What you need to know on Wall Street today

Welcome to Finance Insider, Business Insider's summary of the top stories of the past 24 hours. Sign up here to get the best of Business Insider delivered direct to your inbox. Whenever Jeff Bezos, Warren Buffett, or Jamie Dimon do just about anything, they have our curiosity. When all three of them join forces to do something together? Now they've got our attention. Amazon, Berkshire Hathaway, and JPMorgan Chase announced Tuesday they're are creating a new business to take on the...