Prosper Engineering PCLBKK:PROS -5.56%28 PB Ratio is 0.98 as of Jun. 30, 2026, which is 62% below its 10-year median of 2.56. GuruFocus rates BKK:PROS with a GF Score™ of 28/100 and a GF Value™ of ฿0.44 (Possible Value Trap). The stock has 5 warning signs investors should review. Among 1,717 Construction companies, Prosper Engineering PCL ranks better than 62.55% on this metric.
The historical rank and industry rank for Prosper Engineering PCL's PB Ratio or its related term are showing as below:
BKK:PROS'
s PB Ratio Range Over the Past 10 Years
Min: 0.84 Med: 2.56 Max: 5.32
Current: 0.97
During the past 8 years, Prosper Engineering PCL's highest PB Ratio was 5.32. The lowest was 0.84. And the median was 2.56.
BKK:PROS's PB Ratio is ranked better than 62.55% of 1717
companies
in the Construction industry
Industry Median: 1.32
vs BKK:PROS: 0.97
During the past 12 months, Prosper Engineering PCL's average Book Value Per Share Growth Rate was -56.20% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -37.40% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -25.10% per year.
During the past 8 years, the highest 3-Year average Book Value Per Share Growth Rate of Prosper Engineering PCL was 36.10% per year. The lowest was -37.40% per year. And the median was -13.50% per year.
Back to Basics: PB Ratio
Prosper Engineering PCL (BKK:PROS) 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.
* 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, Prosper Engineering 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.
Prosper Engineering PCL PB Ratio vs Construction Industry
For the Construction industry and Industrials sector, Prosper Engineering PCL's PB Ratio distribution charts can be found below:
* The bar in red indicates where Prosper Engineering 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.
Prosper Engineering PCL (BKK:PROS) has a PB Ratio of 0.98 as of Jun. 30, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Prosper Engineering PCL and its competitors. This is 62% below median its historical median of 2.56. Over the past decade, Prosper Engineering PCL's PB Ratio has ranged from 0.84 to 5.32. According to the industry distribution chart, Prosper Engineering PCL ranks #643 out of 1717 companies in the Construction industry, placing it in the top 37.4%.
Is Prosper Engineering PCL's PB Ratio too high?
Prosper Engineering PCL's current PB Ratio of 0.98 is 62% below median its 10-year median of 2.56. Over the past 10 years, this metric has ranged from a low of 0.84 to a high of 5.32. The Construction industry median PB Ratio is 1.32. Prosper Engineering PCL's value of 0.98 is 25.8% below this industry median. Based on the distribution chart, Prosper Engineering PCL ranks #643 out of 1717 companies in the Construction industry, which is above the industry midpoint. Overall, Prosper Engineering PCL has a GF Score™ of 28/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Prosper Engineering PCL's PB Ratio compare to PWR and FIX?
According to the Construction industry distribution chart, Prosper Engineering PCL ranks #643 out of 1717 companies for PB Ratio. This puts Prosper Engineering PCL in the upper half of its industry. The industry median PB Ratio is 1.32. Prosper Engineering PCL's value of 0.98 is 25.8% below this benchmark. Historically, Prosper Engineering PCL's own PB Ratio has ranged from 0.84 to 5.32 over the past decade. While the company's 10-year median is 2.56 vs. the industry median of 1.32, Prosper Engineering 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 1.32, based on 1,717 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. Prosper Engineering PCL's current PB Ratio of 0.98 is 25.8% 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 Prosper Engineering PCL and its competitors. For the Construction industry, the median PB Ratio is 1.32 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Prosper Engineering PCL's current PB Ratio is 0.98, which is 62% below median its own 10-year median of 2.56. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Prosper Engineering PCL stock overvalued right now?
Based on GuruFocus' analysis, Prosper Engineering PCL (BKK:PROS) is currently considered Possible Value Trap. The stock's GF Value™ is ฿0.44, compared to a current price of ฿0.17 — trading 61.4% below its estimated fair value. The current PB Ratio is 0.98, which is 62% below median its 10-year median of 2.56 and 25.8% below the Construction industry median of 1.32. Prosper Engineering PCL's overall GF Score™ is 28/100 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 Prosper Engineering PCL (BKK:PROS), the current PB Ratio is 0.98 as of Jun. 30, 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 Prosper Engineering PCL (BKK:PROS) Overvalued in 2026?
Based on GuruFocus' analysis, Prosper Engineering PCL stock appears to be undervalued.
The current stock price of ฿0.17 is trading 61.4% below its estimated GF Value™ of ฿0.44.
GuruFocus considers Prosper Engineering PCL to be Possible Value Trap.
Key valuation signals for BKK:PROS:
PB Ratio: 0.98 (62% below median its 10-year median of 2.56)
GF Value™: ฿0.44 vs. price of ฿0.17 (61.4% below fair value)
Industry Position: 25.8% below the Construction median (#643 of 1717)
No single metric tells the full story. See the BKK:PROS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Prosper Engineering PCL is a provider of electrical and communication systems, air conditioning and ventilation systems, sanitary and fire protection system distribution of materials for M&E systems and maintenance services after completion of installation and architectural works. It operates and installs engineering systems in various types of buildings, shopping centers, large superstores, product distribution centers, mobile telephone network centers, information centers, residential buildings, office buildings, government and public sector buildings, hospitals, and industrial factories. The company has two segments: M&E engineering Segment and Civil & Structure Engineering Segment. It derives maximum revenue from M&E engineering Segment.
28GF Score
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