Given investment horizon of 30 days, Mannatech Inc. is expected to under-perform the China. In addition to that, Mannatech is 1.87 times more volatile than China Sky One Medical Inc.. It trades about -0.13 of its total potential returns per unit of risk. China Sky One Medical Inc. is currently generating about -0.02 per unit of volatility. If you would invest 34.00 in China Sky One Medical Inc. on April 26, 2012 and sell it today you would lose (3.00) from holding China Sky One Medical Inc. or give up 8.82% of portfolio value over 30 days.
Diversification
Good diversification
Overlapping area represents amount of risk that can be diversified away by holding Mannatech Inc. and China Sky One Medical Inc. in the same portfolio (assuming nothing else is changed)