v3.26.1
Right-of-use assets
 6 Months Ended
Jun. 30, 2026
Disclosure of quantitative information about right-of-use assets [abstract]  
Right-of-use assets 3.4 Right-of-use assets
(CHF in millions)StorageStores & showroomsOfficesCarsTotal
Cost at January 1, 2025152.8 154.4 139.1 9.6 455.9 
Accumulated Depreciation at January 1, 2025(52.1)(35.0)(38.0)(7.1)(132.3)
Net book value at January 1, 2025100.7 119.4 101.1 2.5 323.6 
Six month period ended June 30, 2025
Opening net book value
100.7 119.4 101.1 2.5 323.6 
Lease modification2.2 0.6 1.5 0.1 4.3 
Additions143.4 79.5 5.2 0.4 228.5 
Disposals— — — (0.1)(0.1)
Depreciation(15.7)(13.7)(6.6)(0.9)(36.9)
Currency Translation(26.4)(13.3)(3.0)(0.1)(42.8)
Net book value at June 30, 2025204.1 172.4 98.2 2.0 476.6 
Cost at June 30, 2025265.0 217.2 141.5 9.5 633.2 
Accumulated Depreciation at June 30, 2025(60.9)(44.8)(43.3)(7.5)(156.6)
Net book value at June 30, 2025204.1 172.4 98.2 2.0 476.6 
Cost at January 1, 2026265.0 272.3 144.9 9.8 692.0 
Accumulated Depreciation at January 1, 2026(78.3)(61.5)(49.9)(8.2)(197.9)
Net book value at January 1, 2026186.7 210.8 95.0 1.6 494.1 
Six month period ended June 30, 2026
Opening net book value
186.7 210.8 95.0 1.6 494.1 
Lease modification0.2 6.9 1.7 — 8.8 
Additions3.4 63.5 0.3 0.1 67.2 
Depreciation(16.5)(21.6)(6.8)(0.6)(45.4)
Currency Translation2.9 1.7 1.4 — 6.0 
Net book value at June 30, 2026176.7 261.4 91.5 1.1 530.7 
Cost at June 30, 2026271.2 345.7 147.9 8.7 773.5 
Accumulated Depreciation at June 30, 2026(94.5)(84.3)(56.4)(7.6)(242.8)
Net book value at June 30, 2026176.7 261.4 91.5 1.1 530.7 

The additions of CHF 67.2 million in the six-month period ended June 30, 2026 primarily relate to the commencement of various retail store leases across the Americas, EMEA, and APAC regions.
Refer to 4.3 Financial liabilities for additional information on the contractual maturities of On's undiscounted lease liabilities.