The WACC of Illumina Inc (ILMN) is 7.8%.
| Range | Selected | |
| Cost of equity | 6.70% - 9.30% | 8.00% |
| Tax rate | 8.40% - 12.40% | 10.40% |
| Cost of debt | 4.00% - 7.00% | 5.50% |
| WACC | 6.5% - 9.1% | 7.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.61 | 0.8 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.70% | 9.30% |
| Tax rate | 8.40% | 12.40% |
| Debt/Equity ratio | 0.07 | 0.07 |
| Cost of debt | 4.00% | 7.00% |
| After-tax WACC | 6.5% | 9.1% |
| Selected WACC | 7.8% | |