Smart Scanners › Market structure

Spring and upthrust

Price penetrated the boundary of a trading range and closed back inside within a few bars. The bullish case is a spring, the bearish an upthrust.

What it looks like on a chart

A horizontal line at the range boundary that was penetrated, drawn forward from the recovery bar.

Settings, as they are actually applied on each timeframe. A dash means this scanner emits no settings string. Where a number differs by timeframe, that is a span of chart time resolved into bars.
Timeframe	Bars of history it reads	Settings	Events, last 30 days
M15	120	lookback 20 bars before the break, recovery limit 3, range wider than 8 ATR rejected	5381
M30	120	lookback 20 bars before the break, recovery limit 3, range wider than 8 ATR rejected	2645
H1	120	lookback 20 bars before the break, recovery limit 3, range wider than 8 ATR rejected	1286
H4	120	lookback 20 bars before the break, recovery limit 3, range wider than 8 ATR rejected	331
D1	120	lookback 20 bars before the break, recovery limit 3, range wider than 8 ATR rejected	48

Equal highs/lows two swings at the same price, one way a range boundary gets drawn
Prior day extreme the same penetrate-and-close-back-inside, at yesterday's extreme rather than a range boundary
Turtle Soup the daily version: a twenty-session extreme printed and given back