The WACC of Westlake Chemical Corp (WLK) is 7.7%.
| Range | Selected | |
| Cost of equity | 7.40% - 10.20% | 8.80% |
| Tax rate | 20.80% - 22.30% | 21.55% |
| Cost of debt | 4.00% - 4.90% | 4.45% |
| 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 | 0.77 | 0.95 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.40% | 10.20% |
| Tax rate | 20.80% | 22.30% |
| Debt/Equity ratio | 0.28 | 0.28 |
| Cost of debt | 4.00% | 4.90% |
| After-tax WACC | 6.5% | 8.8% |
| Selected WACC | 7.7% | |