Considering 30-days investment horizon, SAP AG is expected to under-perform the Oracle. But the stock apears to be less risky and, when comparing its historical volatility, SAP AG is 1.38 times less risky than Oracle. The stock trades about -0.7 of its potential returns per unit of risk. The Oracle Corporation is currently generating about -0.32 of returns per unit of risk over similar time horizon. If you would invest 2,924 in Oracle Corporation on April 26, 2012 and sell it today you would lose (310.00) from holding Oracle Corporation or give up 10.6% of portfolio value over 30 days.
Diversification
Very weak diversification
Overlapping area represents amount of risk that can be diversified away by holding SAP AG and Oracle Corp. in the same portfolio (assuming nothing else is changed)