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.
COSMOS PharmaceuticalCSMYF 93 Operating Margin % is 4.15% as of Feb. 2026, which is 2% above its 10-year median of 4.07. GuruFocus rates CSMYF with a GF Score™ of 93/100 and a GF Value™ of $50.48 (Modestly Undervalued). The stock has 2 warning signs investors should review. Among 664 Healthcare Providers & Services companies, COSMOS Pharmaceutical ranks worse than 54.97% on this metric.
COSMOS Pharmaceutical Corp operating margin has been in a 5-year decline. The average rate of decline per year is -3.9%.
The historical rank and industry rank for COSMOS Pharmaceutical's Operating Margin % or its related term are showing as below:
CSMYF'
s Operating Margin % Range Over the Past 10 Years
Min: 3.26 Med: 4.07 Max: 4.56
Current: 3.82
CSMYF's Operating Margin % is ranked worse than 54.97% of 664
companies
in the Healthcare Providers & Services industry
Industry Median: 4.865
vs CSMYF: 3.82
COSMOS Pharmaceutical's 5-Year Average Operating Margin % Growth Rate was -3.90% 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.
COSMOS Pharmaceutical Operating Margin % Related Terms
COSMOS Pharmaceutical Operating Margin % Historical Data
* Premium members only.
The historical data trend for COSMOS Pharmaceutical'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.
For the Pharmaceutical Retailers subindustry, COSMOS Pharmaceutical'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.
COSMOS Pharmaceutical Operating Margin % vs Healthcare Providers & Services Industry
For the Healthcare Providers & Services industry and Healthcare sector, COSMOS Pharmaceutical's Operating Margin % distribution charts can be found below:
* The bar in red indicates where COSMOS Pharmaceutical'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.
COSMOS Pharmaceutical's Operating Margin % for the fiscal year that ended in May. 2026 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.
COSMOS Pharmaceutical (CSMYF) has a Operating Margin % of 4.15% as of Feb. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on COSMOS Pharmaceutical and its competitors. This is near median its historical median of 4.07. Over the past decade, COSMOS Pharmaceutical's Operating Margin % has ranged from 3.26 to 4.56. According to the industry distribution chart, COSMOS Pharmaceutical ranks #365 out of 664 companies in the Healthcare Providers & Services industry, placing it in the top 55%.
Is COSMOS Pharmaceutical's Operating Margin % too high?
COSMOS Pharmaceutical's current Operating Margin % of 4.15% is near median its 10-year median of 4.07. Over the past 10 years, this metric has ranged from a low of 3.26 to a high of 4.56. The Healthcare Providers & Services industry median Operating Margin % is 4.87. COSMOS Pharmaceutical's value of 4.15% is 14.7% below this industry median. Based on the distribution chart, COSMOS Pharmaceutical ranks #365 out of 664 companies in the Healthcare Providers & Services industry, which is below the industry midpoint. Overall, COSMOS Pharmaceutical has a GF Score™ of 93/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does COSMOS Pharmaceutical's Operating Margin % compare to competitors?
According to the Healthcare Providers & Services industry distribution chart, COSMOS Pharmaceutical ranks #365 out of 664 companies for Operating Margin %. This places COSMOS Pharmaceutical in the lower half of its industry. The industry median Operating Margin % is 4.87. COSMOS Pharmaceutical's value of 4.15% is 14.7% below this benchmark. Historically, COSMOS Pharmaceutical's own Operating Margin % has ranged from 3.26 to 4.56 over the past decade. While the company's 10-year median is 4.07 vs. the industry median of 4.87, COSMOS Pharmaceutical 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 Healthcare Providers & Services company?
The median Operating Margin % among Healthcare Providers & Services companies is 4.87, based on 664 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. COSMOS Pharmaceutical's current Operating Margin % of 4.15% is 14.7% 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 COSMOS Pharmaceutical and its competitors. For the Healthcare Providers & Services industry, the median Operating Margin % is 4.87 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. COSMOS Pharmaceutical's current Operating Margin % is 4.15%, which is near median its own 10-year median of 4.07. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is COSMOS Pharmaceutical stock overvalued right now?
Based on GuruFocus' analysis, COSMOS Pharmaceutical (CSMYF) is currently considered Modestly Undervalued. The stock's GF Value™ is $50.48, compared to a current price of $37.06 — trading 26.6% below its estimated fair value. The current Operating Margin % is 4.15%, which is near median its 10-year median of 4.07 and 14.7% below the Healthcare Providers & Services industry median of 4.87. COSMOS Pharmaceutical's overall GF Score™ is 93/100 with 2 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 COSMOS Pharmaceutical (CSMYF), the current Operating Margin % is 4.15% as of Feb. 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 COSMOS Pharmaceutical (CSMYF) Overvalued in 2026?
Based on GuruFocus' analysis, COSMOS Pharmaceutical stock appears to be undervalued.
The current stock price of $37.06 is trading 26.6% below its estimated GF Value™ of $50.48.
GuruFocus considers COSMOS Pharmaceutical to be Modestly Undervalued.
Key valuation signals for CSMYF:
Operating Margin %: 4.15% (near median its 10-year median of 4.07)
GF Value™: $50.48 vs. price of $37.06 (26.6% below fair value)
Industry Position: 14.7% below the Healthcare Providers & Services median (#365 of 664)
No single metric tells the full story. See the CSMYF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
COSMOS Pharmaceutical Corp manages retail drugstores in Japan. The company emphasizes convenience regarding its product selection, which includes medical products, health and beauty aids, personal-care items, discount cosmetics, household items, food and beverages, greeting cards, seasonal merchandise, alcoholic beverages, tobacco, insect repellent, and miscellaneous everyday consumables. The majority of the company's revenue is derived from common grocery sales. It also operates a private grocery brand called ON 365.
93GF Score
Get the complete analysis for CSMYF
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
CSMYF has been successfully added to your 
