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EARNINGS PER SHARE | 12 Months Ended
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Dec. 31, 2014
EARNINGS PER SHARE |
EARNINGS PER SHARE | 17. EARNINGS PER SHARE The following table sets forth the computation of basic and diluted earnings (loss) per share for the years indicated:
|  | Years Ended December 31, |
|  | 2012 |  | 2013 |  | 2014 |
|  | (In U.S. dollars, except share and per share data) |
Numerator: |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to Canadian Solar Inc.—basic |  | $ | (195,468,691 | ) | $ | 31,659,276 |  | $ | 239,501,317 |
Dilutive effect of convertible notes interest |  |  | — |  |  | — |  |  | 4,641,363 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income attributable to Canadian Solar Inc.—diluted |  |  | (195,468,691 | ) |  | 31,659,276 |  |  | 244,142,680 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Denominator: |  |  |  |  |  |  |  |  |  |
Denominator for basic calculation—weighted average number of common shares—basic |  |  | 43,190,778 |  |  | 46,306,739 |  |  | 54,408,037 |
Diluted effects of share number from share options and RSUs |  |  | — |  |  | 4,081,545 |  |  | 2,051,601 |
Dilutive effects of share number from convertible notes |  |  | — |  |  | — |  |  | 2,894,977 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Denominator for diluted calculation—weighted average number of common shares—diluted |  |  | 43,190,778 |  |  | 50,388,284 |  |  | 59,354,615 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic earnings (loss) per share |  | $ | (4.53 | ) | $ | 0.68 |  | $ | 4.40 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted earnings (loss) per share |  | $ | (4.53 | ) | $ | $ 0.63 |  | $ | 4.11 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
The following table sets forth anti-dilutive shares excluded from the computation of diluted earnings (loss) per share for the years indicated.
|  | Years Ended December 31, |
|  | 2012 |  | 2013 |  | 2014 |
Share options and RSUs |  |  | 4,288,008 |  |  | 434,529 |  |  | 95,422 |
Warrant |  |  | 4,273,102 |  |  | — |  |  | — |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  |  | 8,561,110 |  |  | 434,529 |  |  | 95,422 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

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