Isa Energia BrasilBSP:ISAE4 -0.07%76 Operating Margin % is 43.82% as of Mar. 2026, which is 35% below its 10-year median of 67.79. GuruFocus rates BSP:ISAE4 with a GF Score™ of 76/100 and a GF Value™ of R$31.07 (Modestly Undervalued). The stock has 9 warning signs investors should review. Among 417 Utilities - Independent Power Producers companies, Isa Energia Brasil ranks better than 84.17% on this metric.
Isa Energia Brasil SA operating margin has been in a 5-year decline. The average rate of decline per year is -14.9%.
The historical rank and industry rank for Isa Energia Brasil's Operating Margin % or its related term are showing as below:
BSP:ISAE4'
s Operating Margin % Range Over the Past 10 Years
Min: 36.43 Med: 67.79 Max: 106.99
Current: 36.43
BSP:ISAE4's Operating Margin % is ranked better than 84.17% of 417
companies
in the Utilities - Independent Power Producers industry
Industry Median: 13.27
vs BSP:ISAE4: 36.43
Isa Energia Brasil's 5-Year Average Operating Margin % Growth Rate was -14.90% per year.
Isa Energia Brasil (BSP:ISAE4) 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.
Isa Energia Brasil Operating Margin % Related Terms
Isa Energia Brasil Operating Margin % Historical Data
* Premium members only.
The historical data trend for Isa Energia Brasil's Operating 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.
BSP:ISAE4 vs CEG, VST, NRG: Operating Margin % Comparison
For the Utilities - Independent Power Producers subindustry, Isa Energia Brasil'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.
Isa Energia Brasil Operating Margin % vs Utilities - Independent Power Producers Industry
For the Utilities - Independent Power Producers industry and Utilities sector, Isa Energia Brasil's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Isa Energia Brasil's Operating Margin % falls into.
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.
Isa Energia Brasil's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as
* 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.
Isa Energia Brasil (BSP:ISAE4) has a Operating Margin % of 43.82% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Isa Energia Brasil and its competitors. This is 35% below median its historical median of 67.79. Over the past decade, Isa Energia Brasil's Operating Margin % has ranged from 36.43 to 106.99. According to the industry distribution chart, Isa Energia Brasil ranks #66 out of 417 companies in the Utilities - Independent Power Producers industry, placing it in the top 15.8%.
Is Isa Energia Brasil's Operating Margin % too high?
Isa Energia Brasil's current Operating Margin % of 43.82% is 35% below median its 10-year median of 67.79. Over the past 10 years, this metric has ranged from a low of 36.43 to a high of 106.99. The Utilities - Independent Power Producers industry median Operating Margin % is 13.27. Isa Energia Brasil's value of 43.82% is 230.2% above this industry median. Based on the distribution chart, Isa Energia Brasil ranks #66 out of 417 companies in the Utilities - Independent Power Producers industry, which is in the top quartile — a strong position relative to peers. Overall, Isa Energia Brasil has a GF Score™ of 76/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Isa Energia Brasil's Operating Margin % compare to CEG and VST?
According to the Utilities - Independent Power Producers industry distribution chart, Isa Energia Brasil ranks #66 out of 417 companies for Operating Margin %. This places Isa Energia Brasil in the top 16% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 13.27. Isa Energia Brasil's value of 43.82% is 230.2% above this benchmark. Historically, Isa Energia Brasil's own Operating Margin % has ranged from 36.43 to 106.99 over the past decade. While the company's 10-year median is 67.79 vs. the industry median of 13.27, Isa Energia Brasil 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 an Utilities - Independent Power Producers company?
The median Operating Margin % among Utilities - Independent Power Producers companies is 13.27, based on 417 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. Isa Energia Brasil's current Operating Margin % of 43.82% is 230.2% 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 Isa Energia Brasil and its competitors. For the Utilities - Independent Power Producers industry, the median Operating Margin % is 13.27 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Isa Energia Brasil's current Operating Margin % is 43.82%, which is 35% below median its own 10-year median of 67.79. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Isa Energia Brasil stock overvalued right now?
Based on GuruFocus' analysis, Isa Energia Brasil (BSP:ISAE4) is currently considered Modestly Undervalued. The stock's GF Value™ is R$31.07, compared to a current price of R$27.83 — trading 10.4% below its estimated fair value. The current Operating Margin % is 43.82%, which is 35% below median its 10-year median of 67.79 and 230.2% above the Utilities - Independent Power Producers industry median of 13.27. Isa Energia Brasil's overall GF Score™ is 76/100 with 9 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 Isa Energia Brasil (BSP:ISAE4), the current Operating Margin % is 43.82% 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 Isa Energia Brasil (BSP:ISAE4) Overvalued in 2026?
Based on GuruFocus' analysis, Isa Energia Brasil stock appears to be undervalued.
The current stock price of R$27.83 is trading 10.4% below its estimated GF Value™ of R$31.07.
GuruFocus considers Isa Energia Brasil to be Modestly Undervalued.
Key valuation signals for BSP:ISAE4:
Operating Margin %: 43.82% (35% below median its 10-year median of 67.79)
GF Value™: R$31.07 vs. price of R$27.83 (10.4% below fair value)
Industry Position: 230.2% above the Utilities - Independent Power Producers median (#66 of 417)
No single metric tells the full story. See the BSP:ISAE4 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Isa Energia Brasil SA Formerly Cia de Transmissao de Energia Eletrica Paulista, or CTEEP, is a Brazilian private-public utility concession company involved in the transmission of electric power. Through its subsidiaries, CTEEP plans, constructs, operates, and maintains electric transmission systems and transmission-related infrastructure projects throughout the country of Brazil. The company segments its operations in one business segment: which is electric power transmission.
76GF Score
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