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Serstech ABOSTO:SERT -2.60%36 Piotroski F-Score is 4 as of Aug. 17, 2026, which is at its 10-year median of 4.00. GuruFocus rates OSTO:SERT with a GF Score™ of 36/100 and a GF Value™ of kr0.40 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 1,562 Chemicals companies, Serstech AB ranks worse than 65.75% on this metric.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Serstech AB has an F-score of 4 indicating the company's financial situation is typical for a stable company.
The historical rank and industry rank for Serstech AB's Piotroski F-Score or its related term are showing as below:
OSTO:SERT'
s Piotroski F-Score Range Over the Past 10 Years
Min: 2 Med: 4 Max: 8
Current: 4
During the past 13 years, the highest Piotroski F-Score of Serstech AB was 8. The lowest was 2. And the median was 4.
Serstech AB (OSTO:SERT) 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.
Serstech AB Piotroski F-Score Related Terms
Serstech AB Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Serstech 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.
For the Chemicals subindustry, Serstech 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.
Serstech AB Piotroski F-Score vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, Serstech AB's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Serstech 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.
Serstech AB's current Net Income (TTM) was -28.96.
==> Negative ==> Score 0.
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.
Serstech AB's return on assets of this year was -0.39602877. Serstech AB's return on assets of last year was -0.38878777.
==> Last year is higher ==> Score 0.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Serstech AB's current ratio of this year was 1.28067155. Serstech AB's current ratio of last year was 5.34359701.
==> Last year's current ratio is higher ==> Score 0.
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.
Serstech AB's number of shares in issue this year was 254.319. Serstech AB's number of shares in issue last year was 254.319.
==> 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.
Serstech AB's gross margin of this year was 0.84365003. Serstech AB's gross margin of last year was 0.74680009.
==> 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
Serstech AB's asset turnover of this year was 0.41466783. Serstech AB's asset turnover of last year was 0.65166743.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
Piotroski F-Score
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Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Serstech AB has an F-score of 4 indicating the company's financial situation is typical for a stable company.
Serstech AB (OSTO:SERT) has a Piotroski F-Score of 4 as of Aug. 17, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Serstech AB and its competitors. This is near median its historical median of 4.00. Over the past decade, Serstech AB's Piotroski F-Score has ranged from 2.00 to 8.00. According to the industry distribution chart, Serstech AB ranks #1027 out of 1562 companies in the Chemicals industry, placing it in the top 65.7%.
Is Serstech AB's Piotroski F-Score too high?
Serstech AB's current Piotroski F-Score of 4 is near median its 10-year median of 4.00. Over the past 10 years, this metric has ranged from a low of 2.00 to a high of 8.00. The Chemicals industry median Piotroski F-Score is 5.00. Serstech AB's value of 4 is 20% below this industry median. Based on the distribution chart, Serstech AB ranks #1027 out of 1562 companies in the Chemicals industry, which is below the industry midpoint. Overall, Serstech AB has a GF Score™ of 36/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Serstech AB's Piotroski F-Score compare to DOW?
According to the Chemicals industry distribution chart, Serstech AB ranks #1027 out of 1562 companies for Piotroski F-Score. This places Serstech AB in the lower half of its industry. The industry median Piotroski F-Score is 5.00. Serstech AB's value of 4 is 20% below this benchmark. Historically, Serstech AB's own Piotroski F-Score has ranged from 2.00 to 8.00 over the past decade. While the company's 10-year median is 4.00 vs. the industry median of 5.00, Serstech AB has consistently been below 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 Chemicals company?
The median Piotroski F-Score among Chemicals companies is 5.00, based on 1,562 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. Serstech AB's current Piotroski F-Score of 4 is 20% below 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 Serstech AB and its competitors. For the Chemicals 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. Serstech AB's current Piotroski F-Score is 4, which is near median its own 10-year median of 4.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Serstech AB stock overvalued right now?
Based on GuruFocus' analysis, Serstech AB (OSTO:SERT) is currently considered Significantly Overvalued. The stock's GF Value™ is kr0.40, compared to a current price of kr0.52 — trading 31% above its estimated fair value. The current Piotroski F-Score is 4, which is near median its 10-year median of 4.00 and 20% below the Chemicals industry median of 5.00. Serstech AB's overall GF Score™ is 36/100 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 Serstech AB (OSTO:SERT), the current Piotroski F-Score is 4 as of Aug. 17, 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 Serstech AB (OSTO:SERT) Overvalued in 2026?
Based on GuruFocus' analysis, Serstech AB stock appears to be overvalued.
The current stock price of kr0.52 is trading 31% above its estimated GF Value™ of kr0.40.
GuruFocus considers Serstech AB to be Significantly Overvalued.
Key valuation signals for OSTO:SERT:
Piotroski F-Score: 4 (near median its 10-year median of 4.00)
GF Value™: kr0.40 vs. price of kr0.52 (31% above fair value)
Industry Position: 20% below the Chemicals median (#1027 of 1562)
No single metric tells the full story. See the OSTO:SERT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Serstech AB is engaged in chemical related products which help in the measurement and identification of chemicals. It offers Handheld Raman Spectrometer; Chemdash, Management and Reporting Software and Validated Data-Enriched and Complete Libraries. The company's solutions are used in the pharmaceutical production industry.
36GF Score
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