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.
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.
Union Plastic PCLBKK:UP 66 Pretax Margin % is 47.66% as of Mar. 2026, which is 988% above its 10-year median of 4.38. GuruFocus rates BKK:UP with a GF Score™ of 66/100 and a GF Value™ of ฿16.77 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 1,321 Vehicles & Parts companies, Union Plastic PCL ranks better than 79.11% on this metric.
The historical rank and industry rank for Union Plastic PCL's Pretax Margin % or its related term are showing as below:
BKK:UP'
s Pretax Margin % Range Over the Past 10 Years
Min: -5.34 Med: 4.38 Max: 10.78
Current: 10.78
BKK:UP's Pretax Margin % is ranked better than 79.11% of 1321
companies
in the Vehicles & Parts industry
Industry Median: 4.44
vs BKK:UP: 10.78
Union Plastic PCL (BKK:UP) Pretax Margin % Explanation
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.
Union Plastic PCL Pretax Margin % Related Terms
Union Plastic PCL Pretax Margin % Historical Data
* Premium members only.
The historical data trend for Union Plastic PCL's Pretax 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.
For the Auto Parts subindustry, Union Plastic 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.
Union Plastic PCL Pretax Margin % vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, Union Plastic PCL's Pretax Margin % distribution charts can be found below:
* The bar in red indicates where Union Plastic 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.
Union Plastic PCL (BKK:UP) has a Pretax Margin % of 47.66% as of Mar. 2026. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Union Plastic PCL and its competitors. This is 988% above median its historical median of 4.38. According to the industry distribution chart, Union Plastic PCL ranks #276 out of 1321 companies in the Vehicles & Parts industry, placing it in the top 20.9%.
Is Union Plastic PCL's Pretax Margin % too high?
Union Plastic PCL's current Pretax Margin % of 47.66% is 988% above median its 10-year median of 4.38. The Vehicles & Parts industry median Pretax Margin % is 4.44. Union Plastic PCL's value of 47.66% is 973.4% above this industry median. Based on the distribution chart, Union Plastic PCL ranks #276 out of 1321 companies in the Vehicles & Parts industry, which is in the top quartile — a strong position relative to peers. Overall, Union Plastic PCL has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Union Plastic PCL's Pretax Margin % compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Union Plastic PCL ranks #276 out of 1321 companies for Pretax Margin %. This places Union Plastic PCL in the top 21% of its industry — outperforming the majority of peers. The industry median Pretax Margin % is 4.44. Union Plastic PCL's value of 47.66% is 973.4% above this benchmark. While the company's 10-year median is 4.38 vs. the industry median of 4.44, Union Plastic PCL has consistently been above 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 Vehicles & Parts company?
The median Pretax Margin % among Vehicles & Parts companies is 4.44, based on 1,321 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. Union Plastic PCL's current Pretax Margin % of 47.66% is 973.4% above 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 Union Plastic PCL and its competitors. For the Vehicles & Parts industry, the median Pretax Margin % is 4.44 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Union Plastic PCL's current Pretax Margin % is 47.66%, which is 988% above median its own 10-year median of 4.38. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Union Plastic PCL stock overvalued right now?
Based on GuruFocus' analysis, Union Plastic PCL (BKK:UP) is currently considered Significantly Overvalued. The stock's GF Value™ is ฿16.77, compared to a current price of ฿23.60 — trading 40.7% above its estimated fair value. The current Pretax Margin % is 47.66%, which is 988% above median its 10-year median of 4.38 and 973.4% above the Vehicles & Parts industry median of 4.44. Union Plastic PCL's overall GF Score™ is 66/100 with 4 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 Union Plastic PCL (BKK:UP), the current Pretax Margin % is 47.66% 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 Union Plastic PCL (BKK:UP) Overvalued in 2026?
Based on GuruFocus' analysis, Union Plastic PCL stock appears to be overvalued.
The current stock price of ฿23.60 is trading 40.7% above its estimated GF Value™ of ฿16.77.
GuruFocus considers Union Plastic PCL to be Significantly Overvalued.
Key valuation signals for BKK:UP:
Pretax Margin %: 47.66% (988% above median its 10-year median of 4.38)
GF Value™: ฿16.77 vs. price of ฿23.60 (40.7% above fair value)
Industry Position: 973.4% above the Vehicles & Parts median (#276 of 1321)
No single metric tells the full story. See the BKK:UP stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Union Plastic PCL is engaged in the manufacturing and distribution of thermoplastics. The company is also involved in the contract manufacture and repair of molds. The reportable segments of company are Manufacture and distribution of thermoplastics and Contract manufacture and repair of molds. The group generates a majority of its revenue from the manufacture and distribution of thermoplastics business.
66GF Score
Get the complete analysis for BKK:UP
Pretax Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
BKK:UP has been successfully added to your 
