Berkshire Hathaway CEO Warren Buffett is stepping down. Buffett has made some strong bets, as well as some some investing missteps, over his 55-year career.

Warren Buffett has announced that he’s stepping down as CEO of Berkshire Hathaway at the end of the year. Buffett says he will still hang around to help his successor Greg Abel and will remain board chair at the organization.

Yes, he made lots of money. But the closely watched investor amassed a following by being a conscience of capitalism, and his exit raises questions about what’s next for his company.