Shares of a Chinese tech firm are up more than 15,000% since its July IPO - and even the company has no idea why 2 hours ago | By A trader reacts as he works on the floor of the New York Stock Exchange in New York, U.S., March 18, 2020. Lucas Jackson/Reuters Shares of AMTD Digital have soared as much as 15,060% since its July IPO, and the company has no idea why. AMTD Digital is a Chinese tech firm that currently has a market valuation of nearly $150 billion. The company's parent-company, AMTD Idea Group, soared more than...