Weak approximations and VIX option price expansions in forward variance curve models

F Bourgey, S De Marco, E Gobet - Quantitative Finance, 2023 - Taylor & Francis
We provide explicit approximation formulas for VIX futures and options in forward variance
models, with particular emphasis on the family of so-called Bergomi models: the one-factor …

Multilevel Monte Carlo simulation for VIX options in the rough Bergomi model

F Bourgey, S De Marco - arXiv preprint arXiv:2105.05356, 2021 - arxiv.org
We consider the pricing of VIX options in the rough Bergomi model. In this setting, the VIX
random variable is defined by the one-dimensional integral of the exponential of a Gaussian …

[PDF][PDF] Rough Heston with jumps-joint calibration to SPX/VIX level and skew as T→ 0, and issues with the quadratic rough Heston model

M Forde, B Smith - preprint, 2024 - nms.kcl.ac.uk
We augment the well known rough Heston model with an additional independent CGMY-
type jump process with a Brownian component, and we show that one can simultaneously …

A comparative study of polynomial-type chaos expansions for indicator functions

F Bourgey, E Gobet, C Rey - SIAM/ASA Journal on Uncertainty Quantification, 2022 - SIAM
We propose a thorough comparison of polynomial chaos expansion (PCE) for indicator
functions of the form for some threshold parameter and a random variable associated with …

[PDF][PDF] Small-time VIX smile and the stationary distribution for the rough heston model

M Forde, S Gerhold, B Smith - 2022 - nms.kcl.ac.uk
We characterize the asymptotic behaviour of close-to-the-money VIX call options under a
generalized Rough Heston model with an exogenously specified initial variance term …

[PDF][PDF] Small-time & H↓ 0 limits of Rough Volatility Models

B Smith - 2023 - kclpure.kcl.ac.uk
This thesis consists of 4 chapters each of which discusses the properties of various models
from Mathematical Finance in particular Rough Volatility models. In Chapter 1 we discuss …

[引用][C] Small-time VIX smile for the Rough Heston model

M Forde, S Gerhold, B Smith - with S. Gerhold and B. Smith, 2021

[引用][C] Rough Heston with jumps-small-time VIX smile and exact calibration to SPX/VIX level and skew

M Forde, S Gerhold, B Smith - 2021