Companhia Brasileira de AluminioBSP:CBAV3 +0.28%55 Operating Margin % is 12.46% as of Mar. 2026, which is 123% above its 10-year median of 5.59. GuruFocus rates BSP:CBAV3 with a GF Score™ of 55/100 and a GF Value™ of R$5.43 (Significantly Overvalued). The stock has 11 warning signs investors should review. Among 841 Metals & Mining companies, Companhia Brasileira de Aluminio ranks worse than 59.1% on this metric.
Companhia Brasileira de Aluminio SA had lost money in 58% of the time over the past 12quarters.
Companhia Brasileira de Aluminio (BSP:CBAV3) Operating Margin % Explanation
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
Companhia Brasileira de Aluminio Operating Margin % Related Terms
Companhia Brasileira de Aluminio Operating Margin % Historical 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.
Companhia Brasileira de Aluminio Operating Margin % Chart
BSP:CBAV3 vs AA, CENX, CSTM: Operating Margin % Comparison
For the Aluminum subindustry, Companhia Brasileira de Aluminio's Operating Margin %, along with its competitors' market caps and Operating 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.
Companhia Brasileira de Aluminio Operating Margin % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Companhia Brasileira de Aluminio's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Companhia Brasileira de Aluminio's Operating Margin % falls into.
Companhia Brasileira de Aluminio Operating Margin % Calculation
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
* 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.
Companhia Brasileira de Aluminio (BSP:CBAV3) has a Operating Margin % of 12.46% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Companhia Brasileira de Aluminio and its competitors. This is 123% above median its historical median of 5.59. According to the industry distribution chart, Companhia Brasileira de Aluminio ranks #497 out of 841 companies in the Metals & Mining industry, placing it in the top 59.1%.
Is Companhia Brasileira de Aluminio's Operating Margin % too high?
Companhia Brasileira de Aluminio's current Operating Margin % of 12.46% is 123% above median its 10-year median of 5.59. The Metals & Mining industry median Operating Margin % is 5.79. Companhia Brasileira de Aluminio's value of 12.46% is 115.2% above this industry median. Based on the distribution chart, Companhia Brasileira de Aluminio ranks #497 out of 841 companies in the Metals & Mining industry, which is below the industry midpoint. Overall, Companhia Brasileira de Aluminio has a GF Score™ of 55/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Companhia Brasileira de Aluminio's Operating Margin % compare to AA and CENX?
According to the Metals & Mining industry distribution chart, Companhia Brasileira de Aluminio ranks #497 out of 841 companies for Operating Margin %. This places Companhia Brasileira de Aluminio in the lower half of its industry. The industry median Operating Margin % is 5.79. Companhia Brasileira de Aluminio's value of 12.46% is 115.2% above this benchmark. While the company's 10-year median is 5.59 vs. the industry median of 5.79, Companhia Brasileira de Aluminio 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 Operating Margin % for a Metals & Mining company?
The median Operating Margin % among Metals & Mining companies is 5.79, based on 841 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Companhia Brasileira de Aluminio's current Operating Margin % of 12.46% is 115.2% 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Companhia Brasileira de Aluminio and its competitors. For the Metals & Mining industry, the median Operating Margin % is 5.79 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Companhia Brasileira de Aluminio's current Operating Margin % is 12.46%, which is 123% above median its own 10-year median of 5.59. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Companhia Brasileira de Aluminio stock overvalued right now?
Based on GuruFocus' analysis, Companhia Brasileira de Aluminio (BSP:CBAV3) is currently considered Significantly Overvalued. The stock's GF Value™ is R$5.43, compared to a current price of R$10.81 — trading 99.1% above its estimated fair value. The current Operating Margin % is 12.46%, which is 123% above median its 10-year median of 5.59 and 115.2% above the Metals & Mining industry median of 5.79. Companhia Brasileira de Aluminio's overall GF Score™ is 55/100 with 11 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Companhia Brasileira de Aluminio (BSP:CBAV3), the current Operating Margin % is 12.46% as of Mar. 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 Companhia Brasileira de Aluminio (BSP:CBAV3) Overvalued in 2026?
Based on GuruFocus' analysis, Companhia Brasileira de Aluminio stock appears to be overvalued.
The current stock price of R$10.81 is trading 99.1% above its estimated GF Value™ of R$5.43.
GuruFocus considers Companhia Brasileira de Aluminio to be Significantly Overvalued.
Key valuation signals for BSP:CBAV3:
Operating Margin %: 12.46% (123% above median its 10-year median of 5.59)
GF Value™: R$5.43 vs. price of R$10.81 (99.1% above fair value)
Industry Position: 115.2% above the Metals & Mining median (#497 of 841)
No single metric tells the full story. See the BSP:CBAV3 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Companhia Brasileira de Aluminio Business Description
Companhia Brasileira de Aluminio SA is engaged in the exploration of bauxite mining in Brazil, producing and/or trading bauxite, alumina, primary aluminum, and semi-fabricated products in Brazil and abroad. The Company has a wide product range, such as ingots, billets, plates, coils, foil, and extruded products. The company has three operating segments; the Aluminum segment comprises the operations of the aluminum production chain, from bauxite mining to the production of primary and downstream products, the Energy segment; Comprises the sale of surplus energy to the market, and others segment.
55GF Score
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