The Oscillator is the one of the Techical Indicator that gravites between the two levels according to the price chart. The Oscialltor measure are designed to show the main asset that is potentially overbought and oversold. The oscillator can help the trader to measure the distance between the reversal and fluctuations.Momentum indicators, which are a type of oscillator, are graphic devices that can show how rapidly the price of a given asset is moving in a particular direction.