The WACC of Neurones SA (NRO.PA) is 7.8%.
| Range | Selected | |
| Cost of equity | 6.50% - 9.40% | 7.95% | 
| Tax rate | 28.70% - 29.60% | 29.15% | 
| Cost of debt | 5.00% - 5.00% | 5.00% | 
| WACC | 6.4% - 9.2% | 7.8% | 
| Category | Low | High | 
| Long-term bond rate | 3.0% | 3.5% | 
| Equity market risk premium | 5.8% | 6.8% | 
| Adjusted beta | 0.6 | 0.8 | 
| Additional risk adjustments | 0.0% | 0.5% | 
| Cost of equity | 6.50% | 9.40% | 
| Tax rate | 28.70% | 29.60% | 
| Debt/Equity ratio | 0.04 | 0.04 | 
| Cost of debt | 5.00% | 5.00% | 
| After-tax WACC | 6.4% | 9.2% | 
| Selected WACC | 7.8% | |
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 NRO.PA:
cost_of_equity (7.95%) = risk_free_rate (3.25%) + equity_risk_premium (6.30%) * adjusted_beta (0.6) + 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.