VIX
波动率指数(大盘环境)
Stock TechnicalP2VolatilityApplies to: US stocks
Definition
Expected volatility derived from S&P 500 option implied volatility (the "fear gauge").
Formula
Annualized by weighting near-/next-month SPX option IV per the CBOE method
How to read it
>30 panic, <15 calm; usually inverse to the stock index.
Outputoverlay/volatility
Data source: SPX option quotes. Public knowledge, not investment advice.
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Related indicators
Reference metadata — public, well-known indicator definitions. Not investment advice.