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*NYSE Updates OpenBook

Two new enhancements to the New York Stock Exchange's OpenBook market data feed promise traders more speed and information. The first product, OpenBook Ultra, delivers information about each event that occurs on the limit order book, as opposed to the snapshots distributed through the current version. It also identifies orders, cancels and executions, according to Mark Schaedel, vice president of data products for NYSE Euronext.

"Folks use this to create all types of analytics," Schaedel said. "One is seeing what's not displayed, based upon what's traded versus what was quoted on the book. So, you know if a larger trade went off-versus what was ...

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