The prices of derivatives contracts can be used to estimate ‘risk-neutral' probability density functions that give an … indication of the weight investors place on different future prices of their underlying assets, were they risk-neutral. In the … likely case that investors are risk-averse, this leads to differences between the risk-neutral probability density and the …

between stock returns and idiosyncratic return volatility at the firm level. By allowing for the volatility of the underlying … idiosyncratic choice variables to exhibit independent switches between a high and low volatility regime, we show that the options …' constant expected returns are composed of (i) a state dependent drift term that relates positively with the volatility regime …

options under low-dimensional stochastic volatility models. We derive multidimensional transforms which allow us to construct … efficient path-independent lattices for virtually all low-dimensional stochastic volatility models given in the literature … including one volatility factor-based stochastic volatility (SV) models, two volatility factors-based SV models, stochastic …

associated options risk premia. Both factors are informative for dynamic risk premia of equity and corporate debt. We argue that …

Speculators who wish to bet on higher future volatility often purchase options to “go long volatility.” Should … investors who buy options expect to profit when realized volatility increases? If so, under what conditions? To answer these … questions, we conduct an analysis of the relationship between long volatility performance (buying options) and contemporaneous …

In this paper we investigate the asymptotics of forward-start options and the forward implied volatility smile in the …

We prove here a general closed-form expansion formula for forward-start options and the forward implied volatility … smile in a large class of models, including the Heston stochastic volatility and time-changed exponential Levy models … particular) many results for the spot implied volatility smile.In passing we (i) show that the forward-start date has to be …