A level is a price where something happened before and is likely to happen again. That is a weak-sounding definition and it is deliberately weak, because the strong versions people are taught are mostly wrong.
Why a level works at all
Not magic, and not because the number is special. Three ordinary reasons:
- 1.Memory. Traders remember where a move started or ended, and place orders there.
- 2.Stops. Anyone who bought at a level tends to put a stop just under it. Those stops are a cluster of orders sitting in one place.
- 3.Round numbers. People think in round figures. Orders pile up at them because humans place them there, not because the number has meaning.
All three are the same thing described three ways: a level is a place where orders are unusually concentrated. Price stalls there because there is something to trade against.
Which levels are worth marking
The strongest levels share three properties, in this order:
- Reaction, not just touch. Price did something at it - reversed, or accelerated through. A price it drifted past is not a level.
- Recency. Last week matters more than last year. Positions get closed and memory fades.
- Obviousness. If you needed a tool to find it, most participants have not seen it and no orders are sitting there.
Round numbers
On gold the whole and half-dollar figures attract orders disproportionately, for no reason other than that people like round numbers. It is a self-fulfilling structure: everyone expects a reaction there, so everyone places orders there, so there is a reaction.
Round numbers do not predict direction. They mark places where price is more likely to pause, and where stop clusters build up - which matters for the next lesson.
A level is a zone
The single most common beginner error is treating a level as an exact price. It is not. It is an area, because the orders creating it were placed at slightly different prices by different people at different times.
Drawing it as a line and expecting a reaction to the cent produces two failures: getting stopped by a normal overshoot, and missing entries because price turned a few pips early. Both are the same mistake.
Too many lines
If your chart has fifteen levels on it, you have no levels - you have a grid, and price is always near one of them, so you can always justify a trade.
Three to five that you could defend out loud is a working chart. If you cannot say why a line is there, delete it.