Risk decomposition
AAPL
Market → sector → subsector → α-residual · 2026-02-25 → 2026-08-17

Market
+9.8%
Sector
-4.7%
Subsector
-1.3%
α residual
+7.9%
Stock
+11.7%
Every position carries the market, its sector, and its subsector before any stock-specific move. The waterfall splits AAPL's realized return into those benchmark layers; the α residual is what the three hedge layers do not explain.
source: RiskModels — GET /ticker-returns?ticker=AAPL&years=1