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.
Qualitech PCLBKK:QLT-R 65 Shiller PE Ratio is 50.50 as of Aug. 29, 2026, which is 523% above its 10-year median of 8.11. GuruFocus rates BKK:QLT-R with a GF Score™ of 65/100 and a GF Value™ of ฿3.61 (Significantly Undervalued). The stock has 3 warning signs investors should review. Among 541 Business Services companies, Qualitech PCL ranks worse than 88.35% on this metric.
As of today (2026-08-29), Qualitech PCL's current share price is ฿2.02. Qualitech PCL's E10 for the quarter that ended in Jun. 2026 was ฿0.04. Qualitech PCL's Shiller PE Ratio for today is 50.50.
The historical rank and industry rank for Qualitech PCL's Shiller PE Ratio or its related term are showing as below:
BKK:QLT-R'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 4.36 Med: 8.11 Max: 53
Current: 52.94
During the past years, Qualitech PCL's highest Shiller PE Ratio was 53.00. The lowest was 4.36. And the median was 8.11.
BKK:QLT-R's Shiller PE Ratio is ranked worse than 88.35% of 541
companies
in the Business Services industry
Industry Median: 19.18
vs BKK:QLT-R: 52.94
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.
Qualitech PCL's adjusted earnings per share data for the three months ended in Jun. 2026 was ฿-0.075. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is ฿0.04 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Qualitech PCL (BKK:QLT-R) 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.
Qualitech PCL Shiller PE Ratio Related Terms
Qualitech PCL Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Qualitech 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.
BKK:QLT-R vs CTAS, CPRT, GPN: Shiller PE Ratio Comparison
For the Specialty Business Services subindustry, Qualitech 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.
Qualitech PCL Shiller PE Ratio vs Business Services Industry
For the Business Services industry and Industrials sector, Qualitech PCL's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Qualitech 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.
Qualitech 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.
Qualitech PCL's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, Qualitech PCL's adjusted earnings per share data for the three months ended in Jun. 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.
Qualitech PCL (BKK:QLT-R) has a Shiller PE Ratio of 50.50 as of Aug. 29, 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 Qualitech PCL and its competitors. This is 523% above median its historical median of 8.11. Over the past decade, Qualitech PCL's Shiller PE Ratio has ranged from 4.36 to 53.00. According to the industry distribution chart, Qualitech PCL ranks #478 out of 541 companies in the Business Services industry, placing it in the top 88.4%.
Is Qualitech PCL's Shiller PE Ratio too high?
Qualitech PCL's current Shiller PE Ratio of 50.50 is 523% above median its 10-year median of 8.11. Over the past 10 years, this metric has ranged from a low of 4.36 to a high of 53.00. The Business Services industry median Shiller PE Ratio is 19.18. Qualitech PCL's value of 50.50 is 163.3% above this industry median. Based on the distribution chart, Qualitech PCL ranks #478 out of 541 companies in the Business Services industry, which is in the bottom quartile relative to peers. Overall, Qualitech PCL has a GF Score™ of 65/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Qualitech PCL's Shiller PE Ratio compare to CTAS and CPRT?
According to the Business Services industry distribution chart, Qualitech PCL ranks #478 out of 541 companies for Shiller PE Ratio. This places Qualitech PCL in the lower half of its industry. The industry median Shiller PE Ratio is 19.18. Qualitech PCL's value of 50.50 is 163.3% above this benchmark. Historically, Qualitech PCL's own Shiller PE Ratio has ranged from 4.36 to 53.00 over the past decade. While the company's 10-year median is 8.11 vs. the industry median of 19.18, Qualitech PCL has consistently been above 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 a Business Services company?
The median Shiller PE Ratio among Business Services companies is 19.18, based on 541 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. Qualitech PCL's current Shiller PE Ratio of 50.50 is 163.3% above 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 Qualitech PCL and its competitors. For the Business Services industry, the median Shiller PE Ratio is 19.18 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Qualitech PCL's current Shiller PE Ratio is 50.50, which is 523% above median its own 10-year median of 8.11. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Qualitech PCL stock overvalued right now?
Based on GuruFocus' analysis, Qualitech PCL (BKK:QLT-R) is currently considered Significantly Undervalued. The stock's GF Value™ is ฿3.61, compared to a current price of ฿2.02 — trading 44% below its estimated fair value. The current Shiller PE Ratio is 50.50, which is 523% above median its 10-year median of 8.11 and 163.3% above the Business Services industry median of 19.18. Qualitech PCL's overall GF Score™ is 65/100 with 3 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 Qualitech PCL (BKK:QLT-R), the current Shiller PE Ratio is 50.50 as of Aug. 29, 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 Qualitech PCL (BKK:QLT-R) Overvalued in 2026?
Based on GuruFocus' analysis, Qualitech PCL stock appears to be undervalued.
The current stock price of ฿2.02 is trading 44% below its estimated GF Value™ of ฿3.61.
GuruFocus considers Qualitech PCL to be Significantly Undervalued.
Key valuation signals for BKK:QLT-R:
Shiller PE Ratio: 50.50 (523% above median its 10-year median of 8.11)
GF Value™: ฿3.61 vs. price of ฿2.02 (44% below fair value)
Industry Position: 163.3% above the Business Services median (#478 of 541)
No single metric tells the full story. See the BKK:QLT-R stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Qualitech PCL is engaged in the business of providing technical services, testing, inspection, and certification for the operation safety of industry equipment, pressure vessels, industrial boilers, piping and steel structures, which is important for the production process, storage, transport of the products in power generating, petrochemical industry, and construction to comply with industrial standard and the government laws. The Group's operations in both domestic and overseas geographical segments. The majority of revenue is from Domestic segment.
65GF Score
Get the complete analysis for BKK:QLT-R
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
BKK:QLT-R has been successfully added to your 
