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A volatilidade Ă© um conceito muito importante no contexto financeiro e econĂłmico, uma vez que se refere a uma medida de flutuação no preço ou na taxa de retorno de um ativo ao longo do tempo. Ă considerado um dos aspetos mais importantes a ter em conta para quem quer investir no mercado financeiro, uma vez que relaciona a maneira como o preço de um determinado ativo se comporta no mercado. A previsĂŁo da volatilidade Ă© crucial para qualquer pessoa que esteja inserida no mercado financeiro, uma vez que proporciona insights para a gestĂŁo do risco, tomada de decisĂ”es de possĂveis investimentos e execução de estratĂ©gias de negociação eficazes. Este estudo pretende analisar o padrĂŁo da volatilidade dos mercados de açÔes do Ăndice S&P500 e PSI-20 para o perĂodo de 7 de janeiro de 2013 a 29 de dezembro de 2023. A relevĂąncia deste estudo centra-se na possibilidade de verificação da existĂȘncia de clusters de volatilidade, ou seja, se existem perĂodos de grande volatilidade de um ativo financeiro a serem seguidos por outros perĂodos de igual oscilação, atravĂ©s da aplicação de um modelo de heterocedasticidade condicionada GARCH â Generalized Autoregressive Conditional Heteroskedaticity Model.
Volatility is a fundamental concept in the financial and economic context, as it refers to a measure of fluctuation in the price or rate of return of an asset over time. It is considered one of the most important aspects to take into account for anyone who wants to invest in the financial market, as it relates to how the price of a particular asset behaves in the market. Predicting volatility is crucial for anyone involved in the financial market, as it provides insights for managing risk, making decisions about possible investments, and executing effective trading strategies. This study aims to analyze the volatility pattern of the S&P500 and PSI-20 stock markets for the period January 7, 2013 to December 29, 2023. The relevance of this study lies in the possibility of verifying the existence of volatility clusters, i.e. whether there are periods of high volatility in a financial asset followed by other periods of equal oscillation, through the application of a Generalized Autoregressive Conditional Heteroscedasticity (GARCH).
Volatility is a fundamental concept in the financial and economic context, as it refers to a measure of fluctuation in the price or rate of return of an asset over time. It is considered one of the most important aspects to take into account for anyone who wants to invest in the financial market, as it relates to how the price of a particular asset behaves in the market. Predicting volatility is crucial for anyone involved in the financial market, as it provides insights for managing risk, making decisions about possible investments, and executing effective trading strategies. This study aims to analyze the volatility pattern of the S&P500 and PSI-20 stock markets for the period January 7, 2013 to December 29, 2023. The relevance of this study lies in the possibility of verifying the existence of volatility clusters, i.e. whether there are periods of high volatility in a financial asset followed by other periods of equal oscillation, through the application of a Generalized Autoregressive Conditional Heteroscedasticity (GARCH).
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Volatilidade S&P500 PSI-20 Modelo GARCH Clusters Volatility GARCH model IPL/IDI&CA2023/RISKFIN_ISCAL
