AI chipmaker Nvidia to join Dow Jones, replacing rival Intel - The Dow needs Nvidia to give chipmakers representation in index after Intel's plunge - The Dow jumps 300 points as Big Tech earnings come into focus - Dow Jones says Perplexity is "freeriding," sues over copyright infringement - Murdoch's Dow Jones sues AI start-up Perplexity for infringement - Perplexity is sued by Dow Jones and 'New York Post' for copyright infringement - Dow Jones closes at all-time high after recouping its losses from early September