The WACC of Alnylam Pharmaceuticals Inc (ALNY) is 8.4%.
| Range | Selected | |
| Cost of equity | 7.20% - 9.60% | 8.40% |
| Tax rate | 0.20% - 0.30% | 0.25% |
| Cost of debt | 7.00% - 7.00% | 7.00% |
| WACC | 7.2% - 9.5% | 8.4% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.73 | 0.84 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.20% | 9.60% |
| Tax rate | 0.20% | 0.30% |
| Debt/Equity ratio | 0.03 | 0.03 |
| Cost of debt | 7.00% | 7.00% |
| After-tax WACC | 7.2% | 9.5% |
| Selected WACC | 8.4% | |