| Schedule of basic and diluted net income per share |
| | | | | | | | | | | | Year Ended December 31, | | | 2019 | | 2020 | | 2021 | | | | (In US$ thousands, except per share data) | Basic net income per share calculation: | | | | | | | | | | Numerator: | | | | | | | | | | Net income attributable to Weibo’s shareholders | | | 494,675 | | | 313,364 | | | 428,319 | Denominator: | | | | | | | | | | Weighted average ordinary shares outstanding | | | 225,452 | | | 226,921 | | | 228,814 | Basic net income per share attributable to Weibo’s shareholders | | | 2.19 | | | 1.38 | | | 1.87 | Diluted net income per share calculation: | | | | | | | | | | Numerator: | | | | | | | | | | Net income attributable to Weibo’s shareholders for calculating diluted net income per share | | | 494,675 | | | 313,364 | | | 428,319 | Denominator: | | | | | | | | | | Weighted average ordinary shares outstanding | | | 225,452 | | | 226,921 | | | 228,814 | Effects of dilutive securities | | | | | | | | | | Stock options | | | 153 | | | 71 | | | 68 | Unvested restricted share units | | | 807 | | | 645 | | | 1,324 | Shares used in computing diluted net income per share attributable to Weibo’s shareholders | | | 226,412 | | | 227,637 | | | 230,206 | Diluted net income per share attributable to Weibo’s shareholders | | | 2.18 | | | 1.38 | | | 1.86 |
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