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Sinotruk (Hong Kong)STU:4SK +2.88%78 Operating Margin % is 6.66% as of Dec. 2025, which is 4% below its 10-year median of 6.95. GuruFocus rates STU:4SK with a GF Score™ of 78/100 and a GF Value™ of €3.11 (Significantly Overvalued). The stock has 3 warning signs investors should review. Among 209 Farm & Heavy Construction Machinery companies, Sinotruk (Hong Kong) ranks worse than 51.67% on this metric.
The historical rank and industry rank for Sinotruk (Hong Kong)'s Operating Margin % or its related term are showing as below:
STU:4SK'
s Operating Margin % Range Over the Past 10 Years
Min: 2.98 Med: 6.95 Max: 9.27
Current: 6.76
STU:4SK's Operating Margin % is ranked worse than 51.67% of 209
companies
in the Farm & Heavy Construction Machinery industry
Industry Median: 7.02
vs STU:4SK: 6.76
Sinotruk (Hong Kong)'s 5-Year Average Operating Margin % Growth Rate was -0.60% per year.
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.
Sinotruk (Hong Kong) Operating Margin % Related Terms
Sinotruk (Hong Kong) Operating Margin % Historical Data
* Premium members only.
The historical data trend for Sinotruk (Hong Kong)'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.
STU:4SK vs CAT, DE, PCAR: Operating Margin % Comparison
For the Farm & Heavy Construction Machinery subindustry, Sinotruk (Hong Kong)'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.
Sinotruk (Hong Kong) Operating Margin % vs Farm & Heavy Construction Machinery Industry
For the Farm & Heavy Construction Machinery industry and Industrials sector, Sinotruk (Hong Kong)'s Operating Margin % distribution charts can be found below:
* The bar in red indicates where Sinotruk (Hong Kong)'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.
Sinotruk (Hong Kong)'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.
Sinotruk (Hong Kong) (STU:4SK) has a Operating Margin % of 6.66% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Sinotruk (Hong Kong) and its competitors. This is near median its historical median of 6.95. Over the past decade, Sinotruk (Hong Kong)'s Operating Margin % has ranged from 2.98 to 9.27. According to the industry distribution chart, Sinotruk (Hong Kong) ranks #108 out of 209 companies in the Farm & Heavy Construction Machinery industry, placing it in the top 51.7%.
Is Sinotruk (Hong Kong)'s Operating Margin % too high?
Sinotruk (Hong Kong)'s current Operating Margin % of 6.66% is near median its 10-year median of 6.95. Over the past 10 years, this metric has ranged from a low of 2.98 to a high of 9.27. The Farm & Heavy Construction Machinery industry median Operating Margin % is 7.02. Sinotruk (Hong Kong)'s value of 6.66% is 5.1% below this industry median. Based on the distribution chart, Sinotruk (Hong Kong) ranks #108 out of 209 companies in the Farm & Heavy Construction Machinery industry, which is below the industry midpoint. Overall, Sinotruk (Hong Kong) has a GF Score™ of 78/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sinotruk (Hong Kong)'s Operating Margin % compare to CAT and DE?
According to the Farm & Heavy Construction Machinery industry distribution chart, Sinotruk (Hong Kong) ranks #108 out of 209 companies for Operating Margin %. This places Sinotruk (Hong Kong) in the lower half of its industry. The industry median Operating Margin % is 7.02. Sinotruk (Hong Kong)'s value of 6.66% is 5.1% below this benchmark. Historically, Sinotruk (Hong Kong)'s own Operating Margin % has ranged from 2.98 to 9.27 over the past decade. While the company's 10-year median is 6.95 vs. the industry median of 7.02, Sinotruk (Hong Kong) 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 Farm & Heavy Construction Machinery company?
The median Operating Margin % among Farm & Heavy Construction Machinery companies is 7.02, based on 209 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. Sinotruk (Hong Kong)'s current Operating Margin % of 6.66% is 5.1% 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 Sinotruk (Hong Kong) and its competitors. For the Farm & Heavy Construction Machinery industry, the median Operating Margin % is 7.02 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sinotruk (Hong Kong)'s current Operating Margin % is 6.66%, which is near median its own 10-year median of 6.95. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sinotruk (Hong Kong) stock overvalued right now?
Based on GuruFocus' analysis, Sinotruk (Hong Kong) (STU:4SK) is currently considered Significantly Overvalued. The stock's GF Value™ is €3.11, compared to a current price of €4.28 — trading 37.6% above its estimated fair value. The current Operating Margin % is 6.66%, which is near median its 10-year median of 6.95 and 5.1% below the Farm & Heavy Construction Machinery industry median of 7.02. Sinotruk (Hong Kong)'s overall GF Score™ is 78/100 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 Sinotruk (Hong Kong) (STU:4SK), the current Operating Margin % is 6.66% 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 Sinotruk (Hong Kong) (STU:4SK) Overvalued in 2026?
Based on GuruFocus' analysis, Sinotruk (Hong Kong) stock appears to be overvalued.
The current stock price of €4.28 is trading 37.6% above its estimated GF Value™ of €3.11.
GuruFocus considers Sinotruk (Hong Kong) to be Significantly Overvalued.
Key valuation signals for STU:4SK:
Operating Margin %: 6.66% (near median its 10-year median of 6.95)
GF Value™: €3.11 vs. price of €4.28 (37.6% above fair value)
Industry Position: 5.1% below the Farm & Heavy Construction Machinery median (#108 of 209)
No single metric tells the full story. See the STU:4SK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sinotruk (Hong Kong) Ltd is an investment holding company. The company manages its business in three segments: Heavy Duty Trucks, which includes the manufacture and sale of heavy-duty trucks, medium-heavy duty trucks, and related components; Light Duty Trucks & Others, which manufactures and sells light-duty trucks, buses, etc., and related components; and Finance, which includes the provision of auto financing services to the public. The vast majority of its revenue comes from the Heavy-duty trucks segment. Its geographical segments are Mainland China and Overseas.
78GF Score
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