One person who will surely be following closely is prominent Tesla short David Einhorn, who told investors that the rally in Tesla shares, which he is short, turned into heavy losses at his Greenlight Capital fund and dedicated a portion of his latest letter to investors yesterday to discuss the Musk's increasingly bizarre antics:

The most striking feature of the quarter is that Elon Musk appears erratic and desperate. During the quarter Mr. Musk:

Attacked an analyst for asking "boring bonehead questions" on the quarterly conference call;
Hung up on the head of the National Transportation Safety Board;
Assailed the media for the audacity to report that Tesla's customers crash while using "autopilot";
Accused an internal whistleblower of "sabotage";
Appeared to paint the tape with trivial insider purchases; and
Went on a tweetstorm calling for "the short burn of the century."
The market preferred this bravado much more than say, GM's actual accomplishments. TSLA soared 29% during the quarter and was our second biggest loser.