Earnings Per Share of Common Stock (Tables)

9 Months Ended

Sep. 30, 2016

Reconciliation of Earnings and Share Data used in Basic and Diluted Earnings per Share Computations

The following is a reconciliation of the earnings and share data used in the basic and diluted earnings per share computations for the three and nine months ended September 30, 2016 and 2015:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
	($ in millions, except share amounts)
Net earnings available to Alleghany stockholders	$	155.8	$	96.5	$	387.4	$	404.2
Effect of dilutive securities		-		-		-		0.1
Income available to common stockholders for diluted earnings per share	$	155.8	$	96.5	$	387.4	$	404.3
Weighted average common shares outstanding applicable to basic earnings per share		15,438,399		15,900,759		15,443,150		15,969,984
Effect of dilutive securities		-		-		6,330		8,155
Adjusted weighted average common shares outstanding applicable to diluted earnings per share		15,438,399		15,900,759		15,449,480		15,978,139