SDM SESTU:75S -88.68%27 Piotroski F-Score is 4 as of Jun. 28, 2026, which is at its 10-year median of 4.00. GuruFocus rates STU:75S with a GF Score™ of 27/100. The stock has 5 warning signs investors should review. Among 1,063 Business Services companies, SDM SE ranks worse than 69.71% 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
SDM SE has an F-score of 3. It is a bad or low score, which usually implies poor business operation.
The historical rank and industry rank for SDM SE's Piotroski F-Score or its related term are showing as below:
STU:75S'
s Piotroski F-Score Range Over the Past 10 Years
Min: 3 Med: 4 Max: 6
Current: 4
During the past 5 years, the highest Piotroski F-Score of SDM SE was 6. The lowest was 3. And the median was 4.
SDM SE (STU:75S) 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.
SDM SE Piotroski F-Score Related Terms
SDM SE Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for SDM SE'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:75S vs ALLE, MSA, ADT: Piotroski F-Score Comparison
For the Security & Protection Services subindustry, SDM SE'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.
SDM SE Piotroski F-Score vs Business Services Industry
For the Business Services industry and Industrials sector, SDM SE's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where SDM SE'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.
SDM SE's current Net Income (TTM) was -1.38.
==> 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.
SDM SE's current ratio of this year was 4.69756839. SDM SE's current ratio of last year was 1.87906372.
==> 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.
SDM SE's number of shares in issue this year was 3.802. SDM SE's number of shares in issue last year was 0.
==> There is larger number of shares in issue this year. ==> Score 0.
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.
SDM SE's gross margin of this year was 0.87960231. SDM SE's gross margin of last year was 1.
==> Last year's gross margin is higher ==> Score 0.
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
SDM SE's asset turnover of this year was 2.43558238. SDM SE's asset turnover of last year was 0.01000364.
==> This year's asset turnover is higher. ==> Score 1.
Evaluation
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Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
SDM SE has an F-score of 3. It is a bad or low score, which usually implies poor business operation.
SDM SE (STU:75S) has a Piotroski F-Score of 4 as of Jun. 28, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on SDM SE and its competitors. This is near median its historical median of 4.00. Over the past decade, SDM SE's Piotroski F-Score has ranged from 3.00 to 6.00. According to the industry distribution chart, SDM SE ranks #741 out of 1063 companies in the Business Services industry, placing it in the top 69.7%.
Is SDM SE's Piotroski F-Score too high?
SDM SE'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 3.00 to a high of 6.00. The Business Services industry median Piotroski F-Score is 5.00. SDM SE's value of 4 is 20% below this industry median. Based on the distribution chart, SDM SE ranks #741 out of 1063 companies in the Business Services industry, which is below the industry midpoint. Overall, SDM SE has a GF Score™ of 27/100, reflecting its overall financial health beyond just this single metric.
How does SDM SE's Piotroski F-Score compare to ALLE and MSA?
According to the Business Services industry distribution chart, SDM SE ranks #741 out of 1063 companies for Piotroski F-Score. This places SDM SE in the lower half of its industry. The industry median Piotroski F-Score is 5.00. SDM SE's value of 4 is 20% below this benchmark. Historically, SDM SE's own Piotroski F-Score has ranged from 3.00 to 6.00 over the past decade. While the company's 10-year median is 4.00 vs. the industry median of 5.00, SDM SE 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 Business Services company?
The median Piotroski F-Score among Business Services companies is 5.00, based on 1,063 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. SDM SE'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 SDM SE and its competitors. For the Business Services 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. SDM SE'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 SDM SE stock overvalued right now?
SDM SE (STU:75S) has a current Piotroski F-Score of 4. The current Piotroski F-Score is 4, which is near median its 10-year median of 4.00 and 20% below the Business Services industry median of 5.00. SDM SE's overall GF Score™ is 27/100 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 SDM SE (STU:75S), the current Piotroski F-Score is 4 as of Jun. 28, 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.
SDM SE is a security service provider in southern and western Germany. The various services offered by the group include plant and property protection, emergency call center, valuables transport and courier services, event security, patrol and guard service, AI security technology, hospitality service, and special security services.
27GF Score
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