High-Speed Traders Exploit Loophole

High-speed traders are using a hidden facet of the Chicago Mercantile Exchange's computer system to trade on the direction of the futures market before other investors get the same information, according to the WSJ

Using powerful computers, high-speed traders are trying to profit from their ability to detect when their own orders for certain commodities are executed a fraction of a second before the rest of the market sees that data, traders say.  The advantage often is just one to 10 milliseconds, according to people familiar with the matter and trading records reviewed by The Wall Street Journal. But that is plenty of time for computer-driven traders…

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