FTB-C000047 / Market data field

Ticker Symbol

A ticker symbol is a short, human-readable code used to refer to a security or listing within a particular market context.

Also known astickertrading symbolstock symbol

Foundation 5 linked topicsPublished

Definitions

In plain terms

People often search for a company by ticker, but the same text can mean different securities in different markets and can change over time.

Technical

A ticker is a scoped, effective-dated label that requires venue, instrument type, source, and validity context; it must not serve as the only permanent identity key.

Scope

Ticker formats and uniqueness rules are venue- and data-provider-specific.

Examples

  • A symbol change should update the listing label without erasing the security's prior history.

Common misconceptions

  • A ticker is not globally unique and is not guaranteed to remain unchanged.

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.

  • D02-F03-A01 Important
  • D02-F03-A02 Primary
  • D02-F03-A03 Important
  • D02-F04-A03 Important
  • D03-F06-A04 Important

Evidence and governance

  1. Nasdaq Symbol Directory Definitions Nasdaq Trader · official exchange

    Supports: preferred label, short definition, technical definition

    Limits: Current directories are not complete historical identity chains, and symbols are not globally unique permanent identifiers.

  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.