Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
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.
Sunplus Innovation Technology Operating Margin % Related Terms
Sunplus Innovation Technology 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.
ROCO:5236 vs NVDA, AVGO, MU: Operating Margin % Comparison
For the Semiconductors subindustry, Sunplus Innovation Technology'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.
Sunplus Innovation Technology Operating Margin % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Sunplus Innovation Technology's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Sunplus Innovation Technology'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.
* 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.
Sunplus Innovation Technology (ROCO:5236) has a Operating Margin % of 26.60% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Sunplus Innovation Technology and its competitors. This is near median its historical median of 28.35. Over the past decade, Sunplus Innovation Technology's Operating Margin % has ranged from 1.88 to 33.83. According to the industry distribution chart, Sunplus Innovation Technology ranks #82 out of 1023 companies in the Semiconductors industry, placing it in the top 8%.
Is Sunplus Innovation Technology's Operating Margin % too high?
Sunplus Innovation Technology's current Operating Margin % of 26.60% is near median its 10-year median of 28.35. Over the past 10 years, this metric has ranged from a low of 1.88 to a high of 33.83. The Semiconductors industry median Operating Margin % is 5.33. Sunplus Innovation Technology's value of 26.60% is 399.1% above this industry median. Based on the distribution chart, Sunplus Innovation Technology ranks #82 out of 1023 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, Sunplus Innovation Technology has a GF Score™ of 92/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sunplus Innovation Technology's Operating Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Sunplus Innovation Technology ranks #82 out of 1023 companies for Operating Margin %. This places Sunplus Innovation Technology in the top 8% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 5.33. Sunplus Innovation Technology's value of 26.60% is 399.1% above this benchmark. Historically, Sunplus Innovation Technology's own Operating Margin % has ranged from 1.88 to 33.83 over the past decade. While the company's 10-year median is 28.35 vs. the industry median of 5.33, Sunplus Innovation Technology 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. Sunplus Innovation Technology's current Operating Margin % of 26.60% is 399.1% 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 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 Sunplus Innovation Technology 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. Sunplus Innovation Technology's current Operating Margin % is 26.60%, which is near median its own 10-year median of 28.35. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sunplus Innovation Technology stock overvalued right now?
Based on GuruFocus' analysis, Sunplus Innovation Technology (ROCO:5236) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$175.01, compared to a current price of NT$152.50 — trading 12.9% below its estimated fair value. The current Operating Margin % is 26.60%, which is near median its 10-year median of 28.35 and 399.1% above the Semiconductors industry median of 5.33. Sunplus Innovation Technology's overall GF Score™ is 92/100 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 Sunplus Innovation Technology (ROCO:5236), the current Operating Margin % is 26.60% 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 Sunplus Innovation Technology (ROCO:5236) Overvalued in 2026?
Based on GuruFocus' analysis, Sunplus Innovation Technology stock appears to be undervalued.
The current stock price of NT$152.50 is trading 12.9% below its estimated GF Value™ of NT$175.01.
GuruFocus considers Sunplus Innovation Technology to be Modestly Undervalued.
Key valuation signals for ROCO:5236:
Operating Margin %: 26.60% (near median its 10-year median of 28.35)
GF Value™: NT$175.01 vs. price of NT$152.50 (12.9% below fair value)
Industry Position: 399.1% above the Semiconductors median (#82 of 1023)
No single metric tells the full story. See the ROCO:5236 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sunplus Innovation Technology Business Description
Sunplus Innovation Technology Inc is engaged in the business of developing, manufacturing, and marketing Microcontrollers and System-on-Chips with embedded software solutions targeting Human Interface Devices, PC External HDD/ODD Drives, PC/NB Camera and Industry Control market segments. The product portfolio includes Web camera controllers, NB camera controllers, IOT camera controllers, and other products.
92GF Score
Get the complete analysis for ROCO:5236
Operating 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:5236 has been successfully added to your 
