This factor aims to measure the deviation of a company's current profitability from its historical mean by Z-Score standardization of adjusted operating profit. Specifically, first calculate the adjusted operating profit, which is operating profit plus accounts receivable; then calculate the mean and standard deviation of the adjusted operating profit for the past T quarters (6 quarters by default); finally, perform the standardized calculation through the formula. The higher the Z-Score value obtained, the higher the company's current adjusted operating profit is relative to its historical level, which may indicate a stronger profit growth momentum. On the contrary, it may indicate a decline in profitability. This factor has strong practicality in fundamental quantitative analysis and can be used as one of the key indicators for identifying growth companies or potential profit inflection points.