The WACC of Terna Rete Elettrica Nazionale SpA (TRN.MI) is 7.3%.
| Range | Selected | |
| Cost of equity | 8.50% - 11.30% | 9.90% |
| Tax rate | 29.10% - 29.60% | 29.35% |
| Cost of debt | 5.00% - 5.00% | 5.00% |
| WACC | 6.5% - 8.1% | 7.3% |
| Category | Low | High |
| Long-term bond rate | 3.7% | 4.2% |
| Equity market risk premium | 8.3% | 9.3% |
| Adjusted beta | 0.58 | 0.71 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.50% | 11.30% |
| Tax rate | 29.10% | 29.60% |
| Debt/Equity ratio | 0.68 | 0.68 |
| Cost of debt | 5.00% | 5.00% |
| After-tax WACC | 6.5% | 8.1% |
| Selected WACC | 7.3% | |
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 TRN.MI:
cost_of_equity (9.90%) = risk_free_rate (3.95%) + equity_risk_premium (8.80%) * adjusted_beta (0.58) + 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.