S-TechROCO:1584 -1.32%72 Operating Margin % is 6.58% as of Dec. 2025, which is 360% above its 10-year median of 1.43. GuruFocus rates ROCO:1584 with a GF Score™ of 72/100 and a GF Value™ of NT$24.98 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 3,038 Industrial Products companies, S-Tech ranks worse than 55.92% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. S-Tech's Operating Income for the
three
months ended in Dec. 2025 was NT$42 Mil. S-Tech's Revenue for the
three
months ended in Dec. 2025 was NT$638 Mil. Therefore, S-Tech's Operating Margin % for the quarter that ended in Dec. 2025 was 6.58%.
Good Sign:
S-Tech Corp operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for S-Tech's Operating Margin % or its related term are showing as below:
ROCO:1584'
s Operating Margin % Range Over the Past 10 Years
Min: -11.09 Med: 1.43 Max: 10.95
Current: 5.29
ROCO:1584's Operating Margin % is ranked worse than 55.92% of 3038
companies
in the Industrial Products industry
Industry Median: 6.53
vs ROCO:1584: 5.29
S-Tech's 5-Year Average Operating Margin % Growth Rate was 62.20% per year.
S-Tech's Operating Income for the
three
months ended in Dec. 2025 was NT$42 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was NT$137 Mil.
S-Tech (ROCO:1584) Operating Margin % Explanation
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
S-Tech Operating Margin % Related Terms
S-Tech Operating Margin % Historical Data
* Premium members only.
The historical data trend for S-Tech's Operating 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:1584 vs ATI, CRS, MLI: Operating Margin % Comparison
For the Metal Fabrication subindustry, S-Tech's Operating Margin %, along with its competitors' market caps and Operating 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.
S-Tech Operating Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, S-Tech's Operating Margin % distribution charts can be found below:
* The bar in red indicates where S-Tech's Operating Margin % falls into.
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
S-Tech's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as
* 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.
S-Tech (ROCO:1584) has a Operating Margin % of 6.58% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on S-Tech and its competitors. This is 360% above median its historical median of 1.43. According to the industry distribution chart, S-Tech ranks #1699 out of 3038 companies in the Industrial Products industry, placing it in the top 55.9%.
Is S-Tech's Operating Margin % too high?
S-Tech's current Operating Margin % of 6.58% is 360% above median its 10-year median of 1.43. The Industrial Products industry median Operating Margin % is 6.53. S-Tech's value of 6.58% is 0.8% above this industry median. Based on the distribution chart, S-Tech ranks #1699 out of 3038 companies in the Industrial Products industry, which is below the industry midpoint. Overall, S-Tech has a GF Score™ of 72/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does S-Tech's Operating Margin % compare to ATI and CRS?
According to the Industrial Products industry distribution chart, S-Tech ranks #1699 out of 3038 companies for Operating Margin %. This places S-Tech in the lower half of its industry. The industry median Operating Margin % is 6.53. S-Tech's value of 6.58% is 0.8% above this benchmark. While the company's 10-year median is 1.43 vs. the industry median of 6.53, S-Tech 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 Operating Margin % for an Industrial Products company?
The median Operating Margin % among Industrial Products companies is 6.53, based on 3,038 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. S-Tech's current Operating Margin % of 6.58% is 0.8% 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on S-Tech and its competitors. For the Industrial Products industry, the median Operating Margin % is 6.53 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. S-Tech's current Operating Margin % is 6.58%, which is 360% above median its own 10-year median of 1.43. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is S-Tech stock overvalued right now?
Based on GuruFocus' analysis, S-Tech (ROCO:1584) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$24.98, compared to a current price of NT$18.70 — trading 25.1% below its estimated fair value. The current Operating Margin % is 6.58%, which is 360% above median its 10-year median of 1.43 and 0.8% above the Industrial Products industry median of 6.53. S-Tech's overall GF Score™ is 72/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For S-Tech (ROCO:1584), the current Operating Margin % is 6.58% 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 S-Tech (ROCO:1584) Overvalued in 2026?
Based on GuruFocus' analysis, S-Tech stock appears to be undervalued.
The current stock price of NT$18.70 is trading 25.1% below its estimated GF Value™ of NT$24.98.
GuruFocus considers S-Tech to be Modestly Undervalued.
Key valuation signals for ROCO:1584:
Operating Margin %: 6.58% (360% above median its 10-year median of 1.43)
GF Value™: NT$24.98 vs. price of NT$18.70 (25.1% below fair value)
Industry Position: 0.8% above the Industrial Products median (#1699 of 3038)
No single metric tells the full story. See the ROCO:1584 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
S-Tech Corp is mainly engaged in the manufacture, processing, and sales of special alloy materials and products. The company geographically operates in Europe, Asia, Taiwan, and other countries, out of which Europe derives the maximum revenue.
72GF Score
Get the complete analysis for ROCO:1584
Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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