Free-Float Market Capitalization (float-adjusted market cap): Definition and Formula

Definitions

In plain terms

If only 60% of a company's shares are treated as freely available, the float-adjusted capitalization uses that fraction rather than all shares.

Technical

The measure multiplies eligible price, shares, and free-float or investability factor, with explicit rounding, bands, foreign limits, effective dates, and methodology version.

Scope

Free float is provider- and methodology-defined and is not simply shares not held by insiders in every market.

Formula

FFMC = P * Q * F

LaTeX: FFMC=PQF

Symbol	Meaning	Unit
`P`	eligible price per share	currency per share
`Q`	declared shares	shares
`F`	free-float or investability factor	ratio

Output unit: currency

Examples

A governed index record identifies free-float market capitalization with its applicable methodology version, effective time, source, and units.

Common misconceptions

Free-Float Market Capitalization does not have one universal implementation without the named index methodology, data cutoff, and governance context.

Concept relationships

Prerequisites

Contrasts with

Market Capitalization

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, formula
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