FTB-C000017 / Evidence concept

Volume Adjustment Basis

A volume adjustment basis declares how reported volume values are represented and adjusted within a series.

Also known asreported-volume basis

Definitions

In plain terms

Before comparing volume through time, the builder must know whether the values are raw or adjusted and must keep that choice consistent.

Technical

The pilot treats the volume unit and adjustment basis as stable series identity fields; changing either field starts a different series rather than silently joining incompatible observations.

Scope

The McClellan sources establish a volume-based method but do not mandate one universal modern feed or adjustment policy; stability here is a Fintech Builder contract choice.

Examples

  • A series labelled raw reported shares must not silently switch to split-adjusted volume halfway through.

Common misconceptions

  • Two providers' volume histories are not automatically comparable because they share a ticker and date.

Concept relationships

Where this concept is used

Evidence and governance

  1. A Subtle Message in the Volume Summation Index McClellan Financial Publications · first party technical publication

    Supports: units, variant distinction

    Limits: The article's market interpretation is excluded as evidence of forecasting, causation, thresholds, or profitable trading behavior.

  2. Understanding Oscillators and Other Indicators McClellan Financial Publications · first party technical publication

    Supports: variant distinction

    Limits: Historical publication conventions do not define a universal modern volume feed, adjustment basis, revision policy, or predictive result.

Reviewed by
fintech-builder-owner-approved
Last reviewed
2026-07-26
Next review
2027-07-26
Record status
published