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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.
The historical rank and industry rank for PTT Global Chemical PCL's Graham Number or its related term are showing as below:
During the past 13 years, the highest Price to Graham Number ratio of PTT Global Chemical PCL was 11.88. The lowest was 0.52. And the median was 0.73.
PTGCF's Price-to-Graham-Number is not ranked *
in the Chemicals industry.
Industry Median: 1.44 * 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.
PTT Global Chemical PCL (OTCPK:PTGCF) 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.
PTT Global Chemical PCL's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
1.21
/
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.
PTT Global Chemical PCL Graham Number Related Terms
PTT Global Chemical PCL Graham Number Historical Data
* 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.
For the Chemicals subindustry, PTT Global Chemical PCL'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.
PTT Global Chemical PCL Price-to-Graham-Number vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, PTT Global Chemical PCL's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where PTT Global Chemical PCL'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.
PTT Global Chemical PCL (PTGCF) has a Graham Number of $N/A as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on PTT Global Chemical PCL and its competitors. Over the past decade, PTT Global Chemical PCL's Graham Number has ranged from 0.52 to 11.88. According to the industry distribution chart, PTT Global Chemical PCL ranks #999999 out of 1153 companies in the Chemicals industry.
Is PTT Global Chemical PCL's Graham Number too high?
PTT Global Chemical PCL's current Graham Number is $N/A. Over the past 10 years, this metric has ranged from a low of 0.52 to a high of 11.88. Based on the distribution chart, PTT Global Chemical PCL ranks #999999 out of 1153 companies in the Chemicals industry, which is in the bottom quartile relative to peers. Overall, PTT Global Chemical PCL has a GF Score™ of 34/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does PTT Global Chemical PCL's Graham Number compare to DOW?
According to the Chemicals industry distribution chart, PTT Global Chemical PCL ranks #999999 out of 1153 companies for Graham Number. This places PTT Global Chemical PCL in the lower half of its industry. The industry median Graham Number is 1.44. Historically, PTT Global Chemical PCL's own Graham Number has ranged from 0.52 to 11.88 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 Graham Number for a Chemicals company?
The median Graham Number among Chemicals companies is 1.44, based on 1,153 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 PTT Global Chemical PCL and its competitors. For the Chemicals industry, the median Graham Number is 1.44 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. PTT Global Chemical PCL'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 PTT Global Chemical PCL stock overvalued right now?
Based on GuruFocus' analysis, PTT Global Chemical PCL (PTGCF) is currently considered Significantly Overvalued. The stock's GF Value™ is $0.83, compared to a current price of $1.21 — trading 45.8% above its estimated fair value. The current Graham Number is $N/A. PTT Global Chemical PCL's overall GF Score™ is 34/100 with 8 warning signs to review. 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 PTT Global Chemical PCL (PTGCF), the current Graham Number is $N/A as of Mar. 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 PTT Global Chemical PCL (PTGCF) Overvalued in 2026?
Based on GuruFocus' analysis, PTT Global Chemical PCL stock appears to be overvalued.
The current stock price of $1.21 is trading 45.8% above its estimated GF Value™ of $0.83.
GuruFocus considers PTT Global Chemical PCL to be Significantly Overvalued.
Key valuation signals for PTGCF:
Graham Number: $N/A
GF Value™: $0.83 vs. price of $1.21 (45.8% above fair value)
No single metric tells the full story. See the PTGCF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
PTT Global Chemical PCL is a Thailand-based company. The reportable segments of the company are; Upstream (including Refinery, Aromatics and Olefins) which generates the majority of the revenue, Intermediates (including EO-Based Performance, Phenol and others) Polymers and Chemicals, Bio and Circularity, Performance Chemicals, Service and Others. Geographically located in Thailand, China, Vietnam, Singapore, India, Malaysia, USA, Indonesia, Japan, Germany, and Others.
34GF Score
Get the complete analysis for PTGCF
Graham Number is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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