By TheStreet Staff What Is Trading Volume? How much trading interest does a security have? One way to measure it is by looking at its trading volume. This represents the total number of shares that were traded over a specific timeframe—usually one trading day. When trading volume is high, that means that more shares were actively traded; when trading volume is low, that means that fewer shares were traded. It’s important to note that trading volume includes both buy and sell orders. Trading volume can be measured for most types of securities, including stocks, bonds, options, futures, and comm…