Earnings Per Share of Common Stock

9 Months Ended

Sep. 30, 2020

8. Earnings Per Share of Common Stock

The following table presents 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, 2020 and 2019:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020			2019
	($ in millions, except share amounts)
Net earnings (losses) available to Alleghany stockholders	$	126.5	$	90.4	$	(57.3	)	$	826.1
Effect of dilutive securities		—		—		(6.2	)		—
Income available to common stockholders for diluted earnings per share	$	126.5	$	90.4	$	(63.5	)	$	826.1

Weighted average common shares outstanding applicable to basic earnings per share		14,275,487		14,422,581		14,309,010			14,447,794
Effect of dilutive securities		—		—		23,310			10,956
Adjusted weighted average common shares outstanding applicable to diluted earnings per share		14,275,487		14,422,581		14,332,320			14,458,750

Contingently issuable shares⁽¹⁾						32,652			50,556

(1)	Contingently issuable shares were potentially available in the periods presented, but were not included in the diluted earnings per share computations because the impact was anti-dilutive to the earnings per share calculation.