FTB-C000226 / Formula component

High-Low Differential

High-Low Differential is the signed difference between new-high and new-low issue counts.

Also known asnew-high/new-low differential

Foundation Formula defined 1 linked topicPublished

Definitions

In plain terms

It is another name for the session's net new highs when both counts share the same specification.

Technical

Store the two component counts as well as the difference so the result remains auditable.

Scope

It should not be confused with the distance between a price high and low.

Formula

High-low differential = NH - NL
LaTeX: HLD=NH-NL
SymbolMeaningUnit
NHnew-high issuesissues
NLnew-low issuesissues

Output unit: issues

Examples

  • A Fintech Builder lesson can compute or identify High-Low Differential only after declaring its inputs, timing, and edge-case rules.

Common misconceptions

  • It should not be confused with the distance between a price high and low.

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-F03-A01 Important

Evidence and governance

  1. High-Low Index StockCharts ChartSchool · secondary methodology

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

    Limits: Examples are educational and provider-specific; they do not prescribe a universal universe, lookback, or trading rule.

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.