Las Vegas's tipped workers say their income has fallen by more than half as tourism plunges Tesla shares were down about 1% in early trading Monday. The company’s stock has fallen more than 15% since the start of the year. Musk’s firm has ramped up displays of its “Full Self-Driving” software in recent days during a significant rough patch in its once-booming business. Tesla has lost ground to Chinese electric vehicle makers such as BYD in key markets Europe and China. Tesla has also faced investor questions over its aging car lineup and a brand image crisis related to Musk’s controversial work with President Trump and the Department of Government Efficiency. In a potential sign of turmoil, Musk reportedly fired his longtime Tesla “fixer” Omead Afshar last week.