1. A CCP shall divide its annual gross operational expenses by twelve in order to determine its monthly gross operational expenses, and multiply the resulting number by its time span for winding down or restructuring its activities determined according to paragraph 2. The result of this calculation is the capital required to ensure an orderly winding down or restructuring of the activities of the CCP.

2. In order to determine the time span for winding down or restructuring its activities referred to in paragraph 1, a CCP shall submit to the competent authority for approval in accordance with that competent authority's powers under Title III of Regulation (EU) No 648/2012 its own estimate of the appropriate time span for winding down or restructuring its activities. The estimated time span shall be sufficient to ensure, including in stressed market conditions, an orderly winding down or restructuring of its activities, reorganising its operations, liquidating its clearing portfolio or transferring its clearing activities to another CCP. The estimate shall take into account the liquidity, size, maturity structure and potential cross-border obstacles of the positions of the CCP and the type of products cleared. The time span for winding down or restructuring its activities used for the calculation of the capital requirement is subject to a minimum number of six months.

3. A CCP shall update its estimate of the appropriate time span for winding down or restructuring its activities whenever there is a significant change in the assumptions underlying the estimation and submit this updated estimate to the competent authority for approval.