The WACC of TransDigm Group Inc (TDG) is 8.8%.
| Range | Selected | |
| Cost of equity | 8.60% - 11.90% | 10.25% |
| Tax rate | 18.20% - 22.80% | 20.50% |
| Cost of debt | 5.50% - 6.10% | 5.80% |
| WACC | 7.5% - 10.0% | 8.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 1.03 | 1.25 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.60% | 11.90% |
| Tax rate | 18.20% | 22.80% |
| Debt/Equity ratio | 0.35 | 0.35 |
| Cost of debt | 5.50% | 6.10% |
| After-tax WACC | 7.5% | 10.0% |
| Selected WACC | 8.8% | |