The WACC of Perspecta Inc (PRSP) is 7.5%.
| Range | Selected | |
| Cost of equity | 6.80% - 9.00% | 7.90% | 
| Tax rate | 37.10% - 38.30% | 37.70% | 
| Cost of debt | 9.10% - 12.30% | 10.70% | 
| WACC | 6.4% - 8.5% | 7.5% | 
| Category | Low | High | 
| Long-term bond rate | 3.2% | 3.7% | 
| Equity market risk premium | 4.2% | 5.2% | 
| Adjusted beta | 0.86 | 0.93 | 
| Additional risk adjustments | 0.0% | 0.5% | 
| Cost of equity | 6.80% | 9.00% | 
| Tax rate | 37.10% | 38.30% | 
| Debt/Equity ratio | 0.55 | 0.55 | 
| Cost of debt | 9.10% | 12.30% | 
| After-tax WACC | 6.4% | 8.5% | 
| Selected WACC | 7.5% | |
The Cost of Equity reflects the return a company needs to deliver to shareholders to justify the risk of investing in its shares. It’s computed using the Capital Asset Pricing Model (CAPM), which blends the risk-free rate, the stock’s beta, and the market risk premium.
This method evaluates the stock’s risk compared to a safe investment and the market’s overall volatility.
Here’s how we figure out the cost of equity for PRSP:
cost_of_equity (7.90%) = risk_free_rate (3.45%) + equity_risk_premium (4.70%) * adjusted_beta (0.86) + risk_adjustments (0.25%)
We include the risk adjustments, which range from 0% to 1%, to keep our WACC conservatives, especially for companies traded in developing markets.