Key TakeawaysU.S. stock markets experienced a significant downturn, with the S&P 500 (.SPX), Nasdaq Composite (.IXIC), and Dow Jones Industrial Average (.DJI) all closing below their critical 50-day moving averages for the first time in months, as AI euphoria shows signs of cooling ahead of Nvidia (NVDA) earnings and the delayed jobs report.Federal Reserve Governor Christopher Waller reiterated his call for a 25 basis point interest rate cut in December, citing a weakening labor market and stable inflation ...