01Three parts, one story
MACD line
EMA(12) − EMA(26)
Positive when the fast average is above the slow one.
Signal line
EMA(9) of the MACD line
Histogram
MACD line − signal line
Growing bars = accelerating momentum; shrinking bars = decelerating.
02Reading it like a professional
- Above zero: the 12 EMA is above the 26 EMA — a bullish backdrop. Below zero is bearish.
- Crosses: MACD crossing its signal line is a momentum shift; crosses that agree with the zero-line bias are better.
- Histogram: peaks in the histogram often precede peaks in price.
- Divergence: just like RSI, price highs not confirmed by MACD highs warn of exhaustion.
Pro insightThe pullback cross
In an uptrend, the strongest MACD buy is often a bullish cross that happens below zero after a pullback, while price holds above the 200 EMA. That is the logic behind the MACD Pullback Momentum template in the Backtester.
Watch outMACD is built from moving averages
It inherits their lag. By the time a slow cross appears, much of the move may be over. Use MACD for context and confirmation, not as a stand-alone trigger.
Key takeaways
- MACD = 12 EMA − 26 EMA; signal = 9 EMA of MACD.
- Above zero = bullish backdrop; below zero = bearish.
- A shrinking histogram signals fading momentum.
- MACD lags — use it to confirm, not to predict.
Common mistakes
- Taking every signal-line cross
- Ignoring which side of zero the cross happens on
- Using default settings on every timeframe without testing
Complete “RSI & Divergence” to unlock this challenge.