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Operating Margin % is calculated as Operating Income divided by its Revenue. Sun Max Tech's Operating Income for the
three
months ended in Mar. 2026 was NT$-5 Mil. Sun Max Tech's Revenue for the
three
months ended in Mar. 2026 was NT$325 Mil. Therefore, Sun Max Tech's Operating Margin % for the quarter that ended in Mar. 2026 was -1.39%.
Warning Sign:
Sun Max Tech Ltd operating margin has been in a 5-year decline. The average rate of decline per year is -15.5%.
The historical rank and industry rank for Sun Max Tech's Operating Margin % or its related term are showing as below:
TPE:6591'
s Operating Margin % Range Over the Past 10 Years
Min: 4.71 Med: 13.69 Max: 18.95
Current: 11.2
TPE:6591's Operating Margin % is ranked better than 78.83% of 2475
companies
in the Hardware industry
Industry Median: 3.89
vs TPE:6591: 11.20
Sun Max Tech's 5-Year Average Operating Margin % Growth Rate was -15.50% per year.
Sun Max Tech's Operating Income for the
three
months ended in Mar. 2026 was NT$-5 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was NT$184 Mil.
Sun Max Tech (TPE:6591) 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.
Sun Max Tech Operating Margin % Related Terms
Sun Max Tech Operating Margin % Historical Data
* Premium members only.
The historical data trend for Sun Max 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.
TPE:6591 vs DELL, ANET, SNDK: Operating Margin % Comparison
For the Computer Hardware subindustry, Sun Max 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.
Sun Max Tech Operating Margin % vs Hardware Industry
For the Hardware industry and Technology sector, Sun Max Tech's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Sun Max 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.
Sun Max 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.
Sun Max Tech (TPE:6591) has a Operating Margin % of -1.39% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Sun Max Tech and its competitors. Over the past decade, Sun Max Tech's Operating Margin % has ranged from 4.71 to 18.95. According to the industry distribution chart, Sun Max Tech ranks #524 out of 2475 companies in the Hardware industry, placing it in the top 21.2%.
Is Sun Max Tech's Operating Margin % too high?
Sun Max Tech's current Operating Margin % is -1.39%. Over the past 10 years, this metric has ranged from a low of 4.71 to a high of 18.95. Based on the distribution chart, Sun Max Tech ranks #524 out of 2475 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. Overall, Sun Max Tech has a GF Score™ of 84/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sun Max Tech's Operating Margin % compare to DELL and ANET?
According to the Hardware industry distribution chart, Sun Max Tech ranks #524 out of 2475 companies for Operating Margin %. This places Sun Max Tech in the top 21% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 3.89. Historically, Sun Max Tech's own Operating Margin % has ranged from 4.71 to 18.95 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 Hardware company?
The median Operating Margin % among Hardware companies is 3.89, based on 2,475 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 Sun Max Tech and its competitors. For the Hardware industry, the median Operating Margin % is 3.89 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sun Max Tech's current Operating Margin % is -1.39%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sun Max Tech stock overvalued right now?
Based on GuruFocus' analysis, Sun Max Tech (TPE:6591) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$60.46, compared to a current price of NT$44.70 — trading 26.1% below its estimated fair value. The current Operating Margin % is -1.39%. Sun Max Tech's overall GF Score™ is 84/100 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 Sun Max Tech (TPE:6591), the current Operating Margin % is -1.39% as of Mar. 2026. 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 Sun Max Tech (TPE:6591) Overvalued in 2026?
Based on GuruFocus' analysis, Sun Max Tech stock appears to be undervalued.
The current stock price of NT$44.70 is trading 26.1% below its estimated GF Value™ of NT$60.46.
GuruFocus considers Sun Max Tech to be Modestly Undervalued.
Key valuation signals for TPE:6591:
Operating Margin %: -1.39%
GF Value™: NT$60.46 vs. price of NT$44.70 (26.1% below fair value)
No single metric tells the full story. See the TPE:6591 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sun Max Tech Ltd is engaged in the research and development, production, and sales of DC brushless cooling fans, liquid cooling pumps, and other computer-related accessories in Taiwan. Its products are mainly used for personal computers (PC), communications networks, and Industrial control. The company generates maximum revenue from a Cooling fan. Geographically, it derives a majority of its revenue from China and also has a presence in Taiwan and other countries.
84GF Score
Get the complete analysis for TPE:6591
Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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