The New York Stock Exchange last week received approval from the US Securities and Exchange Commission to launch a faster version of its OpenBook depth of market feed.
The NYSE's existing OpenBook product, which was introduced in 2002, delivers real-time snapshots of market depth, refreshed at five-second intervals (IMD, Jan. 28, 2002). OpenBook Real Time, which will debut on May 1, cuts the refresh time to one second in response to user demands for faster data delivery in expectation of the
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