The WACC of Iron Mountain Inc (IRM) is 6.5%.
| Range | Selected | |
| Cost of equity | 5.70% - 7.90% | 6.80% |
| Tax rate | 14.90% - 17.90% | 16.40% |
| Cost of debt | 4.90% - 9.10% | 7.00% |
| WACC | 5.3% - 7.8% | 6.5% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.41 | 0.54 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 5.70% | 7.90% |
| Tax rate | 14.90% | 17.90% |
| Debt/Equity ratio | 0.36 | 0.36 |
| Cost of debt | 4.90% | 9.10% |
| After-tax WACC | 5.3% | 7.8% |
| Selected WACC | 6.5% | |