Williams % R (WillR)

The %R indicator was developed by Larry Williams and introduced in his 1979 book How I Made $1,000,000 Trading Commodities Last Year. Williams %R is similar to a stochastic oscillator, as it normalizes the price as a percentage between 0 and 100. It is basically an inverted version of the 'Raw %K' value of a Fast Stochastic.

Selecting the Williams %R indicator allows you to set the Period (as number of minutes) and the color of the result.

Configuration Options

  • Period: Number of bars to use in the calculations.
  • Color Selectors: Colors to use for graph elements.
  • Over Zones Enabled: Whether to shade the area between the plot and the horizontal overbought and oversold levels.
  • Over Bought: Overbought quantity
  • Over Sold: Oversold quantity
  • Display Axis Label: Whether to display the most recent value on the Y axis.


\[ \%R = -100 \times \left ( \frac{( Highest\; High - Close)}{(Highest\; High - Lowest\; Low )} \right ) \]


  • Close = the current closing price
  • Highest High = the highest high in the past n periods
  • Lowest Low = the lowest low in the past  n periods