Alibaba Group Holding (BABA) and JD.com (JD) shares fell at least 9% in premarket activity Friday after China vowed to impose an additional 34% tariff on all imported US goods, effective April 10.
Earlier in the week, the Trump administration announced duties on imports from various countries, including China.
Price: 117.80, Change: -11.53, Percent Change: -8.92