Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Viohalco's change in inventory for the quarter that ended in Dec. 2025 was €-157 Mil. It means Viohalco's inventory
increased by €157 Mil
from Jun. 2025 to Dec. 2025 .
Viohalco's change in inventory for the fiscal year that ended in Dec. 2025 was €-211 Mil. It means Viohalco's inventory
increased by €211 Mil
from Dec. 2024 to Dec. 2025 .
Days Inventory indicates the number of days of goods in sales that a company has in the inventory.
Viohalco's Days Inventory for the quarter that ended in Dec. 2025 was 111.35.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Viohalco's Inventory Turnover for the quarter that ended in Dec. 2025 was 1.64.
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.
Viohalco's Inventory-to-Revenue for the quarter that ended in Dec. 2025 was 0.54.
Viohalco (ATH:VIO) Change In Inventory Explanation
1. Days Inventory indicates the number of days of goods in sales that a company has in the inventory.
Viohalco's Days Inventory for the quarter that ended in is calculated as:
3. 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.
Viohalco's Inventory to Revenue for the quarter 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.
Viohalco Change In Inventory Related Terms
Viohalco Change In Inventory Historical Data
* Premium members only.
The historical data trend for Viohalco's Change In 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.
Change In Inventory is the difference between last period's ending inventory and the current period's ending inventory.
Change In Inventory for the trailing twelve months (TTM) ended in Dec. 2025 adds up the semi-annually data reported by the company within the most recent 12 months, which was €-211 Mil.
* 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.
What does a Change In Inventory of €-211 Mil mean?
Viohalco (ATH:VIO) has a Change In Inventory of €-211 Mil as of Dec. 2025. Change in Inventory is the difference between current-period inventory and past-period inventory. View historical data for Viohalco and its competitors.
Is Viohalco's Change In Inventory too high?
Viohalco's current Change In Inventory is €-211 Mil. Overall, Viohalco has a GF Score™ of 70/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Viohalco's Change In Inventory compare to CRS and ATI?
Viohalco's Change In Inventory of €-211 Mil can be compared against companies in the Industrial Products industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Change In Inventory for an Industrial Products company?
A good Change In Inventory depends on the Industrial Products industry context. However, Change In Inventory 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 Change In Inventory mean?
A high Change In Inventory can signal that a stock is expensive relative to its fundamentals. Change in Inventory is the difference between current-period inventory and past-period inventory. View historical data for Viohalco and its competitors. Viohalco's current Change In Inventory is €-211 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Viohalco stock overvalued right now?
Based on GuruFocus' analysis, Viohalco (ATH:VIO) is currently considered Significantly Overvalued. The stock's GF Value™ is €6.54, compared to a current price of €18.00 — trading 175.2% above its estimated fair value. The current Change In Inventory is €-211 Mil. Viohalco's overall GF Score™ is 70/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Change In Inventory calculated?
Change In Inventory is calculated from a company's financial statements. For Viohalco (ATH:VIO), the current Change In Inventory is €-211 Mil 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 Viohalco (ATH:VIO) Overvalued in 2026?
Based on GuruFocus' analysis, Viohalco stock appears to be overvalued.
The current stock price of €18.00 is trading 175.2% above its estimated GF Value™ of €6.54.
GuruFocus considers Viohalco to be Significantly Overvalued.
Key valuation signals for ATH:VIO:
Change In Inventory: €-211 Mil
GF Value™: €6.54 vs. price of €18.00 (175.2% above fair value)
No single metric tells the full story. See the ATH:VIO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Viohalco SA is the Belgium-based holding company of metal processing companies, which sustainably manufacture aluminium, copper, cables, steel, and steel pipes products. The company's products are used across various industries, including packaging (rigid, semi-rigid, and flexible), transportation (automotive, shipbuilding, road, and rail), building and construction, and Others. Its seven reportable segments are divided in two divisions, which operate in different industries: Industrial Division, which includes: Aluminium, Copper, Steel, Cables, Steel pipes, and Other activities segments ; and Real Estate division, which has Real estate segment. The company's geographical coverage is Greece, Germany, United Kingdom, France, Bulgaria, Romania, Serbia, North Macedonia and U.S.A.
70GF Score
Get the complete analysis for ATH:VIO
Change In Inventory is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ATH:VIO has been successfully added to your 
