Aon plc Market Cap

Aon plc has a market cap or net worth of 55.69 billion as of December 5, 2025. Its market cap has decreased by -13.92% in one year.

Market Cap

55.69B

Enterprise Value

68.23B

Revenue

12.67B

Ranking

n/a

PE Ratio

27.54

Stock Price

343.23

Market Cap Chart

Since June 2, 1980, Aon plc's market cap has increased from 210.29M to 55.69B, an increase of 26,381.22%. That is a compound annual growth rate of 13.03%.

Market Cap History

Date	Market Cap	% Change
Dec 5, 2025	55.69B	-10.24%
Dec 31, 2024	62.04B	35.63%
Dec 29, 2023	45.74B	-11.22%
Dec 30, 2022	51.53B	5.36%
Dec 31, 2021	48.91B	39.75%
Dec 31, 2020	35.00B	-4.96%
Dec 31, 2019	Pro	Pro
Dec 31, 2018	Pro	Pro
Dec 29, 2017	Pro	Pro
Dec 30, 2016	Pro	Pro
Dec 31, 2015	Pro	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