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.
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