What is the use of Macd in trading ?

What does MACD 12, 26, 9 mean? The 12 from the Moving Average Convergence Divergence represents a moving average of the previous 12 bars. The 26 represents a moving average of the previous 26 bars. The 9 represents a moving average of the difference between the two moving averages 12 and 26 above.

MACD above zero signals bullish momentum, while MACD below zero is signals bearish momentum. When MACD moves into the positive territory from below the zero-line on a chart, it indicates divergence between the two moving averages. This means the bullish momentum is picking pace