Segment and Geographic Information (Tables)

3 Months Ended

Mar. 31, 2013

Notes to Consolidated Financial Statements

		Three months ended
		March 31,
		2013			2012
Net revenues:
Electronic brokerage	$	195.3		$	159.3
Market making		23.6			142.4
Corporate and eliminations		(2.8	)		2.2
Total net revenues	$	216.1		$	303.9

Income before income taxes:
Electronic brokerage	$	111.0		$	83.4
Market making		(29.0	)		66.0
Corporate and eliminations		0.2			0.3
Total income before income taxes	$	82.2		$	149.7

		March 31,			December 31,
		2013			2012
Segment assets:
Electronic brokerage	$	27,598.7		$	25,741.5
Market making		13,461.1			12,730.8
Corporate and eliminations		(5,915.7	)		(5,272.7	)
Total assets	$	35,144.1		$	33,199.6

		Three months ended
		March 31,
		2013			2012
Net revenues:
United States	$	138.6		$	232.4
International		80.2			70.6
Corporate and eliminations		(2.7	)		0.9
Total net revenues	$	216.1		$	303.9

Income before income taxes:
United States	$	51.9			134.6
International		29.9			16.0
Corporate and eliminations		0.4			(0.9	)
Total income before income taxes	$	82.2		$	149.7

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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