OPEN-SOURCE SCRIPT

Customized Double Bollinger Bands [wjdtks255]

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■ Technical Overview

The Customized Double Bollinger Bands is a multi-layered volatility analysis framework. Unlike standard single-band indicators, this script synchronizes two independent volatility engines to identify both the "Value Area" (Band 1) and "Extreme Volatility Zones" (Band 2) simultaneously on a single interface.


■ Implementation & Logic

Dual-Deviation Synchronization: The script calculates two distinct standard deviation layers ($StdDev_{0.5}$ and $StdDev_{3.0}$) to provide a high-fidelity view of price distribution.

Dynamic Range Compression: By comparing the gap between the Blue (Inner) and Red (Outer) bands, traders can visually identify "Squeeze" and "Expansion" phases with institutional-grade precision.


■ Key Features

Fully Customizable Layers: Independent control over 'Length', 'StdDev', and 'Color' for both band sets allows for adaptive strategies across different timeframes.

Optimized Visual Clarity: Designed with specific line-width controls to ensure the chart remains readable even during high-volatility spikes.


■ Trading Method

Core Trend: Use the Inner Blue Bands ($0.5$ StdDev) to track the primary trend strength.

Reversal Watch: Use the Outer Red Bands ($3.0$ StdDev) as exhaustion points where price is statistically overextended.

Disclaimer

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