GameStop Wraps Up Worst Week Ever, Leaving $18 Billion Hole (2)

Even with Friday’s bounce, GameStop Corp. wrapped up its worst week on record as a stunning reversal of fortune wiped out $18 billion from the video-game retailer’s stock-market value.

The stock fell 80% in the last five days, its worst weekly performance on record, to $63.77 in New York. The 19% gain on Friday after Robinhood Markets removed buying limits still left it far below last week’s high of $483 as retail trader demand and excitement across platforms like Reddit simmered.

GameStop’s market value slipped to $4.4 billion, a far cry from the $33.7 billion value it hit on on ...