Wall Street closed mixed on Friday, as investors digested the development of a phase-one trade deal between the US and China and remain expectant of further detail. On Friday, China confirmed they had struck an agreement with the US that includes a phased rollback of tariffs, but offered few specifics. The Dow Jones gained 3 points or closed flattish at 28135. The S&P 500 closed unchanged at 3169. The Nasdaq climbed 18 points or 0.2% to 8735.