Moving Average Convergence Divergence vs Signal Line

Moving Average Convergence Divergence is the full name of the MACD indicator, describing how two exponential moving averages move toward each other, apart from each other, and in opposing directions to signal trend momentum changes.

The 9-period EMA of the MACD line, plotted alongside it to generate crossover signals — when the MACD line crosses above the signal line it is bullish; when it crosses below it is bearish.