Of course, GameStop (GME) has been the poster child of this mania, but it's been carrying over into other stocks, such as AMC (AMC), BlackBerry (BB) and Etsy (ETSY). Who do we have to thank for ...

Currently, the short position in GameStop shares amounts to more than 24% of all its shares that are freely available to trade, also known as the float. The poster child was hedge fund Melvin ...