The following table sets forth the computation of basic and diluted earnings per share (in millions except shares in thousands and per share data):

	Years Ended December 31,
	2020		2019		2018

Net income	$	37	$	36	$	405

Shares used in computing basic earnings per share		125,348		122,722		122,499

Effect of dilutive securities:
Dilutive effect of common stock equivalents		976		516		125
Shares used in computing diluted earnings per share		126,324		123,238		122,624

Earnings per share:
Basic	$	0.30	$	0.29	$	3.31
Diluted	$	0.29	$	0.29	$	3.30

On October 29, 2018, the date of consummation of the Spin-Off, 122,499 shares of the Company’s Common Stock, par value $0.001 per share, were distributed to Honeywell shareholders of record as of October 16, 2018. For the 2018 year to date calculation, these shares are treated as issued and outstanding from January 1, 2018 for purposes of calculating historical basic earnings per share. For December 31, 2020 and 2019, this calculation excludes 900 and 615 treasury shares, respectively.

Diluted Earnings Per Share is computed based upon the weighted average number of common shares outstanding for the year plus the dilutive effect of common stock equivalents using the treasury stock method and the average market price of the Company’s common stock for the period. For the year ended December 31, 2018, the average market price of the Company’s common stock was calculated from the Spin-Off date to December 31, 2018. In periods where the Company has a net loss, no dilutive common shares are included in the calculation for diluted shares as they are considered anti-dilutive. For the year ended December 31, 2020, average options and other rights to purchase approximately 2.5 million shares of common stock were outstanding, all of which were anti-dilutive during the year ended December 31, 2020, and therefore excluded from the computation of diluted earnings per common share. Additionally, an average of approximately 0.5 million shares of performance-based unit awards are excluded from the computation of diluted earnings per common share for the year ended December 31, 2020 as the contingency has not been satisfied at December 31, 2020. For the year ended December 31, 2019, average option and other rights to purchase approximately 2.8 million shares of common stock were outstanding, all of which were anti-dilutive during the year ended December 31, 2019, and therefore excluded from the computation of diluted earnings per common share. Additionally, an average of approximately 0.2 million shares of performance-based unit awards are excluded from the computation of diluted earnings per common share for the year ended December 31, 2019 as the contingency has not been satisfied at December 31, 2019.