Federal Reserve Chair Jerome Powell is set to give what could be his most consequential speech yet — just a few days after one of his colleagues was threatened with prosecution for alleged mortgage fraud.

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.

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 Nasdaq fell as megacaps lost, after having rallied for much of the year. Nvidia fell 3.5%, the biggest drop in nearly four months.

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.

By Howard Schneider WASHINGTON (Reuters) -Fed Chair Jerome Powell used the central bank's annual Wyoming research conference to promise inflation-fighting rigor when it was needed in 2022, then last year he came to the defense of the job market with promises of lower interest rates when the unemployment rate seemed on a steady rise.

Gold edged down as investors awaited the Federal Reserve’s Jackson Hole gathering for clues on the path for US interest rates.