Momentum indicator

MACD Indicator

A trend-momentum oscillator built from the difference between fast and slow moving averages.

MACD Indicator

Original schematic showing the guide's principal visual relationships.

MACD IndicatorA trend-momentum oscillator built from the difference between fast and slow moving averages.

Formula and components

A trend-momentum oscillator built from the difference between fast and slow moving averages.

MACD = EMA(12) − EMA(26); Signal = EMA(9) of MACD; Histogram = MACD − Signal.

How it works

The indicator transforms price, range, or volume observations over a selected lookback. Shorter settings react faster but create more noise; longer settings respond more slowly and emphasize the underlying regime. Always compare the reading with price structure and timeframe.

How to read it

Zero-line position shows which average is dominant, signal-line crosses show momentum shifts, and histogram expansion or contraction shows acceleration.

Confirmation checklist

Compare the current reading with its centerline, thresholds, prior swing, and price action. Crossovers and divergences are context clues, not standalone entries.

Limitations and false signals

MACD is unbounded and should not be read as overbought or oversold. Sideways markets generate frequent low-quality crosses.