The developer of driverless technology has unveiled a $100 million share buyback program in a bid to reassure investors after a stock price slideKey Takeaways:Shares in the robotaxi operator have fallen nearly 40% since its U.S. IPO last yearWeRide is in a fierce contest with Pony AI for investor confidence and market expansion opportunitiesA share buyback is often a move to boost investor confidence or drive up a company's stock price. In the case of Chinese robotaxi operator WeRide Inc. (WRD.US) the motiv ...