SigmaRocLSE:SRC +1.77%61 FCF Margin % is 9.30% as of Dec. 2025, which is 178% above its 10-year median of 3.34. 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 75.68% on this metric.
FCF Margin % is calculated as Free Cash Flow divided by its Revenue. SigmaRoc's Free Cash Flow for the
six
months ended in Dec. 2025 was £49 Mil. SigmaRoc's Revenue for the
six
months ended in Dec. 2025 was £526 Mil. Therefore, SigmaRoc's FCF Margin % for the quarter that ended in Dec. 2025 was 9.30%.
The historical rank and industry rank for SigmaRoc's FCF Margin % or its related term are showing as below:
LSE:SRC'
s FCF Margin % Range Over the Past 10 Years
Min: -836.11 Med: 3.34 Max: 17.6
Current: 10.52
During the past 13 years, the highest FCF Margin % of SigmaRoc was 17.60%. The lowest was -836.11%. And the median was 3.34%.
LSE:SRC's FCF Margin % is ranked better than 75.68% of 403
companies
in the Building Materials industry
Industry Median: 3.76
vs LSE:SRC: 10.52
SigmaRoc FCF Margin % Related Terms
SigmaRoc FCF Margin % Historical Data
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The historical data trend for SigmaRoc's FCF 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 FCF Margin %, along with its competitors' market caps and FCF 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 FCF Margin % vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, SigmaRoc's FCF Margin % distribution charts can be found below:
* The bar in red indicates where SigmaRoc's FCF 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 FCF Margin % of 9.30% as of Dec. 2025. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on SigmaRoc and its competitors. This is 178% above median its historical median of 3.34. According to the industry distribution chart, SigmaRoc ranks #98 out of 403 companies in the Building Materials industry, placing it in the top 24.3%.
Is SigmaRoc's FCF Margin % too high?
SigmaRoc's current FCF Margin % of 9.30% is 178% above median its 10-year median of 3.34. The Building Materials industry median FCF Margin % is 3.76. SigmaRoc's value of 9.30% is 147.3% above this industry median. Based on the distribution chart, SigmaRoc ranks #98 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 FCF Margin % compare to CRH and VMC?
According to the Building Materials industry distribution chart, SigmaRoc ranks #98 out of 403 companies for FCF Margin %. This places SigmaRoc in the top 24% of its industry — outperforming the majority of peers. The industry median FCF Margin % is 3.76. SigmaRoc's value of 9.30% is 147.3% above this benchmark. While the company's 10-year median is 3.34 vs. the industry median of 3.76, 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 FCF Margin % for a Building Materials company?
The median FCF Margin % among Building Materials companies is 3.76, based on 403 companies in the industry. Companies in the top quartile (top 25%) have a FCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, FCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. SigmaRoc's current FCF Margin % of 9.30% is 147.3% 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on SigmaRoc and its competitors. For the Building Materials industry, the median FCF Margin % is 3.76 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SigmaRoc's current FCF Margin % is 9.30%, which is 178% above median its own 10-year median of 3.34. 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 FCF Margin % is 9.30%, which is 178% above median its 10-year median of 3.34 and 147.3% above the Building Materials industry median of 3.76. 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 FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For SigmaRoc (LSE:SRC), the current FCF Margin % is 9.30% 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:
FCF Margin %: 9.30% (178% above median its 10-year median of 3.34)
GF Value™: £0.83 vs. price of £1.21 (45.7% above fair value)
Industry Position: 147.3% above the Building Materials median (#98 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
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