Fixing Wall Street's Autopilot

Fixing Wall Street's Autopilot

Chapel Hill, N.C.

ON Thursday afternoon, the Dow plunged 1,000 points within a few minutes, followed by an equally sudden recovery. We don’t know all the details about the drop, but it was almost certainly the result of computer or human error in a high-speed trading program.

Among the many arcane corners of the financial world highlighted by the Wall Street crisis, high-frequency trading — in which computers scan billions of bits of market data for trading opportunities that may exist for mere fractions of a second — has generated a surprising amount of discussion. Alongside the risk of expensive errors like what happened Thursday, critics say, these programs facilitate insider trading and overwhelm regulators’ access to critical information.

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All About High Frequency Trading

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