The WACC of State Street Corp (STT) is 6.9%.
| Range | Selected | |
| Cost of equity | 8.10% - 11.00% | 9.55% |
| Tax rate | 16.30% - 16.60% | 16.45% |
| Cost of debt | 5.00% - 5.00% | 5.00% |
| WACC | 6.2% - 7.7% | 6.9% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.93 | 1.1 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.10% | 11.00% |
| Tax rate | 16.30% | 16.60% |
| Debt/Equity ratio | 0.96 | 0.96 |
| Cost of debt | 5.00% | 5.00% |
| After-tax WACC | 6.2% | 7.7% |
| Selected WACC | 6.9% | |