(50)Directive (EU) 2025/2 introduced several changes and clarifications to the rules governing the calculation of the solvency position of insurance groups, including with regard to own funds and solvency capital requirements. In particular, it clarifies that insurance holding companies and mixed financial holding companies are to be treated as insurance or reinsurance undertakings for the sole purposes of group solvency calculations. That entails the calculation of notional capital requirements for such entities under both method 1, including in the context of the assessment of the availability of own funds, and method 2. Delegated Regulation (EU) 2015/35 should therefore be amended to reflect those changes to Directive 2009/138/EC.