FTB-C000506 / Formula component

Donchian Channel Width

Donchian Channel Width is the price-unit distance between the rolling highest high and lowest low.

Also known asDonchian width

Foundation Formula defined 1 linked topicPublished

Definitions

In plain terms

It expands when the active range gains a farther extreme and contracts when an extreme owner expires.

Technical

Width equals upper minus lower, is nonnegative, and may equal zero for a flat eligible window.

Scope

It is an absolute price distance and therefore is not inherently comparable across quote scales.

Formula

Donchian width = upper - lower
LaTeX: W_t=U_t-L_t
SymbolMeaningUnit
U_tDonchian upper channelprice units
L_tDonchian lower channelprice units

Output unit: price units

Examples

  • A reviewer traces Donchian Channel Width from aligned inputs through its first-ready row and edge cases before accepting a displayed value.

Common misconceptions

  • It is an absolute price distance and therefore is not inherently comparable across quote scales.

Concept relationships

Prerequisites

Related

Required by

Where this concept is used

Tutorials planned

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

  • D07-F04-A05 Important

Evidence and governance

  1. Donchian Channels TradingView · official platform documentation

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

    Limits: Causal lagging, tie ownership, and exact breakout event rules are local implementation boundaries.

Reviewed by
fintech-builder-batch-009
Last reviewed
2026-07-30
Next review
2027-07-30
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.