Creation of portfolios based on different industries and market capitalization to determine the accuracy of the CAPM before and after the Global Financial Crisis.<div><br></div><div>Investigating if different forms of calculating betas for portfolios can increase/decrease the accuracy of the CAPM.<br><div><br></div><div>Calculation of betas.</div><div><br></div><div>Kolmogorov smirnov test, Normality, T-tests and descriptive statistics. </div></div>