The WACC of W W Grainger Inc (GWW) is 9.0%.
| Range | Selected | |
| Cost of equity | 8.20% - 10.30% | 9.25% |
| Tax rate | 24.50% - 24.90% | 24.70% |
| Cost of debt | 4.10% - 4.60% | 4.35% |
| WACC | 8.0% - 10.0% | 9.0% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.94 | 0.97 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.20% | 10.30% |
| Tax rate | 24.50% | 24.90% |
| Debt/Equity ratio | 0.05 | 0.05 |
| Cost of debt | 4.10% | 4.60% |
| After-tax WACC | 8.0% | 10.0% |
| Selected WACC | 9.0% | |