STSGF (STS Group AG) Piotroski F-Score: 7 (As of Jun. 26, 2026) — 40% Above Median


STSGF STS Group AG STSGF
56 GF Score
Price $3.00
GF Value $9.17
Valuation Possible Value Trap
! 4 Warning Signs
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What is STS Group AG Piotroski F-Score?

STS Group AG STSGF 56 Piotroski F-Score is 7 as of Jun. 26, 2026, which is 40% above its 10-year median of 5.00. GuruFocus rates STSGF with a GF Score™ of 56/100 and a GF Value™ of $9.17 (Possible Value Trap). The stock has 4 warning signs investors should review. Among 1,286 Vehicles & Parts companies, STS Group AG ranks better than 89.11% 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

STS Group AG has an F-score of 6 indicating the company's financial situation is typical for a stable company.

The historical rank and industry rank for STS Group AG's Piotroski F-Score or its related term are showing as below:

STSGF' s Piotroski F-Score Range Over the Past 10 Years
Min: 3   Med: 5   Max: 7
Current: 7

During the past 12 years, the highest Piotroski F-Score of STS Group AG was 7. The lowest was 3. And the median was 5.

STS Group AG  (OTCPK:STSGF) 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.

In 2000, he wrote a research paper called "Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers" (pdf).

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.


STS Group AG Piotroski F-Score Related Terms


STS Group AG Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for STS Group AG'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.

STS Group AG Piotroski F-Score Chart

STS Group AG Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Piotroski F-Score
Get a 7-Day Free Trial Premium Member Only Premium Member Only 7.00 5.00 5.00 5.00 7.00

STS Group AG Semi-Annual Data
Dec15 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Piotroski F-Score Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 5.00 0.00 5.00 0.00 7.00

STSGF vs ORLY, AZO: Piotroski F-Score Comparison

For the Auto Parts subindustry, STS Group AG'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.


STS Group AG Piotroski F-Score vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, STS Group AG's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where STS Group AG's Piotroski F-Score falls into.


STSGF
56GF Score
STS Group AG STSGF
Piotroski F-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

How is the Piotroski F-Score calculated?

* 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.

This Year (Dec25) TTM:Last Year (Dec24) TTM:
Net Income was $-0.6 Mil.
Cash Flow from Operations was $48.6 Mil.
Revenue was $342.0 Mil.
Gross Profit was $166.2 Mil.
Average Total Assets from the begining of this year (Dec24)
to the end of this year (Dec25) was (241.675 + 265.222) / 2 = $253.4485 Mil.
Total Assets at the begining of this year (Dec24) was $241.7 Mil.
Long-Term Debt & Capital Lease Obligation was $37.0 Mil.
Total Current Assets was $140.0 Mil.
Total Current Liabilities was $160.2 Mil.
Net Income was $-0.6 Mil.

Revenue was $325.8 Mil.
Gross Profit was $126.5 Mil.
Average Total Assets from the begining of last year (Dec23)
to the end of last year (Dec24) was (290.622 + 241.675) / 2 = $266.1485 Mil.
Total Assets at the begining of last year (Dec23) was $290.6 Mil.
Long-Term Debt & Capital Lease Obligation was $50.3 Mil.
Total Current Assets was $120.0 Mil.
Total Current Liabilities was $129.0 Mil.

*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.

STS Group AG's current Net Income (TTM) was -0.6. ==> 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.

Score 1 if positive, 0 if negative.

STS Group AG's current Cash Flow from Operations (TTM) was 48.6. ==> Positive ==> Score 1.

Question 3. Change in Return on Assets

Compare this year's return on assets (1) to last year's return on assets.

Score 1 if it's higher, 0 if it's lower.

ROA (This Year)=Net Income/Total Assets (Dec24)
=-0.585/241.675
=-0.00242061

ROA (Last Year)=Net Income/Total Assets (Dec23)
=-0.628/290.622
=-0.00216088

STS Group AG's return on assets of this year was -0.00242061. STS Group AG's return on assets of last year was -0.00216088. ==> Last year is higher ==> Score 0.

Question 4. Quality of Earnings (Accrual)

Compare Cash flow return on assets (2) to return on assets (1)

Score 1 if CFROA > ROA, 0 if CFROA <= ROA.

STS Group AG's current Net Income (TTM) was -0.6. STS Group AG's current Cash Flow from Operations (TTM) was 48.6. ==> 48.6 > -0.6 ==> CFROA > ROA ==> Score 1.

Funding

Question 5. Change in Gearing or Leverage

Compare this year's gearing (long-term debt divided by average total assets) to last year's gearing.

Score 0 if this year's gearing is higher, 1 otherwise.

Gearing (This Year: Dec25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec24 to Dec25
=37.002/253.4485
=0.14599416

Gearing (Last Year: Dec24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec23 to Dec24
=50.262/266.1485
=0.18884946

STS Group AG's gearing of this year was 0.14599416. STS Group AG's gearing of last year was 0.18884946. ==> This year is lower or equal to last year. ==> Score 1.

