The average price refers to the average price level in a period of time, which reflects the price trend in a certain period; The calculation method is the arithmetic average of the highest price and the lowest price of the day; In futures and stocks, it is a simple moving average, which reflects the average price trend in a certain period. The usual calculation method is to sum the daily closing prices within n days (n > = 1) and find the arithmetic average. The function of reflecting and reflecting the price trend in a certain period.