Computation of option Greeks under hybrid stochastic volatility models via Malliavin calculus. (English) Zbl 1390.60198
Summary: This study introduces computation of option sensitivities (Greeks) using the Malliavin calculus under the assumption that the underlying asset and interest rate both evolve from a stochastic volatility model and a stochastic interest rate model, respectively. Therefore, it integrates the recent developments in the Malliavin calculus for the computation of Greeks: Delta, Vega, and Rho and it extends the method slightly. The main results show that Malliavin calculus allows a running Monte Carlo (MC) algorithm to present numerical implementations and to illustrate its effectiveness. The main advantage of this method is that once the algorithms are constructed, they can be used for numerous types of option, even if their payoff functions are not differentiable.
MSC:
| 60H07 | Stochastic calculus of variations and the Malliavin calculus |
| 60J60 | Diffusion processes |
| 91G20 | Derivative securities (option pricing, hedging, etc.) |
Keywords:
Malliavin calculus; Bismut-Elworthy-Li formula; computation of Greeks; hybrid stochastic volatility modelsReferences:
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