Definitions
In plain terms
Pre-market, core trading, auctions, and after-hours periods can follow different rules, so a dataset should name the session it includes.
Technical
A session definition combines venue, product, local time zone, open and close boundaries, auctions, breaks, holiday overrides, and rule-version provenance.
Scope
There is no single global regular session, and scheduled hours do not prove that every instrument traded.
Examples
- A governed dataset records trading session explicitly instead of inferring it from an ambiguous field.
Common misconceptions
- Trading Session 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
Evidence and governance
- NYSE Trading Hours and Calendars New York Stock Exchange · official exchange
Supports: preferred label, short definition, technical definition
Limits: Hours vary by venue, product, date, rule version, and exceptional notice; they are not a universal calendar.
- 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
- fintech-builder-owner-approved
- Last reviewed
- 2026-07-26
- Next review
- 2027-07-26
- Record status
- published