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Master's Dissertation
DOI
https://doi.org/10.11606/D.92.2005.tde-01062023-103227
Document
Author
Full name
Luciano De Vicente Santos
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2005
Supervisor
Committee
Rosenfeld, Rogério (President)
Oliveira, Rogério de Deus
Vicente, Renato
Title in Portuguese
A relação entre o mercado de títulos e credit default swaps e o apreçamento da opção cheapest to deliver
Keywords in Portuguese
Crédito
Derivativos
Modelos matemáticos
Abstract in Portuguese
Esse trabalho tem o objetivo de apresentar ferramentas de análise e determinação dos preços de Credit Default Swaps (CDS) e títulos, e de explicar, qualitativamente e quantitativamente, os fatores geradores de risco de basis entre esses instrumentos. Como parte da explicação, esse trabalho apresenta um modelo matemático de apreçamento da opção cheapest to deliver (CTD) embutida em contratos de CDS, ainda pouco explorada em trabalhos até hoje publicados risco entre CDS e títulos, e discute os fatores geradores do risco de basis. Descreve um modelo de apreçamento de instrumentos de crédito a fim de identificar o valor do basis, e de estimar o prémio da opção CTD. Compara a volatilidade implícita do ativo subjacente dessa opção (preços de títulos em default) à volatilidade de ativos selecionados do mercado, e calcula, independentemente, o valor da opção CTD. Os resultados são comparados com o basis de mercado para comprovar o valor explicado pelo modelo e identificar o basis residual. Os testes são feitos para contratos de CDS e títulos de Brasil e Turquia com vencimento de dez anos.
Title in English
The relationship between the bond market and credit default swaps and the pricing of the cheapest to deliver option
Keywords in English
Credit
Derivatives
Mathematical models
Abstract in English
The objective of this paper is to introduce tools to calculate and analyze the Credit Default Swap (CDS) and bond spreads, and to explain, qualitatively and quantitatively, the factors that generate basis risk between them. As part of this explanation, this paper introduces a mathematical model to price the cheapest-to-deliver option (CTD) embedded in CDS spreads, a topic still barely discussed in published research papers . It starts with the definition of the risk-free relationship between CDS and bonds, and discusses its basis risk. It describes a model to evaluate credit instruments in order to identify the value of the basis risk and the implied CTD option premium. It compares the impiied volatility of the underlying asset (price of defaulted bonds) to the volatility of selected assets traded in the financial markets, and calculates, independently, the CTD option premium. These results are compared with the market basis in order to substantiate the explained and the residual basis. The tests are done with CDS and bonds issued by Brazil and Turkey maturing in ten years.
 
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Publishing Date
2023-06-01
 
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