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Star Lake Bioscience Co Inc operating margin has been in a 5-year decline. The average rate of decline per year is -8.7%.
The historical rank and industry rank for Star Lake Bioscience Co's Operating Margin % or its related term are showing as below:
SHSE:600866'
s Operating Margin % Range Over the Past 10 Years
Min: -1.93 Med: 8.55 Max: 17.67
Current: 3.99
SHSE:600866's Operating Margin % is ranked better than 74.87% of 939
companies
in the Biotechnology industry
Industry Median: -86.33
vs SHSE:600866: 3.99
Star Lake Bioscience Co's 5-Year Average Operating Margin % Growth Rate was -8.70% per year.
Star Lake Bioscience Co (SHSE:600866) 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.
Star Lake Bioscience Co Operating Margin % Related Terms
Star Lake Bioscience Co Operating Margin % Historical Data
* Premium members only.
The historical data trend for Star Lake Bioscience Co'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.
SHSE:600866 vs VRTX, REGN, ALNY: Operating Margin % Comparison
For the Biotechnology subindustry, Star Lake Bioscience 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.
Star Lake Bioscience Co Operating Margin % vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Star Lake Bioscience Co's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Star Lake Bioscience Co's Operating Margin % falls into.
Star Lake Bioscience 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.
Star Lake Bioscience Co'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.
Star Lake Bioscience Co (SHSE:600866) has a Operating Margin % of -0.87% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Star Lake Bioscience Co and its competitors. According to the industry distribution chart, Star Lake Bioscience Co ranks #236 out of 939 companies in the Biotechnology industry, placing it in the top 25.1%.
Is Star Lake Bioscience Co's Operating Margin % too high?
Star Lake Bioscience Co's current Operating Margin % is -0.87%. Based on the distribution chart, Star Lake Bioscience Co ranks #236 out of 939 companies in the Biotechnology industry, which is above the industry midpoint. Overall, Star Lake Bioscience Co has a GF Score™ of 70/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Star Lake Bioscience Co's Operating Margin % compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, Star Lake Bioscience Co ranks #236 out of 939 companies for Operating Margin %. This puts Star Lake Bioscience Co in the upper half of its industry. 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 Biotechnology company?
A good Operating Margin % depends on the Biotechnology industry context. 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 Star Lake Bioscience Co and its competitors. Star Lake Bioscience Co's current Operating Margin % is -0.87%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Star Lake Bioscience Co stock overvalued right now?
Based on GuruFocus' analysis, Star Lake Bioscience Co (SHSE:600866) is currently considered Modestly Undervalued. The stock's GF Value™ is ¥5.86, compared to a current price of ¥5.01 — trading 14.5% below its estimated fair value. The current Operating Margin % is -0.87%. Star Lake Bioscience Co's overall GF Score™ is 70/100 with 7 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 Star Lake Bioscience Co (SHSE:600866), the current Operating Margin % is -0.87% 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 Star Lake Bioscience Co (SHSE:600866) Overvalued in 2026?
Based on GuruFocus' analysis, Star Lake Bioscience Co stock appears to be undervalued.
The current stock price of ¥5.01 is trading 14.5% below its estimated GF Value™ of ¥5.86.
GuruFocus considers Star Lake Bioscience Co to be Modestly Undervalued.
Key valuation signals for SHSE:600866:
Operating Margin %: -0.87%
GF Value™: ¥5.86 vs. price of ¥5.01 (14.5% below fair value)
No single metric tells the full story. See the SHSE:600866 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Star Lake Bioscience Co Inc is a China-based Pharmaceutical manufacturer. The company is mainly engaged in the research, development, production, and sales of chemical raw materials and pharmaceutical intermediates. Products offered by the company include proline, guanosine, adenosine, adenine, adefovir dipivoxil, memantine hydrochloride, Proline, threonine, lysine, among others. Its products are used in food processing, feed processing, and pharmaceutical manufacturing. Star Lake sells its products through direct sales and distributors in China and overseas markets.
70GF Score
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Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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