SigmaRocLSE:SRC +1.77%61 Net Margin % is 10.57% as of Dec. 2025, which is 326% above its 10-year median of 2.48. 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 407 Building Materials companies, SigmaRoc ranks better than 65.36% on this metric.
Net margin is calculated as Net Income divided by its Revenue. SigmaRoc's Net Income for the
six
months ended in Dec. 2025 was £56 Mil. SigmaRoc's Revenue for the
six
months ended in Dec. 2025 was £526 Mil. Therefore, SigmaRoc's net margin for the quarter that ended in Dec. 2025 was 10.57%.
The historical rank and industry rank for SigmaRoc's Net Margin % or its related term are showing as below:
LSE:SRC'
s Net Margin % Range Over the Past 10 Years
Min: -6677.78 Med: 2.48 Max: 8.78
Current: 7.71
LSE:SRC's Net Margin % is ranked better than 65.36% of 407
companies
in the Building Materials industry
Industry Median: 4.52
vs LSE:SRC: 7.71
SigmaRoc (LSE:SRC) Net Margin % Explanation
Although Net Income and Earnings-per-Share (EPS) are the most widely used parameter in measuring a company's profitability and valuation, it is the least reliable. The reason is that reported earnings can be manipulated easily by adjusting any numbers such as Depreciation, Depletion and Amotorization and non-recurring items.
But the long term trend of the net margin is a good indicator of the competitiveness and health of the business.
SigmaRoc Net Margin % Related Terms
SigmaRoc Net Margin % Historical Data
* Premium members only.
The historical data trend for SigmaRoc's Net 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 Net Margin %, along with its competitors' market caps and Net 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 Net Margin % vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, SigmaRoc's Net Margin % distribution charts can be found below:
* The bar in red indicates where SigmaRoc's Net 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 Net Margin % of 10.57% as of Dec. 2025. Net margin is the ratio of total net income to net sales. View historical data on SigmaRoc and its competitors. This is 326% above median its historical median of 2.48. According to the industry distribution chart, SigmaRoc ranks #141 out of 407 companies in the Building Materials industry, placing it in the top 34.6%.
Is SigmaRoc's Net Margin % too high?
SigmaRoc's current Net Margin % of 10.57% is 326% above median its 10-year median of 2.48. The Building Materials industry median Net Margin % is 4.52. SigmaRoc's value of 10.57% is 133.8% above this industry median. Based on the distribution chart, SigmaRoc ranks #141 out of 407 companies in the Building Materials industry, which is above the industry midpoint. 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 Net Margin % compare to CRH and VMC?
According to the Building Materials industry distribution chart, SigmaRoc ranks #141 out of 407 companies for Net Margin %. This puts SigmaRoc in the upper half of its industry. The industry median Net Margin % is 4.52. SigmaRoc's value of 10.57% is 133.8% above this benchmark. While the company's 10-year median is 2.48 vs. the industry median of 4.52, 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 Net Margin % for a Building Materials company?
The median Net Margin % among Building Materials companies is 4.52, based on 407 companies in the industry. Companies in the top quartile (top 25%) have a Net Margin % significantly above this median, while those in the bottom quartile fall well below. However, Net Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. SigmaRoc's current Net Margin % of 10.57% is 133.8% 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 Net Margin % mean?
A high Net Margin % can signal that a stock is expensive relative to its fundamentals. Net margin is the ratio of total net income to net sales. View historical data on SigmaRoc and its competitors. For the Building Materials industry, the median Net Margin % is 4.52 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SigmaRoc's current Net Margin % is 10.57%, which is 326% above median its own 10-year median of 2.48. 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 £1.21 — trading 45.7% above its estimated fair value. The current Net Margin % is 10.57%, which is 326% above median its 10-year median of 2.48 and 133.8% above the Building Materials industry median of 4.52. 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 Net Margin % calculated?
Net Margin % is calculated from a company's financial statements. For SigmaRoc (LSE:SRC), the current Net Margin % is 10.57% 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 £1.21 is trading 45.7% above its estimated GF Value™ of £0.83.
GuruFocus considers SigmaRoc to be Significantly Overvalued.
Key valuation signals for LSE:SRC:
Net Margin %: 10.57% (326% above median its 10-year median of 2.48)
GF Value™: £0.83 vs. price of £1.21 (45.7% above fair value)
Industry Position: 133.8% above the Building Materials median (#141 of 407)
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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