Earnings Per Share

The following table presents calculations of net income (loss) per share of common stock:



	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Net income (loss) attributable to Chart Industries, Inc.	$	12.3	$	2.8	$	18.1	$	(0.1	)
Net income (loss) attributable to Chart Industries, Inc. per common share:
Basic	$	0.40	$	0.09	$	0.59	$	—
Diluted ⁽¹⁾	$	0.38	$	0.09	$	0.57	$	—

Weighted average number of common shares outstanding — basic	30.95		30.73		30.93		30.71
Incremental shares issuable upon assumed conversion and exercise of share-based awards	0.84		0.55		0.81		—
Incremental shares issuable due to dilutive effect of the 2024 Notes	0.29		—		—		—
Weighted average number of common shares outstanding — diluted	32.08		31.28		31.74		30.71

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⁽¹⁾	Zero incremental shares from share-based awards are included in the computation of diluted net loss per share for periods in which a net loss occurs because to do so would be anti-dilutive.

Diluted earnings per share does not reflect the following potential common shares as the effect would be anti-dilutive:



	Three Months Ended June 30,		Six Months Ended June 30,
	2018	2017	2018	2017
Share-based awards	0.26	0.69	0.27	1.74
Convertible note hedge ⁽¹⁾	0.29	—	—	—
Warrants	5.18	3.37	5.18	3.37
Total anti-dilutive securities	5.73	4.06	5.45	5.11

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⁽¹⁾	The convertible note hedge offsets any dilution upon actual conversion of the 2024 Notes up to a common stock price of $71.775 per share. For further information, refer to Note 5, “Debt and Credit Arrangements.”