Candlestick formation · Bullish
What is it, in one line
A gap between two candles, where the second candle's low is above the first candle's high.
Bullish · 2 candles · verdict: rule and thresholds below
A gap between two candles, where the second candle's low is above the first candle's high. 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
Two candles with no overlap of their ranges. The low of the second is strictly above the high of the first, leaving an untraded price band — the window. Nison treats the window as support: the classical reading is that a rising window holds and price resumes upward, and that the pattern is negated when price closes back through it.
The traditional claim
Read as a continuation signal in an uptrend, with the window itself acting as support on any pullback.
How this detection is wrong
A one-tick separation is not a window on any instrument with a meaningful spread, so minGapAtr floors the gap against ATR. Without that floor this fires on essentially every bar of a thin session and the count is dominated by the instrument's tick size rather than by anything a reader would call a gap.
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 |
| atrPeriod | bars of ATR used to size everything below | 14 |
| minGapAtr | gap between bars, at least, in ATR | 0.15 |
| minPriorSlope | prior slope must be above | 0.5 |
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.
What is a Rising Window candlestick pattern?
Two candles with no overlap of their ranges. The low of the second is strictly above the high of the first, leaving an untraded price band — the window. Nison treats the window as support: the classical reading is that a rising window holds and price resumes upward, and that the pattern is negated when price closes back through it. The detector also requires a prior uptrend, so the same shape in the wrong context is not counted.
Is the Rising Window bullish or bearish?
It is read as bullish. Read as a continuation signal in an uptrend, with the window itself acting as support on any pullback.
When is a Rising Window not a Rising Window?
A one-tick separation is not a window on any instrument with a meaningful spread, so minGapAtr floors the gap against ATR. Without that floor this fires on essentially every bar of a thin session and the count is dominated by the instrument's tick size rather than by anything a reader would call a gap.
How is a Rising Window detected?
As an executable rule over open, high, low and close, with 4 named parameters — including bars of prior trend inspected 5, bars of ATR used to size everything below 14, gap between bars, at least, in ATR 0.15 — 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.
Same shape, opposite reading
The shapes are close, and the prior trend is what decides which one fired: this rule requires a preceding uptrend, its mirror a preceding downtrend.
Falling Window: A gap between two candles, where the second candle's high is below the first candle's low.