Earnings Per Share

9 Months Ended

Jun. 30, 2016

11.Earnings Per Share

Basic earnings per share (EPS) excludes dilution and is computed by dividing net income available for common stockholders by the weighted average number of common shares outstanding for the period. Diluted EPS is computed by dividing net income attributable to AECOM by the weighted average number of common shares outstanding and potential common stock equivalent shares for the period. The Company includes as potential common shares the weighted average dilutive effects of outstanding stock options and restricted stock units using the treasury stock method. For the three and nine months ended June 30, 2016, options excluded from the calculation of potential common shares were not significant. The computation of diluted loss per share for the three and nine months ended June 30, 2015 excluded 1.6 million and 1.8 million, respectively, of potential common shares due to their antidilutive effect.

The following table sets forth a reconciliation of the denominators for basic and diluted earnings per share:

	Three Months Ended		Nine Months Ended
	June 30, 2016	June 30, 2015	June 30, 2016	June 30, 2015
	(in millions)
Denominator for basic earnings per share	154.9	151.7	154.3	148.2
Potential common shares	1.3	—	1.2	—

Denominator for diluted earnings per share	156.2	151.7	155.5	148.2