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Ample Electronic Technology CoROCO:4760 -9.26%77 Operating Margin % is 15.04% as of Dec. 2025, which is 27% above its 10-year median of 11.81. GuruFocus rates ROCO:4760 with a GF Score™ of 77/100 and a GF Value™ of NT$176.61 (Significantly Overvalued). The stock has 3 warning signs investors should review. Among 1,023 Semiconductors companies, Ample Electronic Technology Co ranks better than 73.51% on this metric.
Ample Electronic Technology Co (ROCO:4760) 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.
Ample Electronic Technology Co Operating Margin % Related Terms
Ample Electronic Technology Co Operating Margin % Historical Data
* 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.
Ample Electronic Technology Co Operating Margin % Chart
ROCO:4760 vs AMAT, LRCX, KLAC: Operating Margin % Comparison
For the Semiconductor Equipment & Materials subindustry, Ample Electronic Technology Co'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.
Ample Electronic Technology Co Operating Margin % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Ample Electronic Technology Co's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Ample Electronic Technology Co's Operating Margin % falls into.
Ample Electronic Technology Co Operating Margin % Calculation
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.
* 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.
Ample Electronic Technology Co (ROCO:4760) has a Operating Margin % of 15.04% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Ample Electronic Technology Co and its competitors. This is 27% above median its historical median of 11.81. Over the past decade, Ample Electronic Technology Co's Operating Margin % has ranged from 6.67 to 15.12. According to the industry distribution chart, Ample Electronic Technology Co ranks #271 out of 1023 companies in the Semiconductors industry, placing it in the top 26.5%.
Is Ample Electronic Technology Co's Operating Margin % too high?
Ample Electronic Technology Co's current Operating Margin % of 15.04% is 27% above median its 10-year median of 11.81. Over the past 10 years, this metric has ranged from a low of 6.67 to a high of 15.12. The Semiconductors industry median Operating Margin % is 5.33. Ample Electronic Technology Co's value of 15.04% is 182.2% above this industry median. Based on the distribution chart, Ample Electronic Technology Co ranks #271 out of 1023 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Ample Electronic Technology Co has a GF Score™ of 77/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Ample Electronic Technology Co's Operating Margin % compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Ample Electronic Technology Co ranks #271 out of 1023 companies for Operating Margin %. This puts Ample Electronic Technology Co in the upper half of its industry. The industry median Operating Margin % is 5.33. Ample Electronic Technology Co's value of 15.04% is 182.2% above this benchmark. Historically, Ample Electronic Technology Co's own Operating Margin % has ranged from 6.67 to 15.12 over the past decade. While the company's 10-year median is 11.81 vs. the industry median of 5.33, Ample Electronic 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 Operating Margin % for a Semiconductors company?
The median Operating Margin % among Semiconductors companies is 5.33, based on 1,023 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. Ample Electronic Technology Co's current Operating Margin % of 15.04% is 182.2% 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 Ample Electronic Technology Co and its competitors. For the Semiconductors industry, the median Operating Margin % is 5.33 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ample Electronic Technology Co's current Operating Margin % is 15.04%, which is 27% above median its own 10-year median of 11.81. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ample Electronic Technology Co stock overvalued right now?
Based on GuruFocus' analysis, Ample Electronic Technology Co (ROCO:4760) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$176.61, compared to a current price of NT$250.00 — trading 41.6% above its estimated fair value. The current Operating Margin % is 15.04%, which is 27% above median its 10-year median of 11.81 and 182.2% above the Semiconductors industry median of 5.33. Ample Electronic Technology Co's overall GF Score™ is 77/100 with 3 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 Ample Electronic Technology Co (ROCO:4760), the current Operating Margin % is 15.04% 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 Ample Electronic Technology Co (ROCO:4760) Overvalued in 2026?
Based on GuruFocus' analysis, Ample Electronic Technology Co stock appears to be overvalued.
The current stock price of NT$250.00 is trading 41.6% above its estimated GF Value™ of NT$176.61.
GuruFocus considers Ample Electronic Technology Co to be Significantly Overvalued.
Key valuation signals for ROCO:4760:
Operating Margin %: 15.04% (27% above median its 10-year median of 11.81)
GF Value™: NT$176.61 vs. price of NT$250.00 (41.6% above fair value)
Industry Position: 182.2% above the Semiconductors median (#271 of 1023)
No single metric tells the full story. See the ROCO:4760 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ample Electronic Technology Co Business Description
Ample Electronic Technology Co Ltd is a Taiwan based company involved in manufacturing thick film conductors. Its products include passive components, touch panels, membrane switches, solar cells, and semiconductor LED packages.
77GF Score
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Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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