Harmonizing CBOT Stock Index Futures and Options Trading Hours and Price Limit Policies

Market Data Advisory Notices

To	Market Data Distributors
From	Market Data Operations
Subject	Harmonizing CBOT Stock Index Futures and Options Trading Hours and Price Limit Policies - Effective Sunday, January 13, 2008
Notice Date	2007-12-14
Notice Number	Q2007-306
Effective Date	2008-01-13
Effective *Sunday, January 13, 2008* (trade date of Monday, January 14, 2008), CME Group will implement new Regular Trading Hours (RTH) and new Electronic Trading Hours (ETH) of legacy CBOT stock index futures and options will be harmonized with legacy CME stock index futures and options. In addition, daily price limit rules of legacy CBOT stock index futures will also be harmonized. Please view the attached memo for more details.