Athens International Airport (ATH:AIA) Days Inventory: 19.42 (As of Dec. 2025) — 22% Above Median


ATH:AIA Athens International Airport SA ATH:AIA
34 GF Score
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What is Athens International Airport Days Inventory?

Athens International Airport ATH:AIA +0.37% 34 Days Inventory is 19.42 as of Dec. 2025, which is 22% above its 10-year median of 15.97. GuruFocus rates ATH:AIA with a GF Score™ of 34/100. The stock has 6 warning signs investors should review. Among 800 Transportation companies, Athens International Airport ranks worse than 57.5% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Athens International Airport's Average Total Inventories for the six months ended in Dec. 2025 was €5.9 Mil. Athens International Airport's Cost of Goods Sold for the six months ended in Dec. 2025 was €55.4 Mil. Hence, Athens International Airport's Days Inventory for the six months ended in Dec. 2025 was 19.42.

The historical rank and industry rank for Athens International Airport's Days Inventory or its related term are showing as below:

ATH:AIA' s Days Inventory Range Over the Past 10 Years
Min: 14.85   Med: 15.97   Max: 19.13
Current: 14.85

During the past 7 years, Athens International Airport's highest Days Inventory was 19.13. The lowest was 14.85. And the median was 15.97.

ATH:AIA's Days Inventory is ranked worse than
57.5% of 800 companies
in the Transportation industry
Industry Median: 12.35 vs ATH:AIA: 14.85

Athens International Airport's Days Inventory increased from Dec. 2024 (14.86) to Dec. 2025 (19.42). It might indicate that Athens International Airport's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Athens International Airport's Inventory Turnover for the six months ended in Dec. 2025 was 9.40.

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. Athens International Airport's Inventory-to-Revenue for the six months ended in Dec. 2025 was 0.02.


Athens International Airport  (ATH:AIA) 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.

Athens International Airport'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.

Athens International Airport'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.


Athens International Airport Days Inventory Related Terms


Athens International Airport Days Inventory Historical Data

* Premium members only.

The historical data trend for Athens International Airport'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.

Athens International Airport Days Inventory Chart

Athens International Airport Annual Data
Trend Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial 18.60 15.97 15.08 14.97 14.91

Athens International Airport Semi-Annual Data
Dec19 Dec20 Dec21 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Days Inventory Get a 7-Day Free Trial Premium Member Only Premium Member Only 15.04 15.42 14.86 11.99 19.42

ATH:AIA vs JOBY: Days Inventory Comparison

For the Airports & Air Services subindustry, Athens International Airport'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.


Athens International Airport Days Inventory vs Transportation Industry

For the Transportation industry and Industrials sector, Athens International Airport's Days Inventory distribution charts can be found below:

* The bar in red indicates where Athens International Airport's Days Inventory falls into.


ATH:AIA
34GF Score
Athens International Airport SA ATH:AIA
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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Athens International Airport Days Inventory Calculation

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

Athens International Airport'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
=( (5.911 + 5.928) / 2 ) / 144.959*365
=5.9195 / 144.959*365
=14.91

Athens International Airport'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
=( (5.856 + 5.928) / 2 ) / 55.367*365 / 2
=5.892 / 55.367*365 / 2
=19.42

* 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 19.42 mean?
Athens International Airport (ATH:AIA) has a Days Inventory of 19.42 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Athens International Airport and its competitors. This is 22% above median its historical median of 15.97. Over the past decade, Athens International Airport's Days Inventory has ranged from 14.85 to 19.13. According to the industry distribution chart, Athens International Airport ranks #460 out of 800 companies in the Transportation industry, placing it in the top 57.5%.
Is Athens International Airport's Days Inventory too high?
Athens International Airport's current Days Inventory of 19.42 is 22% above median its 10-year median of 15.97. Over the past 10 years, this metric has ranged from a low of 14.85 to a high of 19.13. The Transportation industry median Days Inventory is 12.35. Athens International Airport's value of 19.42 is 57.2% above this industry median. Based on the distribution chart, Athens International Airport ranks #460 out of 800 companies in the Transportation industry, which is below the industry midpoint. Overall, Athens International Airport has a GF Score™ of 34/100, reflecting its overall financial health beyond just this single metric.
How does Athens International Airport's Days Inventory compare to JOBY?
According to the Transportation industry distribution chart, Athens International Airport ranks #460 out of 800 companies for Days Inventory. This places Athens International Airport in the lower half of its industry. The industry median Days Inventory is 12.35. Athens International Airport's value of 19.42 is 57.2% above this benchmark. Historically, Athens International Airport's own Days Inventory has ranged from 14.85 to 19.13 over the past decade. While the company's 10-year median is 15.97 vs. the industry median of 12.35, Athens International Airport 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 a Transportation company?
The median Days Inventory among Transportation companies is 12.35, based on 800 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. Athens International Airport's current Days Inventory of 19.42 is 57.2% 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 Athens International Airport and its competitors. For the Transportation industry, the median Days Inventory is 12.35 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Athens International Airport's current Days Inventory is 19.42, which is 22% above median its own 10-year median of 15.97. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Athens International Airport stock overvalued right now?
Athens International Airport (ATH:AIA) has a current Days Inventory of 19.42. The current Days Inventory is 19.42, which is 22% above median its 10-year median of 15.97 and 57.2% above the Transportation industry median of 12.35. Athens International Airport's overall GF Score™ is 34/100 with 6 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 Athens International Airport (ATH:AIA), the current Days Inventory is 19.42 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.

Athens International Airport Business Description

Other Exchanges 9O1:Germany
Address Athens International Airport, El. Venizelos SA, SPATA, Attica, Athens, GRC, 19019
Athens International Airport SA is engaged in the design, financing, construction, completion, commissioning, maintenance, operation, management, and development of the Athens International Airport . The company's operating segments are: Air activities and Non-air activities. The maximum revenue is generated from its Air activities segment, which includes the provision at the Airport of any facilities like the landing, parking, or taking-off of aircraft; the servicing of aircraft; and the handling of passengers, among others. The Non-air activities segment represents revenues from non-air activities, mainly consisting of car parking, food and beverage, duty-free, retail shops, building/office rental, and other commercial services.
34GF Score

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