Alternatively, you can calculate the cost of equity using the CAPM formula: Discount Rate = risk-free rate + (beta × market premium).
The company’s beta measures how volatile the stock is compared to the market.
The expected market return is the average return of the entire market, usually 7–9% annually.
To calculate the discount rate using the CAPM formula, you’ll need three key inputs: the risk-free rate, the company’s beta, and the expected market return.
The risk-free rate represents the return of a completely safe investment, typically measured by long-term government bonds like the 10-year U.S. Treasury yield. You can find this rate on financial websites such as TradingEconomics or MarketWatch by searching for “10-Year Treasury Yield.”
The company’s beta measures how volatile a stock is compared to the overall market. A beta of 1 means the stock moves in line with the market, while a beta above 1 indicates higher volatility. You can easily find a company’s beta on Yahoo Finance: search for the company, go to the Statistics section, and look for “Beta (5Y Monthly).” Brokers and financial data platforms like Morningstar also provide this value.
The expected market return reflects the average annual return of the entire stock market, often assumed to be between 7% and 9% based on long-term historical data. Unlike the other two inputs, the expected market return is a general assumption rather than a company-specific figure.
Using these three metrics, you can calculate a company-specific discount rate to apply in valuation models like the Dividend Discount Model or Discounted Cashflow.
CAPM (Capital Asset Pricing Model) is a widely used method to set the discount rate more objectively, reflecting both market conditions and the individual company’s risk. As a simple rule: The more uncertain the dividends, the higher your discount rate should be.