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Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. | 6 Months Ended
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Jun. 30, 2024
Earnings Per Share [Abstract] |
Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. | Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. The computation of shares used in calculating basic and diluted net income per share is as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
(In millions) | 2024 |  | 2023 |  | 2024 |  | 2023
Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - basic | 582.7 |  |  | 615.4 |  |  | 586.8 |  |  | 621.2 |
Common stock equivalents | 2.7 |  |  | 3.8 |  |  | 3.3 |  |  | 4.1 |
Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - diluted | 585.4 |  |  | 619.2 |  |  | 590.1 |  |  | 625.3 |
For the three months ended June 30, 2024 and 2023, stock options for 66 thousand and 911 thousand shares, respectively, were excluded from the calculation of weighted-average outstanding shares - diluted because their impact was anti-dilutive. For the six months ended June 30, 2024 and 2023, stock options for 51 thousand and 984 thousand shares, respectively, were excluded from the calculation of weighted-average outstanding shares - diluted because their impact was anti-dilutive.

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