Support and resistance are the price levels where the market has repeatedly paused or reversed. Support is a floor where buyers have stepped in before; resistance is a ceiling where sellers have. They are not magic lines — they are memory. Enough traders remember a level that their orders cluster there again, which makes the level matter precisely because everyone is watching it.
Why levels form
Three forces stack up at a level: traders who profited there and want to repeat it, traders trapped on the wrong side who want to exit at breakeven, and traders who missed the first move and want a second chance. Their resting orders concentrate around the same price, creating the supply or demand that stalls the next approach.
Drawing them well
- Think in zones, not hairlines — a level is a band a few ticks wide, not a single price.
- More touches = more significant, but too many touches can mean the level is weakening.
- Higher-timeframe levels outrank lower-timeframe ones (see the previous lesson).
- Use bodies and wicks: a cluster of wick rejections marks the zone better than one exact high.
The flip: support becomes resistance
When price breaks decisively through support, that old floor often becomes a new ceiling — and vice versa. The mechanism is psychology: buyers who bought the old support are now underwater and sell into any return to breakeven, turning former demand into fresh supply. This "polarity flip" is one of the most reliable patterns in technical analysis and a high-quality place to look for entries after a breakout retest.
How levels break
Not every touch holds. Repeated tests tend to weaken a level as the resting orders get absorbed — the third or fourth test often breaks where the first held. Volume helps you read it: a break on strong volume is more trustworthy than a quiet drift through, which is often a stop-hunt that snaps back.