Naturgy Energy GroupWBO:GAS +1.73%66 3-Year ROIIC % is 36.75 as of Dec. 2025, which is 520% above its 10-year median of 5.93. GuruFocus rates WBO:GAS with a GF Score™ of 66/100 and a GF Value™ of €22.45 (Modestly Overvalued). The stock has 7 warning signs investors should review. Among 476 Utilities - Regulated companies, Naturgy Energy Group ranks better than 90.76% on this metric.
3-Year Return on Invested Incremental Capital (3-Year ROIIC %) measures the change in earnings as a percentage of change in investment over 3-year.
Naturgy Energy Group's 3-Year ROIIC % for the quarter that ended in Dec. 2025 was 36.75%. High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
The industry rank for Naturgy Energy Group's 3-Year ROIIC % or its related term are showing as below:
WBO:GAS's 3-Year ROIIC % is ranked better than 90.76% of 476
companies
in the Utilities - Regulated industry
Industry Median: 3.99
vs WBO:GAS: 36.75
Naturgy Energy Group (WBO:GAS) 3-Year ROIIC % Explanation
Return on Incremental Invested Capital (ROIIC) is an extension of Return on Investment Capital (ROIC). ROIC % tells investors how efficiently that profitability is earned per dollar of company capital. ROIIC narrows the focus even further and shows how profitable each additional unit of capital investment could be. ROIIC % is a more powerful metric than ROIC because it measures how much money the company can generate going forward on future capital investments.
High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
Be Aware
It's important to keep in mind that when tracking ROIIC, the metric is better suited to forecasting the trend of future returns rather than measuring current return on investment.
Naturgy Energy Group 3-Year ROIIC % Related Terms
Naturgy Energy Group 3-Year ROIIC % Historical Data
* Premium members only.
The historical data trend for Naturgy Energy Group's 3-Year ROIIC % 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:GAS vs ATO, NI, UGI: 3-Year ROIIC % Comparison
For the Utilities - Regulated Gas subindustry, Naturgy Energy Group's 3-Year ROIIC %, along with its competitors' market caps and 3-Year ROIIC % 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.
Naturgy Energy Group 3-Year ROIIC % vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Naturgy Energy Group's 3-Year ROIIC % distribution charts can be found below:
* The bar in red indicates where Naturgy Energy Group's 3-Year ROIIC % falls into.
Naturgy Energy Group's 3-Year ROIIC % for the quarter that ended in Dec. 2025 is calculated as:
3-Year ROIIC %
=
3-Year Incremental Net Operating Profit After Taxes (NOPAT)**
/
3-Year Incremental Invested Capital**
=
( 2818.4033 (Dec. 2025) - 2604.1532 (Dec. 2022) )
/
( 33778 (Dec. 2025) - 33195 (Dec. 2022) )
=
214.2501
/
583
=
36.75%***
* 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.
** Annual data of NOPAT and Invested Capital was used to calculate 3-Year ROIIC %.
*** Please be aware that the ROIIC (Return on Invested Capital) calculations are based on company-level data using the primary share class. The calculated data provided is for demonstration purposes and may slightly differ from the results displayed in the title due to potential variations caused by currency exchange rate differences throughout the year.
Naturgy Energy Group (WBO:GAS) has a 3-Year ROIIC % of 36.75 as of Dec. 2025. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Naturgy Energy Group and its competitors. This is 520% above median its historical median of 5.93. According to the industry distribution chart, Naturgy Energy Group ranks #44 out of 476 companies in the Utilities - Regulated industry, placing it in the top 9.2%.
Is Naturgy Energy Group's 3-Year ROIIC % too high?
Naturgy Energy Group's current 3-Year ROIIC % of 36.75 is 520% above median its 10-year median of 5.93. The Utilities - Regulated industry median 3-Year ROIIC % is 3.99. Naturgy Energy Group's value of 36.75 is 821.1% above this industry median. Based on the distribution chart, Naturgy Energy Group ranks #44 out of 476 companies in the Utilities - Regulated industry, which is in the top quartile — a strong position relative to peers. Overall, Naturgy Energy Group has a GF Score™ of 66/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Naturgy Energy Group's 3-Year ROIIC % compare to ATO and NI?
According to the Utilities - Regulated industry distribution chart, Naturgy Energy Group ranks #44 out of 476 companies for 3-Year ROIIC %. This places Naturgy Energy Group in the top 9% of its industry — outperforming the majority of peers. The industry median 3-Year ROIIC % is 3.99. Naturgy Energy Group's value of 36.75 is 821.1% above this benchmark. While the company's 10-year median is 5.93 vs. the industry median of 3.99, Naturgy Energy 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 3-Year ROIIC % for an Utilities - Regulated company?
The median 3-Year ROIIC % among Utilities - Regulated companies is 3.99, based on 476 companies in the industry. Companies in the top quartile (top 25%) have a 3-Year ROIIC % significantly above this median, while those in the bottom quartile fall well below. However, 3-Year ROIIC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Naturgy Energy Group's current 3-Year ROIIC % of 36.75 is 821.1% 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 3-Year ROIIC % mean?
A high 3-Year ROIIC % can signal that a stock is expensive relative to its fundamentals. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Naturgy Energy Group and its competitors. For the Utilities - Regulated industry, the median 3-Year ROIIC % is 3.99 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Naturgy Energy Group's current 3-Year ROIIC % is 36.75, which is 520% above median its own 10-year median of 5.93. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Naturgy Energy Group stock overvalued right now?
Based on GuruFocus' analysis, Naturgy Energy Group (WBO:GAS) is currently considered Modestly Overvalued. The stock's GF Value™ is €22.45, compared to a current price of €28.16 — trading 25.4% above its estimated fair value. The current 3-Year ROIIC % is 36.75, which is 520% above median its 10-year median of 5.93 and 821.1% above the Utilities - Regulated industry median of 3.99. Naturgy Energy Group's overall GF Score™ is 66/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year ROIIC % calculated?
3-Year ROIIC % is calculated from a company's financial statements. For Naturgy Energy Group (WBO:GAS), the current 3-Year ROIIC % is 36.75 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 Naturgy Energy Group (WBO:GAS) Overvalued in 2026?
Based on GuruFocus' analysis, Naturgy Energy Group stock appears to be overvalued.
The current stock price of €28.16 is trading 25.4% above its estimated GF Value™ of €22.45.
GuruFocus considers Naturgy Energy Group to be Modestly Overvalued.
Key valuation signals for WBO:GAS:
3-Year ROIIC %: 36.75 (520% above median its 10-year median of 5.93)
GF Value™: €22.45 vs. price of €28.16 (25.4% above fair value)
Industry Position: 821.1% above the Utilities - Regulated median (#44 of 476)
No single metric tells the full story. See the WBO:GAS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Naturgy stems from the 2008 acquisition of Union Fenosa. The company operates across the gas value chain, from procurement to distribution and marketing. It owns and operates the largest gas distribution network in Spain, where it is also the leading retail gas supplier. The company additionally operates gas and electricity distribution networks across several Latin American countries. It owns 17.9 GW of generation capacity, including 7.3 GW of wind and solar.
66GF Score
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