Ley 24/1998, de 28 de julio, del Mercado de Valores - BOE 29/07/1998 - Num. 181 - 1644 (modificada por la Ley 4/1990, de 29 de junio, de Presupuestos Generales del Estado para 1990, la Ley 55/1999, de 29 de diciembre, de Medidas Fiscales, Administrativas y de lo Social y la Ley 37/1998, de 16 de noviembre)

This legislation establishes the legal framework for the securities market in Spain. It aims to ensure transparency, protect investors, and regulate the issuance and trading of financial instruments to maintain market stability and efficiency. This law affects financial institutions, public companies issuing securities, and individual or institutional investors operating within the Spanish financial markets.