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Alumasc GroupLSE:ALU -1.38%74 ROC (Joel Greenblatt) % is 24.47% as of Dec. 2025, which is 42% below its 10-year median of 42.50. GuruFocus rates LSE:ALU with a GF Score™ of 74/100 and a GF Value™ of £2.36 (Fairly Valued). The stock has 1 warning sign investors should review. Among 506 Utilities - Regulated companies, Alumasc Group ranks better than 82.21% on this metric.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Alumasc Group's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was 24.47%.
The historical rank and industry rank for Alumasc Group's ROC (Joel Greenblatt) % or its related term are showing as below:
LSE:ALU'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 8.25 Med: 42.5 Max: 143.49
Current: 31.39
During the past 13 years, Alumasc Group's highest ROC (Joel Greenblatt) % was 143.49%. The lowest was 8.25%. And the median was 42.50%.
LSE:ALU's ROC (Joel Greenblatt) % is ranked better than 82.21% of 506
companies
in the Utilities - Regulated industry
Industry Median: 10.845
vs LSE:ALU: 31.39
Alumasc Group's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 15.20% per year.
Alumasc Group (LSE:ALU) ROC (Joel Greenblatt) % Explanation
The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.
Alumasc Group ROC (Joel Greenblatt) % Related Terms
Alumasc Group ROC (Joel Greenblatt) % Historical Data
* Premium members only.
The historical data trend for Alumasc Group's ROC (Joel Greenblatt) % 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:ALU vs AWK, WTRG, AWR: ROC (Joel Greenblatt) % Comparison
For the Utilities - Regulated Water subindustry, Alumasc Group's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (Joel Greenblatt) % 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.
Alumasc Group ROC (Joel Greenblatt) % vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Alumasc Group's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Alumasc Group's ROC (Joel Greenblatt) % falls into.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:
EBIT stands for Earnings Before Interest and Taxes.
Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.
GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.
Note:
The EBIT data used here is two times the semi-annual (Dec. 2025) EBIT data.
* 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.
What does a ROC (Joel Greenblatt) % of 24.47% mean?
Alumasc Group (LSE:ALU) has a ROC (Joel Greenblatt) % of 24.47% as of Dec. 2025. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Alumasc Group and its competitors. This is 42% below median its historical median of 42.50. Over the past decade, Alumasc Group's ROC (Joel Greenblatt) % has ranged from 8.25 to 143.49. According to the industry distribution chart, Alumasc Group ranks #90 out of 506 companies in the Utilities - Regulated industry, placing it in the top 17.8%.
Is Alumasc Group's ROC (Joel Greenblatt) % too high?
Alumasc Group's current ROC (Joel Greenblatt) % of 24.47% is 42% below median its 10-year median of 42.50. Over the past 10 years, this metric has ranged from a low of 8.25 to a high of 143.49. The Utilities - Regulated industry median ROC (Joel Greenblatt) % is 10.85. Alumasc Group's value of 24.47% is 125.6% above this industry median. Based on the distribution chart, Alumasc Group ranks #90 out of 506 companies in the Utilities - Regulated industry, which is in the top quartile — a strong position relative to peers. Overall, Alumasc Group has a GF Score™ of 74/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Alumasc Group's ROC (Joel Greenblatt) % compare to AWK and WTRG?
According to the Utilities - Regulated industry distribution chart, Alumasc Group ranks #90 out of 506 companies for ROC (Joel Greenblatt) %. This places Alumasc Group in the top 18% of its industry — outperforming the majority of peers. The industry median ROC (Joel Greenblatt) % is 10.85. Alumasc Group's value of 24.47% is 125.6% above this benchmark. Historically, Alumasc Group's own ROC (Joel Greenblatt) % has ranged from 8.25 to 143.49 over the past decade. While the company's 10-year median is 42.50 vs. the industry median of 10.85, Alumasc Group 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 ROC (Joel Greenblatt) % for an Utilities - Regulated company?
The median ROC (Joel Greenblatt) % among Utilities - Regulated companies is 10.85, based on 506 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Alumasc Group's current ROC (Joel Greenblatt) % of 24.47% is 125.6% 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 ROC (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Alumasc Group and its competitors. For the Utilities - Regulated industry, the median ROC (Joel Greenblatt) % is 10.85 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Alumasc Group's current ROC (Joel Greenblatt) % is 24.47%, which is 42% below median its own 10-year median of 42.50. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Alumasc Group stock overvalued right now?
Based on GuruFocus' analysis, Alumasc Group (LSE:ALU) is currently considered Fairly Valued. The stock's GF Value™ is £2.36, compared to a current price of £2.15 — trading 8.9% below its estimated fair value. The current ROC (Joel Greenblatt) % is 24.47%, which is 42% below median its 10-year median of 42.50 and 125.6% above the Utilities - Regulated industry median of 10.85. Alumasc Group's overall GF Score™ is 74/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Alumasc Group (LSE:ALU), the current ROC (Joel Greenblatt) % is 24.47% 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 Alumasc Group (LSE:ALU) Overvalued in 2026?
Based on GuruFocus' analysis, Alumasc Group stock appears to be undervalued.
The current stock price of £2.15 is trading 8.9% below its estimated GF Value™ of £2.36.
GuruFocus considers Alumasc Group to be Fairly Valued.
Key valuation signals for LSE:ALU:
ROC (Joel Greenblatt) %: 24.47% (42% below median its 10-year median of 42.50)
GF Value™: £2.36 vs. price of £2.15 (8.9% below fair value)
Industry Position: 125.6% above the Utilities - Regulated median (#90 of 506)
No single metric tells the full story. See the LSE:ALU stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Alumasc Group PLC is a building product, system, and solution company. Its segment includes Water Management, Building Envelope, and Housebuilding Products. The company operates in the UK, Europe, North America, the Middle East, the Far East, and the Rest of the World. It generates the majority of its revenue from the United Kingdom. The company generates the majority of its revenue from Water Management, which provides rainwater and drainage products that capture, retain, and control the flow of rainwater inside and outside buildings from the original source to water course, sewer, or ground.
74GF Score
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