Allowing for 30-days total investment horizon, Procter & Gamble is expected to generate 0.68 times more return on investment than Ford. However, Procter & Gamble is 1.47 times less risky than Ford. It trades about -0.32 of its potential returns per unit of risk. Ford Motor is currently generating about -0.36 per unit of risk. If you would invest 6,444 in Procter & Gamble on April 26, 2012 and sell it today you would lose (195.00) from holding Procter & Gamble or give up 3.03% of portfolio value over 30 days.
Diversification
Modest diversification
Overlapping area represents amount of risk that can be diversified away by holding Procter & Gamble Co. and Ford Motor Co. in the same portfolio (assuming nothing else is changed)