OPEN-SOURCE SCRIPT
Updated Bill Williams Accelerator/Decelerator Oscillator Signals
**Bill Williams Accelerator/Decelerator Oscillator Signals (AC)**
This indicator is based on Bill Williams' Accelerator/Decelerator Oscillator (AC) concept and combines AC momentum analysis with an Alligator trend filter to identify potential market acceleration and deceleration phases.
The Accelerator Oscillator measures the change in momentum of the Awesome Oscillator (AO). It helps traders observe whether market momentum is increasing or slowing before possible trend changes.
### Features
• **Classic AC calculation**
* Awesome Oscillator (AO): SMA(hl2, 5) − SMA(hl2, 34)
* Accelerator Oscillator (AC): AO − SMA(AO, 5)
• **AC Histogram**
* Green bars indicate increasing acceleration.
* Red bars indicate decreasing acceleration.
* Flat bars maintain the previous momentum color.
• **Alligator Trend Filter**
Signals are filtered using Bill Williams' Alligator to align entries with the prevailing market direction and reduce low-quality signals.
• **Three Signal Types**
* Signal 1: Early momentum confirmation.
* Signal 2: Stronger acceleration pattern before momentum continuation.
* Signal 3: Zero-line momentum transition signal.
• **Signal Priority System**
When multiple signals appear on the same bar, the indicator prioritizes the strongest signal to keep the chart cleaner.
### How It Works
**Buy signals**
Appear when AC momentum improves and price direction agrees with the Alligator trend filter.
**Sell signals**
Appear when AC momentum weakens and price direction agrees with the Alligator trend filter.
The indicator is designed to help traders visually identify changes in market acceleration, momentum strength, and possible trend continuation areas.
### Important Notes
This tool is not a standalone trading system and does not provide guaranteed entry or exit points. It should be used together with market structure, risk management, and additional analysis.
Designed for traders who use Bill Williams' trading methodology and momentum-based analysis.
This indicator is based on Bill Williams' Accelerator/Decelerator Oscillator (AC) concept and combines AC momentum analysis with an Alligator trend filter to identify potential market acceleration and deceleration phases.
The Accelerator Oscillator measures the change in momentum of the Awesome Oscillator (AO). It helps traders observe whether market momentum is increasing or slowing before possible trend changes.
### Features
• **Classic AC calculation**
* Awesome Oscillator (AO): SMA(hl2, 5) − SMA(hl2, 34)
* Accelerator Oscillator (AC): AO − SMA(AO, 5)
• **AC Histogram**
* Green bars indicate increasing acceleration.
* Red bars indicate decreasing acceleration.
* Flat bars maintain the previous momentum color.
• **Alligator Trend Filter**
Signals are filtered using Bill Williams' Alligator to align entries with the prevailing market direction and reduce low-quality signals.
• **Three Signal Types**
* Signal 1: Early momentum confirmation.
* Signal 2: Stronger acceleration pattern before momentum continuation.
* Signal 3: Zero-line momentum transition signal.
• **Signal Priority System**
When multiple signals appear on the same bar, the indicator prioritizes the strongest signal to keep the chart cleaner.
### How It Works
**Buy signals**
Appear when AC momentum improves and price direction agrees with the Alligator trend filter.
**Sell signals**
Appear when AC momentum weakens and price direction agrees with the Alligator trend filter.
The indicator is designed to help traders visually identify changes in market acceleration, momentum strength, and possible trend continuation areas.
### Important Notes
This tool is not a standalone trading system and does not provide guaranteed entry or exit points. It should be used together with market structure, risk management, and additional analysis.
Designed for traders who use Bill Williams' trading methodology and momentum-based analysis.
Release Notes
//Fixed scale formatRelease Notes
Corrected the Alligator SMMA calculation.Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.