Calibrating Option Pricing using Generalized Integral Transform Technique based on Trapezoidal Rule
Subject Areas : Journal of Investment Knowledge
Forough Lotfi
1
,
Reza Aghajan Nashtaei
2
,
Mehdi Meshki Miavaghi
3
1 - PhD student of Financial engineering, Department of Management, Rasht Branch, Islamic Azad University, Rasht, Iran
2 - Department of Business Management, Rasht Branch, Islamic Azad University, Rasht, Iran (Corresponding Author)
3 - Department of Finance and Accounting, Payame Noor University, Rasht, Iran
Keywords: Integral Transform, Options Pricing, Calibration, Trapezoidal method,
Abstract :
The present study offers a new interpretation of the Generalized Integral Transform Technique as a powerful numerical method called the Integral Transform method. This method transforms models of nonlinear partial differential equations into a nonlinear system paired with ordinary differential equations to be solved numerically. On the other hand, in the present study, not only pricing is discussed, but also model calibration, which is a critical process, is designed to minimize the difference between the observed prices and the model prices. In order to implement the proposed model, the present study has used the call option data offered in the Tehran Stock Exchange and as a sample, has used the call option information of SAIPA Company shares for the maturity of June 2022. First, the Conditional Probability Distribution Function for different initial values of the underlying asset was obtained by coding in Python environment, and then the model was calibrated at different maturities. The results showed that the model calibration based on the Dove Swarm Optimization algorithm is suitable for options that are in a state of At-the-Money or In-the-Money in all maturity scenarios and are in Out-of-the-Money state in the midterm and long term scenarios. Furthermore, calibration based on the ant colony optimization algorithm can be used for options that are in an Out-of-the-Money state in the short-term scenario.
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