The WACC of Tidewater Inc (TDW) is 8.5%.
| Range | Selected | |
| Cost of equity | 8.00% - 10.30% | 9.15% |
| Tax rate | 16.50% - 27.10% | 21.80% |
| Cost of debt | 5.60% - 9.90% | 7.75% |
| WACC | 7.3% - 9.7% | 8.5% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.9 | 0.97 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.00% | 10.30% |
| Tax rate | 16.50% | 27.10% |
| Debt/Equity ratio | 0.25 | 0.25 |
| Cost of debt | 5.60% | 9.90% |
| After-tax WACC | 7.3% | 9.7% |
| Selected WACC | 8.5% | |