marinellirubens / magic_formula Goto Github PK
View Code? Open in Web Editor NEWPrograma para gerar uma planilha baseada na Magic Formula concebido por Joel Greenblat no livro 'The little book that beats the market'.
License: Apache License 2.0
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Possivel erro no calculo do Earning Yield
Olá Rubens,
Primeiramente parabéns pelo projeto, código muito bem comentado e organizado :).
Acredito que a formula correta para o calculo do Earning Yield seja: (self.ebit / self.tev) e não como está aqui (self.tev / self.ebit). Veja esse post onde o Ramiro do CDV fala sobre a Magic Formula e define o Earning Yield (a menos que eu tenha entendido errado o livro também define desse modo). Do modo que está atualmente, você está calculando o inverso do Earning Yield (algo muito próximo da P/L), portanto a interpretação deve ser oposta também (menor melhor) e não maior melhor como está.
Você acha que isso é uma inconsistência ou eu entendi algo errado?
Atenciosamente,
Edresson Casanova.
error when logs folder does not exists.
Issue to remenber to change the program to avoid that error.
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