Definition of Autocorrelation



Autocorrelation measures the relationship between two or more variables by taking the current time series value vs the lagged value of the variable. Autocorrelation can either be positive or negative ranging between +1 and -1.  Positive 1 showed the perfect correlation between the two or more variables. Negative 1 shows the perfect negative correlation between the two or more variables.

 


The financial analyst uses autocorrelation to evaluate the value of the security by looking at the trends in the past values. Autocorrelation help technical analyst in predicting the future price of the security. If the stock has a high positive correlation value, it is making a solid gain.

 

 


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