The Altman Z-Score is a model designed to predict the likelihood of a company going bankrupt within the next two years. Created by American finance professor Edward Altman in 1968, the model is specifically designed for publicly traded manufacturing companies with assets greater than $1 million.
Warning Sign:
Altman Z-score of -0.62 is in distress zone. This implies bankruptcy possibility in the next two years.
Clean Energy Fuels has a Altman Z-Score of -0.61, indicating it is in Distress Zones. This implies bankrupcy possibility in the next two years.
The zones of discrimination were as such:
When Altman Z-Score <= 1.8, it is in Distress Zones.
When Altman Z-Score >= 3, it is in Safe Zones.
When Altman Z-Score is between 1.8 and 3, it is in Grey Zones.
The historical rank and industry rank for Clean Energy Fuels's Altman Z-Score or its related term are showing as below:
HAM:WIQ'
s Altman Z-Score Range Over the Past 10 Years
Min: -0.98 Med: 0.61 Max: 7.78
Current: -0.62
During the past 13 years, Clean Energy Fuels's highest Altman Z-Score was 7.78. The lowest was -0.98. And the median was 0.61.
Clean Energy Fuels (HAM:WIQ) Altman Z-Score Explanation
X1: The Working Capital/Total Assets (WC/TA) ratio is a measure of the net liquid assets of the firm relative to the total capitalization. Working capital is defined as the difference between current assets and current liabilities. Ordinarily, a firm experiencing consistent operating losses will have shrinking current assets in relation to total assets. Altman found this one proved to be the most valuable liquidity ratio comparing with the current ratio and the quick ratio. This is however the least significant of the five factors.
X2: Retained Earnings/Total Assets: the RE/TA ratio measures the leverage of a firm. Retained earnings is the account which reports the total amount of reinvested earnings and/or losses of a firm over its entire life. Those firms with high RE, relative to TA, have financed their assets through retention of profits and have not utilized as much debt.
X3, Earnings Before Interest and Taxes/Total Assets (EBIT/TA): This ratio is a measure of the true productivity of the firm's assets, independent of any tax or leverage factors. Since a firm's ultimate existence is based on the earning power of its assets, this ratio appears to be particularly appropriate for studies dealing with corporate failure. This ratio continually outperforms other profitability measures, including cash flow.
X4, Market Value of Equity/Book Value of Total Liabilities (MVE/TL): The measure shows how much the firm's assets can decline in value (measured by market value of equity plus debt) before the liabilities exceed the assets and the firm becomes insolvent.
X5, Revenue/Total Assets (S/TA): The capital-turnover ratio is a standard financial ratio illustrating the sales generating ability of the firm's assets.
Altman Z-Score does not apply to financial companies.
Clean Energy Fuels Altman Z-Score Related Terms
Clean Energy Fuels Altman Z-Score Historical Data
* Premium members only.
The historical data trend for Clean Energy Fuels's Altman Z-Score can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
HAM:WIQ vs SGU, FGPR, HEOL: Altman Z-Score Comparison
For the Oil & Gas Refining & Marketing subindustry, Clean Energy Fuels's Altman Z-Score, along with its competitors' market caps and Altman Z-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 Altman Z-Score vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Clean Energy Fuels's Altman Z-Score distribution charts can be found below:
* The bar in red indicates where Clean Energy Fuels's Altman Z-Score falls into.
Altman Z-Score model is an accurate forecaster of failure up to two years prior to distress. It can be considered the assessment of the distress of industrial corporations.
Clean Energy Fuels's Altman Z-Score for today is calculated with this formula:
Z
=
1.2
*
X1
+
1.4
*
X2
+
3.3
*
X3
+
0.6
*
X4
+
1.0
*
X5
=
1.2
*
0.1902
+
1.4
*
-1.2027
+
3.3
*
-0.047
+
0.6
*
0.9662
+
1.0
*
0.4204
=
-0.61
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency. GuruFocus does not calculate Altman Z-Score when X4 or X5 value is 0.
Clean Energy Fuels (HAM:WIQ) has a Altman Z-Score of -0.61 as of Jul. 01, 2026. The Altman Z-score measures a company's bankruptcy risk. View historical data on Clean Energy Fuels and its competitors. According to the industry distribution chart, Clean Energy Fuels ranks #781 out of 898 companies in the Oil & Gas industry, placing it in the top 87%.
Is Clean Energy Fuels' Altman Z-Score too high?
Clean Energy Fuels' current Altman Z-Score is -0.61. Based on the distribution chart, Clean Energy Fuels ranks #781 out of 898 companies in the Oil & Gas industry, which is in the bottom quartile relative to peers. Overall, Clean Energy Fuels has a GF Score™ of 67/100, reflecting its overall financial health beyond just this single metric.
How does Clean Energy Fuels' Altman Z-Score compare to SGU and FGPR?
According to the Oil & Gas industry distribution chart, Clean Energy Fuels ranks #781 out of 898 companies for Altman Z-Score. This places Clean Energy Fuels in the lower half of its industry. The industry median Altman Z-Score is 1.89. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Altman Z-Score for an Oil & Gas company?
The median Altman Z-Score among Oil & Gas companies is 1.89, based on 898 companies in the industry. Companies in the top quartile (top 25%) have a Altman Z-Score significantly above this median, while those in the bottom quartile fall well below. However, Altman Z-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 Altman Z-Score mean?
A high Altman Z-Score can signal that a stock is expensive relative to its fundamentals. The Altman Z-score measures a company's bankruptcy risk. View historical data on Clean Energy Fuels and its competitors. For the Oil & Gas industry, the median Altman Z-Score is 1.89 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Clean Energy Fuels's current Altman Z-Score is -0.61. 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?
Clean Energy Fuels (HAM:WIQ) has a current Altman Z-Score of -0.61. The stock's GF Value™ is €2.48, compared to a current price of €1.71 — trading 31.3% below its estimated fair value. The current Altman Z-Score is -0.61. Clean Energy Fuels' overall GF Score™ is 67/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Altman Z-Score calculated?
Altman Z-Score is calculated from a company's financial statements. For Clean Energy Fuels (HAM:WIQ), the current Altman Z-Score is -0.61 as of Jul. 01, 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 (HAM:WIQ) Overvalued in 2026?
Based on GuruFocus' analysis, Clean Energy Fuels stock appears to be undervalued.
The current stock price of €1.71 is trading 31.3% below its estimated GF Value™ of €2.48.
Key valuation signals for HAM:WIQ:
Altman Z-Score: -0.61
GF Value™: €2.48 vs. price of €1.71 (31.3% below fair value)
No single metric tells the full story. See the HAM: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.
67GF Score
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