The WACC of Aspen Technology Inc (AZPN) is 8.5%.
| Range | Selected | |
| Cost of equity | 10.60% - 14.70% | 12.65% |
| Tax rate | 17.40% - 23.90% | 20.65% |
| Cost of debt | 4.00% - 7.00% | 5.50% |
| WACC | 6.9% - 10.0% | 8.5% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 1.46 | 1.75 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 10.60% | 14.70% |
| Tax rate | 17.40% | 23.90% |
| Debt/Equity ratio | 1 | 1 |
| Cost of debt | 4.00% | 7.00% |
| After-tax WACC | 6.9% | 10.0% |
| Selected WACC | 8.5% | |