Look at almost any price chart and you will see the price stall, turn, or break through at levels it has visited before. Those levels are called support and resistance, and they are probably the most widely used idea in technical analysis.
What they are
- Support is a price level where falling prices have tended to stop and turn up. Buyers have stepped in there before.
- Resistance is a level where rising prices have tended to stop and turn down. Sellers have stepped in there before.
They are not magic lines. They are places where many traders remember something happening, and so many traders place orders there. That concentration of orders is what makes price react.
Why levels work at all
Three groups of people care about the same level:
- Traders who bought there before and want to buy again if the price returns.
- Traders who missed the move and are waiting for a second chance at the same price.
- Traders who bought higher and are losing, and will be glad to sell at break-even when the price comes back.
Each group is thinking about the same number. That is why a level can hold, and also why it can break sharply once it gives way: a lot of stop orders sit just beyond it.
How to draw them without clutter
- Start on a higher timeframe. Levels visible on the daily or 4-hour chart matter more than ones you can only see on the 5-minute chart.
- Look for clear turning points. Mark where price turned decisively, not every small wiggle.
- Think in zones, not single prices. A level is usually a band a few ticks or a few dollars wide. Wicks will poke through it.
- Keep it to a few. Two or three levels above the price and two or three below are usually enough. A chart covered in lines tells you nothing.
- Round numbers count. Levels like 4,000 on gold or 1.1000 on EURUSD attract orders simply because people like round numbers.
When resistance becomes support
When price breaks cleanly above resistance and stays there, that old resistance often acts as support on the way back down. The same works in reverse. Traders call it a role reversal or a "flip". A retest of a broken level is one of the most common places to look for an entry.
Using levels in a trade
Entries
Buying near support or selling near resistance means your entry is close to the point where the idea is proven wrong. That keeps the stop tight.
Stops
The stop belongs just beyond the level, on the side that would show the idea has failed, and outside the normal noise. Not exactly on it, where everyone else's stop sits. More on placement in what a stop-loss is.
Targets
The next level in the direction of the trade is a natural first target. Price often slows there, even if it eventually breaks through.
Common mistakes
- Treating a level as a wall. A level is a place where reaction is more likely, not certain.
- Drawing levels to fit the trade you already want.
- Ignoring the bigger trend. Support in a strong downtrend breaks more often than it holds.
- Expecting exact prices. Markets overshoot. Leave room.
Support and resistance with other tools
Levels work best combined with something else: the trend, a moving average, or what the order flow shows at the level. When several independent reasons point at the same price, the level deserves more attention.
In short
Support and resistance are price zones where many traders have acted before and are likely to act again. Draw a few, from higher timeframes, as zones. Use them to place entries close to where you would be wrong, stops just beyond them, and targets at the next level along.
Educational content, not investment advice. Trading carries risk, including the loss of capital.