Warren Buffett's Berkshire Hathaway Puts $365 Billion Bet on Single Stock

Almost half of Berkshire Hathaway's $365 billion portfolio is invested in Apple, which has been a highly successful investment for Warren Buffett. However, the current valuation of Apple is significantly higher than when Buffett first purchased the stock, and the company's growth opportunities may be limited. As a result, it may not be a smart investment at this time.