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.
China Traditional Chinese Medicine Holdings Co (STU:WSG) 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.
China Traditional Chinese Medicine Holdings Co Operating Margin % Related Terms
China Traditional Chinese Medicine Holdings Co 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.
China Traditional Chinese Medicine Holdings Co Operating Margin % Chart
China Traditional Chinese Medicine Holdings Co Annual Data
For the Drug Manufacturers - Specialty & Generic subindustry, China Traditional Chinese Medicine Holdings Co'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.
China Traditional Chinese Medicine Holdings Co Operating Margin % vs Drug Manufacturers Industry
China Traditional Chinese Medicine Holdings Co Operating Margin % Calculation
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.
China Traditional Chinese Medicine Holdings Co (STU:WSG) has a Operating Margin % of 3.17% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on China Traditional Chinese Medicine Holdings Co and its competitors. This is 80% below median its historical median of 15.47. Over the past decade, China Traditional Chinese Medicine Holdings Co's Operating Margin % has ranged from 4.20 to 20.96. According to the industry distribution chart, China Traditional Chinese Medicine Holdings Co ranks #571 out of 961 companies in the Drug Manufacturers industry, placing it in the top 59.4%.
Is China Traditional Chinese Medicine Holdings Co's Operating Margin % too high?
China Traditional Chinese Medicine Holdings Co's current Operating Margin % of 3.17% is 80% below median its 10-year median of 15.47. Over the past 10 years, this metric has ranged from a low of 4.20 to a high of 20.96. The Drug Manufacturers industry median Operating Margin % is 7.59. China Traditional Chinese Medicine Holdings Co's value of 3.17% is 58.2% below this industry median. Based on the distribution chart, China Traditional Chinese Medicine Holdings Co ranks #571 out of 961 companies in the Drug Manufacturers industry, which is below the industry midpoint. Overall, China Traditional Chinese Medicine Holdings Co has a GF Score™ of 78/100, reflecting its overall financial health beyond just this single metric.
How does China Traditional Chinese Medicine Holdings Co's Operating Margin % compare to ZTS?
According to the Drug Manufacturers industry distribution chart, China Traditional Chinese Medicine Holdings Co ranks #571 out of 961 companies for Operating Margin %. This places China Traditional Chinese Medicine Holdings Co in the lower half of its industry. The industry median Operating Margin % is 7.59. China Traditional Chinese Medicine Holdings Co's value of 3.17% is 58.2% below this benchmark. Historically, China Traditional Chinese Medicine Holdings Co's own Operating Margin % has ranged from 4.20 to 20.96 over the past decade. While the company's 10-year median is 15.47 vs. the industry median of 7.59, China Traditional Chinese Medicine Holdings Co 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 Drug Manufacturers company?
The median Operating Margin % among Drug Manufacturers companies is 7.59, based on 961 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. China Traditional Chinese Medicine Holdings Co's current Operating Margin % of 3.17% is 58.2% 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 China Traditional Chinese Medicine Holdings Co and its competitors. For the Drug Manufacturers industry, the median Operating Margin % is 7.59 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. China Traditional Chinese Medicine Holdings Co's current Operating Margin % is 3.17%, which is 80% below median its own 10-year median of 15.47. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is China Traditional Chinese Medicine Holdings Co stock overvalued right now?
China Traditional Chinese Medicine Holdings Co (STU:WSG) has a current Operating Margin % of 3.17%. The stock's GF Value™ is €0.45, compared to a current price of €0.22 — trading 51.1% below its estimated fair value. The current Operating Margin % is 3.17%, which is 80% below median its 10-year median of 15.47 and 58.2% below the Drug Manufacturers industry median of 7.59. China Traditional Chinese Medicine Holdings Co's overall GF Score™ is 78/100 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 China Traditional Chinese Medicine Holdings Co (STU:WSG), the current Operating Margin % is 3.17% 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 China Traditional Chinese Medicine Holdings Co (STU:WSG) Overvalued in 2026?
Based on GuruFocus' analysis, China Traditional Chinese Medicine Holdings Co stock appears to be undervalued.
The current stock price of €0.22 is trading 51.1% below its estimated GF Value™ of €0.45.
Key valuation signals for STU:WSG:
Operating Margin %: 3.17% (80% below median its 10-year median of 15.47)
GF Value™: €0.45 vs. price of €0.22 (51.1% below fair value)
Industry Position: 58.2% below the Drug Manufacturers median (#571 of 961)
No single metric tells the full story. See the STU:WSG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
China Traditional Chinese Medicine Holdings Co Ltd is engaged in the Chinese healthcare sector. The company functions through four segments: Yi Fang, Tian Jiang, Tong Ji Tang, and Medi-World. It generates maximum revenue from the Yifang segment which mainly engages in the manufacture and sales of concentrated TCM granules (CTCMG), TCM healthcare products, and TCM decoction pieces under the Yi Fang brand. The majority of the revenue of the Yi Fang segment is derived from the sales of CTCMG. Geographically, it derives a majority of its revenue from Mainland China, and also has its presence in Hong Kong and Other countries.
78GF Score
Get the complete analysis for STU:WSG
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
STU:WSG has been successfully added to your 
