Arthur J. Gallagher & Co. (AJG)
Arthur J. Gallagher Market Cap: 65.97B for Jan. 20, 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
| Brown & Brown, Inc. | 27.14B |
| Marsh & McLennan Cos., Inc. | 88.71B |
| Willis Towers Watson Plc | 31.33B |
| Goosehead Insurance, Inc. | 1.784B |
| Baldwin Insurance Group, Inc. | 1.882B |
Market Cap Related Metrics
| PE Ratio | 40.87 |
| PS Ratio | 4.985 |
| PEG Ratio | 2.095 |
| Price to Book Value | 2.843 |
| Price to Free Cash Flow | 36.75 |
| Price | 256.90 |
| Earnings Yield | 2.45% |
| PEGY Ratio | 1.992 |
| Operating PE Ratio | 24.22 |
| Normalized PE Ratio | 39.48 |