GameStop approves Ryan Cohen as portfolio manager. The speculation is that this will allow him to use GameStop’s cash on hand to trade stocks (Currently over a BILLION) 07 Dec Administrator Around this time Investors begin to report that certain brokers are not allowing them to direct register their GameStop shares. Forget GameStop: As word gets out that Ryan Cohen is now allowed to use the company cash to trade stocks, the media publishes dozens of articles and news segments trashing the strategy.