Bookbuilding meaning

Bookbuilding is the market process used in equity fundraisings (including IPOs, placings and accelerated bookbuilds) to test investor demand and set the final offer price, deal size and allocations. The bookrunner (usually the issuer’s broker or investment bank, often acting as global coordinator) opens an order book, invites non-binding indications of interest from institutional investors at different price points within a range, and then, with the issuer’s approval, prices the shares and determines allocations based on that demand. The term is a descriptive market expression, not defined in UK or Irish statute or case law. The process is nevertheless regulated: key legal issues include disclosure (prospectus or other offering materials), market soundings and inside information controls (UK MAR/EU MAR), conduct of business and allocation/conflicts requirements (MiFID II rules as applied by the FCA and the Central Bank of Ireland), underwriting/placing arrangements, stabilisation, wall‑crossing, and record‑keeping. Usage and legal treatment are broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland, noting post‑Brexit differences between UK MAR and EU MAR and in regulator guidance. Practically, bookbuilding seeks price discovery and efficient allocation while managing issuer objectives, timing and regulatory compliance.