Definitions
In plain terms
It distinguishes a new crossing event from merely remaining above or below a level.
Technical
Detection specifies direction, strict or inclusive comparisons, prior valid observation, missing values, persistence, and timestamp.
Scope
Touching a threshold is not always a crossing; the comparison convention decides.
Examples
- A Fintech Builder lesson can compute or identify Threshold Crossing only after declaring its inputs, timing, and edge-case rules.
Common misconceptions
- Touching a threshold is not always a crossing; the comparison convention decides.
Concept relationships
Prerequisites
Where this concept is used
Evidence and governance
- Advance-Decline Ratio Indicators and the Zweig Breadth Thrust StockCharts · secondary methodology
Supports: preferred label, short definition, technical definition
Limits: Historical signal descriptions are not evidence of future performance, and implementations must freeze thresholds and window semantics.
- Reviewed by
- fintech-builder-batch-005
- Last reviewed
- 2026-07-27
- Next review
- 2027-07-27
- 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.