This week's set-piece event is the Jackson Hole central-bank gathering in Wyoming, slated for Thursday through Saturday. Investors will be glued to Federal Reserve Chair Jerome Powell's speech, hoping for any insight into whether the central bank might kick off interest-rate cuts in September.

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 central bankers' symposium later this week for clues on the path of monetary policy.

Yardeni Research president Ed Yardeni believes Fed chair Jerome Powell won't give away his hand when he speaks in Jackson Hole this week.

Incoming information has confounded Fed Chair Jerome Powell's data-dependent strategy by pulling in both directions.