Eckert & Ziegler SESTU:EUZ -0.97%98 Operating Margin % is 21.90% as of Mar. 2026, which is 14% above its 10-year median of 19.13. GuruFocus rates STU:EUZ with a GF Score™ of 98/100 and a GF Value™ of €16.10 (Fairly Valued). Among 816 Medical Devices & Instruments companies, Eckert & Ziegler SE ranks better than 90.93% on this metric.
Eckert & Ziegler SE operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for Eckert & Ziegler SE's Operating Margin % or its related term are showing as below:
STU:EUZ'
s Operating Margin % Range Over the Past 10 Years
Min: 12.54 Med: 19.13 Max: 24.13
Current: 23.84
STU:EUZ's Operating Margin % is ranked better than 90.93% of 816
companies
in the Medical Devices & Instruments industry
Industry Median: 3.465
vs STU:EUZ: 23.84
Eckert & Ziegler SE's 5-Year Average Operating Margin % Growth Rate was 4.10% per year.
Eckert & Ziegler SE (STU:EUZ) 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.
Eckert & Ziegler SE Operating Margin % Related Terms
Eckert & Ziegler SE Operating Margin % Historical Data
* Premium members only.
The historical data trend for Eckert & Ziegler SE'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:EUZ vs ABT, SYK, MDT: Operating Margin % Comparison
For the Medical Devices subindustry, Eckert & Ziegler SE'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.
Eckert & Ziegler SE Operating Margin % vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Eckert & Ziegler SE's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Eckert & Ziegler SE's Operating Margin % falls into.
Eckert & Ziegler SE 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.
Eckert & Ziegler SE'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.
Eckert & Ziegler SE (STU:EUZ) has a Operating Margin % of 21.90% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Eckert & Ziegler SE and its competitors. This is 14% above median its historical median of 19.13. Over the past decade, Eckert & Ziegler SE's Operating Margin % has ranged from 12.54 to 24.13. According to the industry distribution chart, Eckert & Ziegler SE ranks #74 out of 816 companies in the Medical Devices & Instruments industry, placing it in the top 9.1%.
Is Eckert & Ziegler SE's Operating Margin % too high?
Eckert & Ziegler SE's current Operating Margin % of 21.90% is 14% above median its 10-year median of 19.13. Over the past 10 years, this metric has ranged from a low of 12.54 to a high of 24.13. The Medical Devices & Instruments industry median Operating Margin % is 3.47. Eckert & Ziegler SE's value of 21.90% is 532% above this industry median. Based on the distribution chart, Eckert & Ziegler SE ranks #74 out of 816 companies in the Medical Devices & Instruments industry, which is in the top quartile — a strong position relative to peers. Overall, Eckert & Ziegler SE has a GF Score™ of 98/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Eckert & Ziegler SE's Operating Margin % compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, Eckert & Ziegler SE ranks #74 out of 816 companies for Operating Margin %. This places Eckert & Ziegler SE in the top 9% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 3.47. Eckert & Ziegler SE's value of 21.90% is 532% above this benchmark. Historically, Eckert & Ziegler SE's own Operating Margin % has ranged from 12.54 to 24.13 over the past decade. While the company's 10-year median is 19.13 vs. the industry median of 3.47, Eckert & Ziegler SE 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 Medical Devices & Instruments company?
The median Operating Margin % among Medical Devices & Instruments companies is 3.47, based on 816 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. Eckert & Ziegler SE's current Operating Margin % of 21.90% is 532% 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 Eckert & Ziegler SE and its competitors. For the Medical Devices & Instruments industry, the median Operating Margin % is 3.47 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Eckert & Ziegler SE's current Operating Margin % is 21.90%, which is 14% above median its own 10-year median of 19.13. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Eckert & Ziegler SE stock overvalued right now?
Based on GuruFocus' analysis, Eckert & Ziegler SE (STU:EUZ) is currently considered Fairly Valued. The stock's GF Value™ is €16.10, compared to a current price of €15.36 — trading 4.6% below its estimated fair value. The current Operating Margin % is 21.90%, which is 14% above median its 10-year median of 19.13 and 532% above the Medical Devices & Instruments industry median of 3.47. Eckert & Ziegler SE's overall GF Score™ is 98/100. 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 Eckert & Ziegler SE (STU:EUZ), the current Operating Margin % is 21.90% 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 Eckert & Ziegler SE (STU:EUZ) Overvalued in 2026?
Based on GuruFocus' analysis, Eckert & Ziegler SE stock appears to be undervalued.
The current stock price of €15.36 is trading 4.6% below its estimated GF Value™ of €16.10.
GuruFocus considers Eckert & Ziegler SE to be Fairly Valued.
Key valuation signals for STU:EUZ:
Operating Margin %: 21.90% (14% above median its 10-year median of 19.13)
GF Value™: €16.10 vs. price of €15.36 (4.6% below fair value)
Industry Position: 532% above the Medical Devices & Instruments median (#74 of 816)
No single metric tells the full story. See the STU:EUZ stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Eckert & Ziegler SE is a holding company with specialised in the processing of radioisotopes and the development, production and sale of isotope technology components, radiopharmaceuticals and related products. It is an international manufacturer of isotope technology components for medical, scientific, and industrial applications. The group's products are mainly used in cancer therapy, nuclear imaging, and industrial metrology. The company's segments are Medical, Isotope Products, and Other. The majority of revenue comes from Medical segment which provides pharmaceutical-quality radioactive ingredients and markets products for the treatment and diagnosis of cancers. Geographically, the company generates a majority of its revenue from Europe and then North America, Asia/Pacific, and other.
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