Concept

Spring

Spring, also known as terminal shakeout, is a Wyckoff concept. The Library holds 1 implementations, each one a working definition you can pull into Quant.

Top Spring indicators

1 total

What is a Spring?

A spring is a Wyckoff event at the bottom of an accumulation trading range: price breaks below the range's support, finds little further selling, and quickly reverses back inside. The dip triggers stops below the lows and invites breakdown shorts, but the lack of follow-through shows supply is nearly exhausted, and larger buyers use the flush to complete their positions. In the classic Wyckoff Accumulation Schematic it is the phase C test that precedes markup.

Wyckoff-school sources grade springs by the volume on the undercut and on the test that follows; the deeper, higher-volume version is often called a terminal shakeout, though many modern sources use the two terms interchangeably. Other frameworks describe the same footprint as a liquidity sweep or false breakout of the range lows. The label is earned in hindsight: an undercut that keeps falling was simply a breakdown.

How to identify a Spring

A spring only exists in context: an established accumulation-style trading range has to come first.

  1. 1Frame the range: mark the support defined by the selling climax and later tests, with price ranging above it long enough that stops have accumulated below the lows.
  2. 2Watch the undercut: price breaks under support, ideally without volume expanding with the break, and re-enters the range within a few bars rather than accepting below it.
  3. 3Demand the test: a quiet pullback that holds above the spring low is the confirmation most Wyckoff texts require; a close back below the spring low cancels the read.

How traders use it

  • As an entry model inside accumulation: the classic sequence is spring, then a low-volume test that holds above the spring low, then a long entry with the stop below the spring. The test is the confirmation step most Wyckoff texts require before acting.
  • As a supply gauge: the volume on the undercut matters. Modest volume that dries up as price re-enters the range supports the accumulation read, while heavy, persistent selling that keeps the market below support argues for a genuine breakdown instead.
  • As a cross-school translation: structure traders treat springs, sweeps of sell-side liquidity, and swing failure patterns at range lows as versions of the same trap, which helps when reading material from either tradition.

Related concepts · Accumulation schematic

Concept family

Wyckoff

17 concepts mapped · 8 in the Library

Spring FAQ

What is the difference between a spring and a terminal shakeout?

Both are penetrations of accumulation-range support that reverse back into the range. The common reading is a matter of degree: a spring is a relatively shallow undercut, while a terminal shakeout is deeper and more violent, on heavier volume, and often the final event before markup. Plenty of modern material treats the terms as interchangeable, so expect usage to vary by source.

Does a spring guarantee the range will break out upward?

No. A spring is evidence that supply below the range was thin at that moment, not a guarantee of markup. Wyckoff practice waits for confirmation: a quiet test that holds above the spring low, then a sign of strength on expanding volume. If price later closes back below the spring low, the accumulation read is invalidated.

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