Aon
AON | NYSE
$332.45
+$11.60 (+3.62%)
Nov 2, 2026, 2:54 PM ET · Market open
Market Cap History History
Annual Market Cap Change Annual Change
| Date | Market Cap | Change | % Change |
|---|---|---|---|
| Oct 30, 2026 | $68.29B | -$8.64B | -11.23% |
| Dec 26, 2025 | $76.93B | -$1.42B | -1.81% |
| Dec 27, 2024 | $78.35B | $19.3B | +32.68% |
| Dec 29, 2023 | $59.05B | -$4.25B | -6.72% |
| Dec 30, 2022 | $63.3B | -$2.61B | -3.96% |
| Dec 31, 2021 | $65.91B | $17.49B | +36.12% |
| Dec 31, 2020 | $48.42B | -$736.04M | -1.50% |
| Dec 27, 2019 | $49.16B | $14.1B | +40.20% |
| Dec 28, 2018 | $35.06B | $812.4M | +2.37% |
| Dec 29, 2017 | $34.25B | $4.42B | +14.80% |
| Dec 30, 2016 | $29.83B | $4.43B | +17.45% |
| Dec 31, 2015 | $25.4B | -$2.74B | -9.72% |
| Dec 26, 2014 | $28.14B | $2.41B | +9.37% |
| Dec 27, 2013 | $25.73B | $7.47B | +40.88% |
| Dec 28, 2012 | $18.26B | $2.56B | +16.27% |
| Dec 30, 2011 | $15.71B | -$14.32M | -0.09% |
| Dec 31, 2010 | $15.72B | $5.14B | +48.61% |
| Dec 31, 2009 | $10.58B | -$1.56B | -12.85% |
| Dec 26, 2008 | $12.14B | -$2.02B | -14.30% |
| Dec 28, 2007 | $14.16B | $2.14B | +17.84% |
| Dec 29, 2006 | $12.02B | n/a | n/a |
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