Definitions
In plain terms
It moves the prior SAR toward the prior extreme point by the prior acceleration factor.
Technical
The candidate must use prior state in the declared order before applying bar clamps and current penetration logic.
Scope
It is an intermediate value and may not equal the published SAR.
Formula
SAR candidate_t = SAR_(t-1) + AF_(t-1)*(EP_(t-1) - SAR_(t-1))SAR^c_t=SAR_{t-1}+AF_{t-1}(EP_{t-1}-SAR_{t-1})| Symbol | Meaning | Unit |
|---|---|---|
SAR_(t-1) | prior published SAR | price |
AF_(t-1) | prior acceleration factor | ratio |
EP_(t-1) | prior extreme point | price |
Output unit: price
Examples
- A governed lesson calculates or identifies SAR Candidate only after its parameters, state, timing, and edge cases are declared.
Common misconceptions
- It is an intermediate value and may not equal the published SAR.
Concept relationships
Required by
Where this concept is used
Evidence and governance
- TA-Lib Parabolic SAR Implementation TA-Lib · first party technical publication
Supports: preferred label, short definition, technical definition, formula
Limits: Initial direction and extended-SAR options differ across implementations and must be declared.
- 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.