(Feb 25): GameStop Corp soared in premaket trading Thursday, as retail investors revived the surge in Reddit-favourite stocks, putting it on pace to reap US$7.6 billion in market value over two days. The video-game retailer rose as much as 83% to US$168 in New York. Among other favourites of traders populating Reddit forums, AMC Entertainment Inc advanced 12% premarket, after gaining 59% in the first three days of the week, while Koss Corp surged 78%. Nokia Oyj, also a favourite of the meme crowd, climbed 7.7% in Europe, and BlackBerry Ltd added 5.3% in early trading.