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.
TacBright Optronics Pretax Margin % Related Terms
TacBright Optronics Pretax Margin % Historical Data
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The historical data trend for TacBright Optronics'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.
ROCO:6434 vs LIN, SHW, ECL: Pretax Margin % Comparison
For the Specialty Chemicals subindustry, TacBright Optronics'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.
TacBright Optronics Pretax Margin % vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, TacBright Optronics's Pretax Margin % distribution charts can be found below:
* The bar in red indicates where TacBright Optronics'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.
TacBright Optronics (ROCO:6434) has a Pretax Margin % of -11.48% as of Dec. 2025. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on TacBright Optronics and its competitors. According to the industry distribution chart, TacBright Optronics ranks #1346 out of 1574 companies in the Chemicals industry, placing it in the top 85.5%.
Is TacBright Optronics' Pretax Margin % too high?
TacBright Optronics' current Pretax Margin % is -11.48%. Based on the distribution chart, TacBright Optronics ranks #1346 out of 1574 companies in the Chemicals industry, which is in the bottom quartile relative to peers. Overall, TacBright Optronics has a GF Score™ of 42/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does TacBright Optronics' Pretax Margin % compare to LIN and SHW?
According to the Chemicals industry distribution chart, TacBright Optronics ranks #1346 out of 1574 companies for Pretax Margin %. This places TacBright Optronics in the lower half of its industry. The industry median Pretax Margin % is 5.34. 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 Chemicals company?
The median Pretax Margin % among Chemicals companies is 5.34, based on 1,574 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. 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 TacBright Optronics and its competitors. For the Chemicals industry, the median Pretax Margin % is 5.34 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. TacBright Optronics's current Pretax Margin % is -11.48%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TacBright Optronics stock overvalued right now?
Based on GuruFocus' analysis, TacBright Optronics (ROCO:6434) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$4.06, compared to a current price of NT$18.00 — trading 343.3% above its estimated fair value. The current Pretax Margin % is -11.48%. TacBright Optronics' overall GF Score™ is 42/100 with 2 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 TacBright Optronics (ROCO:6434), the current Pretax Margin % is -11.48% as of Dec. 2025. 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 TacBright Optronics (ROCO:6434) Overvalued in 2026?
Based on GuruFocus' analysis, TacBright Optronics stock appears to be overvalued.
The current stock price of NT$18.00 is trading 343.3% above its estimated GF Value™ of NT$4.06.
GuruFocus considers TacBright Optronics to be Significantly Overvalued.
Key valuation signals for ROCO:6434:
Pretax Margin %: -11.48%
GF Value™: NT$4.06 vs. price of NT$18.00 (343.3% above fair value)
No single metric tells the full story. See the ROCO:6434 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
TacBright Optronics Corp is engaged in synthetic resin and plastic manufacturing, surface treatment, wholesale and retail of chemical raw materials, and electronics. Wholesale and retail of sub-materials and manufacturing of precision chemical materials.
42GF Score
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