Concept · Stock-level risk (bottom-up)
Idiosyncratic
Synonym for residual in classical finance literature. We standardize on *residual*.
In depth
The classical-finance term for the residual: return not explained by any factor exposure. RiskModels standardizes on *residual* throughout, but you'll see 'idiosyncratic' in the literature — same quantity.
In the methodology
Explained risk: variance decomposition →Referenced by (2)
- NVIDIA: The Economic-Profit Burden of an AI Bottleneck
A RiskModels.app visual case study in market-implied expectations
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How RiskModels picks the right hedge depth automatically, per stock, per day