Taking into account 30 trading days horizon, Macys Inc. is expected to under-perform the Merck. In addition to that, Macys is 2.4 times more volatile than Merck & Inc.. It trades about -0.16 of its total potential returns per unit of risk. Merck & Inc. is currently generating about -0.13 per unit of volatility. 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
Average diversification
Overlapping area represents amount of risk that can be diversified away by holding Macys Inc. and Merck & Co. Inc. in the same portfolio (assuming nothing else is changed)
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