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Tree methods for option pricing : master's thesis
ID Hasani, Nita (Author), ID Košir, Tomaž (Mentor) More about this mentor... This link opens in a new window

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Abstract
The first tree model for option pricing was introduced by Cox, Ross and Rubinstein a few years after the revolutionary Black-Scholes formula. It provides a simple and intuitive pricing method, and it can also be used for decision making about early exerciseof options. We show how to construct this tree model and derive the pricing formula. When the number of time steps n increases, the price obtained by the tree method converges to the Black-Scholes price. We prove this convergence and investigate further its behaviour. The convergence rate is slow and oscillatory, and thus we discuss how to accelerate this convergence. Many other tree models have been constructed through the years in order to improve efficiency. We present both binomial and trinomial tree models and various choices of their parameters. Our focus is on European and American put and call options. However, it remains a challenge to decide on the optimal parametrization of the tree.

Language:English
Keywords:option pricing, Cox-Ross-Rubinstein model, tree methods
Work type:Master's thesis/paper
Organization:FMF - Faculty of Mathematics and Physics
Year:2021
PID:20.500.12556/RUL-126499 This link opens in a new window
UDC:519.2
COBISS.SI-ID:60769539 This link opens in a new window
Publication date in RUL:24.04.2021
Views:646
Downloads:100
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Secondary language

Language:Slovenian
Title:Drevesne metode za vrednotenje opcij : magistrsko delo
Abstract:
Prvi drevesni model določanja cen opcij so Cox, Ross in Rubinstein predstavili nekaj let kasneje po revolucionarni formuli Blacka in Scholesa. Ponuja preprosto in intuitivno metodo določanja cen, uporablja pa se lahko tudi za odločanje o zgodnji izvršitvi opcij. V tem delu je prikazano, kako zgraditi ta drevesni model in izpeljati cenovno formulo. Ko se število časovnih korakov n poveča, se cena, dobljena z drevesno metodo, približa ceni iz Black- Scholesovega modela. Ta konvergenca je dokazana in raziskovana v tem delu. Stopnja konvergence je počasna in nihajna, zato razpravljamo o tem, kako to konvergenco pospešiti. Številni drugi drevesni modeli so bili skozi leta izdelani za izboljšanje učinkovitosti. Predstavljamo tako binomski kot trinomski drevesni model in različno izbiro njihovih parametrov. Naš poudarek je na evropskih in ameriških prodajnih in nakupnih opcijah. Vendar ostaja izziv, kako določiti optimalno parametrizacijo drevesa.

Keywords:vrednotenje opcij, Cox-Ross-Rubinstein model, drevesne metode

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