Warren Buffett’s returns are off the charts. Between 1965—when Buffett took over—and the end of last year, Berkshire Hathaway shares rose just over 5,500,000%. That makes it difficult to compare Berkshire’s performance to the S&P 500 during his tenure,

Buffett talked about U.S. trade, the stock market and his own future at Berkshire Hathaway's annual shareholder meeting. Here are the highlights.