The Bachelor thesis deals with the use of CAPM within the business valuation process. In the first, theoretical, part, the DCF model is explained, the CAPM is derived and the link between the DCF model, used for intrinsic value computation, and CAPM, used for discount rate calculation, is shown. The second, practical, part concerns itself with the application of the theoretical model CAPM in the real world and on the real company ČEZ a.s. In this part the basic methods of CAPM computation are shown as well as the main pitfalls of this calculation. At the end of the second part, the valuation of ČEZ using DCF and the discount rate obtained from the CAPM is performed.The main goal is to demonstrate to the reader how to calculate the discount ...