The WACC of Ambac Financial Group Inc (AMBC) is 7.7%.
| Range | Selected | |
| Cost of equity | 7.20% - 10.80% | 9.00% |
| Tax rate | 1.20% - 2.60% | 1.90% |
| Cost of debt | 5.00% - 5.00% | 5.00% |
| WACC | 6.5% - 8.8% | 7.7% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.73 | 1.06 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.20% | 10.80% |
| Tax rate | 1.20% | 2.60% |
| Debt/Equity ratio | 0.5 | 0.5 |
| Cost of debt | 5.00% | 5.00% |
| After-tax WACC | 6.5% | 8.8% |
| Selected WACC | 7.7% | |