The WACC of Open Orphan PLC (ORPH.L) is 8.6%.
| Range | Selected | |
| Cost of equity | 7.60% - 9.80% | 8.70% |
| Tax rate | 19.00% - 19.00% | 19.00% |
| Cost of debt | 5.00% - 5.00% | 5.00% |
| WACC | 7.5% - 9.7% | 8.6% |
| Category | Low | High |
| Long-term bond rate | 4.4% | 4.9% |
| Equity market risk premium | 6.4% | 7.4% |
| Adjusted beta | 0.49 | 0.59 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.60% | 9.80% |
| Tax rate | 19.00% | 19.00% |
| Debt/Equity ratio | 0.02 | 0.02 |
| Cost of debt | 5.00% | 5.00% |
| After-tax WACC | 7.5% | 9.7% |
| Selected WACC | 8.6% | |