Double Bollinger Band

The Double Bollinger Band indicator utilizes two sets of Bollinger Bands with different standard deviation multipliers to help traders visualize momentum and volatility zones. By identifying when price is trading between the inner and outer bands, users can determine if a trend is exhibiting strong momentum or if the market is entering a neutral consolidation phase.

Usage

The Double Bollinger Band tool is primarily used to identify "momentum channels." When price action is sustained between the narrow (default 2.0x) and wide (default 3.0x) bands, it indicates a strong trend in that direction. Conversely, if the price remains within the narrow bands or oscillates around the central moving average, the market is considered to be in a neutral or ranging state.

The inclusion of two additional Simple Moving Averages (SMAs) allows for higher-level trend filtering. For example, a trader might only look for long momentum signals when the price is also above the 200-period SMA.

Details

This script constructs two Bollinger Band overlays using a shared or independent basis length.

• Momentum Zones: The area between the 2.0 and 3.0 standard deviation lines is highlighted. Price staying in this zone suggests a high-probability trend continuation.
• Neutral Zone: The area inside the 2.0 standard deviation lines suggests lower volatility or mean-reversion behavior.
• Secondary Indicators: The script integrates two standalone SMAs (typically set to 50 and 200) to provide broader context regarding the long-term trend direction alongside the localized Bollinger Band volatility.

Settings

Bollinger Bands

• BB MA: The period length used to calculate the basis (Middle Band) and standard deviation for the narrow bands.
• BB Source: The price source used for the narrow Bollinger Band calculations (e.g., Close).
• Narrow BB Multitude: The standard deviation multiplier for the inner bands (default is 2.0).
• Wide BB Length: The period length used for the wider set of Bollinger Bands.
• Wide BB Multitude: The standard deviation multiplier for the outer bands (default is 3.0).

Moving Averages

• MA Sources: The price source used for the two additional SMAs.
• MA Length: The lookback period for the first additional SMA (default 200).
• MA2 Length: The lookback period for the second additional SMA (default 50).

FAQ

How do I use the momentum zones?

When the price closes between the narrow and wide bands, it signals that the current trend has significant strength. Many traders use this as a signal to stay in a trade rather than exiting at the first sign of a pullback.

What do the extra moving averages represent?

The extra SMAs are provided for trend context. The 50-period SMA often acts as medium-term support/resistance, while the 200-period SMA is a common benchmark for the long-term institutional trend.

How can I access the Double Bollinger Band?

You can get access on the LuxAlgo Library for charting platforms like TradingView, MetaTrader (MT4/MT5), and NinjaTrader for free.