Gelsenwasser AG (FRA:WWG) Days Inventory: 10.03 (As of Dec. 2025) — 88% Above Median

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FRA:WWG Gelsenwasser AG FRA:WWG
67 GF Score
Price €540.00
GF Value €439.26
Valuation Modestly Overvalued
! 8 Warning Signs
View Full Analysis

What is Gelsenwasser AG Days Inventory?

Gelsenwasser AG FRA:WWG 67 Days Inventory is 10.03 as of Dec. 2025, which is 88% above its 10-year median of 5.33. GuruFocus rates FRA:WWG with a GF Score™ of 67/100 and a GF Value™ of €439.26 (Modestly Overvalued). The stock has 8 warning signs investors should review. Among 454 Utilities - Regulated companies, Gelsenwasser AG ranks better than 74.67% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Gelsenwasser AG's Average Total Inventories for the six months ended in Dec. 2025 was €62 Mil. Gelsenwasser AG's Cost of Goods Sold for the six months ended in Dec. 2025 was €1,133 Mil. Hence, Gelsenwasser AG's Days Inventory for the six months ended in Dec. 2025 was 10.03.

The historical rank and industry rank for Gelsenwasser AG's Days Inventory or its related term are showing as below:

FRA:WWG' s Days Inventory Range Over the Past 10 Years
Min: 1.58   Med: 5.33   Max: 9.21
Current: 9.21

During the past 13 years, Gelsenwasser AG's highest Days Inventory was 9.21. The lowest was 1.58. And the median was 5.33.

FRA:WWG's Days Inventory is ranked better than
74.67% of 454 companies
in the Utilities - Regulated industry
Industry Median: 22.52 vs FRA:WWG: 9.21

Gelsenwasser AG's Days Inventory increased from Dec. 2024 (7.71) to Dec. 2025 (10.03). It might indicate that Gelsenwasser AG's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Gelsenwasser AG's Inventory Turnover for the six months ended in Dec. 2025 was 18.19.

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. Gelsenwasser AG's Inventory-to-Revenue for the six months ended in Dec. 2025 was 0.05.


Gelsenwasser AG  (FRA:WWG) 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.

Gelsenwasser AG'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.

Gelsenwasser AG'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.


Gelsenwasser AG Days Inventory Related Terms


Gelsenwasser AG Days Inventory Historical Data

* Premium members only.

The historical data trend for Gelsenwasser AG'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.

Gelsenwasser AG Days Inventory Chart

Gelsenwasser AG Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.66 1.58 6.12 8.76 9.04

Gelsenwasser AG Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Days Inventory 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 6.41 8.62 7.71 8.73 10.03

FRA:WWG vs SRE, AES: Days Inventory Comparison

For the Utilities - Diversified subindustry, Gelsenwasser AG'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.


Gelsenwasser AG Days Inventory vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Gelsenwasser AG's Days Inventory distribution charts can be found below:

* The bar in red indicates where Gelsenwasser AG's Days Inventory falls into.


FRA:WWG
67GF Score
Gelsenwasser AG FRA:WWG
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Gelsenwasser AG Days Inventory Calculation

Days Inventory indicates the number of days of goods in sales that a company has in the inventory.

Gelsenwasser AG's Days Inventory for the fiscal year that ended in Dec. 2025 is calculated as

Days Inventory (A: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Dec. 2024 ) + Total Inventories (A: Dec. 2025 )) / count ) / Cost of Goods Sold (A: Dec. 2025 )*Days in Period
=( (72.9 + 56.3) / 2 ) / 2607.4*365
=64.6 / 2607.4*365
=9.04

Gelsenwasser AG's Days Inventory for the quarter that ended in Dec. 2025 is calculated as:

Days Inventory (Q: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Jun. 2025 ) + Total Inventories (Q: Dec. 2025 )) / count ) / Cost of Goods Sold (Q: Dec. 2025 )*Days in Period
=( (68.2 + 56.3) / 2 ) / 1132.5*365 / 2
=62.25 / 1132.5*365 / 2
=10.03

