Amazon became the EU's latest big tech target. Shares fell after it was hit by an antitrust charge from regulators that escalates an investigation into how it handles data from rival sellers on its platform. Margrethe Vestager, the EU antitrust chief, opened a second probe into whether it gives preferential treatment to its own retail offers and marketplace sellers that use its logistics and delivery services. "We do not take issue with the success of Amazon or its size," Vestager said.