Prosper Engineering PCLBKK:PROS -5.56%28 Pretax Margin % is 1.42% as of Mar. 2026, which is 18% below its 10-year median of 1.73. 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 1,758 Construction companies, Prosper Engineering PCL ranks worse than 91.52% on this metric.
The pretax margin, as know as pretax profit margin, is widely used to measure the operating efficiency of a company before deducting taxes.
The pretax margin is sometimes preferred over the net margin as tax expenditures can make profitability comparisons between companies misleading.
It is a useful tool to compare companies operating in the same sector and less effective when comparing companies from other sectors as each industry generally has different operating expenses and sales patterns.
The long term trend of the pretax margin is a good indicator of the competitiveness and health of the business.
Prosper Engineering PCL Pretax Margin % Related Terms
Prosper Engineering PCL Pretax Margin % Historical Data
* 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:PROS vs PWR, FIX, EME: Pretax Margin % Comparison
For the Engineering & Construction subindustry, Prosper Engineering PCL's Pretax Margin %, along with its competitors' market caps and Pretax 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.
Prosper Engineering PCL Pretax Margin % vs Construction Industry
For the Construction industry and Industrials sector, Prosper Engineering PCL's Pretax Margin % distribution charts can be found below:
* The bar in red indicates where Prosper Engineering PCL's Pretax 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.
Prosper Engineering PCL (BKK:PROS) has a Pretax Margin % of 1.42% as of Mar. 2026. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Prosper Engineering PCL and its competitors. This is 18% below median its historical median of 1.73. According to the industry distribution chart, Prosper Engineering PCL ranks #1609 out of 1758 companies in the Construction industry, placing it in the top 91.5%.
Is Prosper Engineering PCL's Pretax Margin % too high?
Prosper Engineering PCL's current Pretax Margin % of 1.42% is 18% below median its 10-year median of 1.73. The Construction industry median Pretax Margin % is 5.52. Prosper Engineering PCL's value of 1.42% is 74.3% below this industry median. Based on the distribution chart, Prosper Engineering PCL ranks #1609 out of 1758 companies in the Construction industry, which is in the bottom quartile relative to peers. 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 Pretax Margin % compare to PWR and FIX?
According to the Construction industry distribution chart, Prosper Engineering PCL ranks #1609 out of 1758 companies for Pretax Margin %. This places Prosper Engineering PCL in the lower half of its industry. The industry median Pretax Margin % is 5.52. Prosper Engineering PCL's value of 1.42% is 74.3% below this benchmark. While the company's 10-year median is 1.73 vs. the industry median of 5.52, 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 Pretax Margin % for a Construction company?
The median Pretax Margin % among Construction companies is 5.52, based on 1,758 companies in the industry. Companies in the top quartile (top 25%) have a Pretax Margin % significantly above this median, while those in the bottom quartile fall well below. However, Pretax Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Prosper Engineering PCL's current Pretax Margin % of 1.42% is 74.3% 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 Pretax Margin % mean?
A high Pretax Margin % can signal that a stock is expensive relative to its fundamentals. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Prosper Engineering PCL and its competitors. For the Construction industry, the median Pretax Margin % is 5.52 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Prosper Engineering PCL's current Pretax Margin % is 1.42%, which is 18% below median its own 10-year median of 1.73. 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 Pretax Margin % is 1.42%, which is 18% below median its 10-year median of 1.73 and 74.3% below the Construction industry median of 5.52. 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 Pretax Margin % calculated?
Pretax Margin % is calculated from a company's financial statements. For Prosper Engineering PCL (BKK:PROS), the current Pretax Margin % is 1.42% 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 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:
Pretax Margin %: 1.42% (18% below median its 10-year median of 1.73)
GF Value™: ฿0.44 vs. price of ฿0.17 (61.4% below fair value)
Industry Position: 74.3% below the Construction median (#1609 of 1758)
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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