Federal Reserve Chairman Jerome Powell's speech at the Jackson Hole Symposium in Wyoming had Wall Street struggling for direction at the end of the week, after he noted the central bank remains uncomfortable with the current state of inflation. Meanwhile, Broadcom (AVGO) popped after the U.K. competition regulator cleared its buyout of VMware (VMW) for $61 billion, and options bulls blasted Palo Alto Networks (PANW). Tesla (TSLA) surged after Baird added the electric vehicle (EV) concern to its "best ideas" list, and Workday (WDAY) drew a slew of bull notes.