Considering 30-days investment horizon, Merck & Inc. is expected to generate 1.37 times more return on investment than Exxon. However, Merck is 1.37 times more volatile than Exxon Mobil Corporation. It trades about -0.13 of its potential returns per unit of risk. Exxon Mobil Corporation is currently generating about -0.37 per unit of risk. If you would invest 3,846 in Merck & Inc. on April 26, 2012 and sell it today you would lose (91.00) from holding Merck & Inc. or give up 2.37% of portfolio value over 30 days.
Diversification
Weak diversification
Overlapping area represents amount of risk that can be diversified away by holding Merck & Co. Inc. and Exxon Mobil Corp. in the same portfolio (assuming nothing else is changed)
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