OPEN-SOURCE SCRIPT
Spira Alligator
This is an trend-following pullback system inspired by Bill Williams’ Alligator, but built to operate as a purely mechanical signal system. It’s designed for traders who want to:
Follow the main trend
Buy or sell on pullbacks back into the trend
Use simple, visual logic without having to interpret too many “subtle” patterns
How it works
The Alligator lines (Lips, Teeth, Jaw) visualize trend direction and strength.
A separate trend line (default EMA 144) is used as a long-term trend filter.
The system detects a pullback back to the Teeth (Lips crosses once against the trend and then crosses back), but only when price is on the correct side of the trend line.
When the conditions are met, it prints:
A BUY signal when price is above the trend line
A SELL signal when price is below the trend line
How to use it
Add Spira Alligator to TradingView and enable the line + signal display.
Use BUY signals as candidate entries in an uptrend (price above the trend line).
Use SELL signals as candidate entries in a downtrend (price below the trend line).
Use the background color to quickly spot when an active signal event occurs.
This logic is meant as a starting point—add your own risk management (stop-loss, take-profit, confluence with other indicators) as needed.
Important notes
This is not the classic Alligator approach, but a systematic variation that produces clear, mechanical signals.
It’s made for testing and experimentation, and is especially suitable for trend-following traders who prefer simple but robust logic.
Follow the main trend
Buy or sell on pullbacks back into the trend
Use simple, visual logic without having to interpret too many “subtle” patterns
How it works
The Alligator lines (Lips, Teeth, Jaw) visualize trend direction and strength.
A separate trend line (default EMA 144) is used as a long-term trend filter.
The system detects a pullback back to the Teeth (Lips crosses once against the trend and then crosses back), but only when price is on the correct side of the trend line.
When the conditions are met, it prints:
A BUY signal when price is above the trend line
A SELL signal when price is below the trend line
How to use it
Add Spira Alligator to TradingView and enable the line + signal display.
Use BUY signals as candidate entries in an uptrend (price above the trend line).
Use SELL signals as candidate entries in a downtrend (price below the trend line).
Use the background color to quickly spot when an active signal event occurs.
This logic is meant as a starting point—add your own risk management (stop-loss, take-profit, confluence with other indicators) as needed.
Important notes
This is not the classic Alligator approach, but a systematic variation that produces clear, mechanical signals.
It’s made for testing and experimentation, and is especially suitable for trend-following traders who prefer simple but robust logic.
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.
Spira Scalper
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.
Spira Scalper
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.