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Product LoginThursday, July 20, 2017
Options Technical Update #2017 - 33
ISE updates handling of StockLegGiveUp on FIX
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Currently, legacy ISE T7 FIX supports five character values for the StockLegGiveUp (Tag 9076) field on an incoming order while Stock Execution venues support four character MPIDs. As a result, T7 FIX removes the 5th character before the StockLegGiveUp is provided to a Stock Execution venue. While legacy T7 FIX will continue to accept 5 character MPIDs during the migration period, INET FIX will not support the automated removal of the 5th character. Participants who wish to send orders with a StockLegGiveUp in underlyings trading on ISE INET through FIX during the symbol migration will need to send a valid 4 character MPID in the StockLegGiveUp field. Participants utilizing the FIX Bridge will receive a reject if orders contain a 5 character MPID in underlyings which are trading on INET. Please contact Market Operations with any questions. |
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