The WACC of iRobot Corp (IRBT) is 6.8%.
| Range | Selected | |
| Cost of equity | 5.90% - 8.50% | 7.20% |
| Tax rate | 8.60% - 11.10% | 9.85% |
| Cost of debt | 7.00% - 7.00% | 7.00% |
| WACC | 6.1% - 7.6% | 6.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.43 | 0.65 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 5.90% | 8.50% |
| Tax rate | 8.60% | 11.10% |
| Debt/Equity ratio | 0.68 | 0.68 |
| Cost of debt | 7.00% | 7.00% |
| After-tax WACC | 6.1% | 7.6% |
| Selected WACC | 6.8% | |