The drop in share prices was the latest bout of volatility for a stock that earlier this year became a battleground between a throng of individual traders loosely organized on Reddit and sophisticated hedge funds that had bet aggressively that the shares of the largely brick-and-mortar retailer were doomed to fall.
For a brief moment in late January, the Reddit traders got the upper hand, setting off a so-called short squeeze that sent the share price up more than 1,700 percent in mere weeks. The stock subsequently tumbled, losing nearly all its gains, only to resume its climb late last month. At the close of trading on Tuesday it remained up a remarkable 865 percent this year.
Article source: https://www.nytimes.com/2021/03/23/business/gamestop-additional-shares.html