. At the domestic level, cooperation approaches in the G10 countries have a long tradition, particularly in the savings, cooperative, and community banking sectors. Small and medium-sized savings and cooperative banks often outsource payment activities or securities-related back-office activities to sector-specific cooperative interbank clearing mechanisms. In Germany, for example, the savings and cooperative banking sectors have established their networks based on internally agreed exchange and settlement procedures. The conclusion is that the investment banking sector is evolving due to fintech innovations, regulatory changes, and client demands. Embracing technologies like AI and Big Data, while navigating consolidation trends, is essential for competitiveness. Investment banks that adapt to these shifts will enhance their capital-raising and advisory services, ensuring continued relevance and success.