The current framework of EU regulation concerning capital markets is complex and partly inconsistent in the way that it is applied in the various Member States. Through the Capital Markets Union (CMU) project the European Union is pursuing the goal of establishing a true single market for capital in Europe. Regulating EU Capital Markets Union: Fundamentals of a European Code is the first of a two-volume series proposing the codification of EU legislature as a way to establish this goal. This book analyses all existing capital markets regulation. It explains the idea of codification, looks at the added value of a European Capital Markets Code, discusses key concepts of the current regimes and elaborates on the goals of the future codification act. The work explores the idea that the provisions spread over numerous rulebooks should be brought together in a single legal act in the form of a regulation and organized in a systematic way to reduce complexity thereby facilitating accessibility of capital markets law.Drawing on the experience of academics from various European countries, this volume discusses possible contents of a European Capital Markets Code, addresses approaches to regulatory reforms and explores the role of private enforcement.