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GrolleauSTU:30U +8.05%72 Gross Margin % is 30.61% as of Dec. 2025, which is 9% below its 10-year median of 33.73. GuruFocus rates STU:30U with a GF Score™ of 72/100 and a GF Value™ of €7.07 (Possible Value Trap). The stock has 3 warning signs investors should review. Among 2,999 Industrial Products companies, Grolleau ranks better than 64.82% on this metric.
Gross Margin % is calculated as gross profit divided by its revenue. Grolleau's Gross Profit for the
six
months ended in Dec. 2025 was €8.41 Mil. Grolleau's Revenue for the
six
months ended in Dec. 2025 was €27.48 Mil. Therefore, Grolleau's Gross Margin % for the quarter that ended in Dec. 2025 was 30.61%.
Warning Sign:
Grolleau SA gross margin has been in long-term decline. The average rate of decline per year is -1.2%.
The historical rank and industry rank for Grolleau's Gross Margin % or its related term are showing as below:
STU:30U'
s Gross Margin % Range Over the Past 10 Years
Min: 31.65 Med: 33.73 Max: 36.9
Current: 32.64
During the past 7 years, the highestGross Margin % of Grolleau was 36.90%. The lowest was 31.65%. And the median was 33.73%.
STU:30U's Gross Margin % is ranked better than 64.82% of 2999
companies
in the Industrial Products industry
Industry Median: 26.81
vs STU:30U: 32.64
Grolleau had a gross margin of 30.61% for the quarter that ended in Dec. 2025 => Competition eroding margins
The 5-Year average Growth Rate of Gross Margin for Grolleau was -1.20% per year.
Grolleau (STU:30U) Gross Margin % Explanation
Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.
Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %
1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key
Grolleau had a gross margin of 30.61% for the quarter that ended in Dec. 2025 => Competition eroding margins
Be Aware
If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.
Grolleau Gross Margin % Related Terms
Grolleau Gross Margin % Historical Data
* Premium members only.
The historical data trend for Grolleau's Gross 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:30U vs CRS, ATI, MLI: Gross Margin % Comparison
For the Metal Fabrication subindustry, Grolleau's Gross Margin %, along with its competitors' market caps and Gross 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.
Grolleau Gross Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Grolleau's Gross Margin % distribution charts can be found below:
* The bar in red indicates where Grolleau's Gross Margin % falls into.
* 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.
A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.
Grolleau (STU:30U) has a Gross Margin % of 30.61% as of Dec. 2025. Gross margin is the ratio of total gross profit to net sales. View historical data on Grolleau and its competitors. This is near median its historical median of 33.73. Over the past decade, Grolleau's Gross Margin % has ranged from 31.65 to 36.90. According to the industry distribution chart, Grolleau ranks #1055 out of 2999 companies in the Industrial Products industry, placing it in the top 35.2%.
Is Grolleau's Gross Margin % too high?
Grolleau's current Gross Margin % of 30.61% is near median its 10-year median of 33.73. Over the past 10 years, this metric has ranged from a low of 31.65 to a high of 36.90. The Industrial Products industry median Gross Margin % is 26.81. Grolleau's value of 30.61% is 14.2% above this industry median. Based on the distribution chart, Grolleau ranks #1055 out of 2999 companies in the Industrial Products industry, which is above the industry midpoint. Overall, Grolleau has a GF Score™ of 72/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Grolleau's Gross Margin % compare to CRS and ATI?
According to the Industrial Products industry distribution chart, Grolleau ranks #1055 out of 2999 companies for Gross Margin %. This puts Grolleau in the upper half of its industry. The industry median Gross Margin % is 26.81. Grolleau's value of 30.61% is 14.2% above this benchmark. Historically, Grolleau's own Gross Margin % has ranged from 31.65 to 36.90 over the past decade. While the company's 10-year median is 33.73 vs. the industry median of 26.81, Grolleau 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 Gross Margin % for an Industrial Products company?
The median Gross Margin % among Industrial Products companies is 26.81, based on 2,999 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Grolleau's current Gross Margin % of 30.61% is 14.2% 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on Grolleau and its competitors. For the Industrial Products industry, the median Gross Margin % is 26.81 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Grolleau's current Gross Margin % is 30.61%, which is near median its own 10-year median of 33.73. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Grolleau stock overvalued right now?
Based on GuruFocus' analysis, Grolleau (STU:30U) is currently considered Possible Value Trap. The stock's GF Value™ is €7.07, compared to a current price of €3.76 — trading 46.8% below its estimated fair value. The current Gross Margin % is 30.61%, which is near median its 10-year median of 33.73 and 14.2% above the Industrial Products industry median of 26.81. Grolleau's overall GF Score™ is 72/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For Grolleau (STU:30U), the current Gross Margin % is 30.61% 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 Grolleau (STU:30U) Overvalued in 2026?
Based on GuruFocus' analysis, Grolleau stock appears to be undervalued.
The current stock price of €3.76 is trading 46.8% below its estimated GF Value™ of €7.07.
GuruFocus considers Grolleau to be Possible Value Trap.
Key valuation signals for STU:30U:
Gross Margin %: 30.61% (near median its 10-year median of 33.73)
GF Value™: €7.07 vs. price of €3.76 (46.8% below fair value)
Industry Position: 14.2% above the Industrial Products median (#1055 of 2999)
No single metric tells the full story. See the STU:30U stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Grolleau SA is specialized in the design, manufacture and marketing of metal cabinets for use in utility infrastructure such as telecommunications, green energy, industries and others.
72GF Score
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