Nvidia has taken the crown as the world's most valuable public company, surpassing Microsoft with a market cap of $3.34 trillion. The surge in Nvidia's share price of 170% this year, fueled by the boom in generative artificial intelligence, has contributed to this milestone. With an 80% share of the data center AI chip market, Nvidia is dominating as companies like Microsoft, Apple, Alphabet, and Amazon invest in processors for AI models. Meanwhile, the S&P 500 reached another record high, with the Nasdaq Composite ending the day in positive territory and the Dow Jones Industrial Average inching up slightly. U.S. retail spending growth in May fell short of expectations, indicating a slowdown in consumer spending that may prompt the Federal Reserve to lower interest rates. Warren Buffett's Berkshire Hathaway has increased its stake in Occidental Petroleum, becoming the largest institutional investor with a potential future ownership exceeding 40%.