Assuming 30 trading days horizon, MPX Energia SA is expected to under-perform the Moly. In addition to that, MPX Energia is 1.21 times more volatile than Moly Mines Ltd.. It trades about -0.38 of its total potential returns per unit of risk. Moly Mines Ltd. is currently generating about -0.21 per unit of volatility. If you would invest 20.00 in Moly Mines Ltd. on April 26, 2012 and sell it today you would lose (3.00) from holding Moly Mines Ltd. or give up 15.0% of portfolio value over 30 days.
Diversification
Very good diversification
Overlapping area represents amount of risk that can be diversified away by holding MPX Energia SA and Moly Mines Ltd. in the same portfolio (assuming nothing else is changed)