Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Ptt PCLPUTRF -17.06%79 Shiller PE Ratio is 7.25 as of Aug. 13, 2026, which is 32% below its 10-year median of 10.69. GuruFocus rates PUTRF with a GF Score™ of 79/100 and a GF Value™ of $0.68. The stock has 8 warning signs investors should review. Among 438 Oil & Gas companies, Ptt PCL ranks better than 78.31% on this metric.
As of today (2026-08-13), Ptt PCL's current share price is $0.86951. Ptt PCL's E10 for the quarter that ended in Mar. 2026 was $0.12. Ptt PCL's Shiller PE Ratio for today is 7.25.
The historical rank and industry rank for Ptt PCL's Shiller PE Ratio or its related term are showing as below:
PUTRF'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 7.68 Med: 10.69 Max: 18.32
Current: 9.52
During the past years, Ptt PCL's highest Shiller PE Ratio was 18.32. The lowest was 7.68. And the median was 10.69.
PUTRF's Shiller PE Ratio is ranked better than 78.31% of 438
companies
in the Oil & Gas industry
Industry Median: 17.445
vs PUTRF: 9.52
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.
Ptt PCL's adjusted earnings per share data for the three months ended in Mar. 2026 was $0.028. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $0.12 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Ptt PCL (OTCPK:PUTRF) Shiller PE Ratio Explanation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
Ptt PCL Shiller PE Ratio Related Terms
Ptt PCL Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Ptt PCL's Shiller PE Ratio 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 Oil & Gas Integrated subindustry, Ptt PCL's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio 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 PCL Shiller PE Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Ptt PCL's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Ptt PCL's Shiller PE Ratio falls into.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
Ptt PCL's Shiller PE Ratio for today is calculated as
* 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 PCL's E10 for the quarter that ended in Mar. 2026 is calculated as:
For example, Ptt PCL's adjusted earnings per share data for the three months ended in Mar. 2026 was:
Add all the adjusted EPS together and divide 10 will get our E10.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
Ptt PCL (PUTRF) has a Shiller PE Ratio of 7.25 as of Aug. 13, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Ptt PCL and its competitors. This is 32% below median its historical median of 10.69. Over the past decade, Ptt PCL's Shiller PE Ratio has ranged from 7.68 to 18.32. According to the industry distribution chart, Ptt PCL ranks #95 out of 438 companies in the Oil & Gas industry, placing it in the top 21.7%.
Is Ptt PCL's Shiller PE Ratio too high?
Ptt PCL's current Shiller PE Ratio of 7.25 is 32% below median its 10-year median of 10.69. Over the past 10 years, this metric has ranged from a low of 7.68 to a high of 18.32. The Oil & Gas industry median Shiller PE Ratio is 17.45. Ptt PCL's value of 7.25 is 58.4% below this industry median. Based on the distribution chart, Ptt PCL ranks #95 out of 438 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, Ptt PCL has a GF Score™ of 79/100, reflecting its overall financial health beyond just this single metric.
How does Ptt PCL's Shiller PE Ratio compare to XOM and CVX?
According to the Oil & Gas industry distribution chart, Ptt PCL ranks #95 out of 438 companies for Shiller PE Ratio. This places Ptt PCL in the top 22% of its industry — outperforming the majority of peers. The industry median Shiller PE Ratio is 17.45. Ptt PCL's value of 7.25 is 58.4% below this benchmark. Historically, Ptt PCL's own Shiller PE Ratio has ranged from 7.68 to 18.32 over the past decade. While the company's 10-year median is 10.69 vs. the industry median of 17.45, Ptt PCL has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shiller PE Ratio for an Oil & Gas company?
The median Shiller PE Ratio among Oil & Gas companies is 17.45, based on 438 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Ptt PCL's current Shiller PE Ratio of 7.25 is 58.4% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Ptt PCL and its competitors. For the Oil & Gas industry, the median Shiller PE Ratio is 17.45 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ptt PCL's current Shiller PE Ratio is 7.25, which is 32% below median its own 10-year median of 10.69. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ptt PCL stock overvalued right now?
Ptt PCL (PUTRF) has a current Shiller PE Ratio of 7.25. The stock's GF Value™ is $0.68, compared to a current price of $0.87 — trading 27.9% above its estimated fair value. The current Shiller PE Ratio is 7.25, which is 32% below median its 10-year median of 10.69 and 58.4% below the Oil & Gas industry median of 17.45. Ptt PCL's overall GF Score™ is 79/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Ptt PCL (PUTRF), the current Shiller PE Ratio is 7.25 as of Aug. 13, 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 PCL (PUTRF) Overvalued in 2026?
Based on GuruFocus' analysis, Ptt PCL stock appears to be overvalued.
The current stock price of $0.87 is trading 27.9% above its estimated GF Value™ of $0.68.
Key valuation signals for PUTRF:
Shiller PE Ratio: 7.25 (32% below median its 10-year median of 10.69)
GF Value™: $0.68 vs. price of $0.87 (27.9% above fair value)
Industry Position: 58.4% below the Oil & Gas median (#95 of 438)
No single metric tells the full story. See the PUTRF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ptt PCL is an integrated national petroleum and petrochemical company based out of Thailand. The Group is organized into business groups based on types of products and services. The segments of the Group are Upstream petroleum and Natural gas business group which is further divided into Petroleum exploration and production business and Natural gas business. Downstream petroleum business group is divided into Oil and retail business; International trading business and Petrochemical and Refining business. New business and sustainability group includes emphasis on decarbonization to achieve the Net Zero Emission.
79GF Score
Get the complete analysis for PUTRF
Shiller PE Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
PUTRF has been successfully added to your 
