Description
The Williams WILLR – also known as the Williams Percentage Range – is a momentum indicator that some traders use to find entry and exit points for their positions. It uses 0 to -100 as its values, with 0 being used to represent an overbought market, and -100 being used to represent an oversold market.
Traders will usually take a move above -20 towards 0 as a signal that an underlying market is overbought, and a move below -80 towards -100 as a signal that the market is oversold. In the price graph below, you can see the Williams %R underneath the price chart, with the overbought and oversold signals highlighted.