Considering 30-days investment horizon, Tata Motors Ltd. is expected to under-perform the Ford. In addition to that, Tata is 1.71 times more volatile than Ford Motor. It trades about -0.41 of its total potential returns per unit of risk. Ford Motor is currently generating about -0.36 per unit of volatility. If you would invest 1,160 in Ford Motor on April 26, 2012 and sell it today you would lose (100.00) from holding Ford Motor or give up 8.62% of portfolio value over 30 days.
Diversification
Modest diversification
Overlapping area represents amount of risk that can be diversified away by holding Tata Motors Ltd. and Ford Motor Co. in the same portfolio (assuming nothing else is changed)
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