Aon (FRA:4VK) Market Cap: €67,040 Mil (As of Jul. 06, 2026)


FRA:4VK Aon PLC FRA:4VK
92 GF Score
Price €310.70
GF Value €345.55
Valuation Modestly Undervalued
! 2 Warning Signs
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What is Aon Market Cap?

Aon FRA:4VK +3.43% 92 Market Cap is €67,040 Mil as of Jul. 06, 2026. GuruFocus rates FRA:4VK with a GF Score™ of 92/100 and a GF Value™ of €345.55 (Modestly Undervalued). The stock has 2 warning signs investors should review. Among 523 Insurance companies, Aon ranks better than 97.71% 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). Aon's share price for the quarter that ended in Mar. 2026 was €280.1. Aon's Shares Outstanding (EOP) for the quarter that ended in Mar. 2026 was 214 Mil. Therefore, Aon's market cap for the quarter that ended in Mar. 2026 was €59,829 Mil.

Aon's quarterly market cap declined from Sep. 2025 (€64,732 Mil) to Dec. 2025 (€64,693 Mil) and declined from Dec. 2025 (€64,693 Mil) to Mar. 2026 (€59,829 Mil).

Aon's annual market cap increased from Dec. 2023 (€51,636 Mil) to Dec. 2024 (€74,304 Mil) but then declined from Dec. 2024 (€74,304 Mil) to Dec. 2025 (€64,693 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. Aon's Enterprise Value for Today is €79,512 Mil.


Aon  (FRA:4VK) 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.


Aon Market Cap Related Terms


Aon Market Cap Historical Data

* Premium members only.

The historical data trend for Aon'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.

Aon Market Cap Chart

Aon Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Market Cap
Get a 7-Day Free Trial Premium Member Only Premium Member Only 56,707.20 57,943.34 51,636.00 74,304.00 64,693.20

Aon Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 78,271.42 64,710.00 64,732.16 64,693.20 59,829.36

FRA:4VK vs MRSH, AJG, WTW: Market Cap Comparison

For the Insurance Brokers subindustry, Aon'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.


Aon Market Cap vs Insurance Industry

For the Insurance industry and Financial Services sector, Aon's Market Cap distribution charts can be found below:

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


FRA:4VK
92GF Score
Aon PLC FRA:4VK
Market Cap is just one metric. See GF Score™, valuation, warning signs, and more.
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Aon 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.

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

Market Cap (A: Dec. 2025 )=Share Price (A: Dec. 2025 )*Shares Outstanding (EOP) (A: Dec. 2025 )
=€301.6*214.500
=€64,693

Aon's Market Cap for the quarter that ended in Mar. 2026 is calculated as

Market Cap (Q: Mar. 2026 )=Share Price (Q: Mar. 2026 )*Shares Outstanding (EOP) (Q: Mar. 2026 )
=€280.1*213.600
=€59,829

* 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 €67,040 Mil mean?
Aon (FRA:4VK) has a Market Cap of €67,040 Mil as of Jul. 06, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Aon and its competitors. According to the industry distribution chart, Aon ranks #12 out of 523 companies in the Insurance industry, placing it in the top 2.3%.
Is Aon's Market Cap too high?
Aon's current Market Cap is €67,040 Mil. Based on the distribution chart, Aon ranks #12 out of 523 companies in the Insurance industry, which is in the top quartile — a strong position relative to peers. Overall, Aon has a GF Score™ of 92/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Aon's Market Cap compare to MRSH and AJG?
According to the Insurance industry distribution chart, Aon ranks #12 out of 523 companies for Market Cap. This places Aon in the top 2% of its industry — outperforming the majority of peers. The industry median Market Cap is 679.80. 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 an Insurance company?
The median Market Cap among Insurance companies is 679.80, based on 523 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 Aon and its competitors. For the Insurance industry, the median Market Cap is 679.80 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aon's current Market Cap is €67,040 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aon stock overvalued right now?
Based on GuruFocus' analysis, Aon (FRA:4VK) is currently considered Modestly Undervalued. The stock's GF Value™ is €345.55, compared to a current price of €310.70 — trading 10.1% below its estimated fair value. The current Market Cap is €67,040 Mil. Aon's overall GF Score™ is 92/100 with 2 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 Aon (FRA:4VK), the current Market Cap is €67,040 Mil as of Jul. 06, 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 Aon (FRA:4VK) Overvalued in 2026?

Based on GuruFocus' analysis, Aon stock appears to be undervalued. The current stock price of €310.70 is trading 10.1% below its estimated GF Value™ of €345.55. GuruFocus considers Aon to be Modestly Undervalued.

Key valuation signals for FRA:4VK:

  • Market Cap: €67,040 Mil
  • GF Value™: €345.55 vs. price of €310.70 (10.1% below fair value)
  • GF Score™: 92/100 with 2 warning signs

No single metric tells the full story. See the FRA:4VK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Aon Business Description

Address 15 George\'s Quay, Dublin 2, Dublin, IRL, D02 VR98
Aon is a leading global provider of insurance and reinsurance brokerage and human resources solutions. Its operations are tilted toward its brokerage operations. Headquartered in London, Aon has about 60,000 employees and operations in over 120 countries.
92GF Score

Get the complete analysis for FRA:4VK

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

€310.70
Price
€345.55
GF Value