Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2011

Earnings per Share

Summary of the earnings per share calculation

	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2010		2011		2010
Net income attributable to Bruker Corporation, as reported	$	22.1	$	22.6	$	33.4	$	38.7
Weighted average shares outstanding:
Weighted average shares outstanding-basic	165.4		164.3		165.3		164.2
Effect of dilutive securities:
Stock options and restricted stock	1.9		1.5		1.7		1.5
	167.3		165.8		167.0		165.7
Net income per common share attributable to Bruker Corporation shareholders:
Basic	$	0.13	$	0.14	$	0.20	$	0.24
Diluted	$	0.13	$	0.14	$	0.20	$	0.23