Given investment horizon of 30 days, Career Education Corporation is expected to under-perform the Strayer. In addition to that, Career is 1.08 times more volatile than Strayer Education Inc.. It trades about -0.09 of its total potential returns per unit of risk. Strayer Education Inc. is currently generating about 0.02 per unit of volatility. If you would invest 9,905 in Strayer Education Inc. on April 25, 2012 and sell it today you would lose (1,280) from holding Strayer Education Inc. or give up 12.92% of portfolio value over 30 days.
Diversification
Modest diversification
Overlapping area represents amount of risk that can be diversified away by holding Career Education Corp. and Strayer Education Inc. in the same portfolio (assuming nothing else is changed)