At the annual meeting of Berkshire Hathaway, Warren Buffett announced his retirement from day-to-day management. Today on the show, Katie Martin and Rob Armstrong look at his incredible career, and try to figure out what becomes of a somewhat random collection of businesses. Also they go short Google and long complacency.

Warren Buffett steps down as Berkshire's CEO. Despite recent disappointing financial performance, Berkshire Hathaway stock remains strong. Read the full stock analysis here on Seeking Alpha.