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Ultrafast Trades Trigger Black Swan Events Every Day, Say Econophysicists
9. 2 2012 (18:50)
The US financial markets have suffered over 18,000 extreme price changes caused by ultrafast trading, according to a new study of market data between 2006 and 2011
On 6 May 2010, shares on US financial markets suddenly dropped on average by around 10 per cent but in over 300 stocks by more than 60 per cent. Moments later the prices recovered.

