Nio (NYSE: NIO) stock made a dramatic U-turn this morning after yesterday’s plunge and has popped 13.5% as of 10:55 a.m. ET. Nio will hold a product launch event tomorrow, and although the company hasn’t specified what product will hold the spotlight, it should be its ES7 SUV. Nio released a teaser video of the new model today, giving a sneak peek into its camera and lidar sensor system.