Jurisdiction(s):
United Kingdom

Key definition

Debt Securities definition

What does Debt Securities mean? Debt securities are tradable instruments issued by a borrower (the issuer) that evidence a debt and oblige the issuer to repay principal, usually with interest (a coupon), on scheduled dates. In practice this includes bonds, notes, debentures, loan stock, loan notes and commercial paper, typically issued in series and transferable between investors. The term is a descriptive expression used across financing, capital markets and corporate law rather than a single statutory definition, though related concepts appear in legislation and regulation (for example, “debentures” under the Companies Act and “transferable securities” under the prospectus regime). Key legal features commonly include: -...

Principal London debt markets: UK framework and listing/admission processes (LSE Main Market, ISM, OFIS, Sustainable Bond Market; PSM closed to new admissions from 19 January 2026)

Published by a LexisNexis Banking & Finance expert

Practice notes

What does this Practice Note cover?

This Practice Note offers an introduction to the principal London venues for listing and trading Debt Securities. It outlines the applicable regulatory framework and summarises, for each market, the key stages for listing and admission. It is not a detailed handbook for listing debt securities on these markets. For fuller guidance on listing debt securities on these markets, please refer to Practice Note: Guide to listing debt securities on the London Stock Exchange. This Practice Note delivers a high-level overview of the main available markets for listing debt securities in London. It signposts the regulatory framework governing listing and admissions to trading, explains the separate concepts of listing and admission to trading, the London Stock Exchange (LSE) markets that are relevant in a debt capital markets context, and the process for listing and/or admission to trading on those markets. It does not cover prospectus disclosure requirements or ongoing continuing obligations.

Listing or admission to trading—what is the difference?...

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Web page updated on 26/05/2026

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