The stock market is heading into a catalyst-filled week as Fed Chair Jerome Powell gets ready to speak at Jackson Hole and big retailers report earnings.

Federal Reserve Chair Jerome Powell's upcoming speech at the Jackson Hole Economic Policy Symposium on Friday is being billed as a pivotal, "make-or-break" moment for the central bank's more dovish contingent.

The U.S. dollar was little changed on Wednesday as traders awaited a speech from Federal Reserve Chair Jerome Powell at the annual Jackson Hole symposium later this week for clues on the monetary policy path.