Groupe GuillinSTU:ZUY 77 FCF Margin % is 8.02% as of Dec. 2025, which is 80% above its 10-year median of 4.45. GuruFocus rates STU:ZUY with a GF Score™ of 77/100 and a GF Value™ of €28.60 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 391 Packaging & Containers companies, Groupe Guillin ranks worse than 51.66% on this metric.
The historical rank and industry rank for Groupe Guillin's FCF Margin % or its related term are showing as below:
STU:ZUY'
s FCF Margin % Range Over the Past 10 Years
Min: 0.56 Med: 4.45 Max: 11.81
Current: 2.42
During the past 13 years, the highest FCF Margin % of Groupe Guillin was 11.81%. The lowest was 0.56%. And the median was 4.45%.
STU:ZUY's FCF Margin % is ranked worse than 51.66% of 391
companies
in the Packaging & Containers industry
Industry Median: 2.7
vs STU:ZUY: 2.42
Groupe Guillin FCF Margin % Related Terms
Groupe Guillin FCF Margin % Historical Data
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The historical data trend for Groupe Guillin's FCF 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.
For the Packaging & Containers subindustry, Groupe Guillin's FCF Margin %, along with its competitors' market caps and FCF 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.
Groupe Guillin FCF Margin % vs Packaging & Containers Industry
For the Packaging & Containers industry and Consumer Cyclical sector, Groupe Guillin's FCF Margin % distribution charts can be found below:
* The bar in red indicates where Groupe Guillin's FCF 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.
Groupe Guillin (STU:ZUY) has a FCF Margin % of 8.02% as of Dec. 2025. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Groupe Guillin and its competitors. This is 80% above median its historical median of 4.45. Over the past decade, Groupe Guillin's FCF Margin % has ranged from 0.56 to 11.81. According to the industry distribution chart, Groupe Guillin ranks #202 out of 391 companies in the Packaging & Containers industry, placing it in the top 51.7%.
Is Groupe Guillin's FCF Margin % too high?
Groupe Guillin's current FCF Margin % of 8.02% is 80% above median its 10-year median of 4.45. Over the past 10 years, this metric has ranged from a low of 0.56 to a high of 11.81. The Packaging & Containers industry median FCF Margin % is 2.70. Groupe Guillin's value of 8.02% is 197% above this industry median. Based on the distribution chart, Groupe Guillin ranks #202 out of 391 companies in the Packaging & Containers industry, which is below the industry midpoint. Overall, Groupe Guillin has a GF Score™ of 77/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Groupe Guillin's FCF Margin % compare to SW and PKG?
According to the Packaging & Containers industry distribution chart, Groupe Guillin ranks #202 out of 391 companies for FCF Margin %. This places Groupe Guillin in the lower half of its industry. The industry median FCF Margin % is 2.70. Groupe Guillin's value of 8.02% is 197% above this benchmark. Historically, Groupe Guillin's own FCF Margin % has ranged from 0.56 to 11.81 over the past decade. While the company's 10-year median is 4.45 vs. the industry median of 2.70, Groupe Guillin 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 FCF Margin % for a Packaging & Containers company?
The median FCF Margin % among Packaging & Containers companies is 2.70, based on 391 companies in the industry. Companies in the top quartile (top 25%) have a FCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, FCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Groupe Guillin's current FCF Margin % of 8.02% is 197% 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Groupe Guillin and its competitors. For the Packaging & Containers industry, the median FCF Margin % is 2.70 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Groupe Guillin's current FCF Margin % is 8.02%, which is 80% above median its own 10-year median of 4.45. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Groupe Guillin stock overvalued right now?
Based on GuruFocus' analysis, Groupe Guillin (STU:ZUY) is currently considered Modestly Undervalued. The stock's GF Value™ is €28.60, compared to a current price of €22.60 — trading 21% below its estimated fair value. The current FCF Margin % is 8.02%, which is 80% above median its 10-year median of 4.45 and 197% above the Packaging & Containers industry median of 2.70. Groupe Guillin's overall GF Score™ is 77/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For Groupe Guillin (STU:ZUY), the current FCF Margin % is 8.02% 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 Groupe Guillin (STU:ZUY) Overvalued in 2026?
Based on GuruFocus' analysis, Groupe Guillin stock appears to be undervalued.
The current stock price of €22.60 is trading 21% below its estimated GF Value™ of €28.60.
GuruFocus considers Groupe Guillin to be Modestly Undervalued.
Key valuation signals for STU:ZUY:
FCF Margin %: 8.02% (80% above median its 10-year median of 4.45)
GF Value™: €28.60 vs. price of €22.60 (21% below fair value)
Industry Position: 197% above the Packaging & Containers median (#202 of 391)
No single metric tells the full story. See the STU:ZUY stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Groupe Guillin SA is a European company. It is engaged in producing and selling of plastic packages. The company's product offering includes trays, catering containers, cake, and pastry containers and thermoforming sheets. The firm serves the catering industry, meat and food industry, and fruit and vegetable producers and packers.
77GF Score
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