FTB-C000007 / Formula component

Net Advances

Net Advances is the number of advancing issues minus the number of declining issues for one validated session.

Also known asadvances minus declinesA-D breadth

Foundation Formula defined 8 linked topicsPublished

Definitions

In plain terms

Net Advances gives every advancing issue a positive vote and every declining issue a negative vote, then subtracts the second count from the first.

Technical

For advancing count A and declining count D from one reconciled point-in-time universe, Net Advances is x = A - D and is measured in issues.

Scope

This is an unweighted signed issue count; it is neither cumulative nor normalized and does not include unchanged issues in the subtraction.

Formula

x = A - D
LaTeX: x_t = A_t - D_t
SymbolMeaningUnit
x_tNet Advances for session tissues
A_tAdvancing issues for session tissues
D_tDeclining issues for session tissues

Output unit: issues

Examples

  • With 620 advances and 480 declines, Net Advances equals 140 issues.

Common misconceptions

  • Net Advances does not measure the size of each security's price move.

Concept relationships

Prerequisites

Broader concepts

Contrasts with

Derived from

Feeds into

Required by

Where this concept is used

Tutorials planned

These catalogued topics use this concept, but their complete build has not shipped yet.

  • D04-F01-A01 Primary
  • D04-F01-A02 Mentioned
  • D04-F01-A03 Prerequisite
  • D04-F01-A04 Prerequisite
  • D04-F01-A05 Prerequisite
  • D04-F02-A01 Prerequisite
  • D04-F02-A02 Prerequisite
  • D04-F02-A03 Prerequisite

Evidence and governance

  1. A-D definition Nasdaq, Inc. · official exchange

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

    Limits: Does not prescribe universe membership, revision handling, volume allocation, EMA initialization, or software behavior.

  2. Calculating the McClellan Oscillator McClellan Financial Publications · first party methodology

    Supports: formula, variant distinction

    Limits: Does not prescribe one universal initialization, missing-session, revision-resolution, rounding, or software interface policy.

Reviewed by
Last reviewed
2026-07-26
Next review
2027-07-26
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.