Assuming 30 trading days horizon, 4629C.PA is expected to generate 0.72 times more return on investment than 3396CPA. However, 4629C.PA is 1.39 times less risky than 3396CPA. It trades about -0.43 of its potential returns per unit of risk. 3396C.PA is currently generating about -0.6 per unit of risk. If you would invest 41.00 in 4629C.PA on April 24, 2012 and sell it today you would lose (29.00) from holding 4629C.PA or give up 70.73% of portfolio value over 30 days.
Diversification
Very good diversification
Overlapping area represents amount of risk that can be diversified away by holding 4629C.PA and 3396C.PA in the same portfolio (assuming nothing else is changed)