Definitions
In plain terms
It can add and remove constituents at a periodic review, often followed by rebalancing of the resulting members.
Technical
The process requires point-in-time universe data, eligibility screens, rankings, buffers, decision and effective dates, announcement policy, corporate-action coordination, and audit evidence.
Scope
Reconstitution changes membership logic; rebalancing can occur without membership change.
Examples
- A governed index record identifies index reconstitution with its applicable methodology version, effective time, source, and units.
Common misconceptions
- Index Reconstitution does not have one universal implementation without the named index methodology, data cutoff, and governance context.
Concept relationships
Prerequisites
Related
Contrasts with
Where this concept is used
Evidence and governance
- MSCI Global Investable Market Indexes Methodology Library MSCI · first party methodology
Supports: preferred label, short definition, technical definition
Limits: MSCI methodology and production data are provider-specific and branded data or calculated values may require licenses.
- 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
- 2026-07-27
- Next review
- 2027-07-27
- Record status
- published