AccionaWBO:ANA -2.79%79 Operating Margin % is 8.90% as of Dec. 2025, which is 9% above its 10-year median of 8.15. GuruFocus rates WBO:ANA with a GF Score™ of 79/100 and a GF Value™ of €158.96 (Significantly Overvalued). The stock has 10 warning signs investors should review. Among 1,767 Construction companies, Acciona ranks better than 68.42% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Acciona's Operating Income for the
six
months ended in Dec. 2025 was €979 Mil. Acciona's Revenue for the
six
months ended in Dec. 2025 was €11,006 Mil. Therefore, Acciona's Operating Margin % for the quarter that ended in Dec. 2025 was 8.90%.
Good Sign:
Acciona SA operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for Acciona's Operating Margin % or its related term are showing as below:
WBO:ANA'
s Operating Margin % Range Over the Past 10 Years
Min: 5.31 Med: 8.15 Max: 10.35
Current: 9.33
WBO:ANA's Operating Margin % is ranked better than 68.42% of 1767
companies
in the Construction industry
Industry Median: 5.89
vs WBO:ANA: 9.33
Acciona's 5-Year Average Operating Margin % Growth Rate was 1.50% per year.
Acciona's Operating Income for the
six
months ended in Dec. 2025 was €979 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was €1,888 Mil.
Acciona (WBO:ANA) 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.
Acciona Operating Margin % Related Terms
Acciona Operating Margin % Historical Data
* Premium members only.
The historical data trend for Acciona'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.
WBO:ANA vs PWR, FIX, EME: Operating Margin % Comparison
For the Engineering & Construction subindustry, Acciona'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.
Acciona Operating Margin % vs Construction Industry
For the Construction industry and Industrials sector, Acciona's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Acciona'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.
Acciona'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.
Acciona (WBO:ANA) has a Operating Margin % of 8.90% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Acciona and its competitors. This is near median its historical median of 8.15. Over the past decade, Acciona's Operating Margin % has ranged from 5.31 to 10.35. According to the industry distribution chart, Acciona ranks #558 out of 1767 companies in the Construction industry, placing it in the top 31.6%.
Is Acciona's Operating Margin % too high?
Acciona's current Operating Margin % of 8.90% is near median its 10-year median of 8.15. Over the past 10 years, this metric has ranged from a low of 5.31 to a high of 10.35. The Construction industry median Operating Margin % is 5.89. Acciona's value of 8.90% is 51.1% above this industry median. Based on the distribution chart, Acciona ranks #558 out of 1767 companies in the Construction industry, which is above the industry midpoint. Overall, Acciona has a GF Score™ of 79/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Acciona's Operating Margin % compare to PWR and FIX?
According to the Construction industry distribution chart, Acciona ranks #558 out of 1767 companies for Operating Margin %. This puts Acciona in the upper half of its industry. The industry median Operating Margin % is 5.89. Acciona's value of 8.90% is 51.1% above this benchmark. Historically, Acciona's own Operating Margin % has ranged from 5.31 to 10.35 over the past decade. While the company's 10-year median is 8.15 vs. the industry median of 5.89, Acciona 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 Construction company?
The median Operating Margin % among Construction companies is 5.89, based on 1,767 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. Acciona's current Operating Margin % of 8.90% is 51.1% 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 Acciona and its competitors. For the Construction industry, the median Operating Margin % is 5.89 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Acciona's current Operating Margin % is 8.90%, which is near median its own 10-year median of 8.15. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Acciona stock overvalued right now?
Based on GuruFocus' analysis, Acciona (WBO:ANA) is currently considered Significantly Overvalued. The stock's GF Value™ is €158.96, compared to a current price of €271.60 — trading 70.9% above its estimated fair value. The current Operating Margin % is 8.90%, which is near median its 10-year median of 8.15 and 51.1% above the Construction industry median of 5.89. Acciona's overall GF Score™ is 79/100 with 10 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 Acciona (WBO:ANA), the current Operating Margin % is 8.90% 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 Acciona (WBO:ANA) Overvalued in 2026?
Based on GuruFocus' analysis, Acciona stock appears to be overvalued.
The current stock price of €271.60 is trading 70.9% above its estimated GF Value™ of €158.96.
GuruFocus considers Acciona to be Significantly Overvalued.
Key valuation signals for WBO:ANA:
Operating Margin %: 8.90% (near median its 10-year median of 8.15)
GF Value™: €158.96 vs. price of €271.60 (70.9% above fair value)
Industry Position: 51.1% above the Construction median (#558 of 1767)
No single metric tells the full story. See the WBO:ANA stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Acciona SA is an engineering and construction firm providing sustainable solutions for infrastructure and renewable energy projects across the world. It works in various phases, from design and construction to operations and maintenance. The company operates two business divisions energy and infrastructure. The infrastructure division encompasses construction, water treatment, industrial, and service business lines. Projects may be granted under concessions from governments or acquired independently when Acciona identifies an opportunity. Energy developments focus on renewable technologies and primarily revolve around wind, solar, hydro, and biomass. The company has a presence on five continents and utilizes an organizational structure to ensure availability.
79GF Score
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