Levels are memory
Support is a price where buyers have repeatedly stepped in; resistance is where sellers have. They exist because market participants remember those prices — someone who bought at the top is waiting to 'get out even' at resistance.
The more times a level is tested, and the more volume traded there, the more significant it is. Round numbers and prior all-time highs act as psychological levels.
The flip
When price finally breaks through resistance, that old resistance often becomes new support (and vice-versa). This 'polarity flip' is one of the most useful ideas in TA — a broken level you can lean on.
Levels are zones, not exact prices. Treat them as areas a few percent wide, not razor lines, or you'll be stopped out by noise.
What makes a level strong
Not all levels are equal. A level earns respect from:
- Number of touches — the more times it's held, the more eyes are on it.
- Volume traded there — a high-volume node is real memory, not a random wick.
- Recency and significance — a prior all-time high or a big gap edge outranks a minor intraday level.
- Confluence — when a swing level, a round number and a moving average stack in one zone.
Trading around levels
Don't buy blindly at support or sell blindly at resistance — wait for a reaction that shows the level is holding (a bounce, a rejection candle), or trade the break/re-test. Levels are zones a few percent wide, so set stops beyond the zone, not at the exact line, or noise will shake you out of a level that's actually holding.