Investigation of Symmetric, Asymmetric and Multi-Fractal Returns of Investment Companies

As globalization and international communications increase in transactions especially in capital markets, use of new and appropriate tools is important for managers and decision-makers in finance in order to acquire appropriate return with rational risk. The new paradigm which has been formed based on chaos theory and fractal science in finance and investment areas can change neo-classic ideas which are unable and inefficient in dealing with complexities. In the present research, we try to introduce a new paradigm in finance using physics and math, which is the very fractal space and analyze variations of investment companies returns in Tehran Stock Exchange considering the hypotheses of this new approach.