西塔Thetaθ
Theta西塔
情绪指标Sentiment & DerivativesP2 Options适用:美股Applies to: US stocks
定义Definition
Time decay of an option's value.
计算公式Formula
∂option price/∂time (usually negative)
解读要点How to read it
Decays fastest near expiry/at-the-money; sellers collect Theta, buyers pay Theta.
输出Outputvalue/series
数据来源:Same as above。Data source: Same as above. 公开知识,不构成投资建议。Public knowledge, not investment advice.
在热门美股上查看西塔的实时计算值 →See Theta computed live on popular US stocks →
相关指标Related indicators
参考元数据 —— 公开、通用的指标定义。非投资建议。Reference metadata — public, well-known indicator definitions. Not investment advice.