Meanings
- uncountablebusinessA third-order measure of derivative price sensitivity, expressed as the rate of change of gamma with respect to time, or equivalently the rate of change of charm with respect to changes in the underlying asset price.
Figure 9 illustrates DgammaDtime of an option with respect to varying asset price and time to maturity.
2006, Paul Wilmott, The Best of Wilmott 2, page 382 more examples
The change in gamma with respect to small changes in time to maturity, DGammaDtime - also called GammaTheta or color (Garman, 1992) — is given by (assuming we get closer to maturity): […]
2007, Espen Gaarder Haug, The Complete Guide to Option Pricing Formulas, page 49Colour (DgammaDtime, gamma bleed) (Fig. 137–145) characterizes the changing of Gamma as time changes: […]
2019 February 6, Mikhail M. Dyshaev, Vladimir E. Fedorov, “The Sensitivities (Greeks) for somemodels of option pricing with market illiquidity”, in ResearchgateSynonyms: color, colour, gamma decay
Synonyms & antonyms
nounA third-order measure of derivative price sensitivity, expressed as the rate of change of gamma with respect to time, or equivalently the rate of change of charm with respect to changes in the underlying asset price.
Origin
From the mathematical formula (∂Γ)/(∂τ), the partial derivative of gamma (Γ) with respect to time (τ), pronounced as "D gamma (by) D time".
Full word history & related roots →Cite this entry
DgammaDtime. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/DgammaDtime
“DgammaDtime.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/DgammaDtime. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “DgammaDtime,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/DgammaDtime.
Source: DgammaDtime on Wiktionary, CC BY-SA 4.0.