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Earnings per share | 9 Months Ended
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Jul. 31, 2025
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Earnings per share | Note 12. Earnings per share
|  | For the three months ended |  |  |  |  |  | For the nine months ended |
$ millions, except number of shares and per share amounts |  | 2025 Jul. 31 |  |  | 2025 Apr. 30 |  |  | 2024 Jul. 31 |  |  |  |  |  | 2025 Jul. 31 |  |  | 2024 Jul. 31 |
Basic earnings per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to equity shareholders |  | $ | 2,094 |  |  | $ | 1,998 |  |  | $ | 1,786 |  |  |  |  |  |  | $ | 6,255 |  |  | $ | 5,241 |
Less: Preferred share dividends and distributions on other equity instruments |  |  | 82 |  |  |  | 78 |  |  |  | 63 |  |  |  |  |  |  |  | 248 |  |  |  | 191 |
Net income attributable to common shareholders |  | $ | 2,012 |  |  | $ | 1,920 |  |  | $ | 1,723 |  |  |  |  |  |  | $ | 6,007 |  |  | $ | 5,050 |
Weighted-average common shares outstanding (thousands) |  |  | 932,258 |  |  |  | 938,495 |  |  |  | 943,467 |  |  |  |  |  |  |  | 937,588 |  |  |  | 937,696 |
Basic earnings per share |  | $ | 2.16 |  |  | $ | 2.05 |  |  | $ | 1.83 |  |  |  |  |  |  | $ | 6.41 |  |  | $ | 5.39 |
Diluted earnings per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to common shareholders |  | $ | 2,012 |  |  | $ | 1,920 |  |  | $ | 1,723 |  |  |  |  |  |  | $ | 6,007 |  |  | $ | 5,050 |
Weighted-average common shares outstanding (thousands) |  |  | 932,258 |  |  |  | 938,495 |  |  |  | 943,467 |  |  |  |  |  |  |  | 937,588 |  |  |  | 937,696 |
Add: Stock options potentially exercisable (1) (thousands) |  |  | 5,260 |  |  |  | 4,253 |  |  |  | 2,317 |  |  |  |  |  |  |  | 4,991 |  |  |  | 1,596 |
Weighted-average diluted common shares outstanding (thousands) |  |  | 937,518 |  |  |  | 942,748 |  |  |  | 945,784 |  |  |  |  |  |  |  | 942,579 |  |  |  | 939,292 |
Diluted earnings per share |  | $ | 2.15 |  |  | $ | 2.04 |  |  | $ | 1.82 |  |  |  |  |  |  | $ | 6.37 |  |  | $ | 5.38 |
(1) | Excludes average options outstanding of nil (April 30, 2025 : 2,422,512; July 31, 2024: 2,553,244) with a weighted-average exercise price of nil (April 30, 2025: $94.35; July 31, 2024: $70.05) for the quarter ended July 31, 2025, and average options outstanding of 2,150,302 (July 31, 2024: 2,553,244) with a weighted-average price of $94.35 (July 31, 2024: $70.05) for the nine months ended July 31, 2025, as the options’ exercise prices were greater than the average market price of CIBC’s common shares.

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