%D Line vs Stochastic Oscillator

The %D line is the slower, smoothed signal line of the Stochastic Oscillator, calculated as a moving average of the %K line, used to generate crossover-based momentum signals.

The Stochastic Oscillator is a momentum indicator that measures where the current closing price sits relative to the high-low range over a specified lookback period, expressed as a percentage between 0 and 100.