MACD Bullish Crossover
The MACD line crossing above its own signal line — a shift in momentum, not a price shape.
Moving Average Convergence Divergence — a momentum indicator built from two EMAs; crossovers between its two lines flag shifting momentum. Unlike the patterns above, this one isn't about price shape at all — it's about momentum. MACD is built from the difference between two EMAs of price; the "signal line" is a smoothed average of MACD itself. When the faster MACD line crosses up through the slower signal line, short-term momentum has just turned positive relative to where it's been recently.
It's a momentum signal, not a price-target signal — it says nothing on its own about how far a move might go, only that the recent balance of buying vs. selling pressure has shifted.
Because MACD is lagging and relative, it's rarely traded alone — a bullish crossover is more commonly treated as confirming evidence alongside price action (for instance, one that lines up with a breakout above resistance) than as a standalone entry signal by itself. Where the crossover happens matters too: one occurring well below the zero line is sometimes read as momentum turning up from a genuinely oversold extreme, which carries a different implication than one happening right around zero, a far more marginal shift.
In a choppy, range-bound market, MACD can whipsaw — crossing back and forth across its own signal line repeatedly with no real, tradeable move following any single crossover. This is the single most common complaint about momentum-crossover systems generally, and is why they're typically paired with some kind of trend filter rather than used in isolation.
- This measures a *change* in momentum, not its absolute level — a crossover happening deep below zero and one happening near zero mean somewhat different things (the former is often read as momentum turning up from an oversold extreme).
- Momentum indicators like MACD are typically used alongside price action and other signals, not as a standalone buy trigger — crossovers can and do whipsaw in choppy, low-conviction markets.
- Because MACD is derived from EMAs, it inherently lags price — the crossover confirms a shift that's already partly happened, it doesn't predict one in advance.