U.S. equity futures lurched lower as trading opened on Thursday in Asia, with S&P 500 Index contracts plunging as much as 1.9 percent on heavy volume. Traders couldn’t immediately pinpoint a trigger for a decline of that magnitude, though many cited the arrest of Huawei Technologies Co.’s Chief Financial Officer Wanzhou Meng and its implications for U.S.-China trade relations. Some market watchers have pointed to a possible fat finger or that trading was distorted by the restart after Wednesday’s closure for cash markets and shortened trading in the equity futures market. The selling pressure was so intense that it ... (full story)