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

Current Ratio (This Year: Dec25)=Total Current Assets/Total Current Liabilities
=140.047/160.187
=0.87427194

Current Ratio (Last Year: Dec24)=Total Current Assets/Total Current Liabilities
=120/129.005
=0.9301965

STS Group AG's current ratio of this year was 0.87427194. STS Group AG's current ratio of last year was 0.9301965. ==> 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.

STS Group AG's number of shares in issue this year was 6.45. STS Group AG's number of shares in issue last year was 6.45. ==> 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.

Gross Margin (This Year: TTM)=Gross Profit/Revenue
=166.159/342.037
=0.48579247

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=126.492/325.759
=0.38829933

STS Group AG's gross margin of this year was 0.48579247. STS Group AG's gross margin of last year was 0.38829933. ==> 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

Asset Turnover (This Year)=Revenue/Total Assets at the Beginning of This Year (Dec24)
=342.037/241.675
=1.41527671

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Dec23)
=325.759/290.622
=1.12090275

STS Group AG's asset turnover of this year was 1.41527671. STS Group AG's asset turnover of last year was 1.12090275. ==> This year's asset turnover is higher. ==> Score 1.

Evaluation

Piotroski F-Score= Que. 1+ Que. 2+ Que. 3+Que. 4+Que. 5+Que. 6+Que. 7+Que. 8+Que. 9
=0+1+0+1+1+0+1+1+1
=6

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

STS Group AG has an F-score of 6 indicating the company's financial situation is typical for a stable company.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 7 mean?
STS Group AG (STSGF) has a Piotroski F-Score of 7 as of Jun. 26, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on STS Group AG and its competitors. This is 40% above median its historical median of 5.00. Over the past decade, STS Group AG's Piotroski F-Score has ranged from 3.00 to 7.00. According to the industry distribution chart, STS Group AG ranks #140 out of 1286 companies in the Vehicles & Parts industry, placing it in the top 10.9%.
Is STS Group AG's Piotroski F-Score too high?
STS Group AG's current Piotroski F-Score of 7 is 40% above median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 7.00. The Vehicles & Parts industry median Piotroski F-Score is 5.00. STS Group AG's value of 7 is 40% above this industry median. Based on the distribution chart, STS Group AG ranks #140 out of 1286 companies in the Vehicles & Parts industry, which is in the top quartile — a strong position relative to peers. Overall, STS Group AG has a GF Score™ of 56/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does STS Group AG's Piotroski F-Score compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, STS Group AG ranks #140 out of 1286 companies for Piotroski F-Score. This places STS Group AG in the top 11% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. STS Group AG's value of 7 is 40% above this benchmark. Historically, STS Group AG's own Piotroski F-Score has ranged from 3.00 to 7.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 5.00, STS Group AG 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 Vehicles & Parts company?
The median Piotroski F-Score among Vehicles & Parts companies is 5.00, based on 1,286 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. STS Group AG'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 STS Group AG and its competitors. For the Vehicles & Parts 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. STS Group AG's current Piotroski F-Score is 7, which is 40% above median its own 10-year median of 5.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is STS Group AG stock overvalued right now?
Based on GuruFocus' analysis, STS Group AG (STSGF) is currently considered Possible Value Trap. The stock's GF Value™ is $9.17, compared to a current price of $3.00 — trading 67.3% below its estimated fair value. The current Piotroski F-Score is 7, which is 40% above median its 10-year median of 5.00 and 40% above the Vehicles & Parts industry median of 5.00. STS Group AG's overall GF Score™ is 56/100 with 4 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 STS Group AG (STSGF), the current Piotroski F-Score is 7 as of Jun. 26, 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 STS Group AG (STSGF) Overvalued in 2026?

Based on GuruFocus' analysis, STS Group AG stock appears to be undervalued. The current stock price of $3.00 is trading 67.3% below its estimated GF Value™ of $9.17. GuruFocus considers STS Group AG to be Possible Value Trap.

Key valuation signals for STSGF:

  • Piotroski F-Score: 7 (40% above median its 10-year median of 5.00)
  • GF Value™: $9.17 vs. price of $3.00 (67.3% below fair value)
  • GF Score™: 56/100 with 4 warning signs
  • Industry Position: 40% above the Vehicles & Parts median (#140 of 1286)

No single metric tells the full story. See the STSGF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


STS Group AG Business Description

Other Exchanges SF3:Germany
Address Kabeler Strasse 4, Hagen, NW, DEU, 58099
STS Group AG is a systems supplier to the automotive industry globally. It produces and develops plastic injection moulded parts and components made from composite materials (Sheet Moulding Compound SMC), such as rigid and flexible vehicle and aerodynamic trim, complete interior systems, as well as lightweight and battery components for electric vehicles. STS's customer portfolio includes various international manufacturers of commercial vehicles, passenger cars, and electric vehicles. The Group's operating business segments are: China, Materials, and Plastics. Maximum revenue is generated from the Plastics segment, which manufactures exterior body parts and interior modules for lorries, commercial vehicles and passenger cars. Geographically, the Group derives maximum revenue from France.
56GF Score

Get the complete analysis for STSGF

Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$3.00
Price
$9.17
GF Value