MACD Momentum

These were the original parameters chosen by Gerald Appel based on trading weeks (12 ≈ 2.5 weeks, 26 ≈ 1 month in 6-day trading weeks). They've remained popular because they work well across many markets. Modern traders sometimes adjust these but the defaults are a solid starting point.

MACD works best in trending markets where momentum can build. In ranging markets, MACD generates whipsaw signals as momentum oscillates without follow-through. Use ADX to confirm trending conditions before trusting MACD signals.

Wait for the bar to close to confirm the crossover. Intraday crosses can reverse by close. Enter on the confirmed crossover close or the next bar's open. Also check that the histogram is expanding to confirm momentum.

MACD is essentially a 12/26 EMA crossover with additional features: the Signal line (9 EMA of MACD) provides smoothed triggers, and the histogram visualizes momentum strength. EMA crossover is simpler; MACD provides more information about momentum.

No indicator can predict exact tops and bottoms. MACD shows momentum shifts and can warn of potential reversals through divergence, but it's not predictive. Use MACD for timing entries based on momentum, not for picking exact turning points.

Divergence is a warning, not a guaranteed signal. It indicates momentum is weakening but doesn't predict when reversal will occur. Multiple divergences are more reliable than single ones. Always wait for confirmation (signal cross) before acting on divergence.

The default (12, 26, 9) works broadly, but optimization may help for specific instruments. More volatile instruments might benefit from slower settings to filter noise. Test carefully with out-of-sample data and avoid over-optimization.

Signal crosses in the direction of zero line position are stronger. A bullish cross above zero is stronger than one below zero. Some traders only take signals aligned with zero line position. At minimum, reduce size on non-aligned signals.

Daily timeframe is most reliable for swing trading. Weekly for position trading. 4H for more active trading. Shorter timeframes generate more signals but also more noise. Match timeframe to your trading style and time availability.

Use MACD for direction and momentum timing, RSI for overbought/oversold filter. For longs: MACD bullish cross + RSI not overbought (< 70). For shorts: MACD bearish cross + RSI not oversold (> 30). This filters out signals at extremes.

Calculate 13 EMA direction (rising/falling) and MACD histogram direction (rising/falling). Green bar = both rising (only longs). Red bar = both falling (only shorts). Blue bar = mixed (no new positions). Enter only when impulse matches trade direction.

Track histogram peaks, not just crosses. Histogram typically peaks before price. Count consecutive bars in one direction - 5-8 is typical before reversal. Rate of change in histogram (acceleration/deceleration) provides early momentum clues.

In high volatility, use slower parameters (14, 30, 9) to filter noise. In low volatility, standard (12, 26, 9) or slightly faster (10, 22, 9) works. Use VIX/VFTSE as regime indicator. Can also widen the fast/slow gap in volatile conditions.

A properly implemented MACD system on FTSE 100 or UK stocks typically achieves Sharpe 0.7-1.1 over long periods. Enhanced versions with filters (ADX, RSI) can reach 1.0-1.3. Results vary with market conditions and parameters.

Score components: histogram strength (1-5 based on magnitude), zero line alignment (+2 if favorable), divergence bonus (+2 if confirming), volume (+1 if above average), multi-TF alignment (+2 if higher TF confirms). Sum scores, trade highest first.