Arbitrage Pricing Theory: Empirical Evidence from Turkish Stock Market

Financial Equilibrium models have been widely studied in finance literature especially with respect to asset pricing theories. Validity of CAPM and Preference of APT over CAPM has been interest of academia as well as professionals. This research investigates number of potential factors explaining returns in Turkish markets as suggested by Ross (1980) when presented APT. For this purpose data of Istanbul Stock All exchanges from January 1, 2003 to December 31, 2013 has been used all the listed companies have been considered for this purpose. Our results suggest that in most of portfolios made for purpose of this research has two significant factors explaining returns although most of portfolios were having three orthogonal factors. It was rare that three factors were significantly explaining returns but it was not investigated that what are those factors. Keywords: Arbitrage Pricing Theory, Factors Analysis, Principal Component Analysi