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GameStop branch in Illinois
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Nam Y. Huh / AP
The excitement surrounding the ailing video game retailer GameStop is never ending on the US financial market.
The company's shares were temporarily suspended from trading on Wednesday, closing at nearly $ 92, up 104 percent.
In the aftermath of the trading day, it was up by around 70 percent at times.
The day before, GameStop announced the departure of CFO Jim Bell, initially without giving a reason.
US media later reported that the manager had to resign under pressure from influential investors because there had been disagreements about the company's strategy.
GameStop has actually been in crisis for a long time, but driven by hobby investors organized in Internet forums, the company's shares had rallied last month.
That in turn broke billions in losses for some hedge funds that had bet on a price decline.
At the end of January the stock had hit a record high of over $ 483, but the soaring was quickly over.
The price turbulence around GameStop and some other companies on the US stock exchanges already had consequences.
US authorities are investigating the incidents and investigating possible market manipulation
Buffett Vice Munger warns of an "irritating bubble" on the US financial market
The turmoil in the US financial market, including at GameStop, sees the deputy boss of star investor Warren Buffett's investment company Berkshire Hathaway, Charlie Munger, with concern.
The price capers are signs of an "irritating bubble" that has to come to a bad end at some point, said the 97-year-old on Wednesday at the annual general meeting of the US media group Daily Journal Corporation.
The frenzy of speculation surrounding GameStop and other companies reveals a dangerous new culture in which people are being encouraged by cheap brokers like Robinhood to gamble with stocks like horse betting.
The Buffett vice-president also has nothing to do with the heights of the electric car manufacturer Tesla and the digital currency Bitcoin.
He doesn't know which price rally he thinks is worse, says Munger.
Bitcoin is unsuitable as a means of payment because of its strong price fluctuations.
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cop / dpa