Basic and diluted earnings per share was calculated as follows (in thousands, except per share data):

Three months ended June 30,

Six months ended June 30,

(in US$ thousands, except per share data)

2022

2021

2022

2021

Numerator:

Net income (loss)

$

291,995

$

(55,085)

$

561,893

$

(96,057)

Less: Net loss attributable to Non-controlling interest

—

(2)

Net income (loss) attributable to Company stockholders

$

291,995

$

(55,085)

$

561,893

$

(96,055)

Denominator (in thousands):

Weighted-average shares of common stock outstanding

167,645

152,877

167,645

145,633

Effects of dilutive shares

168

—

192

—

Weighted average diluted shares of common stock outstanding

167,813

152,877

167,837

145,633

Earnings (Loss) Per Share (US$):

Basic

1.74

(0.36)

3.35

(0.66)

Dilutive

1.74

(0.36)

3.35

(0.66)