Aon plc Market Cap

Aon plc has a market cap or net worth of $74.20 billion as of December 5, 2025. Its market cap has decreased by -9.51% in one year.

Market Cap

74.20B

Enterprise Value

90.65B

1-Year Change

-9.51%

Ranking

#204

Market Cap Chart

Since December 1, 1998, Aon plc's market cap has increased from $9.85B to $74.20B, an increase of 652.92%. That is a compound annual growth rate of 7.75%.

Market Cap History

Date	Market Cap	% Change
Dec 5, 2025	74.20B	-4.48%
Dec 31, 2024	77.67B	33.31%
Dec 29, 2023	58.27B	-6.15%
Dec 30, 2022	62.08B	-6.25%
Dec 31, 2021	66.22B	37.11%
Dec 31, 2020	48.30B	-0.96%
Dec 31, 2019	48.77B	39.30%
Dec 31, 2018	35.01B	4.55%
Dec 29, 2017	33.49B	14.12%
Dec 30, 2016	29.34B	16.56%
Dec 31, 2015	25.17B	-6.90%
Dec 31, 2014	27.04B	7.07%
Dec 31, 2013	25.25B	42.51%
Dec 31, 2012	17.72B	17.13%
Dec 30, 2011	15.13B	21.40%
Dec 31, 2010	12.46B	18.67%
Dec 31, 2009	10.50B	-14.78%
Dec 31, 2008	12.32B	-11.43%
Dec 31, 2007	13.91B	27.14%
Dec 29, 2006	10.94B	-4.87%
Dec 30, 2005	11.50B	52.37%
Dec 31, 2004	7.55B	0.57%
Dec 31, 2003	7.51B	45.60%
Dec 31, 2002	5.16B	-46.08%
Dec 31, 2001	9.56B	9.02%

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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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