A stock’s intrinsic value is generally defined as the value of the future cash flows of a company, discounted back to present value. The Graham Formula for calculating the intrinsic value of a company is different. You really only need three inputs to complete the calculation: The company’s trailing twelve month earnings per share, The intrinsic value of a call option is the difference between the strike price and the market price when the option is in the money. If the option is out of the money, the intrinsic value is zero. In other words, intrinsic value tells you how much money you keep if you exercise the option to buy the shares and sell them at the current market price.