Candlestick formation · Bullish
What is it, in one line
Four falling red candles, then a green candle opening with a gap.
Bullish · 5 candles · verdict: rule and thresholds below
Four falling red candles, then a green candle opening with a gap. 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.
Method
Five candles: three consecutive down candles each closing lower, a fourth down candle that finally shows an upper wick, then an up candle that opens above the fourth candle’s open. The first sign of a bid appears in the fourth candle’s wick.
The traditional claim
Traditionally read as a bullish reversal built rung by rung, with the fourth candle’s wick as the turn.
How this detection is wrong
The fourth candle’s upper wick is the pattern. Without it this is four down candles and a bounce.
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.
| Parameter | Meaning | Default |
|---|---|---|
| trendPeriod | bars of prior trend inspected | 5 |
| maxPriorSlope | prior slope must be below | -1 |
| minBodyAtr | body, at least, in ATR | 0.3 |
| minFourthUpperPct | upper wick of the fourth bar, at least | 0.15 |
| atrPeriod | bars of ATR used to size everything below | 14 |
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.
Five candles: three consecutive down candles each closing lower, a fourth down candle that finally shows an upper wick, then an up candle that opens above the fourth candle’s open. The first sign of a bid appears in the fourth candle’s wick. The detector also requires a prior downtrend, so the same shape in the wrong context is not counted.
It is read as bullish. Traditionally read as a bullish reversal built rung by rung, with the fourth candle’s wick as the turn.
The fourth candle’s upper wick is the pattern. Without it this is four down candles and a bounce.
As an executable rule over open, high, low and close, with 5 named parameters — including bars of prior trend inspected 5, prior slope must be below -1, body, at least, in ATR 0.3 — 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.