March 24, 2008 - The following table outlines the companies that will be added to the Markit LCDX.NA Index. The changes to the index will be effective as of the roll date on April 8, 2008.

INDEX	ADDED	REMOVED
Markit LCDX NA Series 10	Texas Competitive Electric Holdings Company LLC	Freeport-McMoRan Copper & Gold Inc.
	Alltel Communications, Inc.	Knight Inc.
	Harrah's Operating Company, Inc.	Claire's Stores, Inc.
	Calpine Corporation	Insight Midwest Holdings LLC
	Bausch & Lomb Incorporated	Solo Cup Company
	Level 3 Financing, Inc.*	Burlington Coat Factory Warehouse Corporation
	Mylan Inc.	Centennial Cellular Operating Co. LLC
	Rite Aid Corporation	Education Management LLC

*Please note that Clear Channel Communications, Inc. did not close in time to be added to the LCDX. Level 3 Financing, Inc. has been chosen as the replacement entity in the LCDX Index.

Removals from the Markit LCDX North America Index Set to Roll on April 8, 2008

March 20, 2008 - The following table outlines the companies that will be removed from the Markit LCDX.NA Index. The changes to the index will be effective as of the roll date on April 8, 2008. Companies that will be added to the index are expected to be announced within the next few days.

INDEX	REMOVED
Markit LCDX NA Series 10	Freeport-McMoRan Copper & Gold Inc.
	Knight Inc.
	Claire's Stores, Inc.
	Insight Midwest Holdings LLC
	Solo Cup Company
	Burlington Coat Factory Warehouse Corporation
	Centennial Cellular Operating Co. LLC
	Education Management LLC