Stock market today: S&P 500, Nasdaq notch records as Nvidia takes crown from Microsoft as most valuable stock Yahoo FinanceNvidia Tops Microsoft to Become Largest U.S. Company The Wall Street JournalNvidia (NVDA) Tops Microsoft (MSFT) to Become World’s Most Valuable Company BloombergNvidia surpasses Microsoft to become the largest public company in the world CNNNvidia passes Microsoft in market cap to become most valuable public company CNBC