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 Dow Jones industrial average fell as much as 306 points Wednesday, bogged down by concerns of possible Chinese retaliation against President Donald Trump's metals tariffs, disappointing retail sales, and another downward revision to the Atlanta Fed's first-quarter GDP forecast.   Here's the latest: One...