Quantum Speedups for Derivative Pricing Beyond Black-Scholes

• URL: http://arxiv.org/abs/2602.03725v1
• Date: Tue, 03 Feb 2026 16:45:24 GMT
• Title: Quantum Speedups for Derivative Pricing Beyond Black-Scholes
• Authors: Dylan Herman, Yue Sun, Jin-Peng Liu, Marco Pistoia, Charlie Che, Rob Otter, Shouvanik Chakrabarti, Aram Harrow,
• Abstract summary: This paper explores advancements in quantum algorithms for derivative pricing of exotics.<n>We extend existing frameworks to demonstrate novel quadratic speedups for more practical models.<n>We also present an improved analysis of derivative pricing, leading to substantial reductions in the resource requirements for pricing GBM and CIR models.
• Score: 13.340091066357049
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper explores advancements in quantum algorithms for derivative pricing of exotics, a computational pipeline of fundamental importance in quantitative finance. For such cases, the classical Monte Carlo integration procedure provides the state-of-the-art provable, asymptotic performance: polynomial in problem dimension and quadratic in inverse-precision. While quantum algorithms are known to offer quadratic speedups over classical Monte Carlo methods, end-to-end speedups have been proven only in the simplified setting over the Black-Scholes geometric Brownian motion (GBM) model. This paper extends existing frameworks to demonstrate novel quadratic speedups for more practical models, such as the Cox-Ingersoll-Ross (CIR) model and a variant of Heston's stochastic volatility model, utilizing a characteristic of the underlying SDEs which we term fast-forwardability. Additionally, for general models that do not possess the fast-forwardable property, we introduce a quantum Milstein sampler, based on a novel quantum algorithm for sampling Lévy areas, which enables quantum multi-level Monte Carlo to achieve quadratic speedups for multi-dimensional stochastic processes exhibiting certain correlation types. We also present an improved analysis of numerical integration for derivative pricing, leading to substantial reductions in the resource requirements for pricing GBM and CIR models. Furthermore, we investigate the potential for additional reductions using arithmetic-free quantum procedures. Finally, we critique quantum partial differential equation (PDE) solvers as a method for derivative pricing based on amplitude estimation, identifying theoretical barriers that obstruct achieving a quantum speedup through this approach. Our findings significantly advance the understanding of quantum algorithms in derivative pricing, addressing key challenges and open questions in the field.

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