Volume, or the amount of trading activity per security, is one way for investors to gauge investment trends as well as momentum. How much trading interest does a security have? One way to measure it ...

— -- Q: When a stock is actively traded in terms of volume, does that mean it's a good or a bad investment? A: Used car buyers often take comfort knowing they're buying from the original owner.

Volume-weighted average price, or VWAP, is the average price of a security throughout the trading day using both price and volume as variables. VWAP is a data point used in the technical analysis of ...