CET1 Capital means, as of any Balance Sheet Date, the aggregate amount, in the Presentation Currency, of items that constitute common equity tier 1 capital of the Group as of such Balance Sheet Date, less any deductions from common equity tier 1 capital required to be made, in each case as determined by the Group Holding Company pursuant to the BIS Regulations applicable to the Group Holding Company as of such Balance Sheet Date, and as (i) disclosed in the Quarterly Financial Accounts published on the relevant Ordinary Publication Date or (ii) may be disclosed as a component of the Reviewed Interim Measurement published upon the instruction of FINMA on the relevant Extraordinary Publication Date, as applicable. For the avoidance of doubt, the term "common equity tier 1 capital" as used in this definition has the meaning assigned to such term in the BIS Regulations in effect as of the relevant Balance Sheet Date.