SigmaRocLSE:SRC -1.20%61 Piotroski F-Score is 8 as of Jun. 27, 2026, which is 60% above its 10-year median of 5.00. GuruFocus rates LSE:SRC with a GF Score™ of 61/100 and a GF Value™ of £0.83 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 394 Building Materials companies, SigmaRoc ranks better than 97.21% 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
SigmaRoc 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 SigmaRoc's Piotroski F-Score or its related term are showing as below:
LSE:SRC'
s Piotroski F-Score Range Over the Past 10 Years
Min: 3 Med: 5 Max: 8
Current: 8
During the past 13 years, the highest Piotroski F-Score of SigmaRoc was 8. The lowest was 3. And the median was 5.
SigmaRoc (LSE:SRC) 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.
SigmaRoc Piotroski F-Score Related Terms
SigmaRoc Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for SigmaRoc'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.
LSE:SRC vs CRH, VMC, MLM: Piotroski F-Score Comparison
For the Building Materials subindustry, SigmaRoc'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.
SigmaRoc Piotroski F-Score vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, SigmaRoc's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where SigmaRoc'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.
SigmaRoc's current Net Income (TTM) was 80.
==> 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.
SigmaRoc's return on assets of this year was 0.03714857. SigmaRoc's return on assets of last year was 0.02290643.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
SigmaRoc's gearing of this year was 0.25827081. SigmaRoc's gearing of last year was 0.36463062.
==> 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
SigmaRoc's current ratio of this year was 1.16992848. SigmaRoc's current ratio of last year was 1.12391912.
==> 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.
SigmaRoc's number of shares in issue this year was 1182.311. SigmaRoc's number of shares in issue last year was 1196.59.
==> 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.
SigmaRoc's gross margin of this year was 0.25966385. SigmaRoc's gross margin of last year was 0.23747592.
==> 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
SigmaRoc's asset turnover of this year was 0.48185133. SigmaRoc's asset turnover of last year was 0.94803799.
==> 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
SigmaRoc has an F-score of 8. It is a good or high score, which usually indicates a very healthy situation.
SigmaRoc (LSE:SRC) has a Piotroski F-Score of 8 as of Jun. 27, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on SigmaRoc and its competitors. This is 60% above median its historical median of 5.00. Over the past decade, SigmaRoc's Piotroski F-Score has ranged from 3.00 to 8.00. According to the industry distribution chart, SigmaRoc ranks #11 out of 394 companies in the Building Materials industry, placing it in the top 2.8%.
Is SigmaRoc's Piotroski F-Score too high?
SigmaRoc's current Piotroski F-Score of 8 is 60% 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 8.00. The Building Materials industry median Piotroski F-Score is 5.00. SigmaRoc's value of 8 is 60% above this industry median. Based on the distribution chart, SigmaRoc ranks #11 out of 394 companies in the Building Materials industry, which is in the top quartile — a strong position relative to peers. Overall, SigmaRoc has a GF Score™ of 61/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does SigmaRoc's Piotroski F-Score compare to CRH and VMC?
According to the Building Materials industry distribution chart, SigmaRoc ranks #11 out of 394 companies for Piotroski F-Score. This places SigmaRoc in the top 3% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. SigmaRoc's value of 8 is 60% above this benchmark. Historically, SigmaRoc's own Piotroski F-Score has ranged from 3.00 to 8.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 5.00, SigmaRoc 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 Building Materials company?
The median Piotroski F-Score among Building Materials companies is 5.00, based on 394 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. SigmaRoc'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 SigmaRoc and its competitors. For the Building Materials 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. SigmaRoc's current Piotroski F-Score is 8, which is 60% 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 SigmaRoc stock overvalued right now?
Based on GuruFocus' analysis, SigmaRoc (LSE:SRC) is currently considered Significantly Overvalued. The stock's GF Value™ is £0.83, compared to a current price of £1.24 — trading 49.3% above its estimated fair value. The current Piotroski F-Score is 8, which is 60% above median its 10-year median of 5.00 and 60% above the Building Materials industry median of 5.00. SigmaRoc's overall GF Score™ is 61/100 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 SigmaRoc (LSE:SRC), the current Piotroski F-Score is 8 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 SigmaRoc (LSE:SRC) Overvalued in 2026?
Based on GuruFocus' analysis, SigmaRoc stock appears to be overvalued.
The current stock price of £1.24 is trading 49.3% above its estimated GF Value™ of £0.83.
GuruFocus considers SigmaRoc to be Significantly Overvalued.
Key valuation signals for LSE:SRC:
Piotroski F-Score: 8 (60% above median its 10-year median of 5.00)
GF Value™: £0.83 vs. price of £1.24 (49.3% above fair value)
Industry Position: 60% above the Building Materials median (#11 of 394)
No single metric tells the full story. See the LSE:SRC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
SigmaRoc PLC, along with its subsidiaries, is engaged in the production of lime and limestone, high-quality aggregates, and the supply of value-added industrial and construction materials. Its product offerings include bath stones, limbase quicklime, lime wash, biocal quicklime, tiles, unfinished stones, readymix concrete, asphalt, etc. The Group's operating segments are: UK & Ireland, Western Europe, Nordics, Central Europe, and Corporate. Maximum revenue is generated from the Central Europe segment.
61GF Score
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