Aon plc (AON)

Aon plc Market Cap

Aon plc has a market cap or net worth of $67.56 billion as of February 23, 2026. Its market cap has decreased by -18.31% in one year.

• Market Cap: 67.56B
• Enterprise Value: 81.01B
• 1-Year Change: -18.31%
• Ranking: #236
• Category: Large-Cap
• Stock Price: $315.31

Market Cap Chart

Since December 1, 1998, Aon plc's market cap has increased from $9.85B to $67.56B, an increase of 585.55%. That is a compound annual growth rate of 7.32%.

Market Cap History

Date	Market Cap	% Change
Feb 20, 2026	69.65B	-8.17%
Dec 31, 2025	75.85B	-2.35%
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%

View and export this data all the way back to 1998. Sign Up Today.

Related Stocks

Company	Market Cap
Marsh & McLennan Companies	86.81B
Arthur J. Gallagher & Co.	55.66B
Willis Towers Watson	28.70B
Brown & Brown	23.69B
Erie Indemnity Company	14.28B
Neptune Insurance Holdings	2.93B
CorVel	2.53B
The Baldwin Insurance Group	2.36B