Net Income per Unit

9 Months Ended

Sep. 30, 2019

Basic net income per unit is derived by reducing net income for the 1% general partnership interest and dividing the remaining 99% by the basic weighted average number of limited partnership units outstanding for each period. Diluted net income per unit is derived by reducing net income for the 1% general partnership interest and dividing the remaining 99% by the total of the diluted weighted average number of limited partnership units outstanding for each period.



	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands, except per unit amounts)
Net income attributable to AB Unitholders	$	187,811	$	203,674	$	503,177	$	569,535

Weighted average limited partnership units outstanding – basic	268,567		269,603		268,131		269,783
Dilutive effect of compensatory options to buy AB Holding Units	36		245		52		282
Weighted average limited partnership units outstanding – diluted	268,603		269,848		268,183		270,065
Basic net income per AB Unit	$	0.69	$	0.75	$	1.86	$	2.09
Diluted net income per AB Unit	$	0.69	$	0.75	$	1.86	$	2.09

For both the three and nine months ended September 30, 2019, we excluded 29,056 options from the diluted net income computation due to their anti-dilutive effect. For the three and nine months ended September 30, 2018 , we excluded 824,245 options and 844,973 options, respectively, from the diluted net income computation due to their anti-dilutive effect.