The WACC of Spirit AeroSystems Holdings Inc (SPR) is 9.4%.
| Range | Selected | |
| Cost of equity | 10.60% - 15.90% | 13.25% |
| Tax rate | 3.50% - 10.30% | 6.90% |
| Cost of debt | 5.80% - 7.00% | 6.40% |
| WACC | 8.0% - 10.9% | 9.4% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 1.47 | 1.96 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 10.60% | 15.90% |
| Tax rate | 3.50% | 10.30% |
| Debt/Equity ratio | 1.08 | 1.08 |
| Cost of debt | 5.80% | 7.00% |
| After-tax WACC | 8.0% | 10.9% |
| Selected WACC | 9.4% | |