“…It can be said that the properties of financial return series are nonnormal, nonindependent, and nonlinear, self-similar, with heavytails, in both autocorrelations and cross-correlations, and volatility clustering [2][3][4]. Since fractional Brownian motion has two substantial features such as self-similarity and longrange dependence, using it is more applicable to capture behavior from financial asset [3]. Also, the fractional Brownian motion is neither a Markov process nor a semimartingale, and thus we cannot apply the common stochastic calculus to analyze it.…”