Considering 30-days investment horizon, DIRECTV is expected to generate 0.55 times more return on investment than TiVo. However, DIRECTV is 1.82 times less risky than TiVo. It trades about -0.15 of its potential returns per unit of risk. TiVo Inc. is currently generating about -0.45 per unit of risk. If you would invest 4,848 in DIRECTV on April 26, 2012 and sell it today you would lose (211.00) from holding DIRECTV or give up 4.35% of portfolio value over 30 days.
Diversification
Good diversification
Overlapping area represents amount of risk that can be diversified away by holding DIRECTV and TiVo Inc. in the same portfolio (assuming nothing else is changed)
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