Duro Felguera (FRA:DF5B) Net Margin %: -101.63% (As of Dec. 2025)


FRA:DF5B Duro Felguera SA FRA:DF5B
4 GF Score
Price €0.20
GF Value €0.17
Valuation Modestly Overvalued
! 7 Warning Signs
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What is Duro Felguera Net Margin %?

Duro Felguera FRA:DF5B -6.10% 4 Net Margin % is -101.63% as of Dec. 2025. GuruFocus rates FRA:DF5B with a GF Score™ of 4/100 and a GF Value™ of €0.17 (Modestly Overvalued). The stock has 7 warning signs investors should review. Among 1,766 Construction companies, Duro Felguera ranks worse than 95.3% on this metric.

Net margin is calculated as Net Income divided by its Revenue. Duro Felguera's Net Income for the six months ended in Dec. 2025 was €-45.0 Mil. Duro Felguera's Revenue for the six months ended in Dec. 2025 was €44.3 Mil. Therefore, Duro Felguera's net margin for the quarter that ended in Dec. 2025 was -101.63%.

The historical rank and industry rank for Duro Felguera's Net Margin % or its related term are showing as below:

FRA:DF5B' s Net Margin % Range Over the Past 10 Years
Min: -128.92   Med: -14.2   Max: 26.77
Current: -44.08


FRA:DF5B's Net Margin % is ranked worse than
95.3% of 1766 companies
in the Construction industry
Industry Median: 3.92 vs FRA:DF5B: -44.08

Duro Felguera  (FRA:DF5B) Net Margin % Explanation

Although Net Income and Earnings-per-Share (EPS) are the most widely used parameter in measuring a company's profitability and valuation, it is the least reliable. The reason is that reported earnings can be manipulated easily by adjusting any numbers such as Depreciation, Depletion and Amotorization and non-recurring items.

But the long term trend of the net margin is a good indicator of the competitiveness and health of the business.


Duro Felguera Net Margin % Related Terms


Duro Felguera Net Margin % Historical Data

* Premium members only.

The historical data trend for Duro Felguera's Net 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.

Duro Felguera Net Margin % Chart

Duro Felguera Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Net Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 26.77 4.27 -25.82 -34.39 -44.08

Duro Felguera Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Net Margin % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -16.82 -35.05 -33.68 -22.28 -101.63

FRA:DF5B vs PWR, FIX, EME: Net Margin % Comparison

For the Engineering & Construction subindustry, Duro Felguera's Net Margin %, along with its competitors' market caps and Net 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.


Duro Felguera Net Margin % vs Construction Industry

For the Construction industry and Industrials sector, Duro Felguera's Net Margin % distribution charts can be found below:

* The bar in red indicates where Duro Felguera's Net Margin % falls into.


FRA:DF5B
4GF Score
Duro Felguera SA FRA:DF5B
Net Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Duro Felguera Net Margin % Calculation

Net margin - also known as net profit margin is the ratio of Net Income divided by net sales or Revenue, usually presented in percent.

Duro Felguera's Net Margin for the fiscal year that ended in Dec. 2025 is calculated as

Net Margin=Net Income (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=-71.001/161.064
=-44.08 %

Duro Felguera's Net Margin for the quarter that ended in Dec. 2025 is calculated as

Net Margin=Net Income (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=-44.979/44.258
=-101.63 %

* 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.

Frequently Asked Questions Learn more about Net Margin % →
What does a Net Margin % of -101.63% mean?
Duro Felguera (FRA:DF5B) has a Net Margin % of -101.63% as of Dec. 2025. Net margin is the ratio of total net income to net sales. View historical data on Duro Felguera and its competitors. According to the industry distribution chart, Duro Felguera ranks #1683 out of 1766 companies in the Construction industry, placing it in the top 95.3%.
Is Duro Felguera's Net Margin % too high?
Duro Felguera's current Net Margin % is -101.63%. Based on the distribution chart, Duro Felguera ranks #1683 out of 1766 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Duro Felguera has a GF Score™ of 4/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Duro Felguera's Net Margin % compare to PWR and FIX?
According to the Construction industry distribution chart, Duro Felguera ranks #1683 out of 1766 companies for Net Margin %. This places Duro Felguera in the lower half of its industry. The industry median Net Margin % is 3.92. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Net Margin % for a Construction company?
The median Net Margin % among Construction companies is 3.92, based on 1,766 companies in the industry. Companies in the top quartile (top 25%) have a Net Margin % significantly above this median, while those in the bottom quartile fall well below. However, Net Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Net Margin % mean?
A high Net Margin % can signal that a stock is expensive relative to its fundamentals. Net margin is the ratio of total net income to net sales. View historical data on Duro Felguera and its competitors. For the Construction industry, the median Net Margin % is 3.92 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Duro Felguera's current Net Margin % is -101.63%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Duro Felguera stock overvalued right now?
Based on GuruFocus' analysis, Duro Felguera (FRA:DF5B) is currently considered Modestly Overvalued. The stock's GF Value™ is €0.17, compared to a current price of €0.20 — trading 17.6% above its estimated fair value. The current Net Margin % is -101.63%. Duro Felguera's overall GF Score™ is 4/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net Margin % calculated?
Net Margin % is calculated from a company's financial statements. For Duro Felguera (FRA:DF5B), the current Net Margin % is -101.63% 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 Duro Felguera (FRA:DF5B) Overvalued in 2026?

Based on GuruFocus' analysis, Duro Felguera stock appears to be overvalued. The current stock price of €0.20 is trading 17.6% above its estimated GF Value™ of €0.17. GuruFocus considers Duro Felguera to be Modestly Overvalued.

Key valuation signals for FRA:DF5B:

  • Net Margin %: -101.63%
  • GF Value™: €0.17 vs. price of €0.20 (17.6% above fair value)
  • GF Score™: 4/100 with 7 warning signs

No single metric tells the full story. See the FRA:DF5B stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Duro Felguera Business Description

Address Centro de Ingenieria, I+D+i y Calidad, Parque Cientifico Tecnologico, Calle Ada Byron 90, Gijon, Asturias, ESP, 33203
Duro Felguera SA is a Spain based company engaged in executing turnkey projects for the energy, industrial and oil and gas sectors. It supplies specialized services for industries and manufactures capital goods. The company is involved in carrying out integrated projects for the construction of power generation plants, mineral treatment and bulk-handling facilities, fuel storage plants and other facilities and installations for the oil and gas industry. In the services area, the organization specializes in the erection of energy and industrial facilities. The business segments of the group are Energy; Mining and Handling; Oil and Gas; Services; Manufacturing of capital goods; and Communications.
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Net Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€0.20
Price
€0.17
GF Value