The leading index, also called "Economic Leading Indicator" or "Index of Leading Indicators", refers to the weighted average of a series of relevant economic indicators and economic variables that guide the economic cycle.

It is mainly used to predict changes in the overall economy and measure economic trends in the coming months.

It is one of the most important economic indicators for predicting future economic development and is the weighted average of various economic variables that guide the economic cycle.

The term "Shanghai Leading" is a stock term.

The meaning of the white and yellow lines in the Shanghai Composite Leading Indicator.

The white line is the trend chart of the Shanghai Composite Index, and the yellow line is the trend chart of the Shanghai Composite Leading Index without weighting.

Since the Shanghai Composite Index is weighted by the total share capital of each listed company, stocks with large stocks, such as PetroChina and Sinopec, are more able to influence the trend of the Shanghai Composite Index.

The yellow line represents the Shanghai Composite Index without weighting, and the weights of each stock are equal.

Extended information: To calculate a stock index, three factors must be considered: first, sampling, that is, selecting a few representative constituent stocks from many stocks; second, weighting, which is a weighted average based on unit price or total value, or an unweighted average; third,

Calculation program to calculate the arithmetic mean, geometric mean, or both price and total value.

Due to the wide variety of listed stocks, the work of calculating the price average or index of all listed stocks is arduous and complex. Therefore, people often select several representative sample stocks from the listed stocks and calculate the price average of these sample stocks.

or index.

It is used to express the general trend and rise and fall of stock prices in the entire market.

Sample stocks must be typical and ordinary. To this end, the selection of samples should comprehensively consider factors such as industry distribution, market influence, stock grade, and appropriate quantity.