Lanna Resources PCLBKK:LANNA-R 64 Graham Number is ฿21.05 as of Mar. 2026, which is 100% below its 10-year median of 0.69. GuruFocus rates BKK:LANNA-R with a GF Score™ of 64/100 and a GF Value™ of ฿10.94. The stock has 5 warning signs investors should review. Among 82 Other Energy Sources companies, Lanna Resources PCL ranks better than 80.49% on this metric.
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 (2026-06-30), the stock price of Lanna Resources PCL is ฿15.31156. Lanna Resources PCL's graham number for the quarter that ended in Mar. 2026 was ฿21.05. Therefore, Lanna Resources PCL's Price to Graham Number ratio for today is 0.73.
The historical rank and industry rank for Lanna Resources PCL's Graham Number or its related term are showing as below:
BKK:LANNA-R'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.33 Med: 0.69 Max: 1.5
Current: 0.68
During the past 13 years, the highest Price to Graham Number ratio of Lanna Resources PCL was 1.50. The lowest was 0.33. And the median was 0.69.
BKK:LANNA-R's Price-to-Graham-Number is ranked better than 80.49% of 82
companies
in the Other Energy Sources industry
Industry Median: 1.06
vs BKK:LANNA-R: 0.68
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Lanna Resources PCL (BKK:LANNA-R) 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.
Lanna Resources PCL's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
15.31156
/
21.05
=
0.73
* 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.
Lanna Resources PCL Graham Number Related Terms
Lanna Resources PCL Graham Number Historical Data
* Premium members only.
The historical data trend for Lanna Resources 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.
For the Thermal Coal subindustry, Lanna Resources 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.
Lanna Resources PCL Price-to-Graham-Number vs Other Energy Sources Industry
For the Other Energy Sources industry and Energy sector, Lanna Resources PCL's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Lanna Resources 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.
Lanna Resources PCL (BKK:LANNA-R) has a Graham Number of ฿21.05 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Lanna Resources PCL and its competitors. This is 2951% above median its historical median of 0.69. Over the past decade, Lanna Resources PCL's Graham Number has ranged from 0.33 to 1.50. According to the industry distribution chart, Lanna Resources PCL ranks #16 out of 82 companies in the Other Energy Sources industry, placing it in the top 19.5%.
Is Lanna Resources PCL's Graham Number too high?
Lanna Resources PCL's current Graham Number of ฿21.05 is 2951% above median its 10-year median of 0.69. Over the past 10 years, this metric has ranged from a low of 0.33 to a high of 1.50. Based on the distribution chart, Lanna Resources PCL ranks #16 out of 82 companies in the Other Energy Sources industry, which is in the top quartile — a strong position relative to peers. Overall, Lanna Resources PCL has a GF Score™ of 64/100, reflecting its overall financial health beyond just this single metric.
How does Lanna Resources PCL's Graham Number compare to CNR?
According to the Other Energy Sources industry distribution chart, Lanna Resources PCL ranks #16 out of 82 companies for Graham Number. This places Lanna Resources PCL in the top 20% of its industry — outperforming the majority of peers. The industry median Graham Number is 1.06. Historically, Lanna Resources PCL's own Graham Number has ranged from 0.33 to 1.50 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 Other Energy Sources company?
The median Graham Number among Other Energy Sources companies is 1.06, based on 82 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 Lanna Resources PCL and its competitors. For the Other Energy Sources industry, the median Graham Number is 1.06 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Lanna Resources PCL's current Graham Number is ฿21.05, which is 2951% above median its own 10-year median of 0.69. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Lanna Resources PCL stock overvalued right now?
Lanna Resources PCL (BKK:LANNA-R) has a current Graham Number of ฿21.05. The stock's GF Value™ is ฿10.94, compared to a current price of ฿15.31 — trading 40% above its estimated fair value. The current Graham Number is ฿21.05, which is 2951% above median its 10-year median of 0.69. Lanna Resources PCL's overall GF Score™ is 64/100 with 5 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 Lanna Resources PCL (BKK:LANNA-R), the current Graham Number is ฿21.05 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 Lanna Resources PCL (BKK:LANNA-R) Overvalued in 2026?
Based on GuruFocus' analysis, Lanna Resources PCL stock appears to be overvalued.
The current stock price of ฿15.31 is trading 40% above its estimated GF Value™ of ฿10.94.
Key valuation signals for BKK:LANNA-R:
Graham Number: ฿21.05 (2951% above median its 10-year median of 0.69)
GF Value™: ฿10.94 vs. price of ฿15.31 (40% above fair value)
No single metric tells the full story. See the BKK:LANNA-R stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Lanna Resources PCL is a Thailand-based company engaged in the coal industry. It operates through the segments of Domestic Coal, which purchases and sells coal, Overseas Coal which produces and sells coal, the Ethanol segment involves production and selling of ethanol, Wood pellet segment which produces and sells wood pellet, and Soil conditioner segment. Prime revenue for the firm is derived through the Overseas Coal segment. The company has operational footprints in various countries including Thailand, India, Singapore, China, Dubai and others.
64GF Score
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