GameStop shares jump 13% ahead of the market, as the shares look set for another high-volume day

GameStop Corp. shares GME,
+ 18.56%
rose 13% in Friday’s pre-market trading and looked ready for another day of high-volume activity. The video game retailer’s shares are on track for 168% gains in the week after a move that started on Wednesday and continued through Thursday. In the absence of news that moves the market, the change is again being attributed to activity on Reddit’s WallStreetBets forum. Other meme actions that were swept away in a commercial frenzy in January were also active. AMC Entertainment Holdings Inc. AMC,
-8.80%
fell 0.2%, BlackBerry Ltd. BB,
-6.54%
fell 2.4%, Naked Brand Group Ltd. NAKD,
-15.56%
fell 4% and Koss Corp. KOSS,
+ 16.76%
fell 8%. Year-to-date, GameStop gained 477%, while AMC rose 291%, after investors in that Reddit forum sought to create a little pressure on both stocks in January. The unusual moves led to a Congressional committee hearing last week in which executives from Reddit, trading app Robinhood, Citadel and Melvin Capital answered questions, alongside individual investor Keith Gill – aka ‘Roaring Kitty