EARNINGS PER SHARE

6 Months Ended

Jun. 30, 2013

EARNINGS PER SHARE [Abstract]

EARNINGS PER SHARE

Note 2: EARNINGS PER SHARE

The following table provides further share information used in calculating our earnings per share for the periods presented herein. Basic earnings per share was calculated by dividing net income attributable to AMCOL shareholders by the weighted average number of common shares outstanding during each period. Diluted earnings per share was calculated by dividing net income attributable to AMCOL shareholders by the weighted average common shares outstanding after consideration of the dilutive effect of stock compensation awards outstanding during each period.

	Six Months Ended				Three Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
Weighted average number of common shares outstanding		32,402,571		32,005,514		32,425,798		32,035,503
Dilutive impact of stock based compensation		279,361		305,042		277,434		298,002
Weighted average number of common and common equivalent shares outstanding for the period		32,681,932		32,310,556		32,703,232		32,333,505
Number of common shares outstanding at the end of the period		32,371,588		31,920,554		32,371,588		31,920,554
Weighted average number of anti-dilutive shares excluded from the computation of diluted earnings per share		266,801		646,046		318,858		701,099