* 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 Days Inventory →
What does a Days Inventory of 10.03 mean?
Gelsenwasser AG (FRA:WWG) has a Days Inventory of 10.03 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Gelsenwasser AG and its competitors. This is 88% above median its historical median of 5.33. Over the past decade, Gelsenwasser AG's Days Inventory has ranged from 1.58 to 9.21. According to the industry distribution chart, Gelsenwasser AG ranks #115 out of 454 companies in the Utilities - Regulated industry, placing it in the top 25.3%.
Is Gelsenwasser AG's Days Inventory too high?
Gelsenwasser AG's current Days Inventory of 10.03 is 88% above median its 10-year median of 5.33. Over the past 10 years, this metric has ranged from a low of 1.58 to a high of 9.21. The Utilities - Regulated industry median Days Inventory is 22.52. Gelsenwasser AG's value of 10.03 is 55.5% below this industry median. Based on the distribution chart, Gelsenwasser AG ranks #115 out of 454 companies in the Utilities - Regulated industry, which is above the industry midpoint. Overall, Gelsenwasser AG has a GF Score™ of 67/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Gelsenwasser AG's Days Inventory compare to SRE and AES?
According to the Utilities - Regulated industry distribution chart, Gelsenwasser AG ranks #115 out of 454 companies for Days Inventory. This puts Gelsenwasser AG in the upper half of its industry. The industry median Days Inventory is 22.52. Gelsenwasser AG's value of 10.03 is 55.5% below this benchmark. Historically, Gelsenwasser AG's own Days Inventory has ranged from 1.58 to 9.21 over the past decade. While the company's 10-year median is 5.33 vs. the industry median of 22.52, Gelsenwasser AG has consistently been below 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 454 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. Gelsenwasser AG's current Days Inventory of 10.03 is 55.5% below 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 Gelsenwasser AG 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. Gelsenwasser AG's current Days Inventory is 10.03, which is 88% above median its own 10-year median of 5.33. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Gelsenwasser AG stock overvalued right now?
Based on GuruFocus' analysis, Gelsenwasser AG (FRA:WWG) is currently considered Modestly Overvalued. The stock's GF Value™ is €439.26, compared to a current price of €540.00 — trading 22.9% above its estimated fair value. The current Days Inventory is 10.03, which is 88% above median its 10-year median of 5.33 and 55.5% below the Utilities - Regulated industry median of 22.52. Gelsenwasser AG's overall GF Score™ is 67/100 with 8 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 Gelsenwasser AG (FRA:WWG), the current Days Inventory is 10.03 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 Gelsenwasser AG (FRA:WWG) Overvalued in 2026?

Based on GuruFocus' analysis, Gelsenwasser AG stock appears to be overvalued. The current stock price of €540.00 is trading 22.9% above its estimated GF Value™ of €439.26. GuruFocus considers Gelsenwasser AG to be Modestly Overvalued.

Key valuation signals for FRA:WWG:

  • Days Inventory: 10.03 (88% above median its 10-year median of 5.33)
  • GF Value™: €439.26 vs. price of €540.00 (22.9% above fair value)
  • GF Score™: 67/100 with 8 warning signs
  • Industry Position: 55.5% below the Utilities - Regulated median (#115 of 454)

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


Gelsenwasser AG Business Description

Other Exchanges WWG:Germany
Address Willy-Brandt-Allee 26, Gelsenkirchen, DEU, 45891
Gelsenwasser AG is engaged in supplying their customers with drinking and process water as well as with natural gas and heating to households, businesses, public institutions, and industry. It also performs wastewater disposal and electricity supply functions. The company generates revenue mostly from gas and water.
67GF Score

Get the complete analysis for FRA:WWG

Days Inventory is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€540.00
Price
€439.26
GF Value