When investors thought that the GameStop (NYSE: GME) short-squeeze was over just as it started, GME shares showed signs of potential future gains driven by market speculation, causing more short squeezes, albeit smaller ones.Now, it seems that something factual sent GME stock soaring in the pre-market. It added 15% in pre-market trading, taking its price from $19 on Friday, to almost$22 at the time of writing.GME stock 24-hour price chart. Source: Google FinanceThis surge marks the largest daily surge sinc ...