This factor uses the form of year-on-year growth rate to compare the diluted earnings per share of the most recent 12 months (TTM) with the same period last year, thereby eliminating the impact of seasonal factors and more accurately reflecting the long-term growth trend of corporate earnings. The use of TTM data can smooth single-quarter fluctuations and make the factor more stable and reliable. This indicator is crucial for evaluating a company's ability to expand earnings, especially for value discovery of growth companies. A high growth rate usually means that the company has strong profitability and development potential, but it should also be considered in combination with other fundamental indicators, such as financial leverage, earnings quality, etc., to avoid potential risks hidden behind high growth rates. In addition, comparing increments and growth rates, growth rates are more comparable across companies. This formula uses an absolute value denominator to avoid calculation errors or meaningless results caused by a denominator of 0.