activity
20202026
most citedStatic and dynamic SABR stochastic volatility models: calibration and option pricing using GPUs

14 citations · 16 across the 7 of their papers we have counts for

collaborators

8 papers

q-fin.CP2026

Quantum computing for multidimensional option pricing: End-to-end pipeline

Julien Hok, Álvaro Leitao

This work introduces an end-to-end framework for multi-asset option pricing that combines market-consistent risk-neutral density recovery with quantum-accelerated numerical integra…

cs.LG2025

Parametric Numerical Integration with (Differential) Machine Learning

Álvaro Leitao, Jonatan Ráfales

In this work, we introduce a machine/deep learning methodology to solve parametric integrals. Besides classical machine learning approaches, we consider a differential learning fra…

math.OC2024★ 14 cited

Static and dynamic SABR stochastic volatility models: calibration and option pricing using GPUs

J. L. Fernández, A. M. Ferreiro, J. A. García +3

For the calibration of the parameters in static and dynamic SABR stochastic volatility models, we propose the application of the GPU technology to the Simulated Annealing global op…

q-fin.CP2024

On Deep Learning for computing the Dynamic Initial Margin and Margin Value Adjustment

Joel P. Villarino, Álvaro Leitao

The present work addresses the challenge of training neural networks for Dynamic Initial Margin (DIM) computation in counterparty credit risk, a task traditionally burdened by the…

q-fin.CP2022★ 1 cited

Boundary-safe PINNs extension: Application to non-linear parabolic PDEs in counterparty credit risk

Joel P. Villarino, Álvaro Leitao, José A. García-Rodríguez

The goal of this work is to develop deep learning numerical methods for solving option XVA pricing problems given by non-linear PDE models. A novel strategy for the treatment of th…

quant-ph2022

Real Quantum Amplitude Estimation

Alberto Manzano, Daniele Musso, Álvaro Leitao

We introduce the Real Quantum Amplitude Estimation (RQAE) algorithm, an extension of Quantum Amplitude Estimation (QAE) which is sensitive to the sign of the amplitude. RQAE is an…

quant-ph2021

Quantum Arithmetic for Directly Embedded Arrays

Alberto Manzano, Daniele Musso, Álvaro Leitao +4

We describe a general-purpose framework to design quantum algorithms relying upon an efficient handling of arrays. The corner-stone of the framework is the direct embedding of info…

q-fin.CP2020★ 1 cited

On Calibration Neural Networks for extracting implied information from American options

Shuaiqiang Liu, Álvaro Leitao, Anastasia Borovykh +1

Extracting implied information, like volatility and/or dividend, from observed option prices is a challenging task when dealing with American options, because of the computational…