Net Volume is the difference between the number of shares or contracts of a security that have been bought and sold during a specific period of time. It is a measure of the activity level of a security or market and can be used to identify trends and patterns in trading activity.For example, if during a given period of time, 10,000 shares of a stock were bought and 8,000 shares were sold, the net volume for that period would be 2,000 shares (10,000 - 8,000). A positive net volume indicates that more shares were bought than sold and suggests that the stock is in an uptrend. A negative net volume indicates that more shares were sold than bought and suggests that the stock is in a downtrend.Net volume can be used in technical analysis to identify buying and selling pressure and to generate buy and sell signals. It is also used to confirm trend changes and to identify divergences between price and volume.It is important to note that Net volume can also be used in other financial markets like forex, futures, etc.