Stocks got off to a good start last week after a truce on trade was struck by President Trump and Xi Jinping at the G20 conference. However, some traders caution that the truce was largely symbolic and the two sides must still resolve key conflicts regarding enforcement and market access. Stocks retreated later in the holiday-shortened week as economic data was mixed. Some gauges of manufacturing are beginning to show contraction, but the jobs report on Friday came in well above expectations.