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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 Exploration & Production PCL's Graham Number or its related term are showing as below:
FRA:NVAL'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.51 Med: 0.83 Max: 2.21
Current: 0.72
During the past 13 years, the highest Price to Graham Number ratio of PTT Exploration & Production PCL was 2.21. The lowest was 0.51. And the median was 0.83.
FRA:NVAL's Price-to-Graham-Number is ranked better than 73.4% of 609
companies
in the Oil & Gas industry
Industry Median: 1.07
vs FRA:NVAL: 0.72
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
PTT Exploration & Production PCL (FRA:NVAL) 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 Exploration & Production PCL's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
3.70
/
5.38
=
0.69
* 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 Exploration & Production PCL Graham Number Related Terms
PTT Exploration & Production 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.
PTT Exploration & Production PCL Graham Number Chart
FRA:NVAL vs COP, EOG, FANG: Graham Number Comparison
For the Oil & Gas E&P subindustry, PTT Exploration & Production 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 Exploration & Production PCL Price-to-Graham-Number vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, PTT Exploration & Production PCL's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where PTT Exploration & Production 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 Exploration & Production PCL (FRA:NVAL) has a Graham Number of €5.38 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on PTT Exploration & Production PCL and its competitors. This is 548% above median its historical median of 0.83. Over the past decade, PTT Exploration & Production PCL's Graham Number has ranged from 0.51 to 2.21. According to the industry distribution chart, PTT Exploration & Production PCL ranks #162 out of 609 companies in the Oil & Gas industry, placing it in the top 26.6%.
Is PTT Exploration & Production PCL's Graham Number too high?
PTT Exploration & Production PCL's current Graham Number of €5.38 is 548% above median its 10-year median of 0.83. Over the past 10 years, this metric has ranged from a low of 0.51 to a high of 2.21. Based on the distribution chart, PTT Exploration & Production PCL ranks #162 out of 609 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, PTT Exploration & Production PCL has a GF Score™ of 84/100, reflecting its overall financial health beyond just this single metric.
How does PTT Exploration & Production PCL's Graham Number compare to COP and EOG?
According to the Oil & Gas industry distribution chart, PTT Exploration & Production PCL ranks #162 out of 609 companies for Graham Number. This puts PTT Exploration & Production PCL in the upper half of its industry. The industry median Graham Number is 1.07. Historically, PTT Exploration & Production PCL's own Graham Number has ranged from 0.51 to 2.21 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 an Oil & Gas company?
The median Graham Number among Oil & Gas companies is 1.07, based on 609 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 Exploration & Production PCL and its competitors. For the Oil & Gas industry, the median Graham Number is 1.07 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. PTT Exploration & Production PCL's current Graham Number is €5.38, which is 548% above median its own 10-year median of 0.83. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is PTT Exploration & Production PCL stock overvalued right now?
PTT Exploration & Production PCL (FRA:NVAL) has a current Graham Number of €5.38. The stock's GF Value™ is €3.39, compared to a current price of €3.70 — trading 9.1% above its estimated fair value. The current Graham Number is €5.38, which is 548% above median its 10-year median of 0.83. PTT Exploration & Production PCL's overall GF Score™ is 84/100 with 2 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 Exploration & Production PCL (FRA:NVAL), the current Graham Number is €5.38 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 Exploration & Production PCL (FRA:NVAL) Overvalued in 2026?
Based on GuruFocus' analysis, PTT Exploration & Production PCL stock appears to be overvalued.
The current stock price of €3.70 is trading 9.1% above its estimated GF Value™ of €3.39.
Key valuation signals for FRA:NVAL:
Graham Number: €5.38 (548% above median its 10-year median of 0.83)
GF Value™: €3.39 vs. price of €3.70 (9.1% above fair value)
No single metric tells the full story. See the FRA:NVAL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
PTT Exploration & Production PCL Business Description
PTT Exploration & Production PCL is engaged in the exploration and production of petroleum in Thailand and overseas, and related businesses. Its segments include Exploration and production, which operates in oil and gas exploration and production both domestically and overseas, including overseas gas transportation pipeline, either as an operator or as a joint venture partner with international oil and gas companies. Its domestic projects are located in the Gulf of Thailand. Overseas projects are located in Southeast Asia, the Middle East, Africa, and other regions. Other businesses and corporate consist of investments in other businesses, such as new businesses for energy transition, related businesses, and corporate.
84GF Score
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