Diageo (FRA:GUI) Days Inventory: 478.67 (As of Dec. 2025) — 18% Above Median


FRA:GUI Diageo PLC FRA:GUI
67 GF Score
Price €18.19
GF Value €27.76
Valuation Significantly Undervalued
! 5 Warning Signs
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What is Diageo Days Inventory?

Diageo FRA:GUI +1.59% 67 Days Inventory is 478.67 as of Dec. 2025, which is 18% above its 10-year median of 406.92. GuruFocus rates FRA:GUI with a GF Score™ of 67/100 and a GF Value™ of €27.76 (Significantly Undervalued). The stock has 5 warning signs investors should review. Among 204 Beverages - Alcoholic companies, Diageo ranks worse than 73.04% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Diageo's Average Total Inventories for the six months ended in Dec. 2025 was €9,128 Mil. Diageo's Cost of Goods Sold for the six months ended in Dec. 2025 was €3,480 Mil. Hence, Diageo's Days Inventory for the six months ended in Dec. 2025 was 478.67.

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

FRA:GUI' s Days Inventory Range Over the Past 10 Years
Min: 351.85   Med: 406.92   Max: 480.76
Current: 480.76

During the past 13 years, Diageo's highest Days Inventory was 480.76. The lowest was 351.85. And the median was 406.92.

FRA:GUI's Days Inventory is ranked worse than
73.04% of 204 companies
in the Beverages - Alcoholic industry
Industry Median: 166.665 vs FRA:GUI: 480.76

Diageo's Days Inventory increased from Dec. 2024 (419.85) to Dec. 2025 (478.67). It might indicate that Diageo's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Diageo's Inventory Turnover for the six months ended in Dec. 2025 was 0.38.

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. Diageo's Inventory-to-Revenue for the six months ended in Dec. 2025 was 1.02.


Diageo  (FRA:GUI) 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.

Diageo'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.

Diageo'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.


Diageo Days Inventory Related Terms


Diageo Days Inventory Historical Data

* Premium members only.

The historical data trend for Diageo'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.

Diageo Days Inventory Chart

Diageo Annual Data
Trend Jun16 Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 417.93 366.81 406.24 436.65 476.44

Diageo 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 420.77 462.99 419.85 498.19 478.67

FRA:GUI vs BF.B: Days Inventory Comparison

For the Beverages - Wineries & Distilleries subindustry, Diageo'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.


Diageo Days Inventory vs Beverages - Alcoholic Industry

For the Beverages - Alcoholic industry and Consumer Defensive sector, Diageo's Days Inventory distribution charts can be found below:

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


FRA:GUI
67GF Score
Diageo PLC FRA:GUI
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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Diageo Days Inventory Calculation

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

Diageo's Days Inventory for the fiscal year that ended in Jun. 2025 is calculated as

Days Inventory (A: Jun. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Jun. 2024 ) + Total Inventories (A: Jun. 2025 )) / count ) / Cost of Goods Sold (A: Jun. 2025 )*Days in Period
=( (9029.88 + 9240.486) / 2 ) / 6998.424*365
=9135.183 / 6998.424*365
=476.44

Diageo'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
=( (9240.486 + 9014.824) / 2 ) / 3480.05*365 / 2
=9127.655 / 3480.05*365 / 2
=478.67

* 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 478.67 mean?
Diageo (FRA:GUI) has a Days Inventory of 478.67 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Diageo and its competitors. This is 18% above median its historical median of 406.92. Over the past decade, Diageo's Days Inventory has ranged from 351.85 to 480.76. According to the industry distribution chart, Diageo ranks #149 out of 204 companies in the Beverages - Alcoholic industry, placing it in the top 73%.
Is Diageo's Days Inventory too high?
Diageo's current Days Inventory of 478.67 is 18% above median its 10-year median of 406.92. Over the past 10 years, this metric has ranged from a low of 351.85 to a high of 480.76. The Beverages - Alcoholic industry median Days Inventory is 166.67. Diageo's value of 478.67 is 187.2% above this industry median. Based on the distribution chart, Diageo ranks #149 out of 204 companies in the Beverages - Alcoholic industry, which is below the industry midpoint. Overall, Diageo has a GF Score™ of 67/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Diageo's Days Inventory compare to BF.B?
According to the Beverages - Alcoholic industry distribution chart, Diageo ranks #149 out of 204 companies for Days Inventory. This places Diageo in the lower half of its industry. The industry median Days Inventory is 166.67. Diageo's value of 478.67 is 187.2% above this benchmark. Historically, Diageo's own Days Inventory has ranged from 351.85 to 480.76 over the past decade. While the company's 10-year median is 406.92 vs. the industry median of 166.67, Diageo 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 Beverages - Alcoholic company?
The median Days Inventory among Beverages - Alcoholic companies is 166.67, based on 204 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. Diageo's current Days Inventory of 478.67 is 187.2% 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 Diageo and its competitors. For the Beverages - Alcoholic industry, the median Days Inventory is 166.67 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diageo's current Days Inventory is 478.67, which is 18% above median its own 10-year median of 406.92. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diageo stock overvalued right now?
Based on GuruFocus' analysis, Diageo (FRA:GUI) is currently considered Significantly Undervalued. The stock's GF Value™ is €27.76, compared to a current price of €18.19 — trading 34.5% below its estimated fair value. The current Days Inventory is 478.67, which is 18% above median its 10-year median of 406.92 and 187.2% above the Beverages - Alcoholic industry median of 166.67. Diageo's overall GF Score™ is 67/100 with 5 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 Diageo (FRA:GUI), the current Days Inventory is 478.67 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 Diageo (FRA:GUI) Overvalued in 2026?

Based on GuruFocus' analysis, Diageo stock appears to be undervalued. The current stock price of €18.19 is trading 34.5% below its estimated GF Value™ of €27.76. GuruFocus considers Diageo to be Significantly Undervalued.

Key valuation signals for FRA:GUI:

  • Days Inventory: 478.67 (18% above median its 10-year median of 406.92)
  • GF Value™: €27.76 vs. price of €18.19 (34.5% below fair value)
  • GF Score™: 67/100 with 5 warning signs
  • Industry Position: 187.2% above the Beverages - Alcoholic median (#149 of 204)

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


Diageo Business Description

Address 16 Great Marlborough Street, London, GBR, W1F 7HS
Formed in 1997 through the merger of Grand Metropolitan and Guinness, Diageo is the largest distiller globally by sales. Diageo acquired some of the Seagram assets in 2001, which gave it brands such as Captain Morgan rum and Crown Royal Canadian whisky. Since then, mergers and acquisitions have mostly been bolt-on in nature, plugging gaps in the company's product and geographic portfolio.
67GF Score

Get the complete analysis for FRA:GUI

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

€18.19
Price
€27.76
GF Value