Historical VolatilityHV
历史波动率
Stock TechnicalP2VolatilityApplies to: US stocks
Definition
Annualized volatility based on historical returns.
Formula
r=ln(C/Cₚᵣₑᵥ), HV=Std(r,n)×√252
How to read it
Compared with implied volatility (IV) to judge whether options are cheap or expensive.
InputscloseOutputoverlay/volatility
Data source: C. Public knowledge, not investment advice.
See Historical Volatility computed live on popular US stocks →
Related indicators
Reference metadata — public, well-known indicator definitions. Not investment advice.