FTB-C000461 / Financial concept

Gap-Aware Range Measurement

Gap-Aware Range Measurement includes spans from the previous close when measuring the size of a current OHLC bar.

Also known asdiscontinuity-aware range

Foundation 1 linked topicPublished

Definitions

In plain terms

It prevents a narrow intrabar high-low span from hiding a large jump between the prior close and the new bar.

Technical

The contract must declare current high and low, previous-close basis, first-bar behavior, units, adjustment consistency, and missing observations.

Scope

It measures observed envelope size, not the unobserved path traveled inside the bar or future direction.

Examples

  • A reviewer traces Gap-Aware Range Measurement from aligned inputs through its first-ready row and edge cases before accepting a displayed value.

Common misconceptions

  • It measures observed envelope size, not the unobserved path traveled inside the bar or future direction.

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.