Mirroring the long-established structure of the financial industry, EU financial regulation as we know it today approaches banking, insurance and investment services separately and often divergently. In recent decades however, the clear separation between financial sectors has gradually evaporated, as business lines have converged across sectors and FinTech solutions have emerged which do not fit traditional sector boundaries. As the contours of the traditional tripartition in the financial industry have faded, the diverging regulatory and supervisory treatment of these sectors has become increasingly at odds with economic reality. This book brings together insights developed by distinguished researchers and industry professionals in a series of articles analysing the main areas of EU financial regulation from a cross-sectoral perspective. For each specific research theme - including prudential regulation, corporate governance and conduct of business rules - the similarities, as well as gaps, overlaps and unjustifiable differences between banking, securities and insurance regulation, are clearly presented and discussed. This innovative research approach is aimed at informing lawmakers and policymakers on potential improvements to EU financial regulation whilst also supporting legal and compliance professionals applying the current framework or looking to streamline compliance processes.