32% of Warren Buffett's $291 Billion Portfolio Is Invested in 4 Artificial Intelligence (AI) Stocks

  • Warren Buffett is one of the world's most successful investors. He is the chairman and CEO of Berkshire Hathaway (BRK.A 0.98%) (BRK.B 0.98%), where he oversees more than 70 wholly owned subsidiaries and a $291 billion portfolio of dozens of publicly traded stocks and securities.