Sam Goldfarb and Krystal Hur report for the Wall Street Journal that hot inflation data and hawkish remarks from Fed governor Christopher Waller revived Wall Street's fears of a rate hike, pulling investors' attention back to the Fed after weeks focused on wobbles in the artificial-intelligence trade. A linked Journal article reports that AI jitters combined with rate-hike fears for the worst day for stocks since July, as the Nasdaq edged lower.