
	Initial Listing Revenues			Listing of Additional Shares Revenues			Annual Renewal and Other Revenues			Market Technology Revenues ⁽²⁾			Total
							(in millions)
Balance at January 1, 2011	$	42		$	83		$	21		$	146		$	292
Additions ⁽¹⁾		10			33			207			12			262
Amortization ⁽¹⁾		(12	)		(30	)		(169	)		(31	)		(242	)
Translation adjustment		—			—			—			(2	)		(2	)

Balance at September 30, 2011	$	40		$	86		$	59		$	125		$	310


Balance at January 1, 2010	$	46		$	76		$	18		$	125		$	265
Additions ⁽¹⁾		10			36			203			29			278
Amortization ⁽¹⁾		(14	)		(29	)		(159	)		(19	)		(221	)
Translation adjustment		—			—			—			3			3

Balance at September 30, 2010	$	42		$	83		$	62		$	138		$	325

⁽¹⁾	The additions and amortization for initial listing revenues, listing of additional shares revenues and annual renewal and other revenues primarily reflects Issuer Services revenues from U.S. listing revenues.

⁽²⁾

Market Technology deferred revenues include revenues from delivered client contracts in the support phase charged during the period. Under contract accounting, where customization and significant modifications to the software are made to meet the needs of our customers, total revenues, as well as costs incurred, are deferred until significant modifications are completed and delivered. Once delivered, deferred revenue and the related deferred costs are recognized over the post contract support period. We have included the deferral of costs in other current assets and other non-current assets in the Condensed Consolidated Balance Sheets. The amortization of Market Technology deferred revenue primarily includes revenues earned from client contracts recognized during the period.