CORPORATE EVENT: ATV Stock Symbol Change.

Clearing House Advisory Notices

To	Clearing Member Firms
From	CME Clearing
Subject	CORPORATE EVENT: ATV Stock Symbol Change.
Notice Date	2008-08-06
Notice Number	08-176
Effective Date	2008-08-07
On August 7, 2008, the stock symbol "ATVID" will change to "ATVI." The OneChicago ATVI1C futures symbol will not change. ATVI1C will stay the same. CME Clearing Code ATV remains the same. This action will be coordinated with the Options Clearing Corporation. If you have any questions regarding the information provided in the document, please call CME Clearing Risk Management hotline at (312) 648-3888. For the printer-friendly version of this advisory, please click here.