The WACC of Alstom SA (ALO.PA) is 8.3%.
| Range | Selected | |
| Cost of equity | 9.40% - 11.70% | 10.55% |
| Tax rate | 17.20% - 21.30% | 19.25% |
| Cost of debt | 5.00% - 5.00% | 5.00% |
| WACC | 7.5% - 9.0% | 8.3% |
| Category | Low | High |
| Long-term bond rate | 3.0% | 3.5% |
| Equity market risk premium | 5.8% | 6.8% |
| Adjusted beta | 1.1 | 1.14 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 9.40% | 11.70% |
| Tax rate | 17.20% | 21.30% |
| Debt/Equity ratio | 0.55 | 0.55 |
| Cost of debt | 5.00% | 5.00% |
| After-tax WACC | 7.5% | 9.0% |
| Selected WACC | 8.3% | |