Aon Plc (AON)
303.52
-3.28
(-1.07%)
USD |
NYSE |
Oct 23, 16:00
303.48
-0.04
(-0.01%)
After-Hours: 20:00
Aon Market Cap : 64.35B for Oct. 23, 2026
Market Cap Chart
Historical Market Cap Data
| Date | Value |
|---|---|
| October 23, 2026 | 64.35B |
| October 22, 2026 | 65.04B |
| October 21, 2026 | 62.40B |
| October 20, 2026 | 62.90B |
| October 19, 2026 | 61.42B |
| October 16, 2026 | 62.02B |
| October 15, 2026 | 60.80B |
| October 14, 2026 | 58.37B |
| October 13, 2026 | 58.24B |
| October 12, 2026 | 58.25B |
| October 09, 2026 | 57.98B |
| October 08, 2026 | 58.75B |
| October 07, 2026 | 57.34B |
| October 06, 2026 | 58.09B |
| October 05, 2026 | 57.67B |
| October 02, 2026 | 57.12B |
| October 01, 2026 | 58.50B |
| September 30, 2026 | 58.68B |
| September 29, 2026 | 58.49B |
| September 28, 2026 | 57.69B |
| September 25, 2026 | 58.93B |
| September 24, 2026 | 58.53B |
| September 23, 2026 | 59.70B |
| September 22, 2026 | 60.65B |
| September 21, 2026 | 61.65B |
| Date | Value |
|---|---|
| September 18, 2026 | 62.68B |
| September 17, 2026 | 62.76B |
| September 16, 2026 | 63.72B |
| September 15, 2026 | 64.59B |
| September 14, 2026 | 66.05B |
| September 11, 2026 | 64.17B |
| September 10, 2026 | 65.25B |
| September 09, 2026 | 64.59B |
| September 08, 2026 | 66.95B |
| September 04, 2026 | 68.50B |
| September 03, 2026 | 69.32B |
| September 02, 2026 | 70.15B |
| September 01, 2026 | 69.18B |
| August 31, 2026 | 68.16B |
| August 28, 2026 | 75.34B |
| August 27, 2026 | 74.11B |
| August 26, 2026 | 75.04B |
| August 25, 2026 | 75.22B |
| August 24, 2026 | 76.13B |
| August 21, 2026 | 75.28B |
| August 20, 2026 | 74.61B |
| August 19, 2026 | 73.87B |
| August 18, 2026 | 72.76B |
| August 17, 2026 | 73.61B |
| August 14, 2026 | 75.44B |
Market Capitalization Definition
Market Capitalization measures the total value of a company based on their stock price multiplied by the shares outstanding. This metric is important because it gives you an idea of the size of a company, and how the size has changed over time. When studying companies from a relative basis, it would make sense to compare companies that have a similar market capitalization because factors like market share, economies of scale, and business models would also be similar.
Market Cap Range, Past 5 Years
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Minimum
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Maximum
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Average
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Median
Market Cap Benchmarks
| Arthur J. Gallagher & Co. | 68.70B |
| Brown & Brown, Inc. | 24.08B |
| Willis Towers Watson Plc | 30.23B |
| The Baldwin Insurance Group, Inc. | 3.080B |
| Marsh & McLennan Cos., Inc. | 93.88B |
Market Cap Related Metrics
| PE Ratio | 16.74 |
| PS Ratio | 3.724 |
| PEG Ratio | 0.3228 |
| Price to Book Value | 6.704 |
| Price to Free Cash Flow | 20.15 |
| Price | 303.52 |
| Earnings Yield | 5.98% |
| PEGY Ratio | 0.3165 |
| Operating PE Ratio | 13.08 |
| Normalized PE Ratio | 15.75 |