MACD Explained: Momentum's Turn Signal
2026-07-25 · 2 min read
"MACD: fresh bullish crossover" appears in many of our BUY reasons. Decoded, it's simpler than it sounds.
The machinery, in one paragraph
Take a fast moving average of price (12 days) and a slow one (26 days). MACD is just fast minus slow. When recent prices accelerate above the longer trend, the difference turns positive; when they sag below it, negative. A second line — the "signal" (a 9-day average of MACD itself) — smooths it, and the histogram shows the gap between the two.
The signals people talk about
- Bullish crossover — MACD rises above its signal line: short-term momentum has just turned up relative to its own recent past. That's the "turn signal" — often early in a fresh move.
- Bearish crossover — the mirror image.
- Above/below zero — above zero simply means the 12-day average is above the 26-day: the medium trend is up.
Why "fresh" matters
Our scoring gives extra weight to a crossover that happened *within the last few sessions*. A crossover from three weeks ago is old news — the move it announced is already underway or already dead.
Honest limitations
MACD is built from moving averages, so it lags — it confirms turns, it doesn't predict them. In choppy sideways markets it whipsaws: crossover up, crossover down, repeatedly, each one worthless. That's why our system never acts on MACD alone — it's one voice in a committee that includes trend, volume and RSI, and it earns the most weight when the ADX says a genuine trend is in force.
Read "MACD bullish crossover" as: *the engine just shifted into a higher gear — now check whether the road is clear.*
Educational content only — not SEBI-registered investment advice. Markets carry risk; do your own research and consult a registered adviser for personal decisions.