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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.
As of today (2026-08-26), the stock price of Sea Oil PCL is ฿3.40. Sea Oil PCL's graham number for the quarter that ended in Jun. 2026 was ฿6.35. Therefore, Sea Oil PCL's Price to Graham Number ratio for today is 0.54.
The historical rank and industry rank for Sea Oil PCL's Graham Number or its related term are showing as below:
BKK:SEAOIL'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.38 Med: 0.57 Max: 7.53
Current: 0.54
During the past 13 years, the highest Price to Graham Number ratio of Sea Oil PCL was 7.53. The lowest was 0.38. And the median was 0.57.
BKK:SEAOIL's Price-to-Graham-Number is ranked better than 83.84% of 619
companies
in the Oil & Gas industry
Industry Median: 1.08
vs BKK:SEAOIL: 0.54
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Sea Oil PCL (BKK:SEAOIL) 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.
Sea Oil PCL's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Jun. 2026 )
=
3.40
/
6.35
=
0.54
* 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.
Sea Oil PCL Graham Number Related Terms
Sea Oil PCL Graham Number Historical Data
* Premium members only.
The historical data trend for Sea Oil PCL'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.
BKK:SEAOIL vs MPC, VLO, PSX: Graham Number Comparison
For the Oil & Gas Refining & Marketing subindustry, Sea Oil 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.
Sea Oil PCL Price-to-Graham-Number vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Sea Oil PCL's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Sea Oil 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.
Sea Oil PCL (BKK:SEAOIL) has a Graham Number of ฿6.35 as of Jun. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Sea Oil PCL and its competitors. According to the industry distribution chart, Sea Oil PCL ranks #100 out of 619 companies in the Oil & Gas industry, placing it in the top 16.2%.
Is Sea Oil PCL's Graham Number too high?
Sea Oil PCL's current Graham Number is ฿6.35. Based on the distribution chart, Sea Oil PCL ranks #100 out of 619 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, Sea Oil PCL has a GF Score™ of 84/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sea Oil PCL's Graham Number compare to MPC and VLO?
According to the Oil & Gas industry distribution chart, Sea Oil PCL ranks #100 out of 619 companies for Graham Number. This places Sea Oil PCL in the top 16% of its industry — outperforming the majority of peers. The industry median Graham Number is 1.08. 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 1.08, based on 619 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 Sea Oil PCL and its competitors. For the Oil & Gas industry, the median Graham Number is 1.08 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sea Oil PCL's current Graham Number is ฿6.35. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sea Oil PCL stock overvalued right now?
Based on GuruFocus' analysis, Sea Oil PCL (BKK:SEAOIL) is currently considered Modestly Undervalued. The stock's GF Value™ is ฿3.98, compared to a current price of ฿3.40 — trading 14.6% below its estimated fair value. The current Graham Number is ฿6.35. Sea Oil PCL's overall GF Score™ is 84/100 with 4 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 Sea Oil PCL (BKK:SEAOIL), the current Graham Number is ฿6.35 as of Jun. 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 Sea Oil PCL (BKK:SEAOIL) Overvalued in 2026?
Based on GuruFocus' analysis, Sea Oil PCL stock appears to be undervalued.
The current stock price of ฿3.40 is trading 14.6% below its estimated GF Value™ of ฿3.98.
GuruFocus considers Sea Oil PCL to be Modestly Undervalued.
Key valuation signals for BKK:SEAOIL:
Graham Number: ฿6.35
GF Value™: ฿3.98 vs. price of ฿3.40 (14.6% below fair value)
No single metric tells the full story. See the BKK:SEAOIL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sea Oil PCL engaged in the retail sale of fuel oil and lubricant oil. The company also provides service and supply management for clients in the oil industry's exploration and productions. The operating segments of the company are; Maritime sales of fuel oil and lubricant oil, Land sales and other channels' sales of fuel oil and lubricant oil, Catering service which provides service and supply management for clients in the oil industry's exploration and production, and Lease of solvent and petrochemical factory. The company derives the majority of its revenue from the Maritime sales of fuel oil and lubricant oil segment. The Group operates in both Thailand and foreign countries.
84GF Score
Get the complete analysis for BKK:SEAOIL
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