Williams %R is an inverse indicator to Fast Stochastic Oscillator.
Williams %R is measured between 0 and -100 and reflects a level close to
the highest high when looking back in a specified periods range. Values in
0/-20 range are considered that a stock is overbought, and values in a
range -80 to -100 are considered and oversold.
These are two typical ways to generate stock signals
using Williams %R: buy when Williams %R is falling below
-80 and sell when Williams %R rises above -20 level; or buy when Williams
is changing direction to an upward and sell when Williams %R goes into a
Stock Predictor - chart
and run trading
strategies using it.