The KDJ indicator is an extended version of the Stochastic Oscillator that adds a J line, calculated as 3D minus 2K. The J line amplifies divergence between %K and %D, making the KDJ especially effective at spotting short-term overbought and oversold turning points in fast-moving markets.
This sample plots CSCO daily data as a spline series on the main plot and computes the KDJ oscillator with kPeriod 20, kMAPeriod 3, and dPeriod 12 in a 30% height subplot. The %K line is red (#e24b26), %D is green (#6e9c4e), and J is blue (#3c8ad8). The chart features dual Y-axes on both plots, a synchronized line scroller, a range picker, and a range selector, covering December 2001 to September 2006.
See the Technical Indicators documentation for all configuration options.