Risk decomposition
GOOG
Market → sector → subsector → α-residual · 2026-04-30 → 2026-10-20

Market
+10.1%
Sector
-6.2%
Subsector
+0.4%
α residual
-17.3%
Stock
-13.0%
Every position carries the market, its sector, and its subsector before any stock-specific move. The waterfall splits GOOG'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=GOOG&years=1