Taking into account 30 trading days horizon, Macys Inc. is expected to under-perform the Yahoo. In addition to that, Macys is 1.39 times more volatile than Yahoo! Inc.. It trades about -0.16 of its total potential returns per unit of risk. Yahoo! Inc. is currently generating about -0.03 per unit of volatility. 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
Significant diversification
Overlapping area represents amount of risk that can be diversified away by holding Macys Inc. and Yahoo! Inc. in the same portfolio (assuming nothing else is changed)
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