Stock Market Today: Nasdaq Sinks; Nvidia Drops as Alphabet Rallies on AI Chip Rivalry — Live Updates The Wall Street JournalNvidia shares tumble on signs Google gaining upper hand in AI Financial TimesRetail earnings, the new AI leaders, Amazon’s $50 billion investment and more in Morning Squawk CNBCGoogle Further Encroaches on Nvidia’s Turf With New AI Chip Push The InformationS&P 500, Nasdaq dip as Nvidia tumbles on competition worries Reuters