A term in technical analysis that represents a security's uptick volume minus its downtick volume over a specified period. The net volume of a stock is a consolidated total of the positive and negative movements of the security over the period. A stock that is said to have had a positive net volume over a given period will have seen greater upward movement in its price than downward.
Net volume is an indicator that is also very similar to the idea of money flow. Along with other such indicators, the aforementioned "money flow index" is a useful indicator of net volume. Often traders use such an indicator to judge the momentum or trend of a stock in order to make assumptions about its future price movements.