Assuming 30 trading days horizon, BioGaia AB is expected to under-perform the HeritageCrys. In addition to that, BioGaia is 2.06 times more volatile than HeritageCrystal Clean Inc. It trades about -0.23 of its total potential returns per unit of risk. HeritageCrystal Clean Inc is currently generating about -0.18 per unit of volatility. If you would invest 2,117 in HeritageCrystal Clean Inc on April 25, 2012 and sell it today you would lose (292.00) from holding HeritageCrystal Clean Inc or give up 13.79% of portfolio value over 30 days.
Diversification
Good diversification
Overlapping area represents amount of risk that can be diversified away by holding BioGaia AB and HeritageCrystal Clean Inc in the same portfolio (assuming nothing else is changed)