A swing low is a local trough — a bar whose low is below the lows of the N bars immediately before and after. It is the mirror image of a swing high and is used the same way: to anchor stops on long trades and to define the levels that subsequent prices must break to flip structure.
Common N values are 2, 3, and 5. Lower N catches more swings but admits more noise; higher N catches fewer, more significant ones.
Like swing highs, swing lows are confirmed retrospectively. A platform that draws them in real time is always working with a delay of N bars.
Example
With N = 3, a bar at price 48,000 is a swing low if the 3 bars before and after it all printed lows above 48,000.
How Noon Barbari uses Swing low
Every concept here is implemented in the platform. Open the relevant docs or tool to see it in action.
Swing detection in the indicators →Related terms
- Market structure
Swing high
A local peak: a bar whose high is higher than the N bars on each side.
- Market structure
Lower low
A swing low that prints below the prior swing low — the signature of a downtrend.
- Market structure
Break of structure (BOS)
Price closing through a prior swing point in the direction of the existing trend.
- Market structure
Support
A price level where falling demand outpaces supply, halting or reversing declines.