Exchange ID Change for Line Integrity and Control Messages for ITC 2.1 Channels on the MDP

Market Data Advisory Notices

To	Market Data Distributors
From	Market Data Operations
Subject	Exchange ID Change for Line Integrity and Control Messages for ITC 2.1 Channels on the MDP
Notice Date	2007-11-09
Notice Number	Q2007-284
Effective Date	2007-11-09
With the recent addition of the Globex ITC 2.1 channels on the MDP, a change was made in the Exchange ID that is transmitted for line integrity and control messages. The Exchange ID is now “ H” for Globex ITC 2.1 line integrity and control messages; prior to this change, these messages were sent with an Exchange ID of “M”. The line integrity and control messages affected by this change relate to the market data being transmitted via Channel 38 – 43 and 200 – 207 of the MDP.