Kumulus VapeSTU:8E9 -4.33%68 Operating Margin % is 1.80% as of Dec. 2025, which is 67% below its 10-year median of 5.47. GuruFocus rates STU:8E9 with a GF Score™ of 68/100 and a GF Value™ of €5.92 (Significantly Undervalued). The stock has 3 warning signs investors should review. Among 1,128 Retail - Cyclical companies, Kumulus Vape ranks worse than 52.57% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Kumulus Vape's Operating Income for the
six
months ended in Dec. 2025 was €0.55 Mil. Kumulus Vape's Revenue for the
six
months ended in Dec. 2025 was €30.28 Mil. Therefore, Kumulus Vape's Operating Margin % for the quarter that ended in Dec. 2025 was 1.80%.
Warning Sign:
Kumulus Vape operating margin has been in a 5-year decline. The average rate of decline per year is -5.9%.
The historical rank and industry rank for Kumulus Vape's Operating Margin % or its related term are showing as below:
STU:8E9'
s Operating Margin % Range Over the Past 10 Years
Min: 2.37 Med: 5.47 Max: 6.06
Current: 3.41
STU:8E9's Operating Margin % is ranked worse than 52.57% of 1128
companies
in the Retail - Cyclical industry
Industry Median: 3.905
vs STU:8E9: 3.41
Kumulus Vape's 5-Year Average Operating Margin % Growth Rate was -5.90% per year.
Kumulus Vape's Operating Income for the
six
months ended in Dec. 2025 was €0.55 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was €1.96 Mil.
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.
Kumulus Vape Operating Margin % Related Terms
Kumulus Vape Operating Margin % Historical Data
* Premium members only.
The historical data trend for Kumulus Vape'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:8E9 vs AMZN, BABA, PDD: Operating Margin % Comparison
For the Internet Retail subindustry, Kumulus Vape'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.
Kumulus Vape Operating Margin % vs Retail - Cyclical Industry
For the Retail - Cyclical industry and Consumer Cyclical sector, Kumulus Vape's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Kumulus Vape'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.
Kumulus Vape'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.
Kumulus Vape (STU:8E9) has a Operating Margin % of 1.80% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Kumulus Vape and its competitors. This is 67% below median its historical median of 5.47. Over the past decade, Kumulus Vape's Operating Margin % has ranged from 2.37 to 6.06. According to the industry distribution chart, Kumulus Vape ranks #593 out of 1128 companies in the Retail - Cyclical industry, placing it in the top 52.6%.
Is Kumulus Vape's Operating Margin % too high?
Kumulus Vape's current Operating Margin % of 1.80% is 67% below median its 10-year median of 5.47. Over the past 10 years, this metric has ranged from a low of 2.37 to a high of 6.06. The Retail - Cyclical industry median Operating Margin % is 3.91. Kumulus Vape's value of 1.80% is 53.9% below this industry median. Based on the distribution chart, Kumulus Vape ranks #593 out of 1128 companies in the Retail - Cyclical industry, which is below the industry midpoint. Overall, Kumulus Vape has a GF Score™ of 68/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Kumulus Vape's Operating Margin % compare to AMZN and BABA?
According to the Retail - Cyclical industry distribution chart, Kumulus Vape ranks #593 out of 1128 companies for Operating Margin %. This places Kumulus Vape in the lower half of its industry. The industry median Operating Margin % is 3.91. Kumulus Vape's value of 1.80% is 53.9% below this benchmark. Historically, Kumulus Vape's own Operating Margin % has ranged from 2.37 to 6.06 over the past decade. While the company's 10-year median is 5.47 vs. the industry median of 3.91, Kumulus Vape 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 Retail - Cyclical company?
The median Operating Margin % among Retail - Cyclical companies is 3.91, based on 1,128 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. Kumulus Vape's current Operating Margin % of 1.80% is 53.9% 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 Kumulus Vape and its competitors. For the Retail - Cyclical industry, the median Operating Margin % is 3.91 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Kumulus Vape's current Operating Margin % is 1.80%, which is 67% below median its own 10-year median of 5.47. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Kumulus Vape stock overvalued right now?
Based on GuruFocus' analysis, Kumulus Vape (STU:8E9) is currently considered Significantly Undervalued. The stock's GF Value™ is €5.92, compared to a current price of €2.87 — trading 51.5% below its estimated fair value. The current Operating Margin % is 1.80%, which is 67% below median its 10-year median of 5.47 and 53.9% below the Retail - Cyclical industry median of 3.91. Kumulus Vape's overall GF Score™ is 68/100 with 3 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 Kumulus Vape (STU:8E9), the current Operating Margin % is 1.80% as of Dec. 2025. 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 Kumulus Vape (STU:8E9) Overvalued in 2026?
Based on GuruFocus' analysis, Kumulus Vape stock appears to be undervalued.
The current stock price of €2.87 is trading 51.5% below its estimated GF Value™ of €5.92.
GuruFocus considers Kumulus Vape to be Significantly Undervalued.
Key valuation signals for STU:8E9:
Operating Margin %: 1.80% (67% below median its 10-year median of 5.47)
GF Value™: €5.92 vs. price of €2.87 (51.5% below fair value)
Industry Position: 53.9% below the Retail - Cyclical median (#593 of 1128)
No single metric tells the full story. See the STU:8E9 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Kumulus Vape specializes in the online distribution of electronic cigarettes and related products (equipment, e-liquids, and accessories). The activity is organized around two business areas: BtoC: the company commercializes its retail products on its online platform; BtoB: the KMLS PRO platform is the central purchase platform for professionals (networks of several outlets or independent shops) in the vape sector.
68GF Score
Get the complete analysis for STU:8E9
Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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