Aon plc Market Cap

Aon plc has a market cap or net worth of 398.51 billion as of November 13, 2025. Its market cap has decreased by -13.19% in one year.

Market Cap

398.51B

Enterprise Value

487.02B

Revenue

90.75B

Ranking

n/a

PE Ratio

27.51

Stock Price

458.69

Market Cap Chart

Since June 2, 1980, Aon plc's market cap has increased from 491.35M to 398.51B, an increase of 81,005.85%. That is a compound annual growth rate of 15.87%.

Market Cap History

Date	Market Cap	% Change
Nov 12, 2025	398.51B	-17.05%
Dec 31, 2024	480.41B	69.92%
Dec 29, 2023	282.73B	-13.86%
Dec 30, 2022	328.22B	-11.05%
Dec 31, 2021	368.98B	48.70%
Dec 31, 2020	248.14B	26.58%
Dec 31, 2019	Upgrade Pro	Upgrade Pro
Dec 31, 2018	Upgrade Pro	Upgrade Pro
Dec 29, 2017	Upgrade Pro	Upgrade Pro
Dec 30, 2016	Upgrade Pro	Upgrade Pro
Dec 31, 2015	Upgrade Pro	Upgrade Pro

Market Capitalization

Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.

Formula: Market Cap = Stock Price * Shares Outstanding

Full Definition

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Market Cap Rankings