The WACC of American Superconductor Corp (AMSC) is 7.8%.
| Range | Selected | |
| Cost of equity | 6.80% - 8.80% | 7.80% |
| Tax rate | 2.20% - 3.10% | 2.65% |
| Cost of debt | 5.00% - 5.00% | 5.00% |
| WACC | 6.8% - 8.8% | 7.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.63 | 0.7 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.80% | 8.80% |
| Tax rate | 2.20% | 3.10% |
| Debt/Equity ratio | 0 | 0 |
| Cost of debt | 5.00% | 5.00% |
| After-tax WACC | 6.8% | 8.8% |
| Selected WACC | 7.8% | |