Graham Number is a figure that measures a stock's fundamental value by taking into account the company's earnings per share and book value per share. The Graham number is the upper bound of the price range that a defensive investor should pay for the stock. According to the theory, any stock price below the Graham number is considered undervalued, and thus worth investing in.
As of today (2026-07-06), the stock price of Clean Tech Biofuels is $0.0001. Clean Tech Biofuels's graham number for the quarter that ended in Sep. 2019 was $N/A. Therefore, Clean Tech Biofuels's Price to Graham Number ratio for today is N/A.
The historical rank and industry rank for Clean Tech Biofuels's Graham Number or its related term are showing as below:
CLTH's Price-to-Graham-Number is not ranked *
in the Chemicals industry.
Industry Median: 1.57 * Ranked among companies with meaningful Price-to-Graham-Number only.
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Clean Tech Biofuels (OTCPK:CLTH) Graham Number Explanation
Ben Graham actually did not publish a formula like this. But he wrote in The Intelligent Investor (1948 version) regarding to the criteria for purchases:
Current price should not be more than 15 times average earnings of the past three years.
Current price should not be more than 1.5 times the book value last reported. However, a multiplier of earnings below 15 could justify a correspondingly higher multiplier of assets. As a rule of thumb we suggest that the product of the multiplier times the ratio of price to book value should not exceed 22.5. (This figure corresponds to 15 times earnings and 1.5 times book value. It would admit an issue selling at only 9 times earnings and 2.5 times asset value, etc.)
Unlike valuation methods such as DCF or Discounted Earnings, the Graham number does not take growth into the valuation. Unlike the valuation methods based on book value alone, it takes into account the earnings power. Therefore, the Graham Number is a combination of asset valuation and earnings power valuation.
In general, the Graham number is a very conservative way of valuing a stock. It cannot be applied to companies with negative book values.
Clean Tech Biofuels's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Sep. 2019 )
=
0.0001
/
N/A
=
N/A
* 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.
Be Aware
Please keep these in mind:
1. Graham Number does not take growth into account. Therefore it underestimates the values of the companies that have good earnings growth. We feel that if the earnings per share grows more than 10% a year, Graham Number underestimates the value.
2. Graham Number punishes the companies that have temporarily low earnings. Therefore, an average of earnings makes more sense in the calculation of Graham Number.
3. Graham Numbers underestimates companies that are light with book.
Clean Tech Biofuels Graham Number Related Terms
Clean Tech Biofuels Graham Number Historical Data
* Premium members only.
The historical data trend for Clean Tech Biofuels's Graham Number 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.
CLTH vs ETCK, CBNT, PVNNF: Graham Number Comparison
For the Specialty Chemicals subindustry, Clean Tech Biofuels's Price-to-Graham-Number, along with its competitors' market caps and Price-to-Graham-Number 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 Tech Biofuels Price-to-Graham-Number vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, Clean Tech Biofuels's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Clean Tech Biofuels's Price-to-Graham-Number falls into.
* 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.
Clean Tech Biofuels (CLTH) has a Graham Number of $N/A as of Sep. 2019. The Graham Number values a company based on its per-share earnings and book value. View historical data on Clean Tech Biofuels and its competitors.
Is Clean Tech Biofuels' Graham Number too high?
Clean Tech Biofuels' current Graham Number is $N/A.
How does Clean Tech Biofuels' Graham Number compare to ETCK and CBNT?
Clean Tech Biofuels' Graham Number of $N/A can be compared against companies in the Chemicals industry. The industry median Graham Number is 1.57. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Graham Number for a Chemicals company?
The median Graham Number among Chemicals companies is 1.57, based on 1,148 companies in the industry. Companies in the top quartile (top 25%) have a Graham Number significantly above this median, while those in the bottom quartile fall well below. However, Graham Number 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 Graham Number mean?
A high Graham Number can signal that a stock is expensive relative to its fundamentals. The Graham Number values a company based on its per-share earnings and book value. View historical data on Clean Tech Biofuels and its competitors. For the Chemicals industry, the median Graham Number is 1.57 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Clean Tech Biofuels's current Graham Number is $N/A. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Clean Tech Biofuels stock overvalued right now?
Clean Tech Biofuels (CLTH) has a current Graham Number of $N/A. The current Graham Number is $N/A. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Graham Number calculated?
Graham Number is calculated from a company's financial statements. For Clean Tech Biofuels (CLTH), the current Graham Number is $N/A as of Sep. 2019. 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.
Clean Tech Biofuels Inc is a development stage company engaged in providing cellulosic biomass derived from municipal solid waste (MSW). The company is involved in producing energy and other chemical products, and recyclables (metals, plastics, and glass) from the MSW. Its biomass recovery process which is based on the pressurized steam classification (PSC) technology cleans and separates MSW and generates a clean, homogeneous biomass feedstock. It focuses on designing, building, and operating a commercial biomass recovery plant that will allow the company to produce biomass feedstock for its customers.
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