CSAN3.SA WACC - Weighted Average Cost of Capital

The WACC of Cosan SA (CSAN3.SA) is 16.3%.

The Cost of Equity of Cosan SA (CSAN3.SA) is 27.55%.

The Cost of Debt of Cosan SA (CSAN3.SA) is 15.50%.

	Range	Selected
Cost of equity	26.00% - 29.10%	27.55%
Tax rate	6.70% - 15.60%	11.15%
Cost of debt	7.40% - 23.60%	15.50%
WACC	10.8% - 21.9%	16.3%

WACC

CSAN3.SA WACC calculation

Category	Low	High

Long-term bond rate	11.9%	12.4%
Equity market risk premium	9.5%	10.5%
Adjusted beta	1.49	1.55

Additional risk adjustments	0.0%	0.5%
Cost of equity	26.00%	29.10%

Tax rate	6.70%	15.60%
Debt/Equity ratio	3.83	3.83
Cost of debt	7.40%	23.60%

After-tax WACC	10.8%	21.9%


Selected WACC	16.3%

CSAN3.SA's CAPM model and how its cost of Equity is calculated

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 CSAN3.SA:

cost_of_equity (27.55%) = risk_free_rate (12.15%) + equity_risk_premium (10.00%) * adjusted_beta (1.49) + 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.