Given investment horizon of 30 days, Career Education Corporation is expected to under-perform the Capella. In addition to that, Career is 2.0 times more volatile than Capella Education. It trades about -0.09 of its total potential returns per unit of risk. Capella Education is currently generating about -0.05 per unit of volatility. If you would invest 3,180 in Capella Education on April 25, 2012 and sell it today you would lose (117.00) from holding Capella Education or give up 3.68% of portfolio value over 30 days.
Diversification
Poor diversification
Overlapping area represents amount of risk that can be diversified away by holding Career Education Corp. and Capella Education Co. in the same portfolio (assuming nothing else is changed)