Definitions
In plain terms
When nothing is classified as rising or falling, raw Net Advances can still equal zero, but a formula that divides by the number of movers cannot be calculated.
Technical
A validated session with A=D=0 has raw signed breadth A-D=0 while the canonical ratio-adjusted expression 1000(A-D)/(A+D) is undefined because its denominator is zero.
Scope
This state requires a real reconciled session; it must not be used as a substitute for missing data, an empty universe, or incomplete classification.
Examples
- A session with 0 advances, 0 declines, and 25 valid unchanged issues is a zero-mover session.
Common misconceptions
- An undefined ratio-adjusted value must not be silently converted to zero.
Concept relationships
Prerequisites
Contrasts with
Derived from
Where this concept is used
Evidence and governance
- Ratio Adjusted Summation Index McClellan Financial Publications · first party methodology
Supports: short definition, technical definition, formula, variant distinction
Limits: Historical interpretive thresholds are not universal trading rules; the source does not prescribe the package's evidence or software failure policies.
- Reviewed by
- fintech-builder-owner-approved
- Last reviewed
- 2026-07-26
- Next review
- 2027-07-26
- Record status
- published