FTB-C000531 / Indicator

Accumulation/Distribution Line

The Accumulation/Distribution Line cumulatively sums volume weighted by where the close sits in the bar range.

Also known asADLA/D line

Definitions

In plain terms

A close near the high gives a positive weight, a close near the low gives a negative weight, and the weighted volume is accumulated.

Technical

MFM_t = ((C_t-L_t)-(H_t-C_t))/(H_t-L_t); MFV_t = V_t MFM_t; ADL_t = ADL_(t-1)+MFV_t with zero-range MFM set to 0.

Scope

This is a bar-location volume study, not the market-breadth advance/decline line.

Examples

  • A reviewer computes Accumulation/Distribution Line from a small OHLCV fixture and checks readiness, units, and edge cases before publication.

Common misconceptions

  • This is a bar-location volume study, not the market-breadth advance/decline line.

Concept relationships

Where this concept is used

Evidence and governance

  1. Accumulation/Distribution (A/D) Line TradingView · official platform documentation

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

    Limits: Does not turn the line into market breadth, identify trade initiators, or eliminate gap blind spots.

  2. Chaikin Oscillator TradingView · official platform documentation

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

    Limits: The oscillator is not adopted as a causal or predictive claim for CMF or ADL.

  3. Volume indicators function group TA-Lib · first party technical publication

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

    Limits: Library compatibility does not by itself prove a project's seed, warm-up, or missing-data policy.

  4. Closing Price Investor.gov · official standard

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

    Limits: A close is not automatically an adjusted close and may vary by market session convention.

Reviewed by
fintech-builder-batch-010
Last reviewed
2026-08-01
Next review
2027-08-01
Record status
evidence reviewed

This record is evidence-reviewed and readable, but not yet promoted to published — it is served noindex,follow and excluded from the sitemap.