Note 20
Earnings per share

Basic earnings per share is calculated by dividing income by the weighted-average number of shares outstanding during the year. Diluted earnings per share is calculated by dividing income by the weighted-average number of shares outstanding during the year, assuming that all potentially dilutive securities were exercised, if dilutive. Potentially dilutive securities comprise outstanding written call options and outstanding options and shares granted subject to certain conditions under the Company’s share-based payment arrangements. In 2017, 2016 and 2015, outstanding securities representing a maximum of 31 million, 87 million and 78 million shares, respectively, were excluded from the calculation of diluted earnings per share as their inclusion would have been anti-dilutive.

Basic earnings per share:

Basic earnings per share:

 

 

 

($ in millions, except per share data in $)

2017

2016

2015

 

 

 

 

Amounts attributable to ABB shareholders:

 

 

 

Income from continuing operations, net of tax

2,219

1,883

1,930

Income (loss) from discontinued operations, net of tax

(6)

16

3

Net income

2,213

1,899

1,933

 

 

 

 

Weighted-average number of shares outstanding (in millions)

2,138

2,151

2,226

 

 

 

 

Basic earnings per share attributable to ABB shareholders:

 

 

 

Income from continuing operations, net of tax

1.04

0.88

0.87

Income (loss) from discontinued operations, net of tax

Net income

1.04

0.88

0.87

Diluted earnings per share:

Diluted earnings per share:

 

 

 

($ in millions, except per share data in $)

2017

2016

2015

 

 

 

 

Amounts attributable to ABB shareholders:

 

 

 

Income from continuing operations, net of tax

2,219

1,883

1,930

Income (loss) from discontinued operations, net of tax

(6)

16

3

Net income

2,213

1,899

1,933

 

 

 

 

Weighted-average number of shares outstanding (in millions)

2,138

2,151

2,226

Effect of dilutive securities:

 

 

 

Call options and shares

10

3

4

Adjusted weighted-average number of shares outstanding (in millions)

2,148

2,154

2,230

 

 

 

 

Diluted earnings per share attributable to ABB shareholders:

 

 

 

Income from continuing operations, net of tax

1.03

0.87

0.87

Income (loss) from discontinued operations, net of tax

0.01

Net income

1.03

0.88

0.87