Diageo (FRA:GUI) Market Cap: €40,754 Mil (As of Jun. 25, 2026)


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 Market Cap?

Diageo FRA:GUI +1.59% 67 Market Cap is €40,754 Mil as of Jun. 25, 2026. 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 217 Beverages - Alcoholic companies, Diageo ranks better than 97.24% on this metric.

Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). Diageo's share price for the quarter that ended in Dec. 2025 was €18.2. Diageo's Shares Outstanding (EOP) for the quarter that ended in Dec. 2025 was 2,223 Mil. Therefore, Diageo's market cap for the quarter that ended in Dec. 2025 was €40,466 Mil.

Diageo's quarterly market cap declined from Dec. 2024 (€67,720 Mil) to Jun. 2025 (€47,558 Mil) and declined from Jun. 2025 (€47,558 Mil) to Dec. 2025 (€40,466 Mil).

Diageo's annual market cap declined from Jun. 2023 (€89,042 Mil) to Jun. 2024 (€65,850 Mil) and declined from Jun. 2024 (€65,850 Mil) to Jun. 2025 (€47,558 Mil).

Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. Diageo's Enterprise Value for Today is €60,863 Mil.


Diageo  (FRA:GUI) Market Cap Explanation

Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the company’s debt. The real price you pay is the Enterprise Value.

Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.


Diageo Market Cap Related Terms


Diageo Market Cap Historical Data

* Premium members only.

The historical data trend for Diageo's Market Cap 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 Market Cap Chart

Diageo Annual Data
Trend Jun16 Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25
Market Cap
Get a 7-Day Free Trial Premium Member Only Premium Member Only 95,507.36 93,439.00 89,041.92 65,849.59 47,557.78

Diageo Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Market Cap 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 73,909.52 65,849.59 67,720.23 47,557.78 40,466.35

FRA:GUI vs BF.B: Market Cap Comparison

For the Beverages - Wineries & Distilleries subindustry, Diageo's Market Cap, along with its competitors' market caps and Market Cap 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 Market Cap vs Beverages - Alcoholic Industry

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

* The bar in red indicates where Diageo's Market Cap falls into.


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

Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.

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

Market Cap (A: Jun. 2025 )=Share Price (A: Jun. 2025 )*Shares Outstanding (EOP) (A: Jun. 2025 )
=€21.4*2222.326
=€47,558

Diageo's Market Cap for the quarter that ended in Dec. 2025 is calculated as

Market Cap (Q: Dec. 2025 )=Share Price (Q: Dec. 2025 )*Shares Outstanding (EOP) (Q: Dec. 2025 )
=€18.2*2223.426
=€40,466

* 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 Market Cap →
What does a Market Cap of €40,754 Mil mean?
Diageo (FRA:GUI) has a Market Cap of €40,754 Mil as of Jun. 25, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Diageo and its competitors. According to the industry distribution chart, Diageo ranks #6 out of 217 companies in the Beverages - Alcoholic industry, placing it in the top 2.8%.
Is Diageo's Market Cap too high?
Diageo's current Market Cap is €40,754 Mil. Based on the distribution chart, Diageo ranks #6 out of 217 companies in the Beverages - Alcoholic industry, which is in the top quartile — a strong position relative to peers. 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 Market Cap compare to BF.B?
According to the Beverages - Alcoholic industry distribution chart, Diageo ranks #6 out of 217 companies for Market Cap. This places Diageo in the top 3% of its industry — outperforming the majority of peers. The industry median Market Cap is 242.15. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for a Beverages - Alcoholic company?
The median Market Cap among Beverages - Alcoholic companies is 242.15, based on 217 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap 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 Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Diageo and its competitors. For the Beverages - Alcoholic industry, the median Market Cap is 242.15 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diageo's current Market Cap is €40,754 Mil. 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 Market Cap is €40,754 Mil. 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 Market Cap calculated?
Market Cap is calculated from a company's financial statements. For Diageo (FRA:GUI), the current Market Cap is €40,754 Mil as of Jun. 25, 2026. 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:

  • Market Cap: €40,754 Mil
  • GF Value™: €27.76 vs. price of €18.19 (34.5% below fair value)
  • GF Score™: 67/100 with 5 warning signs

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

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

€18.19
Price
€27.76
GF Value