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

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

Where this concept is used

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