FTB-C000468 / Implementation concept

True Range Revision Horizon

True Range Revision Horizon is the limited set of rows that can change after one OHLC row is corrected.

Also known asTR one-transition memory

Intermediate 1 linked topicPublished

Definitions

In plain terms

Changing a row's high or low changes that row, while changing its close can also change the next row's gap components.

Technical

Under the one-previous-close formula, a correction at t has direct True Range effects no later than t+1, before downstream recursive indicators are considered.

Scope

ATR or other recursive consumers can carry the correction much further even though raw True Range cannot.

Examples

  • A reviewer traces True Range Revision Horizon from aligned inputs through its first-ready row and edge cases before accepting a displayed value.

Common misconceptions

  • ATR or other recursive consumers can carry the correction much further even though raw True Range cannot.

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.

  • D07-F04-A01 Important

Evidence and governance

  1. True Range TA-Lib · first party technical publication

    Supports: preferred label, short definition, technical definition

    Limits: TA-Lib leaves the first row unavailable; the local D07 contract explicitly uses a high-low fallback.

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.