Implementation Of Dynamic Listing Of Strike Prices - Effective Monday, March 26, 2007

Market Data Advisory Notices

To	Market Data Distributors
From	Market Data Operations
Subject	Implementation Of Dynamic Listing Of Strike Prices - Effective Monday, March 26, 2007
Notice Date	2007-03-12
Notice Number	Q2007-074
Effective Date	2007-03-12
*On Monday, March 26, 2007, CME^® will begin allowing for the dynamic listing of out-of-the-current range strike prices for selected equity and foreign exchange options from the Open Outcry* venue only (Trading Floor only). New Procedure Per the new procedure, customers may request the listing of an out-of-range strike price at regularly defined strike price intervals. Once requested, CME Trading Floor Operations staff will list the strike price for same day trading. ITC 2.1 Impact The dynamically listed strike prices will be disseminated as Category Code “Z” messages, which are generated twice per day. Trading activity in dynamically listed strikes will be transmitted as it occurs, in the Category Code “N” message. Distributors should be aware that trading activity could very well precede receipt of the “Z” message. Thank you.