The historical rank and industry rank for Jian Sin Industrial Co's Pretax Margin % or its related term are showing as below:
ROCO:4502'
s Pretax Margin % Range Over the Past 10 Years
Min: -10.8 Med: -0.03 Max: 6.32
Current: -8.74
ROCO:4502's Pretax Margin % is ranked worse than 84.9% of 3026
companies
in the Industrial Products industry
Industry Median: 5.825
vs ROCO:4502: -8.74
Jian Sin Industrial Co (ROCO:4502) 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.
Jian Sin Industrial Co Pretax Margin % Related Terms
Jian Sin Industrial Co Pretax Margin % Historical Data
* Premium members only.
The historical data trend for Jian Sin Industrial 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.
ROCO:4502 vs CRS, ATI, MLI: Pretax Margin % Comparison
For the Metal Fabrication subindustry, Jian Sin Industrial 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.
Jian Sin Industrial Co Pretax Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Jian Sin Industrial Co's Pretax Margin % distribution charts can be found below:
* The bar in red indicates where Jian Sin Industrial 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.
Jian Sin Industrial Co (ROCO:4502) has a Pretax Margin % of -10.17% as of Dec. 2025. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Jian Sin Industrial Co and its competitors. According to the industry distribution chart, Jian Sin Industrial Co ranks #2569 out of 3026 companies in the Industrial Products industry, placing it in the top 84.9%.
Is Jian Sin Industrial Co's Pretax Margin % too high?
Jian Sin Industrial Co's current Pretax Margin % is -10.17%. Based on the distribution chart, Jian Sin Industrial Co ranks #2569 out of 3026 companies in the Industrial Products industry, which is in the bottom quartile relative to peers. Overall, Jian Sin Industrial Co has a GF Score™ of 54/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Jian Sin Industrial Co's Pretax Margin % compare to CRS and ATI?
According to the Industrial Products industry distribution chart, Jian Sin Industrial Co ranks #2569 out of 3026 companies for Pretax Margin %. This places Jian Sin Industrial Co in the lower half of its industry. The industry median Pretax Margin % is 5.83. 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 5.83, based on 3,026 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 Jian Sin Industrial Co and its competitors. For the Industrial Products industry, the median Pretax Margin % is 5.83 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Jian Sin Industrial Co's current Pretax Margin % is -10.17%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Jian Sin Industrial Co stock overvalued right now?
Based on GuruFocus' analysis, Jian Sin Industrial Co (ROCO:4502) is currently considered Fairly Valued. The stock's GF Value™ is NT$15.43, compared to a current price of NT$15.75 — trading 2.1% above its estimated fair value. The current Pretax Margin % is -10.17%. Jian Sin Industrial Co's overall GF Score™ is 54/100 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 Jian Sin Industrial Co (ROCO:4502), the current Pretax Margin % is -10.17% 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 Jian Sin Industrial Co (ROCO:4502) Overvalued in 2026?
Based on GuruFocus' analysis, Jian Sin Industrial Co stock appears to be overvalued.
The current stock price of NT$15.75 is trading 2.1% above its estimated GF Value™ of NT$15.43.
GuruFocus considers Jian Sin Industrial Co to be Fairly Valued.
Key valuation signals for ROCO:4502:
Pretax Margin %: -10.17%
GF Value™: NT$15.43 vs. price of NT$15.75 (2.1% above fair value)
No single metric tells the full story. See the ROCO:4502 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Jian Sin Industrial Co Ltd manufactures and trades steel, aluminum rings, laboratories, and aluminum alloy wheels. The company markets its products under the Rosta brand name. It export and sales automotive steering systems, steel sheet.
54GF Score
Get the complete analysis for ROCO:4502
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
ROCO:4502 has been successfully added to your 
