Compound Monthly Return or Geometric Return or Annualized Return

Average Gain or Gain Mean This is a simple average (arithmetic mean) of the periods with a gain. It is calculated by summing the returns for gain periods (return 0) and then dividing the total by the number of gain periods.

Average Loss or LossMean This is a simple average (arithmetic mean) of the periods with a loss. It is calculated by summing the returns for loss periods (return < 0) and then dividing the total by the number of loss periods.