The MACD is a trend-following momentum indicator that shows the relationship between two moving averages of price. It helps traders identify trend direction, momentum shifts, and potential entry/exit signals.
How MACD Works
MACD is made of three components:
- MACD Line → (12-period EMA – 26-period EMA)
- Signal Line → 9-period EMA of the MACD line
- Histogram → Difference between MACD line and Signal line
Plotted together, these elements show changes in momentum and possible trade signals.
Key Signals
- MACD Line crosses above Signal Line → Bullish signal (momentum turning up)
- MACD Line crosses below Signal Line → Bearish signal (momentum turning down)
- Histogram grows larger → Strengthening momentum
- Histogram shrinks → Weakening momentum
How to Use MACD in Trading
- Trend Confirmation:
If MACD is above 0 → bullish trend bias
If MACD is below 0 → bearish trend bias - Entry Signals:
Bullish crossover near/under 0 → strong buy signal
Bearish crossover near/above 0 → strong sell signal - Divergence:
- Bullish Divergence: Price makes lower lows, but MACD makes higher lows → possible trend reversal upward
- Bearish Divergence: Price makes higher highs, but MACD makes lower highs → possible trend reversal downward
Limitations
- Works best in trending markets, less reliable in ranging conditions
- Can give false signals in choppy sideways markets
- Should be combined with support/resistance and chart patterns