Aon plc (AON)
NYSE: AON · Real-Time Price · USD
348.23
+2.34 (0.68%)
Nov 21, 2025, 1:25 PM EST - Market open

Aon plc Market Cap

Aon plc has a market cap or net worth of $74.85 billion as of November 21, 2025. Its market cap has decreased by -6.13% in one year.

Market Cap
74.85B
Enterprise Value
91.22B
1-Year Change
-6.13%
Ranking
Category
Stock Price
$348.23

Market Cap Chart

Since December 1, 1998, Aon plc's market cap has increased from $9.85B to $74.85B, an increase of 659.53%. That is a compound annual growth rate of 7.80%.

History

DateMarket Cap% Change
Nov 20, 202574.34B-4.29%
Dec 31, 202477.67B33.31%
Dec 29, 202358.27B-6.15%
Dec 30, 202262.08B-6.25%
Dec 31, 202166.22B37.11%
Dec 31, 202048.30B-0.96%
Dec 31, 201948.77B39.30%
Dec 31, 201835.01B4.55%
Dec 29, 201733.49B14.12%
Dec 30, 201629.34B16.56%
Dec 31, 201525.17B-6.90%
Dec 31, 201427.04B7.07%
Dec 31, 201325.25B42.51%
Dec 31, 201217.72B17.13%
Dec 30, 201115.13B21.40%
Dec 31, 201012.46B18.67%
Dec 31, 200910.50B-14.78%
Dec 31, 200812.32B-11.43%
Dec 31, 200713.91B27.14%
Dec 29, 200610.94B-4.87%
Dec 30, 200511.50B52.37%
Dec 31, 20047.55B0.57%
Dec 31, 20037.51B45.60%
Dec 31, 20025.16B-46.08%
Dec 31, 20019.56B9.02%
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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