Powell's speech at Jackson Hole will set the tone for policy through the rest of this year. BofA says the speech will drive big swings in these stocks.

Federal Reserve chair is under bombardment from Donald Trump and battling an insurgency within the central bank

Gold prices fell on Thursday, pressured by a firmer dollar, while investors looked to the U.S. central bank's annual Jackson Hole symposium later in the day for further policy cues.

The annual Jackson Hole Economic Symposium takes place later this week. It will attract policymakers from around the world and feature highly anticipated remarks from Federal Reserve Chair Jerome Powell.

Walmart earnings are in early focus before the highly anticipated start of the Federal Reserve's gathering at Jackson Hole.

Britain's main stock indexes declined on Thursday, dragged by losses in consumer-related shares, while global investors turned their attention to the U.S. Federal Reserve's annual symposium in Jackson Hole.