Right Tunnelling PCLBKK:RT 50 Gross Margin % is 11.71% as of Mar. 2026, which is 11% below its 10-year median of 13.11. GuruFocus rates BKK:RT with a GF Score™ of 50/100 and a GF Value™ of ฿0.40 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 1,719 Construction companies, Right Tunnelling PCL ranks worse than 64.46% on this metric.
The historical rank and industry rank for Right Tunnelling PCL's Gross Margin % or its related term are showing as below:
BKK:RT'
s Gross Margin % Range Over the Past 10 Years
Min: -3.82 Med: 13.11 Max: 20.72
Current: 15.14
During the past 8 years, the highestGross Margin % of Right Tunnelling PCL was 20.72%. The lowest was -3.82%. And the median was 13.11%.
BKK:RT's Gross Margin % is ranked worse than 64.46% of 1719
companies
in the Construction industry
Industry Median: 20.71
vs BKK:RT: 15.14
Right Tunnelling PCL had a gross margin of 11.71% for the quarter that ended in Mar. 2026 => No sustainable competitive advantage
The 5-Year average Growth Rate of Gross Margin for Right Tunnelling PCL was 0.00% per year.
Right Tunnelling PCL (BKK:RT) Gross Margin % Explanation
Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.
Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %
1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key
Right Tunnelling PCL had a gross margin of 11.71% for the quarter that ended in Mar. 2026 => No sustainable competitive advantage
Be Aware
If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.
Right Tunnelling PCL Gross Margin % Related Terms
Right Tunnelling PCL Gross Margin % Historical Data
* Premium members only.
The historical data trend for Right Tunnelling PCL's Gross Margin % 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:RT vs PWR, FIX, EME: Gross Margin % Comparison
For the Engineering & Construction subindustry, Right Tunnelling PCL's Gross Margin %, along with its competitors' market caps and Gross Margin % 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 Gross Margin % vs Construction Industry
For the Construction industry and Industrials sector, Right Tunnelling PCL's Gross Margin % distribution charts can be found below:
* The bar in red indicates where Right Tunnelling PCL's Gross Margin % 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.
A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.
Right Tunnelling PCL (BKK:RT) has a Gross Margin % of 11.71% as of Mar. 2026. Gross margin is the ratio of total gross profit to net sales. View historical data on Right Tunnelling PCL and its competitors. This is 11% below median its historical median of 13.11. According to the industry distribution chart, Right Tunnelling PCL ranks #1108 out of 1719 companies in the Construction industry, placing it in the top 64.5%.
Is Right Tunnelling PCL's Gross Margin % too high?
Right Tunnelling PCL's current Gross Margin % of 11.71% is 11% below median its 10-year median of 13.11. The Construction industry median Gross Margin % is 20.71. Right Tunnelling PCL's value of 11.71% is 43.5% below this industry median. Based on the distribution chart, Right Tunnelling PCL ranks #1108 out of 1719 companies in the Construction industry, which is below the industry midpoint. 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 Gross Margin % compare to PWR and FIX?
According to the Construction industry distribution chart, Right Tunnelling PCL ranks #1108 out of 1719 companies for Gross Margin %. This places Right Tunnelling PCL in the lower half of its industry. The industry median Gross Margin % is 20.71. Right Tunnelling PCL's value of 11.71% is 43.5% below this benchmark. While the company's 10-year median is 13.11 vs. the industry median of 20.71, 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 Gross Margin % for a Construction company?
The median Gross Margin % among Construction companies is 20.71, based on 1,719 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Right Tunnelling PCL's current Gross Margin % of 11.71% is 43.5% 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on Right Tunnelling PCL and its competitors. For the Construction industry, the median Gross Margin % is 20.71 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Right Tunnelling PCL's current Gross Margin % is 11.71%, which is 11% below median its own 10-year median of 13.11. 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 Gross Margin % is 11.71%, which is 11% below median its 10-year median of 13.11 and 43.5% below the Construction industry median of 20.71. Right Tunnelling PCL's overall GF Score™ is 50/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For Right Tunnelling PCL (BKK:RT), the current Gross Margin % is 11.71% 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 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:
Gross Margin %: 11.71% (11% below median its 10-year median of 13.11)
GF Value™: ฿0.40 vs. price of ฿0.29 (27.5% below fair value)
Industry Position: 43.5% below the Construction median (#1108 of 1719)
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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