Sto SE KGaAHAM:STO3 -1.40%63 Piotroski F-Score is 7 as of Jun. 27, 2026, which is at its 10-year median of 7.00. GuruFocus rates HAM:STO3 with a GF Score™ of 63/100 and a GF Value™ of €136.22 (Significantly Undervalued). The stock has 3 warning signs investors should review. Among 1,735 Construction companies, Sto SE KGaA ranks better than 89.39% on this metric.
Good Sign:
Piotroski F-Score is 7, 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
Sto SE KGaA has an F-score of 7. It is a good or high score, which usually indicates a very healthy situation.
The historical rank and industry rank for Sto SE KGaA's Piotroski F-Score or its related term are showing as below:
HAM:STO3'
s Piotroski F-Score Range Over the Past 10 Years
Min: 5 Med: 7 Max: 8
Current: 7
During the past 13 years, the highest Piotroski F-Score of Sto SE KGaA was 8. The lowest was 5. And the median was 7.
Sto SE KGaA (HAM:STO3) 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.
Sto SE KGaA Piotroski F-Score Related Terms
Sto SE KGaA Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Sto SE KGaA'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.
HAM:STO3 vs TT, JCI, CARR: Piotroski F-Score Comparison
For the Building Products & Equipment subindustry, Sto SE KGaA'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.
Sto SE KGaA Piotroski F-Score vs Construction Industry
For the Construction industry and Industrials sector, Sto SE KGaA's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Sto SE KGaA'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.
Sto SE KGaA's current Net Income (TTM) was 39.
==> 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.
Sto SE KGaA's return on assets of this year was 0.03382494. Sto SE KGaA's return on assets of last year was 0.03229487.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Sto SE KGaA's gearing of this year was 0.0723338. Sto SE KGaA's gearing of last year was 0.06634368.
==> Last year is lower than this year ==> Score 0.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
Sto SE KGaA's current ratio of this year was 2.84974145. Sto SE KGaA's current ratio of last year was 2.69125409.
==> 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.
Sto SE KGaA's number of shares in issue this year was 3.888. Sto SE KGaA's number of shares in issue last year was 3.888.
==> 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.
Sto SE KGaA's gross margin of this year was 0.54592951. Sto SE KGaA's gross margin of last year was 0.54180986.
==> 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
Sto SE KGaA's asset turnover of this year was 1.37364124. Sto SE KGaA's asset turnover of last year was 1.38419795.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
Piotroski F-Score
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7
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Sto SE KGaA has an F-score of 7. It is a good or high score, which usually indicates a very healthy situation.
Sto SE KGaA (HAM:STO3) has a Piotroski F-Score of 7 as of Jun. 27, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Sto SE KGaA and its competitors. This is near median its historical median of 7.00. Over the past decade, Sto SE KGaA's Piotroski F-Score has ranged from 5.00 to 8.00. According to the industry distribution chart, Sto SE KGaA ranks #184 out of 1735 companies in the Construction industry, placing it in the top 10.6%.
Is Sto SE KGaA's Piotroski F-Score too high?
Sto SE KGaA's current Piotroski F-Score of 7 is near median its 10-year median of 7.00. Over the past 10 years, this metric has ranged from a low of 5.00 to a high of 8.00. The Construction industry median Piotroski F-Score is 5.00. Sto SE KGaA's value of 7 is 40% above this industry median. Based on the distribution chart, Sto SE KGaA ranks #184 out of 1735 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, Sto SE KGaA has a GF Score™ of 63/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sto SE KGaA's Piotroski F-Score compare to TT and JCI?
According to the Construction industry distribution chart, Sto SE KGaA ranks #184 out of 1735 companies for Piotroski F-Score. This places Sto SE KGaA in the top 11% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. Sto SE KGaA's value of 7 is 40% above this benchmark. Historically, Sto SE KGaA's own Piotroski F-Score has ranged from 5.00 to 8.00 over the past decade. While the company's 10-year median is 7.00 vs. the industry median of 5.00, Sto SE KGaA 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 Construction company?
The median Piotroski F-Score among Construction companies is 5.00, based on 1,735 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. Sto SE KGaA's current Piotroski F-Score of 7 is 40% 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 Sto SE KGaA and its competitors. For the Construction 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. Sto SE KGaA's current Piotroski F-Score is 7, which is near median its own 10-year median of 7.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sto SE KGaA stock overvalued right now?
Based on GuruFocus' analysis, Sto SE KGaA (HAM:STO3) is currently considered Significantly Undervalued. The stock's GF Value™ is €136.22, compared to a current price of €91.60 — trading 32.8% below its estimated fair value. The current Piotroski F-Score is 7, which is near median its 10-year median of 7.00 and 40% above the Construction industry median of 5.00. Sto SE KGaA's overall GF Score™ is 63/100 with 3 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 Sto SE KGaA (HAM:STO3), the current Piotroski F-Score is 7 as of Jun. 27, 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 Sto SE KGaA (HAM:STO3) Overvalued in 2026?
Based on GuruFocus' analysis, Sto SE KGaA stock appears to be undervalued.
The current stock price of €91.60 is trading 32.8% below its estimated GF Value™ of €136.22.
GuruFocus considers Sto SE KGaA to be Significantly Undervalued.
Key valuation signals for HAM:STO3:
Piotroski F-Score: 7 (near median its 10-year median of 7.00)
GF Value™: €136.22 vs. price of €91.60 (32.8% below fair value)
Industry Position: 40% above the Construction median (#184 of 1735)
No single metric tells the full story. See the HAM:STO3 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sto SE & Co KGaA is a manufacturer of products and systems for building coatings. The company operates in the geographical segments: Western Europe, Northern/Eastern Europe, and America/Asia/Pacific. It derives maximum revenue from Western Europe. The products of the company include facade systems & surface finishes, Acoustic systems, StoColor systems, Interior, Floor coatings, Concrete Restoration, and others.
63GF Score
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Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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