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Relative strength vs SPY (252d)

What it is

Relative strength vs SPY (252d) — registry key screener_rs_spy.

Per-ticker relative strength ratio vs SPY: (ticker_return_252d) / (spy_return_252d), where both are computed as close / close_252d_ago. Ratio > 1 means outperformance. Stored in screener_features_daily. Feeds archetype scorers (D5 RS divergence in selloff).

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

(close / close_252d) / (spy_close / spy_close_252d). NULL when fewer than 252 aligned rows.

Where it surfaces

• API field: screener.features.rs_spy on GET /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