https://www.cnbc.com/2018/08/08/wall-street-analysts-doubtful-on-musks-privatization-plans-this-is-.html

Shares of Tesla jumped nearly 11 percent Tuesday after chief executive Elon Musk said on Twitter that he is debating taking the electric car manufacturer private.

"Am considering taking Tesla private at $420. Funding secured," the CEO wrote in his original post, adding in subsequent tweets that shareholders could either opt to sell at $420 per share or hold their stake and go private.