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Net Income per Share | 12 Months Ended
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Dec. 31, 2023
Net Income per Share |
Net Income per Share | 12. Net Income per Share Basic net income per share is computed using the weighted average number of the ordinary shares outstanding during the period. Options and RSUs are not considered outstanding in the computation of basic earnings per share (“EPS”). Diluted EPS is computed using the weighted average number of ordinary shares and potential ordinary shares outstanding during the period under the treasury stock method. For the years ended December 31, 2021, 2022 and 2023, options to purchase ordinary shares and RSUs of 1.4 million, 1.2 million and 2.6 million were recognized as dilutive factors and included in the calculation of diluted net income per share, respectively. For the years ended December 31, 2021, 2022 and 2023, options and RSUs which were anti-dilutive and excluded from the calculation of diluted net income per share were 0.4 million, 6.5 million and 7.4 million, respectively. For the years ended December 31, 2021, 2022 and 2023, 6.8 million, 5.9 million and nil shares convertible from the convertible senior notes were anti-dilutive and excluded from the calculation of diluted net income per share, respectively. The following table sets forth the computation of basic and diluted net income per share for the periods presented: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2021 |  | 2022 |  | 2023
​ | ​ | (In US$ thousands, except share data and per share data)
Basic net income per share calculation: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Numerator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income attributable to Weibo’s shareholders | ​ | $ | 428,319 | ​ | $ | 85,555 | ​ | $ | 342,598
Denominator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average ordinary shares outstanding | ​ | ​ | 228,814 | ​ | ​ | 235,164 | ​ | ​ | 235,560
Basic net income per share attributable to Weibo’s shareholders | ​ | $ | 1.87 | ​ | $ | 0.36 | ​ | $ | 1.45
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted net income per share calculation: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Numerator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income attributable to Weibo | ​ | $ | 428,319 | ​ | $ | 85,555 | ​ | $ | 342,598
Add: Effect on interest expenses and amortized issuance cost of convertible senior notes | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 529
Net income attributable to Weibo’s shareholders for calculating diluted net income per share | ​ | ​ | 428,319 | ​ | ​ | 85,555 | ​ | ​ | 343,127
Denominator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average ordinary shares outstanding | ​ | ​ | 228,814 | ​ | ​ | 235,164 | ​ | ​ | 235,560
Effects of dilutive securities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Stock options | ​ | ​ | 68 | ​ | ​ | — | ​ | ​ | 14
Unvested restricted share units | ​ | ​ | 1,324 | ​ | ​ | 1,243 | ​ | ​ | 2,625
Convertible senior notes | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,775
Shares used in computing diluted net income per share attributable to Weibo’s shareholders | ​ | ​ | 230,206 | ​ | ​ | 236,407 | ​ | ​ | 239,974
Diluted net income per share attributable to Weibo’s shareholders | ​ | $ | 1.86 | ​ | $ | 0.36 | ​ | $ | 1.43
​

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