Welcome to Market Catalyst. I'm Julie Hyman. We are 30 minutes into the US trading day.Let's get to the three market catalysts we're watching this hour. First up, the Fed decides. We'll have full coverage on the Fed's allimportant rate decision this week.And we'll dig into the trades to watch ahead of that decision as gold sees its best run since 1979. Plus, Nvidia probed in China amid accusations of violating anti- monopoly laws. How will that play into trade talks.We'll discuss that and more on Market Cat ...