Aon Plc (AON)
Aon Market Cap : 74.86B for Feb. 5, 2026
Market Cap Chart
Historical Data
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
Market Cap Benchmarks
| American International Group, Inc. | 41.08B |
| Brown & Brown, Inc. | 24.71B |
| Assured Guaranty Ltd. | 4.071B |
| The Allstate Corp. | 56.25B |
| Willis Towers Watson Plc | 31.86B |
Market Cap Related Metrics
| PE Ratio | 20.50 |
| PS Ratio | 4.382 |
| PEG Ratio | 0.5941 |
| Price to Book Value | 8.004 |
| Price to Free Cash Flow | 23.54 |
| Price | 348.98 |
| Earnings Yield | 4.88% |
| PEGY Ratio | 0.5799 |
| Operating PE Ratio | 15.73 |