Trader’s arrest raises concerns about market rigging

Follow The Money


The arrest of a little-known futures trader this week drew back the curtain on a pernicious-sounding practice that has been said to distort global financial markets.

In the criminal complaint filed against a British trader on Tuesday, prosecutors said that a trading strategy known as spoofing was used to manipulate prices and helped lead to the 2010 “flash crash,” in which the biggest markets in the United States were thrown into disarray in minutes.

The 1,000-point plunge in the Dow Jones industrial average on May 6, 2010, challenged investor confidence and raised questions about how carefully regulators were watching out for rogue trading.

Long before this week’s case, however, some analysts say that spoofing was already one of the most common ways for some high-frequency trading firms to manipulate stock prices. Traders using the technique look to make money by buying and selling securities in seconds, sometimes milliseconds.


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