Lines
Horizontal lines and rays (support and resistance)
A level line marking a price where the market has turned before and may react again.
La idea en pocas palabras
Traders remember prices. A level where buyers stepped in before (support) or sellers appeared (resistance) often matters again, because people who missed it last time place orders there.
Cómo se calcula
Click once at the price. A horizontal ray starts at your click and runs to the right.
A single price: support below the market, resistance above itCómo usarlo
- Mark recent highs and lows, round numbers and earlier breakout levels.
- Place alerts on the line: select it and press "Alert at this price".
Sacar conclusiones
- When resistance breaks, it often becomes support (and vice versa).
- The more often a level was tested, the more attention it gets, but each test can weaken it.
Ejemplo
GOLD has turned down three times near 2,400. A horizontal line at 2,400 marks resistance; a daily close at 2,420 is a breakout, and the old ceiling then acts as a floor on the pullback.
Los precios de los ejemplos son ilustrativos.
Ten cuidado con
- Levels are zones, not exact prices: allow a little room.
Un poco de historia
Support and resistance are the foundation of chart reading, described in classic texts such as Edwards and Magee's "Technical Analysis of Stock Trends" (1948).
Solo contenido educativo. Ningún indicador ni patrón predice el futuro, y nada de lo aquí expuesto es asesoramiento de inversión.