Given investment horizon of 30 days, PACCAR Inc. is expected to generate 0.56 times more return on investment than Tata. However, PACCAR Inc. is 1.77 times less risky than Tata. It trades about -0.39 of its potential returns per unit of risk. Tata Motors Ltd. is currently generating about -0.41 per unit of risk. If you would invest 4,373 in PACCAR Inc. on April 26, 2012 and sell it today you would lose (538) from holding PACCAR Inc. or give up 12.3% of portfolio value over 30 days.
Diversification
Average diversification
Overlapping area represents amount of risk that can be diversified away by holding PACCAR Inc. and Tata Motors Ltd. in the same portfolio (assuming nothing else is changed)
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