Right Tunnelling PCL (BKK:RT) GF Value Rank: 8 (As of Jul. 23, 2026) — 100% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

BKK:RT Right Tunnelling PCL BKK:RT
47 GF Score
Price ฿0.29
GF Value ฿0.41
Valuation Modestly Undervalued
! 5 Warning Signs
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What is Right Tunnelling PCL GF Value Rank?

Right Tunnelling PCL BKK:RT 47 GF Value Rank is 8 as of Jul. 23, 2026, which is 100% above its 10-year median of 4.00. GuruFocus rates BKK:RT with a GF Score™ of 47/100 and a GF Value™ of ฿0.41 (Modestly Undervalued). The stock has 5 warning signs investors should review.

Right Tunnelling PCL has the GF Value Rank of 8.

GF Value Rank evaluates the exclusive GuruFocus valuation and performance of a stock, rated on a scale from 1 to 10. It is determined by the price-to-GF-Value (P/GF Value) ratio, a proprietary metric calculated based on historical multiples along with an adjustment factor based on a company's past returns and growth and future estimates of the business' performance.

GuruFocus found that for valuation, we cannot simply give stocks a better GF Value rank simply because they have a lower P/GF Value ratio. Backtesting shows that over the long term, the two worst-performing groups are the most expensive group (with the highest P/GF Value ratio) and the least expensive group (with the lowest P/GF Value ratio).

We can understand why the most expensive group underperforms. We were initially puzzled by the underperformance of the least expensive group, but we realized there is a reason why some stocks are super cheap. If they look too undervalued, it is often because the businesses behind them are poor quality. The market realized this and gave them low valuations. In a way, the market is efficient.

After multiple backtesting analyses, we granted the stocks in third-cheapest percentile the highest GF Value rank, as they have performed the best over a full market cycle. Stock performance is actually not as sensitive to valuation as it is to growth and profitability. On average, the companies in the 20%-50% valuation groups have similar performances. Therefore, we should avoid the most expensive and the least expensive stocks. We can be more tolerant of valuation.

A higher score indicates a stock with a relatively low valuation and substantial potential for outperformance. Conversely, a lower score often reflects stocks that are either highly overvalued or deeply undervalued, both of which tend to underperform.

Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.

Right Tunnelling PCL GF Value Rank Related Terms

BKK:RT vs PWR, FIX, EME: GF Value Rank Comparison

For the Engineering & Construction subindustry, Right Tunnelling PCL's GF Value Rank, along with its competitors' market caps and GF Value Rank 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 GF Value Rank vs Construction Industry

For the Construction industry and Industrials sector, Right Tunnelling PCL's GF Value Rank distribution charts can be found below:

* The bar in red indicates where Right Tunnelling PCL's GF Value Rank falls into.


BKK:RT
47GF Score
Right Tunnelling PCL BKK:RT
GF Value Rank is just one metric. See GF Score™, valuation, warning signs, and more.
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Frequently Asked Questions Learn more about GF Value Rank →
What does a GF Value Rank of 8 mean?
Right Tunnelling PCL (BKK:RT) has a GF Value Rank of 8 as of Jul. 23, 2026. GF Value Rank is given based on historical multiples along with past returns, growth and future estimates of the business' performance. View historical data on Right Tunnelling PCL and its competitors. This is 100% above median its historical median of 4.00. Over the past decade, Right Tunnelling PCL's GF Value Rank has ranged from 2.00 to 10.00.
Is Right Tunnelling PCL's GF Value Rank too high?
Right Tunnelling PCL's current GF Value Rank of 8 is 100% above median its 10-year median of 4.00. Over the past 10 years, this metric has ranged from a low of 2.00 to a high of 10.00. Overall, Right Tunnelling PCL has a GF Score™ of 47/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Right Tunnelling PCL's GF Value Rank compare to PWR and FIX?
Right Tunnelling PCL's GF Value Rank of 8 can be compared against companies in the Construction industry. Historically, Right Tunnelling PCL's own GF Value Rank has ranged from 2.00 to 10.00 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 GF Value Rank for a Construction company?
A good GF Value Rank depends on the Construction industry context. However, GF Value Rank 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 GF Value Rank mean?
A high GF Value Rank can signal that a stock is expensive relative to its fundamentals. GF Value Rank is given based on historical multiples along with past returns, growth and future estimates of the business' performance. View historical data on Right Tunnelling PCL and its competitors. Right Tunnelling PCL's current GF Value Rank is 8, which is 100% above median its own 10-year median of 4.00. 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 ฿0.41, compared to a current price of ฿0.29 — trading 29.3% below its estimated fair value. The current GF Value Rank is 8, which is 100% above median its 10-year median of 4.00. Right Tunnelling PCL's overall GF Score™ is 47/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Value Rank calculated?
GF Value Rank is calculated from a company's financial statements. For Right Tunnelling PCL (BKK:RT), the current GF Value Rank is 8 as of Jul. 23, 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 29.3% below its estimated GF Value™ of ฿0.41. GuruFocus considers Right Tunnelling PCL to be Modestly Undervalued.

Key valuation signals for BKK:RT:

  • GF Value Rank: 8 (100% above median its 10-year median of 4.00)
  • GF Value™: ฿0.41 vs. price of ฿0.29 (29.3% below fair value)
  • GF Score™: 47/100 with 5 warning signs

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 Business Description

Address 292 Moo 4, Bangna-Trad (KM 26) Road, Bangbor Subdistrict, Bangbor District, Samut Prakan, THA, 10560
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.
47GF Score

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GF Value Rank is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

฿0.29
Price
฿0.41
GF Value