Definitions
In plain terms
A value of 100 means the selected highest high occurs at the current endpoint under the declared tie rule.
Technical
The implementation must define window length, periods-since convention, high field, tie handling, and first-ready index.
Scope
It measures high recency, not the height of the high or future upside.
Formula
Aroon Up = 100 * (n - periods since highest high) / nA^\uparrow_t=100\frac{n-k^H_t}{n}| Symbol | Meaning | Unit |
|---|---|---|
n | Aroon period | periods |
k^H_t | periods since selected highest high | periods |
Output unit: percent
Examples
- A governed lesson calculates or identifies Aroon Up only after its parameters, state, timing, and edge cases are declared.
Common misconceptions
- It measures high recency, not the height of the high or future upside.
Concept relationships
Where this concept is used
Evidence and governance
- TA-Lib AROON Implementation TA-Lib · first party technical publication
Supports: preferred label, short definition, technical definition, formula
Limits: The pinned version supports reproducibility but does not make every platform's tie convention equivalent.
- Reviewed by
- fintech-builder-batch-007
- 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.