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Earnings Per Share | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share |
Earnings Per Share | Note 8—Earnings Per Share ​ Basic earnings per share (“EPS”) is computed by dividing net income attributable to Amphenol Corporation by the weighted average number of common shares outstanding. Diluted EPS is computed by dividing net income attributable to Amphenol Corporation by the weighted average number of outstanding common shares, including dilutive common shares, the dilutive effect of which relates to stock options. A reconciliation of the basic weighted average common shares outstanding to diluted weighted average common shares outstanding, along with the earnings per share (basic and diluted) for the years ended December 31, 2021, 2020 and 2019 is as follows (note - per share amounts may not add due to rounding): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(dollars and shares in millions, except per share data) |  | 2021 |  | 2020 |  | 2019
Net income attributable to Amphenol Corporation stockholders: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income from continuing operations attributable to Amphenol Corporation | ​ | $ | 1,569.4 | ​ | $ | 1,203.4 | ​ | $ | 1,155.0
Income from discontinued operations attributable to Amphenol Corporation, net of income taxes of ($3.2) for 2021 | ​ | ​ | 21.4 | ​ | ​ | — | ​ | ​ | —
Net income attributable to Amphenol Corporation | ​ | $ | 1,590.8 | ​ | $ | 1,203.4 | ​ | $ | 1,155.0
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding — Basic | ​ |  | 597.9 | ​ |  | 596.1 | ​ |  | 595.0
Effect of dilutive stock options | ​ |  | 27.6 | ​ |  | 18.9 | ​ |  | 20.9
Weighted average common shares outstanding — Diluted | ​ |  | 625.5 | ​ |  | 615.0 | ​ |  | 615.9
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income per common share attributable to Amphenol Corporation — Basic: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Continuing operations | ​ | $ | 2.62 | ​ | $ | 2.02 | ​ | $ | 1.94
Discontinued operations, net of income taxes | ​ | ​ | 0.04 | ​ | ​ | — | ​ | ​ | —
Net income attributable to Amphenol Corporation — Basic | ​ | $ | 2.66 | ​ | $ | 2.02 | ​ | $ | 1.94
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income per common share attributable to Amphenol Corporation — Diluted: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Continuing operations | ​ | $ | 2.51 | ​ | $ | 1.96 | ​ | $ | 1.88
Discontinued operations, net of income taxes | ​ | ​ | 0.03 | ​ | ​ | — | ​ | ​ | —
Net income attributable to Amphenol Corporation — Diluted | ​ | $ | 2.54 | ​ | $ | 1.96 | ​ | $ | 1.88
​ Note: As discussed in further detail in Note 1 herein, all current and prior year data presented in the table above, including the number of shares and per share information, have been adjusted to reflect the effect of the stock split that went into effect in March 2021. ​ Excluded from the computations above were anti-dilutive common shares (primarily related to outstanding stock options) of 3.5 million, 9.4 million and 14.2 million for the years ended December 31, 2021, 2020 and 2019, respectively.

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