MACD

The MACD indicator consists of three components: the MACD Line, calculated by subtracting the 26-period EMA from the 12-period EMA; the Signal Line, which is a 9-period EMA of the MACD Line itself; and the Histogram, which displays the difference between the MACD Line and the Signal Line as a bar chart.

Primary MACD signals are generated by crossovers between the MACD Line and the Signal Line: a MACD Line crossing above the Signal Line is considered a potential buy signal, while crossing below it indicates a potential sell signal. Additionally, the MACD Line crossing the zero line helps confirm a broader trend shift from bearish to bullish, or vice versa.

The histogram is used to gauge momentum strength; its expansion indicates an accelerating trend, while its contraction signals fading momentum and a potential upcoming reversal. MACD is also used to spot divergences following the same logic as the RSI, where a divergence between price action and the indicator highlights underlying weakness in the prevailing trend.

A common mistake is relying on MACD crossovers in sideways or ranging markets, which generate frequent false signals due to the lack of a clear trend. Furthermore, MACD is considered a relatively lagging indicator because it is derived from moving averages; therefore, it is best paired with faster momentum oscillators, such as the RSI or Stochastic, to refine entry and exit timing.