Naturgy Energy GroupWBO:GAS -1.44%66 Days Inventory is 30.26 as of Dec. 2025, which is 53% above its 10-year median of 19.77. GuruFocus rates WBO:GAS with a GF Score™ of 66/100 and a GF Value™ of €22.43 (Modestly Overvalued). The stock has 7 warning signs investors should review. Among 450 Utilities - Regulated companies, Naturgy Energy Group ranks worse than 58.44% on this metric.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Naturgy Energy Group's Inventory Turnover for the
six
months ended in Dec. 2025 was 6.03.
Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Naturgy Energy Group's Inventory-to-Revenue for the
six
months ended in Dec. 2025 was 0.11.
Naturgy Energy Group (WBO:GAS) Days Inventory Explanation
Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:
1. Inventory Turnover measures how fast the company turns over its inventory within a year.
Naturgy Energy Group's Inventory Turnover for the
six
months ended in Dec. 2025 is calculated as
2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Naturgy Energy Group's Inventory to Revenue for the
six
months 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.
Be Aware
A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.
Naturgy Energy Group Days Inventory Related Terms
Naturgy Energy Group Days Inventory Historical Data
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The historical data trend for Naturgy Energy Group's Days Inventory 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: Days Inventory Comparison
For the Utilities - Regulated Gas subindustry, Naturgy Energy Group's Days Inventory, along with its competitors' market caps and Days Inventory 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 Days Inventory vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Naturgy Energy Group's Days Inventory distribution charts can be found below:
* The bar in red indicates where Naturgy Energy Group's Days Inventory falls into.
* 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.
Naturgy Energy Group (WBO:GAS) has a Days Inventory of 30.26 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Naturgy Energy Group and its competitors. This is 53% above median its historical median of 19.77. Over the past decade, Naturgy Energy Group's Days Inventory has ranged from 15.21 to 36.47. According to the industry distribution chart, Naturgy Energy Group ranks #263 out of 450 companies in the Utilities - Regulated industry, placing it in the top 58.4%.
Is Naturgy Energy Group's Days Inventory too high?
Naturgy Energy Group's current Days Inventory of 30.26 is 53% above median its 10-year median of 19.77. Over the past 10 years, this metric has ranged from a low of 15.21 to a high of 36.47. The Utilities - Regulated industry median Days Inventory is 22.52. Naturgy Energy Group's value of 30.26 is 34.4% above this industry median. Based on the distribution chart, Naturgy Energy Group ranks #263 out of 450 companies in the Utilities - Regulated industry, which is below the industry midpoint. 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 Days Inventory compare to ATO and NI?
According to the Utilities - Regulated industry distribution chart, Naturgy Energy Group ranks #263 out of 450 companies for Days Inventory. This places Naturgy Energy Group in the lower half of its industry. The industry median Days Inventory is 22.52. Naturgy Energy Group's value of 30.26 is 34.4% above this benchmark. Historically, Naturgy Energy Group's own Days Inventory has ranged from 15.21 to 36.47 over the past decade. While the company's 10-year median is 19.77 vs. the industry median of 22.52, 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 Days Inventory for an Utilities - Regulated company?
The median Days Inventory among Utilities - Regulated companies is 22.52, based on 450 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Naturgy Energy Group's current Days Inventory of 30.26 is 34.4% 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 Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Naturgy Energy Group and its competitors. For the Utilities - Regulated industry, the median Days Inventory is 22.52 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Naturgy Energy Group's current Days Inventory is 30.26, which is 53% above median its own 10-year median of 19.77. 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 €22.43, compared to a current price of €27.40 — trading 22.2% above its estimated fair value. The current Days Inventory is 30.26, which is 53% above median its 10-year median of 19.77 and 34.4% above the Utilities - Regulated industry median of 22.52. 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 Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For Naturgy Energy Group (WBO:GAS), the current Days Inventory is 30.26 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 €27.40 is trading 22.2% above its estimated GF Value™ of €22.43.
GuruFocus considers Naturgy Energy Group to be Modestly Overvalued.
Key valuation signals for WBO:GAS:
Days Inventory: 30.26 (53% above median its 10-year median of 19.77)
GF Value™: €22.43 vs. price of €27.40 (22.2% above fair value)
Industry Position: 34.4% above the Utilities - Regulated median (#263 of 450)
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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