The WACC of International Bancshares Corp (IBOC) is 7.8%.
| Range | Selected | |
| Cost of equity | 7.10% - 9.60% | 8.35% |
| Tax rate | 21.20% - 21.30% | 21.25% |
| Cost of debt | 5.00% - 5.00% | 5.00% |
| WACC | 6.7% - 8.9% | 7.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.7 | 0.84 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.10% | 9.60% |
| Tax rate | 21.20% | 21.30% |
| Debt/Equity ratio | 0.14 | 0.14 |
| Cost of debt | 5.00% | 5.00% |
| After-tax WACC | 6.7% | 8.9% |
| Selected WACC | 7.8% | |