Considering 30-days investment horizon, Time Warner Inc. is expected to under-perform the CBS Corporat. But the stock apears to be less risky and, when comparing its historical volatility, Time Warner Inc. is 2.19 times less risky than CBS Corporat. The stock trades about -0.45 of its potential returns per unit of risk. The CBS Corporation is currently generating about -0.18 of returns per unit of risk over similar time horizon. If you would invest 3,433 in CBS Corporation on April 26, 2012 and sell it today you would lose (277.00) from holding CBS Corporation or give up 8.07% of portfolio value over 30 days.
Diversification
Very weak diversification
Overlapping area represents amount of risk that can be diversified away by holding Time Warner Inc. and CBS Corp. in the same portfolio (assuming nothing else is changed)
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