The Financial Conduct Authority makes its temporary product intervention rules permanent to prohibit the mass-marketing of speculative illiquid securities and certain listed bonds to retail investors. These measures, effective from 1 January 2021, aim to prevent significant consumer financial losses by restricting promotions to certified high net worth, certified sophisticated, and self-certified sophisticated investors only. The rules also mandate improved disclosure of key risks and costs for the limited number of retail investors still eligible to receive such financial promotions.