It is called shorting Dave.  Big banks and hedge funds make a fortune doing this. About time the feds did something about it instead of leaving it up to Reddit investors.  Shorting should be illegal in my opinion.  Really excellent companies got hit. Remember selling Shopify holdings as a result of that major shorter.  They posted all kinds of misinformation to bring the stock down. The list goes on and on.  I think they may try to continue this with Mordena, but will have a hard time as the orders keep coming and coming and the world needs all the vacine it can get.