The WACC of Westlake Chemical Corp (WLK) is 7.8%.
| Range | Selected | |
| Cost of equity | 7.80% - 10.60% | 9.20% |
| Tax rate | 20.80% - 22.30% | 21.55% |
| Cost of debt | 4.00% - 4.90% | 4.45% |
| WACC | 6.7% - 9.0% | 7.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.85 | 1.02 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.80% | 10.60% |
| Tax rate | 20.80% | 22.30% |
| Debt/Equity ratio | 0.31 | 0.31 |
| Cost of debt | 4.00% | 4.90% |
| After-tax WACC | 6.7% | 9.0% |
| Selected WACC | 7.8% | |