Last week, the value of the Gamestop share on the stock market rushed after buy recommendations on the internet forum "wallstreet bets" on Reddit.
It was painted as a battle of David against Goliath when small speculators joined forces and challenged large American hedge funds, which lost gigantic amounts when stocks they had traded (played on a decline) rushed in value.
According to SvD Näringsliv, which has read figures from Avanza and Nordnet, tens of thousands of Swedes have jumped on the rushing stock market in the past week.
Gamestop rages
On Monday, around 60,000 customers of the two online banks owned shares in Gamestop and about the same number owned the cinema chain AMC's shares (which also rushed after recommendations on Reddit).
At the same time, share prices have plummeted in recent days.
Gamestop, which was traded for 347 dollars when it was worth the most on Wednesday, is now down to 90 dollars and AMC has gone from 20 to 8 dollars.
At the same time, the shares have still risen significantly since the turn of the year.
Then Gamestop is up 378 percent and AMC up 272 percent.
Calls for shares to be retained
Blackberry and Nokia (two other companies mentioned in the hype surrounding reddit and wallstreet bets) also have stock curves with similar roller coaster looks, a sharp rise that reached its peak on Wednesday 27 January and then a steep downhill in the past week.
On "Wall Street Bets" on Reddit, users also urge each other to keep their shares and not to sell.