NEW YORK, May 18 (Xinhua) -- U.S.-listed Chinese companies traded lower on Wednesday with all the top 10 stocks by weight in the S&P U.S. Listed China 50 index ending the day on a downbeat note.
Shares of BeiGene and Alibaba Group Holding dropped 5.4 percent and 5.09 percent, respectively, leading the losses in the top 10 stocks in the index.
