The WACC of Kirby Corp (KEX) is 7.5%.
| Range | Selected | |
| Cost of equity | 7.00% - 9.40% | 8.20% |
| Tax rate | 24.50% - 25.00% | 24.75% |
| Cost of debt | 4.00% - 4.80% | 4.40% |
| WACC | 6.5% - 8.6% | 7.5% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.69 | 0.8 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.00% | 9.40% |
| Tax rate | 24.50% | 25.00% |
| Debt/Equity ratio | 0.16 | 0.16 |
| Cost of debt | 4.00% | 4.80% |
| After-tax WACC | 6.5% | 8.6% |
| Selected WACC | 7.5% | |