Definitions
In plain terms
It expresses advancing participation as a fraction of issues that moved up or down.
Technical
Compute A/(A+D) for the same universe and session and declare the zero-mover policy.
Scope
It differs from the advance-decline issue ratio A/D.
Formula
Breadth ratio = A / (A + D)BR=\frac{A}{A+D}| Symbol | Meaning | Unit |
|---|---|---|
A | advancing issues | issues |
D | declining issues | issues |
Output unit: ratio
Examples
- A Fintech Builder lesson can compute or identify Breadth Ratio only after declaring its inputs, timing, and edge-case rules.
Common misconceptions
- It differs from the advance-decline issue ratio A/D.
Concept relationships
Prerequisites
Required by
Where this concept is used
Evidence and governance
- Advance-Decline Ratio Indicators and the Zweig Breadth Thrust StockCharts · secondary methodology
Supports: preferred label, short definition, technical definition, formula
Limits: Historical signal descriptions are not evidence of future performance, and implementations must freeze thresholds and window semantics.
- Reviewed by
- fintech-builder-batch-005
- Last reviewed
- 2026-07-27
- Next review
- 2027-07-27
- Record status
- evidence reviewed
This record is evidence-reviewed and readable, but not yet promoted to published — it is served noindex,follow and excluded from the sitemap.