“…Therefore, in this regard based on different theories of concern with portfolio performance evaluation, at the beginning of this research using Sharp, Treynor, and Sortino ratios, which evaluate SD (Standard Diviasion), systematic risk, and downside risk against the expected return of investment, we evaluate the performance of investment companies. These ratios werealso used inthe following researches: (Pedersen and Ted, 2003) in London Stock Exchange, (Bengtsson, 2007) in Nordic and Baltic Stock Exchange, (Chaudhry et al, 2008) in Australian Securities Exchange, (Galetsas, 2008) in Greek Stock Exchange, (Rahdari, 2009) in Tehran Stock Exchange, (Rao, 2010) in National Stock Exchange of India Limited.…”