NYSE, Market-Q, Morningstar

NYSE Tests New OpenBook

The New York Stock Exchange will this week begin testing canned data for a redesigned version of its Amex OpenBook datafeed, which provides updates at one-second intervals. The new version features a new format using NYSE's Exchange Data Publisher platform, trading status information such as pre-open, close and halt messages, last OpenBook ultra sequence numbers and packet update count information, as well as bandwidth optimizations resulting in a 50 percent reduction in

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