Illegally opened positions? Trading platform announces restrictions on GameStop trading

Trading platforms Robinhood and Interactive Brokers announced on Thursday (28) to restrict trading in shares and options of the wildly speculative video game retailer GameStop, and a number of recently unusually volatile stocks such as AMC Entertainment were also restricted.

GameStop shares had fallen more than 24% in the early part of the U.S. stock market, but have since risen backwards to trade at $423.22, up 21.79%.