The WACC of Power Integrations Inc (POWI) is 8.0%.
| Range | Selected | |
| Cost of equity | 9.70% - 13.20% | 11.45% |
| Tax rate | 6.80% - 9.30% | 8.05% |
| Cost of debt | 5.00% - 5.00% | 5.00% |
| WACC | 7.2% - 8.9% | 8.0% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 1.27 | 1.48 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 9.70% | 13.20% |
| Tax rate | 6.80% | 9.30% |
| Debt/Equity ratio | 1 | 1 |
| Cost of debt | 5.00% | 5.00% |
| After-tax WACC | 7.2% | 8.9% |
| Selected WACC | 8.0% | |