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Candlestick formation · Bearish

Advance Block

What is it, in one line

Three green bodies, each smaller than the last.

Bearish · 3 candles · verdict: rule and thresholds below

Bearish 3 candles Traditional claim
Advance Block — 13 price bars ending on the bar where the Advance Block completes. The last 3 bars are the formation, shaded; the bars before them are the prior context the rule requires.
Verified example · fires the Advance Block rule · not a schematic

What has to be true

Three green bodies, each smaller than the last. The engine checks the formation as an executable condition over open, high, low and close, with a trend filter applied before the count is kept.

candles = 3 candles
direction = Bearish
trend filter = prior advance
forward window = 10 bars

Method

What the engine tests

Three consecutive up candles, each closing higher than the last, but with each body smaller than the one before and the upper wicks lengthening. The advance continues while visibly running out of force.

Family
Candlestick
Bars
3 bars
Direction
Bearish
Class
Reversal
Prior context
Uptrend
TA-Lib
CDLADVANCEBLOCK

The traditional claim

Traditionally read as a stalling rally — the same three-up-candle shape as three white soldiers, but weakening rather than strengthening.

How this detection is wrong

Three white soldiers and advance block are the same three up candles separated only by whether the bodies grow or shrink. A set of three rising candles will often satisfy neither.

The thresholds the detector uses

Published so the count can be reproduced. Every figure below is a parameter of the rule, not a preference: change one and the occurrence count changes with it.

Detection parameters for the Advance Block
ParameterMeaningDefault
trendPeriodbars of prior trend inspected5
minPriorSlopeprior slope must be above1
minFirstBodyAtrfirst body, at least, in ATR0.5
atrPeriodbars of ATR used to size everything below14
strict
Tighter thresholds. Fewer detections, each a cleaner example.
minPriorSlope 1.5 · minFirstBodyAtr 0.8
loose
Wider thresholds. More detections, more marginal ones.
minPriorSlope 0.5 · minFirstBodyAtr 0.3
no-context
The prior-trend requirement removed, so the shape alone fires.
minPriorSlope not applied

Easily mistaken for

These share enough geometry that a detector can return more than one of them on the same bar. The engine reports every match rather than picking a winner.

Every pair on the site that can be mistaken for another, and what separates each: the look-alikes index.

Common questions

What is a Advance Block candlestick pattern?

Three consecutive up candles, each closing higher than the last, but with each body smaller than the one before and the upper wicks lengthening. The advance continues while visibly running out of force. The detector also requires a prior uptrend, so the same shape in the wrong context is not counted.

Is the Advance Block bullish or bearish?

It is read as bearish. Traditionally read as a stalling rally — the same three-up-candle shape as three white soldiers, but weakening rather than strengthening.

When is a Advance Block not a Advance Block?

Three white soldiers and advance block are the same three up candles separated only by whether the bodies grow or shrink. A set of three rising candles will often satisfy neither.

How is a Advance Block detected?

As an executable rule over open, high, low and close, with 4 named parameters — including bars of prior trend inspected 5, prior slope must be above 1, first body, at least, in ATR 0.5 — all published on this page so the count can be reproduced. Strict and loose variants are defined as well, so the sensitivity of the count to those thresholds is visible rather than assumed.

Measurement pending re-run

No hit rate is published here yet. The run that would supply one was computed on engine ca6d9e36c81c; the engine is now cfb08765de7c. Its candlestick rows included the still-forming bar, and it predates the chart formations entirely, so those figures have been withdrawn rather than published with a caveat. The definition above is unaffected: it is what the detector tests, and no re-run changes it.

How this was measured →

Other 3-candle formations

All 107 →
Stalled Pattern Two long green bodies, then a small one gapping up.
Three Stars in the South Three shrinking red bodies with the range narrowing.
Unique Three River A long red body, a harami with a new low, then a small green.
Stick Sandwich Two red closes at the same price with a green candle between.

Size a trade on this setup before you take it.