Groupe GuillinSTU:ZUY +3.15%77 ROE % is 8.20% as of Dec. 2025, which is 34% below its 10-year median of 12.36. GuruFocus rates STU:ZUY with a GF Score™ of 77/100 and a GF Value™ of €28.31 (Modestly Undervalued). The stock has 7 warning signs investors should review. Among 389 Packaging & Containers companies, Groupe Guillin ranks better than 60.67% on this metric.
ROE % is calculated as Net Income divided by its average Total Stockholders Equity over a certain period of time. Groupe Guillin's annualized net income for the quarter that ended in Dec. 2025 was €53.0 Mil. Groupe Guillin's average Total Stockholders Equity over the quarter that ended in Dec. 2025 was €646.2 Mil. Therefore, Groupe Guillin's annualized ROE % for the quarter that ended in Dec. 2025 was 8.20%.
The historical rank and industry rank for Groupe Guillin's ROE % or its related term are showing as below:
STU:ZUY'
s ROE % Range Over the Past 10 Years
Min: 7.48 Med: 12.36 Max: 18.46
Current: 7.53
During the past 13 years, Groupe Guillin's highest ROE % was 18.46%. The lowest was 7.48%. And the median was 12.36%.
STU:ZUY's ROE % is ranked better than 60.67% of 389
companies
in the Packaging & Containers industry
Industry Median: 5.37
vs STU:ZUY: 7.53
Groupe Guillin (STU:ZUY) ROE % Explanation
ROE % measures the rate of return on the ownership interest (shareholder's equity) of the common stock owners. It measures a firm's efficiency at generating profits from every unit of shareholders' equity (also known as net assets or assets minus liabilities). ROE % shows how well a company uses investment funds to generate earnings growth. ROE %s between 15% and 20% are considered desirable.
The factors that affect a company's ROE % can be illustrated with the three-step DuPont Analysis:
Note:
The net income data used here is two times the semi-annual (Dec. 2025) net income data. The Revenue data used here is two times the semi-annual (Dec. 2025) revenue data. The same rule applies to Pre-Tax Income and Operating Income.
* In the five-step DuPont Analysis, Operating Income is only available for non-financial companies. Thus, for Insurance companies, we use EBIT as a substitution of Operating Income. For Banks, both Operating Income and EBIT is unavailable. Thus we combined Interest Burden and Operating Margin % into Pretax Margin %, and the DuPont Analysis is divided into four components instead.
* 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.
Be Aware
Net Income is used.
Because a company can increase its ROE % by having more financial leverage, it is important to watch the equity multiplier when investing in high ROE % companies. Like ROA %, ROE % is calculated with only 12 months data. Fluctuations in company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
Asset light businesses require very few assets to generate very high earnings. Their ROE %s can be extremely high.
Groupe Guillin ROE % Related Terms
Groupe Guillin ROE % Historical Data
* Premium members only.
The historical data trend for Groupe Guillin's ROE % 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 ROE %, along with its competitors' market caps and ROE % 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 ROE % vs Packaging & Containers Industry
For the Packaging & Containers industry and Consumer Cyclical sector, Groupe Guillin's ROE % distribution charts can be found below:
* The bar in red indicates where Groupe Guillin's ROE % 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.
In the calculation of annual ROE %, the net income of the last fiscal year and the average total shareholder equity over the fiscal year are used. In calculating the quarterly data,
the net income data used here is two times the semi-annual (Dec. 2025) net income data.
ROE % is displayed in the 30-year financial page.
Groupe Guillin (STU:ZUY) has a ROE % of 8.20% as of Dec. 2025. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Groupe Guillin and its competitors. This is 34% below median its historical median of 12.36. Over the past decade, Groupe Guillin's ROE % has ranged from 7.48 to 18.46. According to the industry distribution chart, Groupe Guillin ranks #153 out of 389 companies in the Packaging & Containers industry, placing it in the top 39.3%.
Is Groupe Guillin's ROE % too high?
Groupe Guillin's current ROE % of 8.20% is 34% below median its 10-year median of 12.36. Over the past 10 years, this metric has ranged from a low of 7.48 to a high of 18.46. The Packaging & Containers industry median ROE % is 5.37. Groupe Guillin's value of 8.20% is 52.7% above this industry median. Based on the distribution chart, Groupe Guillin ranks #153 out of 389 companies in the Packaging & Containers industry, which is above 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 ROE % compare to SW and PKG?
According to the Packaging & Containers industry distribution chart, Groupe Guillin ranks #153 out of 389 companies for ROE %. This puts Groupe Guillin in the upper half of its industry. The industry median ROE % is 5.37. Groupe Guillin's value of 8.20% is 52.7% above this benchmark. Historically, Groupe Guillin's own ROE % has ranged from 7.48 to 18.46 over the past decade. While the company's 10-year median is 12.36 vs. the industry median of 5.37, 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 ROE % for a Packaging & Containers company?
The median ROE % among Packaging & Containers companies is 5.37, based on 389 companies in the industry. Companies in the top quartile (top 25%) have a ROE % significantly above this median, while those in the bottom quartile fall well below. However, ROE % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Groupe Guillin's current ROE % of 8.20% is 52.7% 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 ROE % mean?
A high ROE % can signal that a stock is expensive relative to its fundamentals. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Groupe Guillin and its competitors. For the Packaging & Containers industry, the median ROE % is 5.37 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Groupe Guillin's current ROE % is 8.20%, which is 34% below median its own 10-year median of 12.36. 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 €28.31, compared to a current price of €22.90 — trading 19.1% below its estimated fair value. The current ROE % is 8.20%, which is 34% below median its 10-year median of 12.36 and 52.7% above the Packaging & Containers industry median of 5.37. Groupe Guillin's overall GF Score™ is 77/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % calculated?
ROE % is calculated from a company's financial statements. For Groupe Guillin (STU:ZUY), the current ROE % is 8.20% 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 €22.90 is trading 19.1% below its estimated GF Value™ of €28.31.
GuruFocus considers Groupe Guillin to be Modestly Undervalued.
Key valuation signals for STU:ZUY:
ROE %: 8.20% (34% below median its 10-year median of 12.36)
GF Value™: €28.31 vs. price of €22.90 (19.1% below fair value)
Industry Position: 52.7% above the Packaging & Containers median (#153 of 389)
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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