GameStop stock doubles again amid atypical trading

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Shares of video game retailer GameStop Corp. surged another 130% on Wednesday in pre-market trading.

Shares have skyrocketed by nearly 700% over the past two weeks as amateur investors pile on to the stock.

A Reddit group has led the atypical trades. Called WallStreetBets, the group's description reads: "Like 4chan found a Bloomberg terminal." 4chan is an infamous, anonymous message board.

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