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. The next four days will be crucial for the GOP tax plan.  The House Republican bill to reform the tax code meets its first real test Monday, with House Ways and Means Chair Kevin Brady bringing his bill to the committee for the start of a multi-day markup. Broadcom has offered to buy Qualcomm in what would...