FTB-C000221 / Indicator

Absolute Breadth Index

Absolute Breadth Index is the absolute value of advancing issues minus declining issues.

Also known asABI

Intermediate Formula defined 1 linked topicPublished

Definitions

In plain terms

It measures the size of the imbalance between advancing and declining issues without retaining its direction.

Technical

Compute the absolute net-advances count for one declared point-in-time universe and session.

Scope

It shows imbalance magnitude, not whether advances or declines led.

Formula

ABI = abs(A - D)
LaTeX: ABI=|A-D|
SymbolMeaningUnit
Aadvancing issuesissues
Ddeclining issuesissues

Output unit: issues

Examples

  • A Fintech Builder lesson can compute or identify Absolute Breadth Index only after declaring its inputs, timing, and edge-case rules.

Common misconceptions

  • It shows imbalance magnitude, not whether advances or declines led.

Concept relationships

Prerequisites

Related

Where this concept is used

Tutorials planned

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

  • D04-F01-A05 Primary

Evidence and governance

  1. T2101 Absolute Breadth Index TC2000 · official platform documentation

    Supports: preferred label, short definition, technical definition, formula

    Limits: The page documents a platform indicator; universe membership and data handling must still be declared by the implementation.

Reviewed by
fintech-builder-batch-005
Last reviewed
2026-07-27
Next review
2027-07-27
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.