The total quantity of shares or contracts traded for a specified security. It can be measured on any type of security traded during a trading day. Trade volume is measured on stocks, options contracts, bonds, futures, and all types of commodities. Volume includes the total number of shares transacted between a buyer and seller during a transaction. When a security is more actively traded, its trade volume is high. When less actively traded, the trade volume is low.
We don't know everything about the markets. We're just devoted to learners. Taken from those smarter than ourselves, here's how we define Volume.