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 uphere toget the best of Business Insider delivered direct to your inbox. AT&T and Time Warner's court victory was the final hurdle to clear before an M&A explosion WhenAT&TandTime Warnerfinallyreceived approval for their blockbuster $85 billion mergeron Tuesday, everyone involved in the deal rejoiced. After a hard-fought battle with regulators, they were able to enjoy the fruits of their labor a...