EARNINGS PER SHARE

12 Months Ended

Dec. 31, 2023

NOTE 6. EARNINGS PER SHARE

Basic and diluted net income (loss) per share are computed by dividing net income (loss) by the weighted-average number of common shares outstanding. Diluted net income (loss) per share reflects the dilutive effect of stock-based compensation.


	Years ended December 31,
	2023		2022		2021
Computation of Net Income per Share	(In millions, except per share data)
Net income	$	452.0	$	1,326.9	$	1,296.7
Net loss attributable to noncontrolling interests	(8.2)		—		—
Net income attributable to Olin Corporation	460.2		1,326.9		1,296.7
Basic shares	125.9		144.9		159.1
Basic net income attributable to Olin Corporation per share	$	3.66	$	9.16	$	8.15
Diluted shares:
Basic shares	125.9		144.9		159.1
Stock-based compensation	2.9		3.6		3.9
Diluted shares	128.8		148.5		163.0
Diluted net income attributable to Olin Corporation per share	$	3.57	$	8.94	$	7.96

The computation of dilutive shares from stock-based compensation does not include 1.2 million, 0.8 million and 0.1 million shares in 2023, 2022 and 2021, respectively, as their effect would have been anti-dilutive.