Local volatility — is a term used in quantitative finance to denote the set of diffusion coefficients, sigma(S T,T), that are consistent with the set of market prices for all option prices on a given underlier. This model is used to calculate values of exotic… … Wikipedia
Volatility smile — In finance, the volatility smile is a long observed pattern in which at the money options tend to have lower implied volatilities than in or out of the money options. The pattern displays different characteristics for different markets and… … Wikipedia
Stochastic volatility — models are used in the field of quantitative finance to evaluate derivative securities, such as options. The name derives from the models treatment of the underlying security s volatility as a random process, governed by state variables such as… … Wikipedia
VIX — For other uses, see Vix (disambiguation). VIX Index from inception to October 2008 VIX is the ticker symbol for the Chicago Board Options Exchange Market Volatility Index, a popular measure of the implied volatility of S P 500 index options.… … Wikipedia
Emanuel Derman — Born Cape Town, South Africa Residence New York City, New York, United States … Wikipedia
Constant Elasticity of Variance Model — In mathematical finance, the CEV or Constant Elasticity of Variance model is a stochastic volatility model, which attempts to capture stochastic volatility and the leverage effect. The model is widely used by practitioners in the financial… … Wikipedia
Autoregressive conditional heteroskedasticity — ARCH redirects here. For the children s rights organization, see Action on Rights for Children. In econometrics, AutoRegressive Conditional Heteroskedasticity (ARCH) models are used to characterize and model observed time series. They are used… … Wikipedia
Foreign-exchange option — Foreign exchange Exchange rates Currency band Exchange rate Exchange rate regime Exchange rate flexibility Dollarization Fixed exchange rate Floating exchange rate Linked exchange rate Managed float regime Markets Foreign exchange market Futures… … Wikipedia
Mixture model — See also: Mixture distribution In statistics, a mixture model is a probabilistic model for representing the presence of sub populations within an overall population, without requiring that an observed data set should identify the sub population… … Wikipedia
Foreign exchange option — In finance, a foreign exchange option (commonly shortened to just FX option or currency option) is a derivative financial instrument where the owner has the right but not the obligation to exchange money denominated in one currency into another… … Wikipedia
