The WACC of Arthur J Gallagher & Co (AJG) is 7.5%.
| Range | Selected | |
| Cost of equity | 6.80% - 9.20% | 8.00% |
| Tax rate | 9.40% - 15.00% | 12.20% |
| Cost of debt | 4.30% - 5.20% | 4.75% |
| WACC | 6.4% - 8.6% | 7.5% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.62 | 0.77 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.80% | 9.20% |
| Tax rate | 9.40% | 15.00% |
| Debt/Equity ratio | 0.13 | 0.13 |
| Cost of debt | 4.30% | 5.20% |
| After-tax WACC | 6.4% | 8.6% |
| Selected WACC | 7.5% | |