Definitions
In plain terms
In the traditional variant it is the simple moving average of the same price series and window used for dispersion.
Technical
The D07 contract uses the current-inclusive n-close SMA and publishes it only after a full window exists.
Scope
Changing the basis type creates a variant and requires a dispersion calculation consistent with that variant.
Examples
- A reviewer traces Bollinger Middle Band from aligned inputs through its first-ready row and edge cases before accepting a displayed value.
Common misconceptions
- Changing the basis type creates a variant and requires a dispersion calculation consistent with that variant.
Concept relationships
Where this concept is used
Evidence and governance
- Bollinger Bands Rules John Bollinger · first party methodology
Supports: preferred label, short definition, technical definition
Limits: Interpretive rules do not prove forecasting power, trade profitability, or one universal parameter selection.
- Bollinger Bands TradingView · official platform documentation
Supports: preferred label, short definition, technical definition
Limits: Platform behavior and interpretation are not universal standards and do not replace the local frozen variant.
- Reviewed by
- fintech-builder-batch-009
- Last reviewed
- 2026-07-30
- Next review
- 2027-07-30
- Record status
- published