The WACC of Castle Biosciences Inc (CSTL) is 6.9%.
| Range | Selected | |
| Cost of equity | 5.80% - 8.00% | 6.90% |
| Tax rate | 2.00% - 7.70% | 4.85% |
| Cost of debt | 4.50% - 4.50% | 4.50% |
| WACC | 5.8% - 8.0% | 6.9% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.43 | 0.57 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 5.80% | 8.00% |
| Tax rate | 2.00% | 7.70% |
| Debt/Equity ratio | 0.02 | 0.02 |
| Cost of debt | 4.50% | 4.50% |
| After-tax WACC | 5.8% | 8.0% |
| Selected WACC | 6.9% | |