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Amazing MicroelectronicROCO:6411 -3.65%72 Operating Margin % is 2.65% as of Dec. 2025, which is 85% below its 10-year median of 17.70. GuruFocus rates ROCO:6411 with a GF Score™ of 72/100 and a GF Value™ of NT$87.91 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 1,023 Semiconductors companies, Amazing Microelectronic ranks better than 59.24% on this metric.
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.
Amazing Microelectronic Operating Margin % Related Terms
Amazing Microelectronic Operating Margin % Historical Data
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The historical data trend for Amazing Microelectronic'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:6411 vs NVDA, AVGO, MU: Operating Margin % Comparison
For the Semiconductors subindustry, Amazing Microelectronic'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.
Amazing Microelectronic Operating Margin % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Amazing Microelectronic's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Amazing Microelectronic'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.
Amazing Microelectronic'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.
Amazing Microelectronic (ROCO:6411) has a Operating Margin % of 2.65% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Amazing Microelectronic and its competitors. This is 85% below median its historical median of 17.70. Over the past decade, Amazing Microelectronic's Operating Margin % has ranged from 8.51 to 27.55. According to the industry distribution chart, Amazing Microelectronic ranks #417 out of 1023 companies in the Semiconductors industry, placing it in the top 40.8%.
Is Amazing Microelectronic's Operating Margin % too high?
Amazing Microelectronic's current Operating Margin % of 2.65% is 85% below median its 10-year median of 17.70. Over the past 10 years, this metric has ranged from a low of 8.51 to a high of 27.55. The Semiconductors industry median Operating Margin % is 5.33. Amazing Microelectronic's value of 2.65% is 50.3% below this industry median. Based on the distribution chart, Amazing Microelectronic ranks #417 out of 1023 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Amazing Microelectronic has a GF Score™ of 72/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Amazing Microelectronic's Operating Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Amazing Microelectronic ranks #417 out of 1023 companies for Operating Margin %. This puts Amazing Microelectronic in the upper half of its industry. The industry median Operating Margin % is 5.33. Amazing Microelectronic's value of 2.65% is 50.3% below this benchmark. Historically, Amazing Microelectronic's own Operating Margin % has ranged from 8.51 to 27.55 over the past decade. While the company's 10-year median is 17.70 vs. the industry median of 5.33, Amazing Microelectronic has consistently been below 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. Amazing Microelectronic's current Operating Margin % of 2.65% is 50.3% below 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 Amazing Microelectronic 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. Amazing Microelectronic's current Operating Margin % is 2.65%, which is 85% below median its own 10-year median of 17.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Amazing Microelectronic stock overvalued right now?
Based on GuruFocus' analysis, Amazing Microelectronic (ROCO:6411) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$87.91, compared to a current price of NT$79.20 — trading 9.9% below its estimated fair value. The current Operating Margin % is 2.65%, which is 85% below median its 10-year median of 17.70 and 50.3% below the Semiconductors industry median of 5.33. Amazing Microelectronic's overall GF Score™ is 72/100 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 Amazing Microelectronic (ROCO:6411), the current Operating Margin % is 2.65% 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 Amazing Microelectronic (ROCO:6411) Overvalued in 2026?
Based on GuruFocus' analysis, Amazing Microelectronic stock appears to be undervalued.
The current stock price of NT$79.20 is trading 9.9% below its estimated GF Value™ of NT$87.91.
GuruFocus considers Amazing Microelectronic to be Modestly Undervalued.
Key valuation signals for ROCO:6411:
Operating Margin %: 2.65% (85% below median its 10-year median of 17.70)
GF Value™: NT$87.91 vs. price of NT$79.20 (9.9% below fair value)
Industry Position: 50.3% below the Semiconductors median (#417 of 1023)
No single metric tells the full story. See the ROCO:6411 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Amazing Microelectronic Corp engages in the design and development of ESD protection ICs. The company's products include ESD/EOS Protectors; EMI Filters; CAN Bus Transceivers; RS232 Transceivers; RS485 Transceivers; Digital Isolators; Hall Sensors; and Gate Drivers. The group's reportable segments are the IC Design and Development Segment, the Biotechnology Segment, and the R&D and Design Segment. It derives a majority of the revenue from the IC Design and Development Segment. The primary geographical markets: Taiwan, China (including Hong Kong), South Korea, the United States, and Others. It generates the majority of its revenue from Taiwan.
72GF 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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