlated to the long-term performances of stocks. It ranges from 0 to 100, with 100 as the highest. GuruFocus divided GF Score into following 5 categories:
GF Score
Performance Potential and All-in-One Screener Examples (1)
(1) These are some simple examples. You can access our GF Score filter under All-in-One Screener’s Fundamental tab.
Clean Energy Fuels GF Score Related Terms
STU:WIQ vs SGU, FGPR, HEOL: GF Score Comparison
For the Oil & Gas Refining & Marketing subindustry, Clean Energy Fuels's GF Score, along with its competitors' market caps and GF Score data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Clean Energy Fuels GF Score vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Clean Energy Fuels's GF Score distribution charts can be found below:
* The bar in red indicates where Clean Energy Fuels's GF Score falls into.
Clean Energy Fuels (STU:WIQ) has a GF Score of 68 as of Jul. 15, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Clean Energy Fuels and its competitors. This is 10% above median its historical median of 62.00. Over the past decade, Clean Energy Fuels' GF Score has ranged from 20.00 to 79.00.
Is Clean Energy Fuels' GF Score too high?
Clean Energy Fuels' current GF Score of 68 is 10% above median its 10-year median of 62.00. Over the past 10 years, this metric has ranged from a low of 20.00 to a high of 79.00. Overall, Clean Energy Fuels has a GF Score™ of 68/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Clean Energy Fuels' GF Score compare to SGU and FGPR?
Clean Energy Fuels' GF Score of 68 can be compared against companies in the Oil & Gas industry. Historically, Clean Energy Fuels' own GF Score has ranged from 20.00 to 79.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Score for an Oil & Gas company?
A good GF Score depends on the Oil & Gas industry context. However, GF Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high GF Score mean?
A high GF Score can signal that a stock is expensive relative to its fundamentals. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Clean Energy Fuels and its competitors. Clean Energy Fuels's current GF Score is 68, which is 10% above median its own 10-year median of 62.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Clean Energy Fuels stock overvalued right now?
Based on GuruFocus' analysis, Clean Energy Fuels (STU:WIQ) is currently considered Modestly Undervalued. The stock's GF Value™ is €2.60, compared to a current price of €2.03 — trading 21.9% below its estimated fair value. The current GF Score is 68, which is 10% above median its 10-year median of 62.00. Clean Energy Fuels' overall GF Score™ is 68/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Score calculated?
GF Score is calculated from a company's financial statements. For Clean Energy Fuels (STU:WIQ), the current GF Score is 68 as of Jul. 15, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Clean Energy Fuels (STU:WIQ) Overvalued in 2026?
Based on GuruFocus' analysis, Clean Energy Fuels stock appears to be undervalued.
The current stock price of €2.03 is trading 21.9% below its estimated GF Value™ of €2.60.
GuruFocus considers Clean Energy Fuels to be Modestly Undervalued.
Key valuation signals for STU:WIQ:
GF Score: 68 (10% above median its 10-year median of 62.00)
GF Value™: €2.60 vs. price of €2.03 (21.9% below fair value)
No single metric tells the full story. See the STU:WIQ stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Clean Energy Fuels Corp is a natural gas marketer and retailer operating in the United States and Canada. The company supplies compressed natural gas and liquefied natural gas for the United States (U.S.) and Canadian transportation markets. The majority of revenue is generated within the U.S. and mostly consists of compressed natural gas. The firm operates by purchasing natural gas from local utilities; compressing, cooling, or liquefying it at company-owned plants; and selling natural gas products through company-owned or customer-owned fueling stations. It also builds, operates, and maintains natural gas fueling stations for customers.
68GF Score
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