DdeltaDtime

== English == === Etymology === From the mathematical formula − ∂ Δ ∂ τ {\displaystyle -{\frac {\partial \Delta }{\partial \tau }}} , the partial derivative of delta (Δ) with respect to time (τ), pronounced as "D delta (by) D time". === Noun === DdeltaDtime (uncountable) (finance) A second-order measure of derivative price sensitivity, expressed as the instantaneous rate of change of delta with respect to time. ==== Synonyms ==== charm, delta decay ==== Hypernyms ==== (measure of derivative price sensitivity): Greeks (includes list of coordinate terms)