SigmaRocLSE:SRC -1.20%61 OCF Margin % is 22.93% as of Dec. 2025, which is 89% above its 10-year median of 12.12. 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 403 Building Materials companies, SigmaRoc ranks better than 77.92% on this metric.
The historical rank and industry rank for SigmaRoc's OCF Margin % or its related term are showing as below:
LSE:SRC'
s OCF Margin % Range Over the Past 10 Years
Min: -822.22 Med: 12.12 Max: 22.92
Current: 19.86
During the past 13 years, the highest OCF Margin % of SigmaRoc was 22.92%. The lowest was -822.22%. And the median was 12.12%.
LSE:SRC's OCF Margin % is ranked better than 77.92% of 403
companies
in the Building Materials industry
Industry Median: 10.62
vs LSE:SRC: 19.86
SigmaRoc OCF Margin % Related Terms
SigmaRoc OCF Margin % Historical Data
* Premium members only.
The historical data trend for SigmaRoc's OCF Margin % 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 Building Materials subindustry, SigmaRoc's OCF Margin %, along with its competitors' market caps and OCF Margin % 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 OCF Margin % vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, SigmaRoc's OCF Margin % distribution charts can be found below:
* The bar in red indicates where SigmaRoc's OCF Margin % 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.
SigmaRoc (LSE:SRC) has a OCF Margin % of 22.93% as of Dec. 2025. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on SigmaRoc and its competitors. This is 89% above median its historical median of 12.12. According to the industry distribution chart, SigmaRoc ranks #89 out of 403 companies in the Building Materials industry, placing it in the top 22.1%.
Is SigmaRoc's OCF Margin % too high?
SigmaRoc's current OCF Margin % of 22.93% is 89% above median its 10-year median of 12.12. The Building Materials industry median OCF Margin % is 10.62. SigmaRoc's value of 22.93% is 115.9% above this industry median. Based on the distribution chart, SigmaRoc ranks #89 out of 403 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 OCF Margin % compare to CRH and VMC?
According to the Building Materials industry distribution chart, SigmaRoc ranks #89 out of 403 companies for OCF Margin %. This places SigmaRoc in the top 22% of its industry — outperforming the majority of peers. The industry median OCF Margin % is 10.62. SigmaRoc's value of 22.93% is 115.9% above this benchmark. While the company's 10-year median is 12.12 vs. the industry median of 10.62, 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 OCF Margin % for a Building Materials company?
The median OCF Margin % among Building Materials companies is 10.62, based on 403 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. SigmaRoc's current OCF Margin % of 22.93% is 115.9% 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 OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on SigmaRoc and its competitors. For the Building Materials industry, the median OCF Margin % is 10.62 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SigmaRoc's current OCF Margin % is 22.93%, which is 89% above median its own 10-year median of 12.12. 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 OCF Margin % is 22.93%, which is 89% above median its 10-year median of 12.12 and 115.9% above the Building Materials industry median of 10.62. 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 OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For SigmaRoc (LSE:SRC), the current OCF Margin % is 22.93% as of Dec. 2025. 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:
OCF Margin %: 22.93% (89% above median its 10-year median of 12.12)
GF Value™: £0.83 vs. price of £1.24 (49.3% above fair value)
Industry Position: 115.9% above the Building Materials median (#89 of 403)
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
Get the complete analysis for LSE:SRC
OCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
LSE:SRC has been successfully added to your 
