Considering 30-days investment horizon, Exxon Mobil Corporation is expected to generate 0.3 times more return on investment than Macys. However, Exxon Mobil Corporation is 3.28 times less risky than Macys. It trades about -0.37 of its potential returns per unit of risk. Macys Inc. is currently generating about -0.16 per unit of risk. If you would invest 8,608 in Exxon Mobil Corporation on April 26, 2012 and sell it today you would lose (400.00) from holding Exxon Mobil Corporation or give up 4.65% of portfolio value over 30 days.
Diversification
Poor diversification
Overlapping area represents amount of risk that can be diversified away by holding Exxon Mobil Corp. and Macys Inc. in the same portfolio (assuming nothing else is changed)