A resistance level is a price area where selling pressure has historically been strong enough to halt or reverse a rally. It is the mirror image of support: prior swing highs, range ceilings, and key moving averages from above are all common resistance zones.
Resistance is best thought of as a zone, not a line. The strength of the level scales with the number of prior touches, the volume on those touches, and how decisively price reversed off them.
When resistance breaks (a clean close above), it commonly flips polarity and becomes support on retests. 'Old resistance = new support' is a standard structural read.
Example
BTC stalls at 52,500 four times across a month. 52,500 is acting as resistance. A breakout close at 52,700 would flip it to support.
How Noon Barbari uses Resistance
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Build S/R-based rules →Related terms
- Market structure
Support
A price level where falling demand outpaces supply, halting or reversing declines.
- Market structure
Swing high
A local peak: a bar whose high is higher than the N bars on each side.
- Market structure
Range
Sideways price action bounded by a definable support and resistance.
- Market structure
Trend
A persistent directional drift in price — up, down, or sideways.