The WACC of Westinghouse Air Brake Technologies Corp (WAB) is 8.4%.
| Range | Selected | |
| Cost of equity | 7.60% - 10.50% | 9.05% |
| Tax rate | 24.70% - 25.40% | 25.05% |
| Cost of debt | 4.40% - 5.20% | 4.80% |
| WACC | 7.0% - 9.7% | 8.4% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.8 | 1.01 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.60% | 10.50% |
| Tax rate | 24.70% | 25.40% |
| Debt/Equity ratio | 0.14 | 0.14 |
| Cost of debt | 4.40% | 5.20% |
| After-tax WACC | 7.0% | 9.7% |
| Selected WACC | 8.4% | |