(Loss) Earnings Per Share

6 Months Ended

Jun. 30, 2020

The Company presents both basic and diluted earnings per share of common stock (“EPS”). Basic EPS is calculated by dividing net earnings attributable to the Company by the weighted average shares of common stock outstanding during the reporting period. Diluted EPS is calculated by dividing net earnings attributable to the Company by the weighted average shares of common stock and common equivalent stock outstanding during the reporting period.

The dilutive impact of stock-based compensation is calculated using the treasury stock method. The treasury stock method assumes that the Company uses the assumed proceeds from the exercise of awards to repurchase common stock at the average market price during the period. The assumed proceeds under the treasury stock method include the purchase price that the grantee will pay in the future and compensation cost for future service that the Company has not yet recognized. The dilutive effects of performance-based stock awards described in the Note 14, "Stock-Based Compensation," to the Condensed Consolidated Financial Statements are included in the computation of diluted earnings

per share at the level the related performance criteria are met through the respective balance sheet date. The 112,100 of adjusted earnings per share performance share units and the 132,600 of relative revenue growth performance share units granted in 2020 were excluded from the computation of the diluted earnings per share for the six months ended June 30, 2020 because the related performance criteria had not been met as of the balance sheet date.

The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share of common stock:


	Three Months Ended June 30,						Six Months Ended June 30,
(in millions, except per share amounts)	2020		2019		2020		2019
Basic earnings per share:
Net (loss) earnings attributable to BorgWarner Inc.	$	(98)	$	172	$	31	$	332
Weighted average shares of common stock outstanding	206.0		205.7		205.8		206.1
Basic (loss) earnings per share of common stock	$	(0.47)	$	0.84	$	0.15	$	1.61

Diluted (loss) earnings per share:
Net (loss) earnings attributable to BorgWarner Inc.	$	(98)	$	172	$	31	$	332

Weighted average shares of common stock outstanding	206.0		205.7		205.8		206.1



Effect of stock-based compensation*	—		1.1		0.6		0.9

Weighted average shares of common stock outstanding including dilutive shares	206.0		206.8		206.4		207.0
Diluted (loss) earnings per share of common stock	$	(0.47)	$	0.83	$	0.15	$	1.60

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*The Company had a loss for the three months ended June 30, 2020. As a result, diluted loss per share is the same as basic loss per share in the period, as any dilutive securities would reduce the loss per share.