KB / signal
Normalized archetype score
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app/signals/config/signal_definitions.jsonbyscripts/build_signals_kb.py. Edit the registry entry and re-run the script — do not edit this file directly.
Normalized archetype score
What it is
Normalized archetype score — registry key screener_score_norm.
Per-(ticker, archetype) percentile or z-score normalization of the raw archetype score within the archetype’s current-batch or trailing distribution. Range [0, 1]. 0.5 sentinel when only one candidate exists for an archetype (single-sample edge). Computed by rank.py normalize_within_archetype().
Source
Source module: screener
Data source: computed
Derived metric — produced inside the platform (app/sources/screener.py or equivalent) rather than fetched as a raw upstream value. See the How it's computed section below for the formula.
How it’s computed
Percentile mode (default): rank(score_i) / (N-1) where rank is 0-indexed ascending position. Z-score mode: (score - mean) / std clamped to [-3,3] then mapped to [0,1] via (z+3)/6. Single-sample sentinel = 0.5. See app/screener/rank.py.
Where it surfaces
- API field:
screener.candidates.score_normonGET /api/v1/signals/latest
Health-score / alignment role
Data carrier — no implication, no health-score contribution.
Persisted for downstream consumers (sparklines, base-rate matcher, calibration substrate) but does not classify into BULLISH / NEUTRAL / BEARISH and does not contribute to the 0-100 health score.
Release cadence
- Publishes:
daily