Volatility is (mostly) path-dependent

J Guyon, J Lekeufack - Quantitative Finance, 2023 - Taylor & Francis
We learn from data that volatility is mostly path-dependent: up to 90% of the variance of the
implied volatility of equity indexes is explained endogenously by past index returns, and up …

From constant to rough: A survey of continuous volatility modeling

G Di Nunno, K Kubilius, Y Mishura… - Mathematics, 2023 - mdpi.com
In this paper, we present a comprehensive survey of continuous stochastic volatility models,
discussing their historical development and the key stylized facts that have driven the field …

Joint SPX & VIX calibration with Gaussian polynomial volatility models: Deep pricing with quantization hints

E Abi Jaber, C Illand, S Li - Mathematical Finance, 2024 - Wiley Online Library
We consider the joint SPX & VIX calibration within a general class of Gaussian polynomial
volatility models in which the volatility of the SPX is assumed to be a polynomial function of a …

The quadratic rough Heston model and the joint S&P 500/VIX smile calibration problem

J Gatheral, P Jusselin, M Rosenbaum - arxiv preprint arxiv:2001.01789, 2020 - arxiv.org
Fitting simultaneously SPX and VIX smiles is known to be one of the most challenging
problems in volatility modeling. A long-standing conjecture due to Julien Guyon is that it may …

Empirical analysis of rough and classical stochastic volatility models to the SPX and VIX markets

SE Rømer - Quantitative Finance, 2022 - Taylor & Francis
We conduct an empirical analysis of rough and classical stochastic volatility models to the
SPX and VIX options markets. Our analysis focusses primarily on calibration quality and is …

Joint calibration to SPX and VIX options with signature-based models

C Cuchiero, G Gazzani, J Möller… - arxiv preprint arxiv …, 2023 - arxiv.org
We consider a stochastic volatility model where the dynamics of the volatility are described
by linear functions of the (time extended) signature of a primary underlying process, which is …

The quintic Ornstein-Uhlenbeck volatility model that jointly calibrates SPX & VIX smiles

EA Jaber, C Illand - arxiv preprint arxiv:2212.10917, 2022 - arxiv.org
The quintic Ornstein-Uhlenbeck volatility model is a stochastic volatility model where the
volatility process is a polynomial function of degree five of a single Ornstein-Uhlenbeck …

[LIBRO][B] Malliavin calculus in finance: Theory and practice

E Alòs, DG Lorite - 2021 - taylorfrancis.com
Malliavin Calculus in Finance: Theory and Practice aims to introduce the study of stochastic
volatility (SV) models via Malliavin Calculus. Malliavin calculus has had a profound impact …

The joint S&P 500/VIX smile calibration puzzle solved

J Guyon - Risk, April, 2020 - papers.ssrn.com
Since VIX options started trading in 2006, many researchers have tried to build a model that
jointly and exactly calibrates to the prices of S&P 500 (SPX) options, VIX futures and VIX …

On VIX futures in the rough Bergomi model

A Jacquier, C Martini, A Muguruza - Quantitative Finance, 2018 - Taylor & Francis
The rough Bergomi model introduced by Bayer et al.[Quant. Finance, 2015, 1–18] has been
outperforming conventional Markovian stochastic volatility models by reproducing implied …