Trading Volume
-The number of shares or contracts traded in a security or an entire market during a given period of time. It is simply the amount of shares that trade hands from sellers to buyers as a measure of activity. If a buyer of a stock purchases 100 shares from a seller, then the volume for that period increases by 100 shares based on that transaction.
Volume is a good indicator for market liquidity which describes the possibility to sell/buy a share/contract on that market.
