An exterior view of a GameStop store on July 21, 2020 in Pembroke Pines, Florida. (Photo by Johnny Louis/Getty Images) The trading app Robinhood is restricting trading in certain securities because of the recent volatility in a number of names.Shares of AMC Entertainment Holdings, BlackBerry Ltd., Bed Bath & Beyond Inc., Express Inc., GameStop Corp., Koss Corp., Naked Brand Group and Nokia Corp.
have been restricted to "position closing only," the company said in a blog post. This means that traders cannot initiate new positions in shares of those companies and can only sell existing holdings.RELATED: Investment firms back down after Reddit thread sends GameStop shares soaringRobinhood also raised margin requirements for certain.