Stock futures edged slightly higher Sunday as investors looked forward to an update on trade policies and as Apple prepared to kick off its annual developers conference. Shortly after 6 p.m. Eastern time on Sunday, Dow Jones Industrial Average futures were up 27 points or less than 0.1%, while S&P 500 futures and Nasdaq futures also ticked up less than 0.1%. U.S. and Chinese officials are scheduled to discuss trade in a meeting on Monday.