Volume refers to the number of stocks bought or sold that day.

Stock trading volume refers to the trading volume reached by both parties on the same day, which can be calculated by buying or selling, because they are equal. Because I sold it again because I bought it again.

The trading volume of the stock market is the number of transactions reached by buyers and sellers, which is unilateral. For example, the trading volume of a stock is100,000 shares, which means that it is reached by the wishes of buyers and sellers. Calculated, the trading volume is100000 shares, that is, the buyer buys100000 shares and the seller sells100000 shares. The calculation of trading volume is bilateral, for example, the buyer100,000 shares plus the seller100,000 shares is 200,000 shares. The volume of the stock market reflects the number of transactions. Generally, it can be measured by two indicators: the number of shares traded and the transaction amount. At present, both indicators of Shenzhen and Shanghai stock markets can be displayed.