The premarket stock moves of companies reporting earnings would add about a net 22 points to the Dow Jones Industrial Average's /zigman2/quotes/210598065/realtime DJIA -3.15% price, as a rally in International Business Machines Corp. shares /zigman2/quotes/203856914/composite IBM -3.22% more than offset a drop in Johnson & Johnson's stock /zigman2/quotes/201724570/composite JNJ -0.86% . Dow futures /zigman2/quotes/210407337/delayed YMH20 -0.29% rose 79 points. IBM's stock surged 4.0% toward a 3 1/2-month high ahead of the open, with the implied price gain acting as a 37-point boost to the Dow's price. IBM reported late Tuesday revenue that surprisingly increased from a year ago and an adjusted profit that beat expectations. Johnson & Johnson shares slipped 1.5% after the consumer products and pharmaceutical company topped fourth-quarter profit expectations but came up a bit shy on revenue, with the implied price decline acting as a 15-point drag on the Dow.