Considering 30-days investment horizon, Hess Corporation is expected to generate 1.42 times more return on investment than Eni SPA. However, Hess is 1.42 times more volatile than Eni SpA. It trades about -0.23 of its potential returns per unit of risk. Eni SpA is currently generating about -0.37 per unit of risk. If you would invest 5,154 in Hess Corporation on April 26, 2012 and sell it today you would lose (485.00) from holding Hess Corporation or give up 9.41% of portfolio value over 30 days.
Diversification
Average diversification
Overlapping area represents amount of risk that can be diversified away by holding Hess Corp. and Eni SpA in the same portfolio (assuming nothing else is changed)