Assuming 30 trading days horizon, BioGaia AB is expected to under-perform the Curis. In addition to that, BioGaia is 2.06 times more volatile than Curis Inc.. It trades about -0.23 of its total potential returns per unit of risk. Curis Inc. is currently generating about -0.07 per unit of volatility. If you would invest 487.00 in Curis Inc. on April 25, 2012 and sell it today you would lose (21.00) from holding Curis Inc. or give up 4.31% of portfolio value over 30 days.
Diversification
Significant diversification
Overlapping area represents amount of risk that can be diversified away by holding BioGaia AB and Curis Inc. in the same portfolio (assuming nothing else is changed)