One simple but powerful method investors can use to assess the risk and reward of a stock portfolio is using the Capital Asset Pricing Model, or CAPM, model for expected returns.

You can estimate the expected value of your current venture, compare it to other opportunities and make a sensible decision on what is more beneficial for you.

Calculating expected price only works for certain types of stocks For newly established companies with rapid growth and unpredictable earnings and dividends, future stock price is anyone's guess.

Calculate the expected annual return of your portfolio in Microsoft Excel by using the value and expected rate of return of each investment.

Calculating the future expected stock price can be useful to predict where certain stocks are headed, but no single equation can be used universally.