The WACC of State Street Corp (STT) is 8.1%.
| Range | Selected | |
| Cost of equity | 9.70% - 14.00% | 11.85% |
| Tax rate | 16.30% - 16.60% | 16.45% |
| Cost of debt | 5.00% - 5.00% | 5.00% |
| WACC | 7.0% - 9.2% | 8.1% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 1.27 | 1.64 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 9.70% | 14.00% |
| Tax rate | 16.30% | 16.60% |
| Debt/Equity ratio | 0.98 | 0.98 |
| Cost of debt | 5.00% | 5.00% |
| After-tax WACC | 7.0% | 9.2% |
| Selected WACC | 8.1% | |