The WACC of O'Reilly Automotive Inc (ORLY) is 7.8%.
| Range | Selected | |
| Cost of equity | 7.00% - 9.30% | 8.15% |
| Tax rate | 22.20% - 22.30% | 22.25% |
| Cost of debt | 4.50% - 4.90% | 4.70% |
| WACC | 6.7% - 8.8% | 7.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.69 | 0.79 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.00% | 9.30% |
| Tax rate | 22.20% | 22.30% |
| Debt/Equity ratio | 0.09 | 0.09 |
| Cost of debt | 4.50% | 4.90% |
| After-tax WACC | 6.7% | 8.8% |
| Selected WACC | 7.8% | |