Earnings per share

12 Months Ended

Dec. 31, 2023

4.6 Earnings per share

Basic earnings per share (EPS) is calculated by dividing On’s net income or loss for the period by the weighted average number of ordinary shares outstanding during the year.

Diluted EPS is calculated by dividing On’s net income or loss for the period by the weighted average number of ordinary shares outstanding during the year plus the weighted average number of ordinary shares that would be issued at conversion of all the dilutive potential ordinary shares into ordinary shares. Dilutive effects arise from equity settled shares from the Company's share-based plans. These shares are included even if the service conditions are not met, or respective performance conditions were fulfilled at the end of the reporting period. For the period ended December 31, 2021, the Company excluded 5,278,761 weighted shares from the Class A diluted EPS calculation and 2,099,551 weighted shares from the Class B diluted EPS calculation, as the impact of the shares are considered anti-dilutive.


	2023	2023	2022	2022	2021	2021
	Class A	Class B	Class A	Class B	Class A	Class B




Weighted number of outstanding shares	284,262,802	345,437,500	282,195,495	345,437,500	264,171,208	241,333,048
Weighted number of shares with dilutive effects	3,306,122	11,446,403	2,354,500	6,891,423	—	—
Weighted number of outstanding shares (diluted and undiluted)	287,568,924	356,883,903	284,549,995	352,328,923	264,171,208	241,333,048

Net income / (loss) (mCHF)	70.9	8.6	51.4	6.3	(156.0)	(14.2)
Basic EPS (CHF)	0.25	0.02	0.18	0.02	(0.59)	(0.06)
Diluted EPS (CHF)	0.25	0.02	0.18	0.02	(0.59)	(0.06)