5. PER SHARE INFORMATION

The following tables reconcile the components of basic and diluted earnings per share for the three and nine months ended June 30, 2019, and 2018:



	Three Months Ended June 30,
	2019		2018
Numerator:
Net income attributable to common stockholders of IES Holdings, Inc.	$	10,826	$	8,513
Net income attributable to restricted stockholders of IES Holdings, Inc.		146		3
Net income attributable to IES Holdings, Inc.	$	10,972	$	8,516

Denominator:
Weighted average common shares outstanding — basic		21,043,425		21,200,635
Effect of dilutive stock options and non-vested restricted stock		257,810		131,248
Weighted average common and common equivalent shares outstanding — diluted		21,301,235		21,331,883

Earnings per share attributable to IES Holdings, Inc.:
Basic	$	0.52	$	0.40
Diluted	$	0.52	$	0.40

	Nine Months Ended June 30,
	2019		2018
Numerator:
Net income (loss) attributable to common stockholders of IES Holdings, Inc.	$	23,210	$	(18,788	)
Decrease in noncontrolling interest		—		(44	)
Net income (loss) attributable to restricted stockholders of IES Holdings, Inc.		135		—
Net income (loss) attributable to IES Holdings, Inc.	$	23,345	$	(18,832	)

Denominator:
Weighted average common shares outstanding — basic		21,139,697		21,193,306
Effect of dilutive stock options and non-vested restricted stock		242,481		—
Weighted average common and common equivalent shares outstanding — diluted		21,382,178		21,193,306

Earnings (loss) per share attributable to IES Holdings, Inc.:
Basic	$	1.10	$	(0.89)
Diluted	$	1.09	$	(0.89)

When an entity has a net loss, it is prohibited from including potential common shares in the computation of diluted per share amounts. Accordingly, we have utilized basic shares outstanding to calculate both basic and diluted loss per share for the nine months ended June 30, 2018. The number of potential anti-dilutive shares excluded from the calculation was 211,669 shares. For the three months ended June 30, 2018, and the three and nine months ended June 30, 2019, the average price of our common shares exceeded the exercise price of all of our outstanding options; therefore, all of our outstanding stock options were included in the computation of fully diluted earnings per share.