So he sent out a fake--he bought -he shorted the company and he --the stock in the company- and he bought --he put out a fake press release saying that there was bad news for the company.

他散布假消息,他先卖空公司的股份,接着买入,然后他对外界放出假消息,说公司有重大利空

耶鲁公开课 - 金融市场课程节选