Contribute Wiki on given topic: Systematic risk and expectedreturns in emerging markets. Systematic risk, also known as "marketrisk" or "un-diversifiable risk", is the doubt inherent to theentire market. Also brought up to as volatility systematic riskconsists of the day-to-day fluctuations in a stock's price.Volatility is a criterion of risk because it refers to thebehavior, or "temperament," of your investment rather than thereason for this behavior. Because market movement is the cause whypeople can make money from stocks, volatility is essential forreturns, and the more unstable the investment the more chance thereis that it will experience a dramatic change in eitherdirection.