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 - lowerW_t=U_t-L_t| Symbol | Meaning | Unit |
|---|---|---|
U_t | Donchian upper channel | price units |
L_t | Donchian lower channel | price 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
Where this concept is used
Evidence and governance
- 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