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STL Technology CoROCO:4931 -9.95%58 Pretax Margin % is 16.39% as of Dec. 2025, which is 203% above its 10-year median of 5.41. GuruFocus rates ROCO:4931 with a GF Score™ of 58/100 and a GF Value™ of NT$47.65 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 3,031 Industrial Products companies, STL Technology Co ranks better than 67.4% on this metric.
The historical rank and industry rank for STL Technology Co's Pretax Margin % or its related term are showing as below:
ROCO:4931'
s Pretax Margin % Range Over the Past 10 Years
Min: -3.29 Med: 5.41 Max: 10.2
Current: 10.2
ROCO:4931's Pretax Margin % is ranked better than 67.4% of 3031
companies
in the Industrial Products industry
Industry Median: 5.81
vs ROCO:4931: 10.20
STL Technology Co (ROCO:4931) 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.
STL Technology Co Pretax Margin % Related Terms
STL Technology Co Pretax Margin % Historical Data
* Premium members only.
The historical data trend for STL Technology Co'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 Electrical Equipment & Parts subindustry, STL Technology Co'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.
STL Technology Co Pretax Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, STL Technology Co's Pretax Margin % distribution charts can be found below:
* The bar in red indicates where STL Technology Co'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.
STL Technology Co (ROCO:4931) has a Pretax Margin % of 16.39% as of Dec. 2025. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on STL Technology Co and its competitors. This is 203% above median its historical median of 5.41. According to the industry distribution chart, STL Technology Co ranks #988 out of 3031 companies in the Industrial Products industry, placing it in the top 32.6%.
Is STL Technology Co's Pretax Margin % too high?
STL Technology Co's current Pretax Margin % of 16.39% is 203% above median its 10-year median of 5.41. The Industrial Products industry median Pretax Margin % is 5.81. STL Technology Co's value of 16.39% is 182.1% above this industry median. Based on the distribution chart, STL Technology Co ranks #988 out of 3031 companies in the Industrial Products industry, which is above the industry midpoint. Overall, STL Technology Co has a GF Score™ of 58/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does STL Technology Co's Pretax Margin % compare to VRT and BE?
According to the Industrial Products industry distribution chart, STL Technology Co ranks #988 out of 3031 companies for Pretax Margin %. This puts STL Technology Co in the upper half of its industry. The industry median Pretax Margin % is 5.81. STL Technology Co's value of 16.39% is 182.1% above this benchmark. While the company's 10-year median is 5.41 vs. the industry median of 5.81, STL Technology Co 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 an Industrial Products company?
The median Pretax Margin % among Industrial Products companies is 5.81, based on 3,031 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. STL Technology Co's current Pretax Margin % of 16.39% is 182.1% 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 STL Technology Co and its competitors. For the Industrial Products industry, the median Pretax Margin % is 5.81 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. STL Technology Co's current Pretax Margin % is 16.39%, which is 203% above median its own 10-year median of 5.41. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is STL Technology Co stock overvalued right now?
Based on GuruFocus' analysis, STL Technology Co (ROCO:4931) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$47.65, compared to a current price of NT$199.00 — trading 317.6% above its estimated fair value. The current Pretax Margin % is 16.39%, which is 203% above median its 10-year median of 5.41 and 182.1% above the Industrial Products industry median of 5.81. STL Technology Co's overall GF Score™ is 58/100 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 STL Technology Co (ROCO:4931), the current Pretax Margin % is 16.39% 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 STL Technology Co (ROCO:4931) Overvalued in 2026?
Based on GuruFocus' analysis, STL Technology Co stock appears to be overvalued.
The current stock price of NT$199.00 is trading 317.6% above its estimated GF Value™ of NT$47.65.
GuruFocus considers STL Technology Co to be Significantly Overvalued.
Key valuation signals for ROCO:4931:
Pretax Margin %: 16.39% (203% above median its 10-year median of 5.41)
GF Value™: NT$47.65 vs. price of NT$199.00 (317.6% above fair value)
Industry Position: 182.1% above the Industrial Products median (#988 of 3031)
No single metric tells the full story. See the ROCO:4931 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
STL Technology Co Ltd is engaged in the manufacturing and sales of lithium-ion battery modules in Taiwan. The company's products are mainly focused on industrial applications such as gardening and hand-held power tools, light electric vehicles, and energy storage system devices. The company and it's subsidiaries mainly operate in Taiwan.
58GF Score
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