Bangkok Dusit Medical Services PCLBKK:BDMS +1.10%90 Operating Margin % is 18.51% as of Mar. 2026, which is 22% above its 10-year median of 15.16. GuruFocus rates BKK:BDMS with a GF Score™ of 90/100 and a GF Value™ of ฿28.05 (Significantly Undervalued). The stock has 2 warning signs investors should review. Among 668 Healthcare Providers & Services companies, Bangkok Dusit Medical Services PCL ranks better than 87.28% on this metric.
Bangkok Dusit Medical Services PCL operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for Bangkok Dusit Medical Services PCL's Operating Margin % or its related term are showing as below:
BKK:BDMS'
s Operating Margin % Range Over the Past 10 Years
Min: 12.52 Med: 15.16 Max: 18.96
Current: 17.71
BKK:BDMS's Operating Margin % is ranked better than 87.28% of 668
companies
in the Healthcare Providers & Services industry
Industry Median: 4.845
vs BKK:BDMS: 17.71
Bangkok Dusit Medical Services PCL (BKK:BDMS) 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.
Bangkok Dusit Medical Services PCL Operating Margin % Related Terms
Bangkok Dusit Medical Services PCL 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.
Bangkok Dusit Medical Services PCL Operating Margin % Chart
BKK:BDMS vs HCA, THC, DVA: Operating Margin % Comparison
For the Medical Care Facilities subindustry, Bangkok Dusit Medical Services PCL'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.
Bangkok Dusit Medical Services PCL Operating Margin % vs Healthcare Providers & Services Industry
For the Healthcare Providers & Services industry and Healthcare sector, Bangkok Dusit Medical Services PCL's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Bangkok Dusit Medical Services PCL's Operating Margin % falls into.
Bangkok Dusit Medical Services PCL 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.
Bangkok Dusit Medical Services PCL (BKK:BDMS) has a Operating Margin % of 18.51% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Bangkok Dusit Medical Services PCL and its competitors. This is 22% above median its historical median of 15.16. Over the past decade, Bangkok Dusit Medical Services PCL's Operating Margin % has ranged from 12.52 to 18.96. According to the industry distribution chart, Bangkok Dusit Medical Services PCL ranks #85 out of 668 companies in the Healthcare Providers & Services industry, placing it in the top 12.7%.
Is Bangkok Dusit Medical Services PCL's Operating Margin % too high?
Bangkok Dusit Medical Services PCL's current Operating Margin % of 18.51% is 22% above median its 10-year median of 15.16. Over the past 10 years, this metric has ranged from a low of 12.52 to a high of 18.96. The Healthcare Providers & Services industry median Operating Margin % is 4.85. Bangkok Dusit Medical Services PCL's value of 18.51% is 282% above this industry median. Based on the distribution chart, Bangkok Dusit Medical Services PCL ranks #85 out of 668 companies in the Healthcare Providers & Services industry, which is in the top quartile — a strong position relative to peers. Overall, Bangkok Dusit Medical Services PCL has a GF Score™ of 90/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Bangkok Dusit Medical Services PCL's Operating Margin % compare to HCA and THC?
According to the Healthcare Providers & Services industry distribution chart, Bangkok Dusit Medical Services PCL ranks #85 out of 668 companies for Operating Margin %. This places Bangkok Dusit Medical Services PCL in the top 13% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 4.85. Bangkok Dusit Medical Services PCL's value of 18.51% is 282% above this benchmark. Historically, Bangkok Dusit Medical Services PCL's own Operating Margin % has ranged from 12.52 to 18.96 over the past decade. While the company's 10-year median is 15.16 vs. the industry median of 4.85, Bangkok Dusit Medical Services PCL has consistently been above 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 4.85, based on 668 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. Bangkok Dusit Medical Services PCL's current Operating Margin % of 18.51% is 282% above 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 Bangkok Dusit Medical Services PCL and its competitors. For the Healthcare Providers & Services industry, the median Operating Margin % is 4.85 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Bangkok Dusit Medical Services PCL's current Operating Margin % is 18.51%, which is 22% above median its own 10-year median of 15.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Bangkok Dusit Medical Services PCL stock overvalued right now?
Based on GuruFocus' analysis, Bangkok Dusit Medical Services PCL (BKK:BDMS) is currently considered Significantly Undervalued. The stock's GF Value™ is ฿28.05, compared to a current price of ฿18.40 — trading 34.4% below its estimated fair value. The current Operating Margin % is 18.51%, which is 22% above median its 10-year median of 15.16 and 282% above the Healthcare Providers & Services industry median of 4.85. Bangkok Dusit Medical Services PCL's overall GF Score™ is 90/100 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 Bangkok Dusit Medical Services PCL (BKK:BDMS), the current Operating Margin % is 18.51% 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 Bangkok Dusit Medical Services PCL (BKK:BDMS) Overvalued in 2026?
Based on GuruFocus' analysis, Bangkok Dusit Medical Services PCL stock appears to be undervalued.
The current stock price of ฿18.40 is trading 34.4% below its estimated GF Value™ of ฿28.05.
GuruFocus considers Bangkok Dusit Medical Services PCL to be Significantly Undervalued.
Key valuation signals for BKK:BDMS:
Operating Margin %: 18.51% (22% above median its 10-year median of 15.16)
GF Value™: ฿28.05 vs. price of ฿18.40 (34.4% below fair value)
Industry Position: 282% above the Healthcare Providers & Services median (#85 of 668)
No single metric tells the full story. See the BKK:BDMS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Bangkok Dusit Medical Services PCL Business Description
Bangkok Dusit Medical Services PCL operates a network of private hospitals in Thailand and some overseas markets, under the Bangkok Hospital, Phyathai Hospital, Samitivej Hospital, Paolo Hospital, BNH Hospital, and Royal International Hospital brands. The company has two business segments, namely hospital operations and other businesses that support hospital business, such as medical laboratories, production and distribution of pharmaceutical products/medical equipment/saline, pharmacies, asset management for healthcare business, accounting services, technology and information services, training business, and insurance broker. The company's hospital operations generate the vast majority of its revenue.
90GF Score
Get the complete analysis for BKK:BDMS
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
BKK:BDMS has been successfully added to your 
