Shelly Group SEXTER:SLYG +0.50%73 Operating Margin % is 26.09% as of Mar. 2026, which is 11% above its 10-year median of 23.57. GuruFocus rates XTER:SLYG with a GF Score™ of 73/100 and a GF Value™ of €66.73 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 545 Conglomerates companies, Shelly Group SE ranks better than 91.01% on this metric.
Shelly Group SE (XTER:SLYG) 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.
Shelly Group SE Operating Margin % Related Terms
Shelly Group SE Operating Margin % Historical Data
* Premium members only.
The historical data trend for Shelly Group 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.
XTER:SLYG vs HON, MMM: Operating Margin % Comparison
For the Conglomerates subindustry, Shelly Group 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.
Shelly Group SE Operating Margin % vs Conglomerates Industry
For the Conglomerates industry and Industrials sector, Shelly Group SE's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Shelly Group SE'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.
Shelly Group 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.
Shelly Group SE (XTER:SLYG) has a Operating Margin % of 26.09% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Shelly Group SE and its competitors. This is 11% above median its historical median of 23.57. Over the past decade, Shelly Group SE's Operating Margin % has ranged from 7.13 to 30.41. According to the industry distribution chart, Shelly Group SE ranks #49 out of 545 companies in the Conglomerates industry, placing it in the top 9%.
Is Shelly Group SE's Operating Margin % too high?
Shelly Group SE's current Operating Margin % of 26.09% is 11% above median its 10-year median of 23.57. Over the past 10 years, this metric has ranged from a low of 7.13 to a high of 30.41. The Conglomerates industry median Operating Margin % is 5.93. Shelly Group SE's value of 26.09% is 340% above this industry median. Based on the distribution chart, Shelly Group SE ranks #49 out of 545 companies in the Conglomerates industry, which is in the top quartile — a strong position relative to peers. Overall, Shelly Group SE has a GF Score™ of 73/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Shelly Group SE's Operating Margin % compare to HON and MMM?
According to the Conglomerates industry distribution chart, Shelly Group SE ranks #49 out of 545 companies for Operating Margin %. This places Shelly Group SE in the top 9% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 5.93. Shelly Group SE's value of 26.09% is 340% above this benchmark. Historically, Shelly Group SE's own Operating Margin % has ranged from 7.13 to 30.41 over the past decade. While the company's 10-year median is 23.57 vs. the industry median of 5.93, Shelly Group 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 Conglomerates company?
The median Operating Margin % among Conglomerates companies is 5.93, based on 545 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. Shelly Group SE's current Operating Margin % of 26.09% is 340% 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 Shelly Group SE and its competitors. For the Conglomerates industry, the median Operating Margin % is 5.93 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Shelly Group SE's current Operating Margin % is 26.09%, which is 11% above median its own 10-year median of 23.57. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Shelly Group SE stock overvalued right now?
Based on GuruFocus' analysis, Shelly Group SE (XTER:SLYG) is currently considered Modestly Undervalued. The stock's GF Value™ is €66.73, compared to a current price of €60.30 — trading 9.6% below its estimated fair value. The current Operating Margin % is 26.09%, which is 11% above median its 10-year median of 23.57 and 340% above the Conglomerates industry median of 5.93. Shelly Group SE's overall GF Score™ is 73/100 with 4 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 Shelly Group SE (XTER:SLYG), the current Operating Margin % is 26.09% 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 Shelly Group SE (XTER:SLYG) Overvalued in 2026?
Based on GuruFocus' analysis, Shelly Group SE stock appears to be undervalued.
The current stock price of €60.30 is trading 9.6% below its estimated GF Value™ of €66.73.
GuruFocus considers Shelly Group SE to be Modestly Undervalued.
Key valuation signals for XTER:SLYG:
Operating Margin %: 26.09% (11% above median its 10-year median of 23.57)
GF Value™: €66.73 vs. price of €60.30 (9.6% below fair value)
Industry Position: 340% above the Conglomerates median (#49 of 545)
No single metric tells the full story. See the XTER:SLYG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Shelly Group SE is engaged in the acquisition, management, evaluation, and sale of participations in Bulgarian & foreign companies; acquisition, management, and sale of bonds; acquisition, evaluation, sale, and patents. The company delivers innovation through designing, producing, and distributing high-quality IoT products. The group manages the business with electronic devices as one operating segment. It derives the majority of its revenue from the sale of smart devices.
73GF Score
Get the complete analysis for XTER:SLYG
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
XTER:SLYG has been successfully added to your 
