“Ombro-Cabeça-Ombro”: Testando a Lucratividade do Padrão Gráfico de Análise Técnica no Mercado de Ações Brasileiro
[Head and Shoulder: testing the profitability of graphic pattern of technical analysis for the Brazilian Stock Exchange]
AbstractStarting from an adapted version of Osler and Chang (1995) methodology, this article empirically evaluates the profitability of investment strategies based on identification of the Head and Shoulders chart pattern in the Brazilian stock market. For that purpose, several investment strategies conditioned by the identification of the Head and Shoulders pattern (in its basic and inverted forms) by a computer algorithm in daily price series of 30 stocks from January 1994 to January 2009 were defined. Confidence intervals consistent with the null hypothesis that no strategies with positive returns can be based only on historical data were constructed using the Bootstrap sample inference technique in order to test the predictive power of each strategy. More specifically, the mean returns obtained by each strategy when applied to the stock’s price series were compared to those obtained by the same strategies when applied to 1.000 artificial price series - for each stock - generated in a parametric manner, by an E-GARCH, and in a nonparametric one. Overall, our results show that it is possible to create strategies conditioned by the occurrence of Head and Shoulders, with positive returns, which indicates that these patterns can capture from stock historical prices some signals about their future price trend that makes possible to create profitable strategies. Nevertheless, the same conclusions are not valid for the pattern in its inverted form and when the effects of taxes and transaction costs are considered, depending on their magnitude, neither in its basic form.
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Bibliographic InfoPaper provided by University Library of Munich, Germany in its series MPRA Paper with number 15653.
Date of creation: Jan 2009
Date of revision:
Charting; Technical Analysis; Bootstrap; E-GARCH; investment strategy; Head and Shoulders; Osler and Chang;
Other versions of this item:
- Pereira, Pedro Luiz Valls, 2009. "“Ombro-cabeça-ombro” : testando a lucratividade do padrão gráfico de análise técnica no mercado de ações brasileiro," Textos para discussÃ£o 181, Escola de Economia de São Paulo, Getulio Vargas Foundation (Brazil).
- G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
- C53 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Forecasting and Prediction Models; Simulation Methods
This paper has been announced in the following NEP Reports:
- NEP-ALL-2009-06-17 (All new papers)
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