FILE - This Oct. 2, 2014 file photo shows a Wall Street sign adjacent to the New York Stock Exchange, in New York. A fresh sell-off of Chinese shares prompted renewed jitters across global markets on Thursday, Aug. 20, 2015. (AP Photo/Richard Drew, File)

US stocks tumble on global slowdown fears

NEW YORK (AP) — Growing concerns about a slowdown in China shook markets around the world on Friday, driving the U.S. stock market to its bi…