The WACC of Federal Signal Corp (FSS) is 9.4%.
| Range | Selected | |
| Cost of equity | 8.40% - 11.00% | 9.70% |
| Tax rate | 21.20% - 22.10% | 21.65% |
| Cost of debt | 4.00% - 4.60% | 4.30% |
| WACC | 8.1% - 10.7% | 9.4% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.98 | 1.1 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.40% | 11.00% |
| Tax rate | 21.20% | 22.10% |
| Debt/Equity ratio | 0.05 | 0.05 |
| Cost of debt | 4.00% | 4.60% |
| After-tax WACC | 8.1% | 10.7% |
| Selected WACC | 9.4% | |