Considering 30-days investment horizon, Global Payments Inc. is expected to under-perform the Duke. But the stock apears to be less risky and, when comparing its historical volatility, Global Payments Inc. is 1.13 times less risky than Duke. The stock trades about -0.35 of its potential returns per unit of risk. The Duke Realty Corporation is currently generating about -0.27 of returns per unit of risk over similar time horizon. If you would invest 1,473 in Duke Realty Corporation on April 26, 2012 and sell it today you would lose (101.00) from holding Duke Realty Corporation or give up 6.86% of portfolio value over 30 days.
Diversification
Very weak diversification
Overlapping area represents amount of risk that can be diversified away by holding Global Payments Inc. and Duke Realty Corp. in the same portfolio (assuming nothing else is changed)