The WACC of Blue Prism Group PLC (PRSM.L) is 8.1%.
| Range | Selected | |
| Cost of equity | 6.70% - 9.60% | 8.15% | 
| Tax rate | 1.50% - 2.20% | 1.85% | 
| Cost of debt | 7.00% - 7.00% | 7.00% | 
| WACC | 6.7% - 9.6% | 8.1% | 
| Category | Low | High | 
| Long-term bond rate | 2.9% | 3.4% | 
| Equity market risk premium | 5.3% | 6.3% | 
| Adjusted beta | 0.7 | 0.89 | 
| Additional risk adjustments | 0.0% | 0.5% | 
| Cost of equity | 6.70% | 9.60% | 
| Tax rate | 1.50% | 2.20% | 
| Debt/Equity ratio | 0 | 0 | 
| Cost of debt | 7.00% | 7.00% | 
| After-tax WACC | 6.7% | 9.6% | 
| Selected WACC | 8.1% | |
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 PRSM.L:
cost_of_equity (8.15%) = risk_free_rate (3.15%) + equity_risk_premium (5.80%) * adjusted_beta (0.7) + 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.