https://www.cnbc.com/2018/09/11/former-big-bull-on-tesla-says-the-stock-is-no-longer-investable-due-to-elon-musks-behavior.html > One of Tesla's biggest advocates is giving up on his positive view of the carmaker's stock because of CEO Elon Musk's controversial behavior. > Nomura Instinet lowered its rating to neutral from buy for Tesla shares, citing concerns Musk's actions may hurt the company's brand.