Right Tunnelling PCLBKK:RT 50 PB Ratio is 0.32 as of Jun. 26, 2026, which is 66% below its 10-year median of 0.93. GuruFocus rates BKK:RT with a GF Score™ of 50/100 and a GF Value™ of ฿0.40 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 1,722 Construction companies, Right Tunnelling PCL ranks better than 92.62% on this metric.
Right Tunnelling PCL stock PB Ratio (=0.33) is close to 1-year high of 0.36.
The historical rank and industry rank for Right Tunnelling PCL's PB Ratio or its related term are showing as below:
BKK:RT'
s PB Ratio Range Over the Past 10 Years
Min: 0.27 Med: 0.93 Max: 2.86
Current: 0.32
During the past 8 years, Right Tunnelling PCL's highest PB Ratio was 2.86. The lowest was 0.27. And the median was 0.93.
BKK:RT's PB Ratio is ranked better than 92.62% of 1722
companies
in the Construction industry
Industry Median: 1.31
vs BKK:RT: 0.32
During the past 12 months, Right Tunnelling PCL's average Book Value Per Share Growth Rate was 10.80% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 1.30% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -6.10% per year.
During the past 8 years, the highest 3-Year average Book Value Per Share Growth Rate of Right Tunnelling PCL was 43.10% per year. The lowest was -9.10% per year. And the median was 1.30% per year.
Back to Basics: PB Ratio
Right Tunnelling PCL (BKK:RT) PB Ratio Explanation
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Right Tunnelling PCL PB Ratio Related Terms
Right Tunnelling PCL PB Ratio Historical Data
* Premium members only.
The historical data trend for Right Tunnelling PCL's PB 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 Engineering & Construction subindustry, Right Tunnelling PCL's PB Ratio, along with its competitors' market caps and PB 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.
Right Tunnelling PCL PB Ratio vs Construction Industry
For the Construction industry and Industrials sector, Right Tunnelling PCL's PB Ratio distribution charts can be found below:
* The bar in red indicates where Right Tunnelling PCL's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Right Tunnelling PCL (BKK:RT) has a PB Ratio of 0.32 as of Jun. 26, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Right Tunnelling PCL and its competitors. This is 66% below median its historical median of 0.93. Over the past decade, Right Tunnelling PCL's PB Ratio has ranged from 0.27 to 2.86. According to the industry distribution chart, Right Tunnelling PCL ranks #127 out of 1722 companies in the Construction industry, placing it in the top 7.4%.
Is Right Tunnelling PCL's PB Ratio too high?
Right Tunnelling PCL's current PB Ratio of 0.32 is 66% below median its 10-year median of 0.93. Over the past 10 years, this metric has ranged from a low of 0.27 to a high of 2.86. The Construction industry median PB Ratio is 1.31. Right Tunnelling PCL's value of 0.32 is 75.6% below this industry median. Based on the distribution chart, Right Tunnelling PCL ranks #127 out of 1722 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, Right Tunnelling PCL has a GF Score™ of 50/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Right Tunnelling PCL's PB Ratio compare to PWR and FIX?
According to the Construction industry distribution chart, Right Tunnelling PCL ranks #127 out of 1722 companies for PB Ratio. This places Right Tunnelling PCL in the top 7% of its industry — outperforming the majority of peers. The industry median PB Ratio is 1.31. Right Tunnelling PCL's value of 0.32 is 75.6% below this benchmark. Historically, Right Tunnelling PCL's own PB Ratio has ranged from 0.27 to 2.86 over the past decade. While the company's 10-year median is 0.93 vs. the industry median of 1.31, Right Tunnelling 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 PB Ratio for a Construction company?
The median PB Ratio among Construction companies is 1.31, based on 1,722 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Right Tunnelling PCL's current PB Ratio of 0.32 is 75.6% 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 PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Right Tunnelling PCL and its competitors. For the Construction industry, the median PB Ratio is 1.31 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Right Tunnelling PCL's current PB Ratio is 0.32, which is 66% below median its own 10-year median of 0.93. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Right Tunnelling PCL stock overvalued right now?
Based on GuruFocus' analysis, Right Tunnelling PCL (BKK:RT) is currently considered Modestly Undervalued. The stock's GF Value™ is ฿0.40, compared to a current price of ฿0.29 — trading 27.5% below its estimated fair value. The current PB Ratio is 0.32, which is 66% below median its 10-year median of 0.93 and 75.6% below the Construction industry median of 1.31. Right Tunnelling PCL's overall GF Score™ is 50/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Right Tunnelling PCL (BKK:RT), the current PB Ratio is 0.32 as of Jun. 26, 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 Right Tunnelling PCL (BKK:RT) Overvalued in 2026?
Based on GuruFocus' analysis, Right Tunnelling PCL stock appears to be undervalued.
The current stock price of ฿0.29 is trading 27.5% below its estimated GF Value™ of ฿0.40.
GuruFocus considers Right Tunnelling PCL to be Modestly Undervalued.
Key valuation signals for BKK:RT:
PB Ratio: 0.32 (66% below median its 10-year median of 0.93)
GF Value™: ฿0.40 vs. price of ฿0.29 (27.5% below fair value)
Industry Position: 75.6% below the Construction median (#127 of 1722)
No single metric tells the full story. See the BKK:RT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Right Tunnelling PCL is a civil engineering service provider. It specializes in geology and special techniques such as tunnel construction, rock drilling, rock blasting, mining construction, soil boring tests, and concrete structures. The clients of the company include both the public and private sectors. The company offers services related to tunnel and shaft construction, dam construction, hydropower plant construction, and pipe jacking projects. The company operates in two geographic segments of Thailand and overseas (Myanmar, The Lao People's Democratic Republic, and Cambodia). Geographically, it derives a majority of its revenue from Thailand.
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