The WACC of POSCO Thainox PCL (INOX.BK) is 8.7%.
| Range | Selected | |
| Cost of equity | 7.20% - 10.20% | 8.70% |
| Tax rate | 20.30% - 20.60% | 20.45% |
| Cost of debt | 4.00% - 21.90% | 12.95% |
| WACC | 7.1% - 10.3% | 8.7% |
| Category | Low | High |
| Long-term bond rate | 2.6% | 3.1% |
| Equity market risk premium | 7.4% | 8.4% |
| Adjusted beta | 0.62 | 0.79 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.20% | 10.20% |
| Tax rate | 20.30% | 20.60% |
| Debt/Equity ratio | 0.01 | 0.01 |
| Cost of debt | 4.00% | 21.90% |
| After-tax WACC | 7.1% | 10.3% |
| Selected WACC | 8.7% | |
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 INOX.BK:
cost_of_equity (8.70%) = risk_free_rate (2.85%) + equity_risk_premium (7.90%) * adjusted_beta (0.62) + 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.