Tesla is one of the hottest stocks on the U.S. Stock Exchange.br Data from S3 partners analytics firm say traders betting against Tesla are down $25.4 billion in mark-to-market losses.br Business Insider reports that short-seller lost billions after a rally that sent Tesla up 390 this year.br Still, short-sellers are not deterred.br Tesla is still the top short in the US market.br Investors bet $21.3 billion against the company, according S3.