AddLife ABSTU:1AD1 -3.79%85 Piotroski F-Score is 8 as of Jul. 01, 2026, which is 33% above its 10-year median of 6.00. GuruFocus rates STU:1AD1 with a GF Score™ of 85/100 and a GF Value™ of €13.19. The stock has 5 warning signs investors should review. Among 806 Medical Devices & Instruments companies, AddLife AB ranks better than 98.76% on this metric.
Good Sign:
Piotroski F-Score is 8, indicates a very healthy situation.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
AddLife AB has an F-score of 8. It is a good or high score, which usually indicates a very healthy situation.
The historical rank and industry rank for AddLife AB's Piotroski F-Score or its related term are showing as below:
STU:1AD1'
s Piotroski F-Score Range Over the Past 10 Years
Min: 4 Med: 6 Max: 8
Current: 8
During the past 13 years, the highest Piotroski F-Score of AddLife AB was 8. The lowest was 4. And the median was 6.
AddLife AB (STU:1AD1) Piotroski F-Score Explanation
The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
AddLife AB Piotroski F-Score Related Terms
AddLife AB Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for AddLife AB's Piotroski F-Score 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:1AD1 vs ISRG, BDX, MDLN: Piotroski F-Score Comparison
For the Medical Instruments & Supplies subindustry, AddLife AB's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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.
AddLife AB Piotroski F-Score vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, AddLife AB's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where AddLife AB's Piotroski F-Score 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.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
AddLife AB's current Net Income (TTM) was 52.1.
==> Positive ==> Score 1.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
AddLife AB's return on assets of this year was 0.04626168. AddLife AB's return on assets of last year was 0.02348913.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
AddLife AB's current ratio of this year was 1.08061449. AddLife AB's current ratio of last year was 0.93933219.
==> This year's current ratio is higher. ==> Score 1.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
AddLife AB's number of shares in issue this year was 121.864. AddLife AB's number of shares in issue last year was 121.864.
==> There is smaller number of shares in issue this year, or the same. ==> Score 1.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
AddLife AB's gross margin of this year was 0.38287352. AddLife AB's gross margin of last year was 0.37584775.
==> This year's gross margin is higher. ==> Score 1.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
AddLife AB's asset turnover of this year was 0.84453444. AddLife AB's asset turnover of last year was 0.78876853.
==> This year's asset turnover is higher. ==> Score 1.
Evaluation
Piotroski F-Score
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Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
AddLife AB has an F-score of 8. It is a good or high score, which usually indicates a very healthy situation.
AddLife AB (STU:1AD1) has a Piotroski F-Score of 8 as of Jul. 01, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on AddLife AB and its competitors. This is 33% above median its historical median of 6.00. Over the past decade, AddLife AB's Piotroski F-Score has ranged from 4.00 to 8.00. According to the industry distribution chart, AddLife AB ranks #10 out of 806 companies in the Medical Devices & Instruments industry, placing it in the top 1.2%.
Is AddLife AB's Piotroski F-Score too high?
AddLife AB's current Piotroski F-Score of 8 is 33% above median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 4.00 to a high of 8.00. The Medical Devices & Instruments industry median Piotroski F-Score is 5.00. AddLife AB's value of 8 is 60% above this industry median. Based on the distribution chart, AddLife AB ranks #10 out of 806 companies in the Medical Devices & Instruments industry, which is in the top quartile — a strong position relative to peers. Overall, AddLife AB has a GF Score™ of 85/100, reflecting its overall financial health beyond just this single metric.
How does AddLife AB's Piotroski F-Score compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, AddLife AB ranks #10 out of 806 companies for Piotroski F-Score. This places AddLife AB in the top 1% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. AddLife AB's value of 8 is 60% above this benchmark. Historically, AddLife AB's own Piotroski F-Score has ranged from 4.00 to 8.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 5.00, AddLife AB 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 Piotroski F-Score for a Medical Devices & Instruments company?
The median Piotroski F-Score among Medical Devices & Instruments companies is 5.00, based on 806 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. AddLife AB's current Piotroski F-Score of 8 is 60% 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on AddLife AB and its competitors. For the Medical Devices & Instruments industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. AddLife AB's current Piotroski F-Score is 8, which is 33% above median its own 10-year median of 6.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is AddLife AB stock overvalued right now?
AddLife AB (STU:1AD1) has a current Piotroski F-Score of 8. The stock's GF Value™ is €13.19, compared to a current price of €14.73 — trading 11.7% above its estimated fair value. The current Piotroski F-Score is 8, which is 33% above median its 10-year median of 6.00 and 60% above the Medical Devices & Instruments industry median of 5.00. AddLife AB's overall GF Score™ is 85/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For AddLife AB (STU:1AD1), the current Piotroski F-Score is 8 as of Jul. 01, 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 AddLife AB (STU:1AD1) Overvalued in 2026?
Based on GuruFocus' analysis, AddLife AB stock appears to be overvalued.
The current stock price of €14.73 is trading 11.7% above its estimated GF Value™ of €13.19.
Key valuation signals for STU:1AD1:
Piotroski F-Score: 8 (33% above median its 10-year median of 6.00)
GF Value™: €13.19 vs. price of €14.73 (11.7% above fair value)
Industry Position: 60% above the Medical Devices & Instruments median (#10 of 806)
No single metric tells the full story. See the STU:1AD1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
AddLife AB is engaged in the business of providing products, services, and advisory services. The company operates in two segments: Labtech and Medtech. The Labtech segment provides analytical instruments, equipment, microscopes, consumables, and reagents, as well as software support and technical service to laboratories in medicine, research, academia and the food and pharmaceutical industries. The Medtech segment includes a range that spans from basic consumables to instruments for surgical procedures, welfare technology, and assistive devices for the elderly and disabled. The majority of revenue is derived from the Medtech segment.
85GF Score
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