A trend-following momentum indicator showing the relationship between two EMAs. It’s calculated as the 12-period EMA minus the 26-period EMA. The resulting MACD line is plotted with a 9-period EMA “signal” line. A common rule: buy when MACD crosses above its signal line, and sell when it crosses below. Robots use MACD crossovers or divergences (MACD vs. price) as trade signals. In MetaTrader use iMACD(), and in cAlgo use Indicators.MacdHistogram() or Macd().

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