In August, Einhorn called on Musk to resign after Business Insider reported on a Tesla effort to replace faulty parts on its rooftop solar systems. He said on a conference call Thursday that Greenlight remains short on Tesla, even though the position hurt its performance during the period. He added that he’s been surprised by the stock’s resilience, given “relentless negative news and what appears to be an end of the company’s growth trajectory,” according to a Nasdaq transcript.
In his tweet, Musk addressed Einhorn as “Unicorn” and signed off as “Treelon,” a reference to his tree-planting donation. Musk accompanied the missive a reference to gifting Einhorn “short shorts.”
It wasn’t the first time the men have sparred. Last year, Einhorn acknowledged receiving an earlier transmission of shorts.
“I want to thank @elonmusk for the shorts,” Einhorn posted. “He is a man of his word! They did come with some manufacturing defects.”