Given investment horizon of 30 days, Yahoo! Inc. is expected to generate 1.37 times more return on investment than S A P. However, Yahoo is 1.37 times more volatile than SAP AG. It trades about -0.03 of its potential returns per unit of risk. SAP AG is currently generating about -0.7 per unit of risk. If you would invest 1,557 in Yahoo! Inc. on April 26, 2012 and sell it today you would lose (21.00) from holding Yahoo! Inc. or give up 1.35% of portfolio value over 30 days.
Diversification
Good diversification
Overlapping area represents amount of risk that can be diversified away by holding Yahoo! Inc. and SAP AG in the same portfolio (assuming nothing else is changed)
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