US stocks were mixed Monday and the S&P 500 eked out a record high for the sixth day in a row as investors digested the announcement of a trade deal between Washington and Brussels.

Europe's major bourses made modest gains and the euro fell on Monday as investors greeted a trade agreement between the U.S. and European Union with cautious relief at the start of an action-packed week for markets.

Wall Street Journal reporter Kim Mackrael explains what we know about President Trump’s biggest trade deal so far, and what it tells us. 📹 Watch the video above and then read more below: