The EESC welcomes the Commission's proposals that are a new, important step in the efforts to achieve greater integration and convergence by increasing integrated supervision and provide new building blocks for the realisation of the Capital Markets Union (CMU) in the EU. A smoothly operating CMU can make an important contribution to private, cross-border risk-sharing. The challenge is to find the right balance between the competences of national and European supervisors and, where possible, to apply the subsidiarity and proportionality principles. Keeping the future in mind, new developments and modern technologies, such as FinTech, as well as more sustainable financing, in line with international activities and agreements should be reflected in the system of supervision. Close attention should be paid to costs for the supervision. Where part of the costs is directly borne by the private sector, care should be taken to exercise budgetary discipline and avoid duplication.