Tesla stock has battled back this year and heading into Thursday's robotaxi event, it is approaching a traditional buy point even as investors appear to be treading carefully prior to the big announcement. Robotaxi event invitations were officially sent to Tesla investors on Sept. 25 and while most of the details are still under wraps, Chief Executive Elon Musk is setting sky-high expectations for the event. "This will be one for the history books," Musk posted to X on Sept. 25, along with a photo of the event announcement.