Velocity indicators are used during trending and momentum markets to track the acceleration of price.  By monitoring velocity indicators, you are better able to determine the strength of the move, and the probable duration of that move, up or down.

There are numerous velocity and momentum indicators to choose from.  Momentum indicators such as Price Rate of Change, Moneyflow, and Moneystream help a trader enter and exit momentum moving stocks.  These indicators are used by most styles of trading and can be incorporated into most strategies.