FTB-C000048 / Implementation concept

Stable Security Identifier

A stable security identifier is a governed key intended to preserve instrument identity across changes in mutable labels such as ticker or name.

Also known aspermanent security identifiersecurity ID

Intermediate 11 linked topicsPublished

Definitions

In plain terms

If a company changes its trading symbol, historical records should still connect to the same security when the instrument truly continues. A stable identifier enables that link.

Technical

Stability is always scoped to an identifier scheme and lifecycle policy; crosswalks must retain identifier type, source, effective dates, status, and mapping evidence.

Scope

Stable does not mean immortal, globally unique across all schemes, or immune to corporate-action replacement.

Examples

  • A governed dataset records stable security identifier explicitly instead of inferring it from an ambiguous field.

Common misconceptions

  • Stable Security Identifier does not have one universal meaning without its stated market, source, and time context.

Concept relationships

Prerequisites

Related

Required by

Where this concept is used

Tutorials planned

These catalogued topics use this concept, but their complete build has not shipped yet.

  • D01-F02-A05 Important
  • D02-F02-A02 Important
  • D02-F03-A01 Primary
  • D02-F03-A02 Important
  • D02-F03-A03 Important
  • D02-F03-A04 Important
  • D02-F03-A05 Important
  • D02-F04-A01 Prerequisite
  • D02-F04-A03 Important
  • D03-F06-A01 Important
  • D03-F06-A04 Important

Evidence and governance

  1. Financial Instrument Global Identifier Version 1.2 Object Management Group · official standard

    Supports: preferred label, short definition, technical definition

    Limits: Identifier hierarchy does not establish legal rights, fungibility, or universal persistence, and provider terms still apply.

  2. Fintech Builder Glossary Definition Contract The Fintech Builder · internal governed contract

    Supports: variant distinction

    Limits: Defines governed platform behavior rather than claiming these policies are universally prescribed by external McClellan methodology.

Reviewed by
Last reviewed
2026-07-26
Next review
2027-07-26
Record status
published
Written by

Fintech engineer building market-data and financial systems, and the author of every article, glossary record, and reference implementation on The Fintech Builder.