Bill Williams indicators
Alligator
Three smoothed averages (jaw, teeth and lips) shifted into the future: when they are tangled the "alligator sleeps" (no trend); when they fan out, it "eats" (trend).
L’idée en termes simples
Markets trend only part of the time. The three lines, each slower and shifted further forward, help you see whether the market is resting or moving, and in which direction.
Mode de calcul
Smoothed moving averages of the median price (high + low) ÷ 2: Jaw 13 periods shifted 8 candles, Teeth 8 shifted 5, Lips 5 shifted 3.
Jaw = SMMA(median, 13) shifted 8 forward (blue)
Teeth = SMMA(median, 8) shifted 5 forward (red)
Lips = SMMA(median, 5) shifted 3 forward (green)Comment l’utiliser
- Lines intertwined: no trend, wait.
- Lips above Teeth above Jaw, all rising and spreading: uptrend; the reverse order: downtrend.
- Exit or tighten stops when the lines start to converge again.
Tirer des conclusions
- The wider the gap between the lines, the stronger the trend.
Exemple
After a week of tangled lines on GBPUSD H4, the green line crosses above red and blue and the three fan out upward: the alligator wakes up hungry.
Les prix des exemples sont donnés à titre d’illustration.
Points de vigilance
- The lines are slow; part of every trend is gone by the time they fan out.
Un peu d’histoire
Bill Williams, "Trading Chaos" (1995).
Contenu éducatif uniquement. Aucun indicateur ni aucune figure ne prédit l’avenir, et rien ici ne constitue un conseil en investissement.