Uber underwriters worried about the IPO deployed unusual ‘naked short’ tactic to support the stock
The technique shares the same name as a practice that was outlawed during the financial crisis of 2008, but is legal and Uber’s prospectus warned it was a possibility. https://www.cnbc.com/2019/05/14/uber-underwriters-worried-about-the-ipo-deployed-unusual-naked-short.html