The WACC of Thai Poly Acrylic PCL (TPA.BK) is 7.6%.
| Range | Selected | |
| Cost of equity | 6.60% - 8.60% | 7.60% |
| Tax rate | 14.60% - 19.80% | 17.20% |
| Cost of debt | 6.40% - 7.00% | 6.70% |
| WACC | 6.6% - 8.6% | 7.6% |
| Category | Low | High |
| Long-term bond rate | 2.6% | 3.1% |
| Equity market risk premium | 7.4% | 8.4% |
| Adjusted beta | 0.55 | 0.6 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.60% | 8.60% |
| Tax rate | 14.60% | 19.80% |
| Debt/Equity ratio | 0.03 | 0.03 |
| Cost of debt | 6.40% | 7.00% |
| After-tax WACC | 6.6% | 8.6% |
| Selected WACC | 7.6% | |
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 TPA.BK:
cost_of_equity (7.60%) = risk_free_rate (2.85%) + equity_risk_premium (7.90%) * adjusted_beta (0.55) + 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.