Ross Gerber, a longtime Tesla shareholder, outlined to BI four reasons he thinks the stock is vulnerable to a 50% pullback this year.

Sales are plunging in some of the world’s biggest EV markets, and protesters and vandals are targeting the company’s stores.

Elon Musk, once the face of Tesla’s meteoric rise, seems to be turning his focus elsewhere just as the company faces mounting challenges. With Tesla’s sales slipping and competition heating up, investors and analysts are beginning to question whether Musk still has the passion — or the time — to lead the electric carmaker.