The WACC of TransDigm Group Inc (TDG) is 7.4%.
| Range | Selected | |
| Cost of equity | 7.10% - 9.10% | 8.10% |
| Tax rate | 17.20% - 21.80% | 19.50% |
| Cost of debt | 5.40% - 6.10% | 5.75% |
| WACC | 6.6% - 8.2% | 7.4% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.71 | 0.76 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.10% | 9.10% |
| Tax rate | 17.20% | 21.80% |
| Debt/Equity ratio | 0.26 | 0.26 |
| Cost of debt | 5.40% | 6.10% |
| After-tax WACC | 6.6% | 8.2% |
| Selected WACC | 7.4% | |