Technical analysis can help investors make informed decisions during off-hours trading, when information is harder to come by. Here's how it works.

Trading volume refers to the total number of shares or contracts traded in a given period. It’s used to measure the market’s activity and liquidity during a certain period of time — like a day. It’s ...

— -- Q: I want to know how many people are selling or buying stocks I own. Where can I find this information? A: What you're asking for is trading volume. Volume measures how many shares of a ...