Search Results for author: Blanka Horvath

Found 11 papers, 4 papers with code

Signature Trading: A Path-Dependent Extension of the Mean-Variance Framework with Exogenous Signals

no code implementations29 Aug 2023 Owen Futter, Blanka Horvath, Magnus Wiese

We achieve this by representing a trading strategy as a linear functional applied to the signature of a path (which we refer to as "Signature Trading" or "Sig-Trading").

PAIR TRADING

Robust Hedging GANs

no code implementations5 Jul 2023 Yannick Limmer, Blanka Horvath

This is achieved through an interplay of three modular components: (i) a (deep) hedging engine, (ii) a data-generating process (that is model agnostic permitting a large variety of classical models as well as machine learning-based market generators), and (iii) a notion of distance on model space to measure deviations between our market prognosis and reality.

Non-parametric online market regime detection and regime clustering for multidimensional and path-dependent data structures

1 code implementation27 Jun 2023 Zacharia Issa, Blanka Horvath

In this work we present a non-parametric online market regime detection method for multidimensional data structures using a path-wise two-sample test derived from a maximum mean discrepancy-based similarity metric on path space that uses rough path signatures as a feature map.

Clustering Outlier Detection

Clustering Market Regimes using the Wasserstein Distance

no code implementations22 Oct 2021 Blanka Horvath, Zacharia Issa, Aitor Muguruza

The problem of rapid and automated detection of distinct market regimes is a topic of great interest to financial mathematicians and practitioners alike.

Clustering Time Series +1

Hedging under rough volatility

no code implementations10 May 2021 Masaaki Fukasawa, Blanka Horvath, Peter Tankov

In this chapter we first briefly review the existing approaches to hedging in rough volatility models.

Deep Hedging under Rough Volatility

no code implementations3 Feb 2021 Blanka Horvath, Josef Teichmann, Zan Zuric

We investigate the performance of the Deep Hedging framework under training paths beyond the (finite dimensional) Markovian setup.

Time Series Time Series Analysis

A Data-driven Market Simulator for Small Data Environments

no code implementations21 Jun 2020 Hans Bühler, Blanka Horvath, Terry Lyons, Imanol Perez Arribas, Ben Wood

Neural network based data-driven market simulation unveils a new and flexible way of modelling financial time series without imposing assumptions on the underlying stochastic dynamics.

Time Series Time Series Analysis

Deep Learning Volatility

2 code implementations28 Jan 2019 Blanka Horvath, Aitor Muguruza, Mehdi Tomas

We present a neural network based calibration method that performs the calibration task within a few milliseconds for the full implied volatility surface.

Mathematical Finance

Volatility options in rough volatility models

no code implementations5 Feb 2018 Blanka Horvath, Antoine Jacquier, Peter Tankov

We discuss the pricing and hedging of volatility options in some rough volatility models.

Functional central limit theorems for rough volatility

1 code implementation8 Nov 2017 Blanka Horvath, Antoine Jacquier, Aitor Muguruza

The non-Markovian nature of rough volatility processes makes Monte Carlo methods challenging and it is in fact a major challenge to develop fast and accurate simulation algorithms.

Probability Pricing of Securities 60F17, 60F05, 60G15, 60G22, 91G20, 91G60, 91B25

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