plenum AGSTU:PLEK +12.31%49 Return-on-Tangible-Equity is -188.81% as of Dec. 2025. GuruFocus rates STU:PLEK with a GF Score™ of 49/100 and a GF Value™ of €5.95 (Possible Value Trap). The stock has 3 warning signs investors should review. Among 1,009 Business Services companies, plenum AG ranks worse than 98.32% on this metric.
Return-on-Tangible-Equity is calculated as Net Income divided by its average total shareholder tangible equity. Total shareholder tangible equity equals to Total Stockholders Equity minus Intangible Assets. plenum AG's annualized net income for the quarter that ended in Dec. 2025 was €-1.77 Mil. plenum AG's average shareholder tangible equity for the quarter that ended in Dec. 2025 was €0.94 Mil. Therefore, plenum AG's annualized Return-on-Tangible-Equity for the quarter that ended in Dec. 2025 was -188.81%.
The historical rank and industry rank for plenum AG's Return-on-Tangible-Equity or its related term are showing as below:
STU:PLEK'
s Return-on-Tangible-Equity Range Over the Past 10 Years
Min: -162.77 Med: 41.65 Max: 167.84
Current: -145.55
During the past 13 years, plenum AG's highest Return-on-Tangible-Equity was 167.84%. The lowest was -162.77%. And the median was 41.65%.
STU:PLEK's Return-on-Tangible-Equity is ranked worse than 98.32% of 1009
companies
in the Business Services industry
Industry Median: 10.56
vs STU:PLEK: -145.55
plenum AG (STU:PLEK) Return-on-Tangible-Equity Explanation
Return-on-Tangible-Equity measures the rate of return on the ownership interest (shareholder's tangible equity) of the common stock owners. It measures a firm's efficiency at generating profits from every unit of shareholders' tangible equity (shareholders equity minus intangibles). Return-on-Tangible-Equity shows how well a company uses investment funds to generate earnings growth. Return-on-Tangible-Equitys between 15% and 20% are considered desirable.
Be Aware
Net Income is used.
Because a company can increase its Return-on-Tangible-Equity by having more financial leverage, it is important to watch the leverage ratio when investing in high Return-on-Tangible-Equity companies. Like Return-on-Tangible-Asset, Return-on-Tangible-Equity 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 Return-on-Tangible-Equitys can be extremely high.
plenum AG Return-on-Tangible-Equity Related Terms
plenum AG Return-on-Tangible-Equity Historical Data
* Premium members only.
The historical data trend for plenum AG's Return-on-Tangible-Equity 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:PLEK vs VRSK, EFX, BAH: Return-on-Tangible-Equity Comparison
For the Consulting Services subindustry, plenum AG's Return-on-Tangible-Equity, along with its competitors' market caps and Return-on-Tangible-Equity 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.
plenum AG Return-on-Tangible-Equity vs Business Services Industry
For the Business Services industry and Industrials sector, plenum AG's Return-on-Tangible-Equity distribution charts can be found below:
* The bar in red indicates where plenum AG's Return-on-Tangible-Equity 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 Return-on-Tangible-Equity, the net income of the last fiscal year and the average total shareholder tangible 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.
Return-on-Tangible-Equity is displayed in the 10-year financial page.
What does a Return-on-Tangible-Equity of -188.81% mean?
plenum AG (STU:PLEK) has a Return-on-Tangible-Equity of -188.81% as of Dec. 2025. Return on tangible equity is the ratio of current-period net income to average two-period tangible equity. View historical data on plenum AG and its competitors. According to the industry distribution chart, plenum AG ranks #992 out of 1009 companies in the Business Services industry, placing it in the top 98.3%.
Is plenum AG's Return-on-Tangible-Equity too high?
plenum AG's current Return-on-Tangible-Equity is -188.81%. Based on the distribution chart, plenum AG ranks #992 out of 1009 companies in the Business Services industry, which is in the bottom quartile relative to peers. Overall, plenum AG has a GF Score™ of 49/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does plenum AG's Return-on-Tangible-Equity compare to VRSK and EFX?
According to the Business Services industry distribution chart, plenum AG ranks #992 out of 1009 companies for Return-on-Tangible-Equity. This places plenum AG in the lower half of its industry. The industry median Return-on-Tangible-Equity is 10.56. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Return-on-Tangible-Equity for a Business Services company?
The median Return-on-Tangible-Equity among Business Services companies is 10.56, based on 1,009 companies in the industry. Companies in the top quartile (top 25%) have a Return-on-Tangible-Equity significantly above this median, while those in the bottom quartile fall well below. However, Return-on-Tangible-Equity should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Return-on-Tangible-Equity mean?
A high Return-on-Tangible-Equity can signal that a stock is expensive relative to its fundamentals. Return on tangible equity is the ratio of current-period net income to average two-period tangible equity. View historical data on plenum AG and its competitors. For the Business Services industry, the median Return-on-Tangible-Equity is 10.56 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. plenum AG's current Return-on-Tangible-Equity is -188.81%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is plenum AG stock overvalued right now?
Based on GuruFocus' analysis, plenum AG (STU:PLEK) is currently considered Possible Value Trap. The stock's GF Value™ is €5.95, compared to a current price of €2.92 — trading 50.9% below its estimated fair value. The current Return-on-Tangible-Equity is -188.81%. plenum AG's overall GF Score™ is 49/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Return-on-Tangible-Equity calculated?
Return-on-Tangible-Equity is calculated from a company's financial statements. For plenum AG (STU:PLEK), the current Return-on-Tangible-Equity is -188.81% 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 plenum AG (STU:PLEK) Overvalued in 2026?
Based on GuruFocus' analysis, plenum AG stock appears to be undervalued.
The current stock price of €2.92 is trading 50.9% below its estimated GF Value™ of €5.95.
GuruFocus considers plenum AG to be Possible Value Trap.
Key valuation signals for STU:PLEK:
Return-on-Tangible-Equity: -188.81%
GF Value™: €5.95 vs. price of €2.92 (50.9% below fair value)
No single metric tells the full story. See the STU:PLEK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
plenum AG is a German company which offers consulting services to financial companies, telecom, utilities, and logistics firms. The firm offers marketing, process optimization, and IT consulting services.
49GF Score
Get the complete analysis for STU:PLEK
Return-on-Tangible-Equity is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
STU:PLEK has been successfully added to your 
