"You're losing one of the most esteemed investors one could argue of all time," a source said of investors' reaction to Buffett's plan to step down.

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

Berkshire will miss Buffett’s “clout,” said one analyst, as the company lost about $30 billion in market value following the Oracle of Omaha’s retirement announcement.