Earnings Per Share of Common Stock

3 Months Ended

Mar. 31, 2017

Earnings Per Share of Common Stock

8. Earnings Per Share of Common Stock

The following is a reconciliation of the earnings and share data used in the basic and diluted earnings per share computations for the three months ended March 31, 2017 and 2016:

	Three Months Ended March 31,
	2017		2016
	($ in millions, except share amounts)
Net earnings available to Alleghany stockholders	$	149.2	$	154.5
Effect of dilutive securities		-		(0.4)
Income available to common stockholders for diluted earnings per share	$	149.2	$	154.1
Weighted average common shares outstanding applicable to basic earnings per share		15,413,698		15,452,191
Effect of dilutive securities		6,770		12,298
Adjusted weighted average common shares outstanding applicable to diluted earnings per share		15,420,468		15,464,489

57,756 and 57,123 contingently issuable shares were potentially available during the first three months of 2017 and 2016, respectively, but were not included in the diluted earnings per share computations because the impact was anti-dilutive to the earnings per share calculation.