Channels
Andrews' pitchfork
Three parallel lines from three swing points: a median line that prices often return to, and two outer lines.
La idea en pocas palabras
Dr Alan Andrews observed that after three swing points, prices tend to come back to a line from the first point through the middle of the other two, about 80% of the time by his account. The outer prongs mark the edges of the likely path.
Cómo se calcula
Click the start of the move (handle), then the next high and the next low (or low and high). The median line runs from the handle through the midpoint of points 2 and 3; parallels pass through points 2 and 3.
Median line: from point 1 through the midpoint of points 2 and 3
Upper and lower prongs: parallel to the median through points 2 and 3Cómo usarlo
- Expect prices to gravitate to the median line.
- The outer prongs act as support and resistance.
- Failing to reach the median line hints at a reversal.
Sacar conclusiones
- A break outside the pitchfork suggests the trend structure has changed.
Ejemplo
After a low, a high and a higher low on GBPUSD, the pitchfork's median rises; the price reaches it a week later and pauses.
Los precios de los ejemplos son ilustrativos.
Ten cuidado con
- Choosing the three points is a judgement call; different choices give different forks.
Un poco de historia
Dr Alan Andrews taught the technique from the 1960s, building on ideas of Roger Babson.
Solo contenido educativo. Ningún indicador ni patrón predice el futuro, y nada de lo aquí expuesto es asesoramiento de inversión.