18-21 September 2019
Kraków
Europe/Warsaw timezone

Option pricing under the Generalized Geometric Brownian Motion

Not scheduled
15m
Kraków

Kraków

Poster Session 8

Speaker

Mr. Viktor Stojkoski (Macedonian Academy of Sciences and Arts)

Description

Classical option pricing schemes assume that the value of a financial asset follows a geometric Brownian motion (GBM). However, a growing body of studies suggest that a simple GBM trajectory is not an adequate representation for the dynamics of an asset due to the fat-tailed properties found in empirical distributions of the asset returns. To capture this phenomenon three approaches have been proposed: i) stochastic volatility, where the amplitude of the noise itself is a stochastic process; ii) utilizing fat-tailed distributions for the noise; and iii) generalizations of GBM based on subdiffusion. Here, we turn our attention to the last approach and develop a generalization of GBM where the introduction of a memory kernel critically determines the behavior of the stochastic process. We utilize the resulting generalized GBM to examine the empirical performance of a selected group of memory kernels in pricing European call options. Our results indicate that the performance of kernel ultimately depends on the maturity of the option and its moneyness. This yields novel inights to both finance theory and stochastic processes in general.

Primary authors

Mr. Viktor Stojkoski (Macedonian Academy of Sciences and Arts) Dr. Trifce Sandev (Macedonian Academy of Sciences and Arts) Prof. Kocarev Ljupco (Macedonian Academy of Sciences and Arts) Dr. Lasko Basnarkov (Macedonian Academy of Sciences and Arts)

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