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BrinnoROCO:7402 +9.92%69 Operating Margin % is -2.42% as of Dec. 2025. GuruFocus rates ROCO:7402 with a GF Score™ of 69/100 and a GF Value™ of NT$78.42 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 1,070 Business Services companies, Brinno ranks worse than 61.21% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Brinno's Operating Income for the
three
months ended in Dec. 2025 was NT$-2.7 Mil. Brinno's Revenue for the
three
months ended in Dec. 2025 was NT$110.9 Mil. Therefore, Brinno's Operating Margin % for the quarter that ended in Dec. 2025 was -2.42%.
Warning Sign:
Brinno Inc operating margin has been in a 5-year decline. The average rate of decline per year is -13.8%.
The historical rank and industry rank for Brinno's Operating Margin % or its related term are showing as below:
ROCO:7402'
s Operating Margin % Range Over the Past 10 Years
Min: 3.78 Med: 6.78 Max: 11.4
Current: 3.78
ROCO:7402's Operating Margin % is ranked worse than 61.21% of 1070
companies
in the Business Services industry
Industry Median: 6.365
vs ROCO:7402: 3.78
Brinno's 5-Year Average Operating Margin % Growth Rate was -13.80% per year.
Brinno's Operating Income for the
three
months ended in Dec. 2025 was NT$-2.7 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was NT$19.7 Mil.
Brinno (ROCO:7402) 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.
Brinno Operating Margin % Related Terms
Brinno Operating Margin % Historical Data
* Premium members only.
The historical data trend for Brinno'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:7402 vs ALLE, MSA, ADT: Operating Margin % Comparison
For the Security & Protection Services subindustry, Brinno'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.
Brinno Operating Margin % vs Business Services Industry
For the Business Services industry and Industrials sector, Brinno's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Brinno'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.
Brinno'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.
Brinno (ROCO:7402) has a Operating Margin % of -2.42% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Brinno and its competitors. Over the past decade, Brinno's Operating Margin % has ranged from 3.78 to 11.40. According to the industry distribution chart, Brinno ranks #655 out of 1070 companies in the Business Services industry, placing it in the top 61.2%.
Is Brinno's Operating Margin % too high?
Brinno's current Operating Margin % is -2.42%. Over the past 10 years, this metric has ranged from a low of 3.78 to a high of 11.40. Based on the distribution chart, Brinno ranks #655 out of 1070 companies in the Business Services industry, which is below the industry midpoint. Overall, Brinno has a GF Score™ of 69/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Brinno's Operating Margin % compare to ALLE and MSA?
According to the Business Services industry distribution chart, Brinno ranks #655 out of 1070 companies for Operating Margin %. This places Brinno in the lower half of its industry. The industry median Operating Margin % is 6.37. Historically, Brinno's own Operating Margin % has ranged from 3.78 to 11.40 over the past decade. 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 Business Services company?
The median Operating Margin % among Business Services companies is 6.37, based on 1,070 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. 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 Brinno and its competitors. For the Business Services industry, the median Operating Margin % is 6.37 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Brinno's current Operating Margin % is -2.42%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Brinno stock overvalued right now?
Based on GuruFocus' analysis, Brinno (ROCO:7402) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$78.42, compared to a current price of NT$144.00 — trading 83.6% above its estimated fair value. The current Operating Margin % is -2.42%. Brinno's overall GF Score™ is 69/100 with 4 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 Brinno (ROCO:7402), the current Operating Margin % is -2.42% 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 Brinno (ROCO:7402) Overvalued in 2026?
Based on GuruFocus' analysis, Brinno stock appears to be overvalued.
The current stock price of NT$144.00 is trading 83.6% above its estimated GF Value™ of NT$78.42.
GuruFocus considers Brinno to be Significantly Overvalued.
Key valuation signals for ROCO:7402:
Operating Margin %: -2.42%
GF Value™: NT$78.42 vs. price of NT$144.00 (83.6% above fair value)
No single metric tells the full story. See the ROCO:7402 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Brinno Inc is engaged in the manufacturing of digital surveillance cameras. The Company's products include Time Lapse Camera, Construction Camera, Outdoor Security Camera, Front Door Security Camera, PeepHole Camera, and others. The company's main business includes: Wholesale of computer and office equipment, International trade, Information software services, Data processing services, Electronic information supply and service industries, and Product design industry.
69GF Score
Get the complete analysis for ROCO:7402
Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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