How to Use Stochastic Oscillator? Description and Trading with the Indicator

Stochastic Oscillator chart is drawn in a separate window under the price chart and consists of two lines: %K, quick one, and %D, slow one. Its values vary from 0% to 100%; at the levels of 20% and 80% signal lines, defining the oversold (0-20%) and overbought (80-100%) areas, are drawn.