Shares in Beyond Meat (NASDAQ:BYND) stock jumped 55% in pre-market trading despite a huge loss.Reporters focused on management promises to cut costs and revenues that came in ahead of estimates.But there may be a simpler explanation: a short squeeze. Fintel reports that 37% of BYND stock is now held short, including 58% of that held off exchanges. BYND stock opened this morning at $11.60 per share, a market capitalization of about $750 million.Squeezing Fake MeatBeyond Meat was a big deal five years ago, as ...