Earnings per share

6 Months Ended

Sep. 30, 2021

Basic

Basic earnings per share is calculated by dividing the income attributable to ordinary shareholders of the parent by the weighted average number of ordinary shares in issue during the period.

The net income and weighted average number of shares used in the calculation of basic and diluted earnings per share are as follows (in thousands, except per share data):


	Three Months Ended September 30,				Six Months Ended September 30,
	2020		2021		2020		2021
Numerator (basic)
Net income attributable to ordinary shareholders	$	3,452	$	1,299	$	5,874	$	4,830
Denominator (basic)
Weighted-average number of ordinary shares in issue	548,008		552,386		547,569		552,124
Basic earnings per share	$	0.01	$	0.002	$	0.01	$	0.01

American Depository Shares*:
Net income attributable to ordinary shareholders	$	3,452	$	1,299	$	5,874	$	4,830
Weighted-average number of American Depository Shares in issue	21,920		22,095		21,903		22,085
Basic earnings per American Depository share	$	0.16	$	0.06	$	0.27	$	0.22
*One American Depository Share is the equivalent of 25 ordinary shares.

Diluted

Diluted earnings per share is calculated by dividing the diluted income attributable to ordinary shareholders by the diluted weighted average number of ordinary shares in issue during the period. Stock options, retention shares and stock appreciation rights granted to directors and employees are considered to be potential ordinary shares. They have been included in the determination of diluted earnings per share if the required target share price or annual shareholder return hurdles (as applicable) would have been met based on the performance up to the reporting date, and to the extent to which they are dilutive.


	Three Months Ended September 30,				Six Months Ended September 30,
	2020		2021		2020		2021
Numerator (diluted)
Diluted net income attributable to ordinary shareholders	$	3,452	$	1,299	$	5,874	$	4,830
Denominator (diluted)
Weighted-average number of ordinary shares in issue	548,008		552,386		547,569		552,124
Adjusted for:
– potentially dilutive effect of stock appreciation rights	9,339		11,778		9,517		11,809
– potentially dilutive effect of restricted share units	599		1,458		618		1,389
– potentially dilutive effect of stock options	1,005		—		1,125		—
Diluted-weighted average number of ordinary shares in issue	558,951		565,622		558,829		565,322
Diluted earnings per share	$	0.01	$	0.002	$	0.01	$	0.01

American Depository Shares*:
Diluted net income attributable to ordinary shareholders	$	3,452	$	1,299	$	5,874	$	4,830
Diluted weighted-average number of American Depository Shares in issue	22,358		22,625		22,353		22,613
Diluted earnings per American Depository share	$	0.15	$	0.06	$	0.26	$	0.21
*One American Depository Share is the equivalent of 25 ordinary shares.