US stocks closed higher as AI-driven tech rally lifted the Nasdaq and S&P 500 to fresh record highs. Nvidia gained after unveiling a new chip bringing AI capabilities to laptops, while Micron crossed $1,000 for the first time. Geopolitical tensions with Iran …
Wall Street stocks posted modest gains on Monday as investors watched developments in U.S.-Iran peace negotiations and cheered the unveiling of a new computer chip that promises to bring artificial i…