Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
BrainCool ABSTU:5YL 68 Return-on-Tangible-Equity is -36.59% as of Mar. 2026. GuruFocus rates STU:5YL with a GF Score™ of 68/100 and a GF Value™ of €0.09 (Possible Value Trap). The stock has 4 warning signs investors should review. Among 758 Medical Devices & Instruments companies, BrainCool AB ranks worse than 82.59% 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. BrainCool AB's annualized net income for the quarter that ended in Mar. 2026 was €-3.01 Mil. BrainCool AB's average shareholder tangible equity for the quarter that ended in Mar. 2026 was €8.23 Mil. Therefore, BrainCool AB's annualized Return-on-Tangible-Equity for the quarter that ended in Mar. 2026 was -36.59%.
The historical rank and industry rank for BrainCool AB's Return-on-Tangible-Equity or its related term are showing as below:
STU:5YL'
s Return-on-Tangible-Equity Range Over the Past 10 Years
Min: -382.04 Med: -182.26 Max: -46.12
Current: -58.34
During the past 13 years, BrainCool AB's highest Return-on-Tangible-Equity was -46.12%. The lowest was -382.04%. And the median was -182.26%.
STU:5YL's Return-on-Tangible-Equity is ranked worse than 82.59% of 758
companies
in the Medical Devices & Instruments industry
Industry Median: 4.08
vs STU:5YL: -58.34
BrainCool AB (STU:5YL) 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.
BrainCool AB Return-on-Tangible-Equity Related Terms
BrainCool AB Return-on-Tangible-Equity Historical Data
* Premium members only.
The historical data trend for BrainCool AB'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:5YL vs ABT, SYK, MDT: Return-on-Tangible-Equity Comparison
For the Medical Devices subindustry, BrainCool AB'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.
BrainCool AB Return-on-Tangible-Equity vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, BrainCool AB's Return-on-Tangible-Equity distribution charts can be found below:
* The bar in red indicates where BrainCool AB'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 four times the quarterly (Mar. 2026) net income data.
Return-on-Tangible-Equity is displayed in the 10-year financial page.
What does a Return-on-Tangible-Equity of -36.59% mean?
BrainCool AB (STU:5YL) has a Return-on-Tangible-Equity of -36.59% as of Mar. 2026. Return on tangible equity is the ratio of current-period net income to average two-period tangible equity. View historical data on BrainCool AB and its competitors. According to the industry distribution chart, BrainCool AB ranks #626 out of 758 companies in the Medical Devices & Instruments industry, placing it in the top 82.6%.
Is BrainCool AB's Return-on-Tangible-Equity too high?
BrainCool AB's current Return-on-Tangible-Equity is -36.59%. Based on the distribution chart, BrainCool AB ranks #626 out of 758 companies in the Medical Devices & Instruments industry, which is in the bottom quartile relative to peers. Overall, BrainCool AB has a GF Score™ of 68/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does BrainCool AB's Return-on-Tangible-Equity compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, BrainCool AB ranks #626 out of 758 companies for Return-on-Tangible-Equity. This places BrainCool AB in the lower half of its industry. The industry median Return-on-Tangible-Equity is 4.08. 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 Medical Devices & Instruments company?
The median Return-on-Tangible-Equity among Medical Devices & Instruments companies is 4.08, based on 758 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 BrainCool AB and its competitors. For the Medical Devices & Instruments industry, the median Return-on-Tangible-Equity is 4.08 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. BrainCool AB's current Return-on-Tangible-Equity is -36.59%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is BrainCool AB stock overvalued right now?
Based on GuruFocus' analysis, BrainCool AB (STU:5YL) is currently considered Possible Value Trap. The stock's GF Value™ is €0.09, compared to a current price of €0.06 — trading 32.2% below its estimated fair value. The current Return-on-Tangible-Equity is -36.59%. BrainCool AB's overall GF Score™ is 68/100 with 4 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 BrainCool AB (STU:5YL), the current Return-on-Tangible-Equity is -36.59% as of Mar. 2026. 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 BrainCool AB (STU:5YL) Overvalued in 2026?
Based on GuruFocus' analysis, BrainCool AB stock appears to be undervalued.
The current stock price of €0.06 is trading 32.2% below its estimated GF Value™ of €0.09.
GuruFocus considers BrainCool AB to be Possible Value Trap.
Key valuation signals for STU:5YL:
Return-on-Tangible-Equity: -36.59%
GF Value™: €0.09 vs. price of €0.06 (32.2% below fair value)
No single metric tells the full story. See the STU:5YL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
BrainCool AB is a medical device company engaged in developing, marketing, and selling medical cooling systems for diseases like stroke, oral mucositis, migraine, and sudden cardiac arrest.
68GF Score
Get the complete analysis for STU:5YL
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:5YL has been successfully added to your 
