OPEN-SOURCE SCRIPT
Actualizado Gap Fill Probability for SPY SPX XSP

Gap Fill Probability Viewer - open gaps with an adaptive fill probability
Gap Fill Probability Viewer automatically finds price gaps on your chart and draws each one as a colored zone - no more drawing rectangles by hand. It then tells you how likely each open gap is to "fill," and exactly how far price has to travel to close it.
What it shows
How the probability works
The estimate adapts to three things research associates with gap fills:
- Size - bigger gaps are harder to fill.
- Distance - the closer price is to the gap, the higher the odds.
- Recency - fresh gaps fill faster; old, stubborn gaps lose momentum.
Handy options
- Auto-hide, fade, or keep gaps once they fill.
- Filter out tiny gaps by % or ATR.
- Detect gaps on wicks or candle bodies.
- Fully tunable probability model and colors.
⚠️ The fill probability is a heuristic estimate for study and education — not a guarantee or financial advice. Calibrate the settings to your own market and timeframe.
Gap Fill Probability Viewer automatically finds price gaps on your chart and draws each one as a colored zone - no more drawing rectangles by hand. It then tells you how likely each open gap is to "fill," and exactly how far price has to travel to close it.
What it shows
- Gap zones - every gap-up and gap-down, drawn as a box that extends to the current bar.
- Fill probability (P) - an estimate of how likely the gap is to close, shown as a % and color-coded (green = likely, orange = uncertain, red = unlikely).
- p-value - the flip side of P: the chance the gap stays open.
- Distance to close - how far the current price is from fully closing the gap, in both points and % of the charted symbol.
- Stats table - a clean summary for the gap closest to filling.
How the probability works
The estimate adapts to three things research associates with gap fills:
- Size - bigger gaps are harder to fill.
- Distance - the closer price is to the gap, the higher the odds.
- Recency - fresh gaps fill faster; old, stubborn gaps lose momentum.
Handy options
- Auto-hide, fade, or keep gaps once they fill.
- Filter out tiny gaps by % or ATR.
- Detect gaps on wicks or candle bodies.
- Fully tunable probability model and colors.
⚠️ The fill probability is a heuristic estimate for study and education — not a guarantee or financial advice. Calibrate the settings to your own market and timeframe.
Notas de prensa
Renamed, Chart updatedScript de código abierto
Fiel al espíritu de TradingView, el creador de este script lo ha convertido en código abierto, para que los traders puedan revisar y verificar su funcionalidad. ¡Enhorabuena al autor! Aunque puede utilizarlo de forma gratuita, recuerde que cualquier republicación del código está sujeta a nuestras Normas internas.
Exención de responsabilidad
La información y las publicaciones no constituyen, ni deben considerarse como, asesoramiento o recomendaciones financieras, de inversión, de trading u otro tipo, proporcionadas o respaldadas por TradingView. Obtenga más información en Condiciones de uso.
Script de código abierto
Fiel al espíritu de TradingView, el creador de este script lo ha convertido en código abierto, para que los traders puedan revisar y verificar su funcionalidad. ¡Enhorabuena al autor! Aunque puede utilizarlo de forma gratuita, recuerde que cualquier republicación del código está sujeta a nuestras Normas internas.
Exención de responsabilidad
La información y las publicaciones no constituyen, ni deben considerarse como, asesoramiento o recomendaciones financieras, de inversión, de trading u otro tipo, proporcionadas o respaldadas por TradingView. Obtenga más información en Condiciones de uso.