Autocorrelation Testing

Definition

Autocorrelation testing identifies the persistence of price movements or volatility clusters within digital asset markets by measuring the linear dependence of a time series on its own historical values. Quantitative analysts utilize this mechanism to detect inefficiencies where past returns predict future performance, which directly contradicts the Efficient Market Hypothesis. Identifying these dependencies is essential for constructing high-frequency trading models that exploit non-random trends in cryptocurrency price action.