“To have one of the biggest companies in the world, not have a full-time CEO is unheard of,” said Ross Gerber, CEO of Gerber Kawasaki, an investment firm and one of the early investors in Tesla.

Dan Ives, managing director of Wedbush Securities and a prominent Tesla bull, says he is sticking to his optimistic outlook on Tesla despite Elon Musk's escalating feud with President Trump ...