The WACC of TransDigm Group Inc (TDG) is 9.0%.
| Range | Selected | |
| Cost of equity | 8.60% - 11.60% | 10.10% |
| Tax rate | 17.20% - 21.80% | 19.50% |
| Cost of debt | 5.40% - 7.70% | 6.55% |
| WACC | 7.7% - 10.4% | 9.0% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 1.03 | 1.2 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.60% | 11.60% |
| Tax rate | 17.20% | 21.80% |
| Debt/Equity ratio | 0.29 | 0.29 |
| Cost of debt | 5.40% | 7.70% |
| After-tax WACC | 7.7% | 10.4% |
| Selected WACC | 9.0% | |