In light of recent market events and to facilitate the migration for our customers, CME Group is extending the original October FIX/FAST migration deadline to November 14, 2008 . As a result, customers must complete their migration to FIX/FAST from the legacy RLC format market data by November 14, 2008. Please note, those customer that fail to migrate by this date will be surcharged retroactively back to the original deadline of October 17, 2008, which was announced in October 2007.

The support surcharges schedule remains as previously communicated. Surcharges will accrue beginning the week of October 20, but will be assessed only if the customer has not migrated to FIX/FAST by Sunday, November 16.

• $2,000 per week in October
• $4,000 per week in November
• $6,000 per week in December

The legacy RLC format market data will be eliminated no later than December 26, 2008. Please note that we cannot extend RLC broadcast beyond the December deadline, due to internal system dependencies. The FIX/FAST Software Development Kit, including Market Data Platform channel definitions and reference code, is available  online .

The mandatory certification for FIX/FAST can be completed through AutoCert+ in Certification. More information is available in the  AutoCert+ User Guide . FIX/FAST is currently available for customer testing in the New Release and Certification environments.

Please contact Market Data Operations (MDO) at mdo@cmegroup.com, if you have any questions concerning this notice.