OPEN-SOURCE SCRIPT
Atlantean Sideways / Range Regime Detector

Purpose
When using trend based indicators, you can skip the false signals when there is a sideways action, protecting you from the false signals.
Flags likely sideways/range phases using three checks:
Logic
Key Inputs
Quick Tuning
Use Cases
Alert
Script could be expanded upon your requests.
When using trend based indicators, you can skip the false signals when there is a sideways action, protecting you from the false signals.
Flags likely sideways/range phases using three checks:
- Weak trend (ADX from DMI)
- Price compression (Bollinger Band Width, normalized)
- Low volatility (NATR = ATR/Price%)
Logic
Pine Script® isSideways = (ADX < adxThresh) AND (bbNorm < 0.25) AND (NATR < natrMax)- When true: bars + background turn teal and a provisional Range High/Low (rolling rangeWin) is drawn.
Key Inputs
- DMI: diLen(22)
Optimized for 15 mins Bitcoin, could change it to 14 for more general approach - ADX: adxSmooth(14), adxThresh(18)
- Volatility: lenATR(14), natrMax(1.8)
- Visuals: rangeWin(20), bar/range toggles
Quick Tuning
- More signals: raise adxThresh to 20–25, raise natrMax to 2.5–4.0, increase BB cutoff by editing bbNorm < 0.25 --> 0.35–0.50.
- Smoother range lines: increase rangeWin to 30–40.
Use Cases
- Mean reversion inside teal ranges.
- Breakout prep when price closes outside the drawn range after teal ends. Could be used as a signal although not suggested.
- Filter trend systems: skip trades when sidewaysCond is true. This is the main purpose, for it to be combined with trend based indicators, like Supertrend.
Alert
- “Sideways Detected” triggers when isSideways is true.
Script could be expanded upon your requests.
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.