Trade is to short GS and go long WMT using options to reduce basis and also gain a directional advantage for BOTH symbols. (Gain more $$ if goes your way) 3/5/17
For example, look at the ratio between Haliburton vs. Schlumberger (=HAL/SLB). The ratio spread is currently at .667. It looks like its going back to .45, which is a potential 48% return. What's interesting about this combination is that they are correlated at 90.8%, which is quite high. Bear in mind the differential between the two dividends (1.34% vs. 2.45%, so the trade is going to cost you 1.11% per year plus margin costs for the short.) 3/6/17