Bollinger Bands Entry/Exit Thresholds

Bollinger Bands Entry/Exit Thresholds
Author of enhancements: chuckaschultz
Inspired and adapted from the original 'Bollinger Bands Breakout Oscillator' by LuxAlgo
Overview

Pairs nicely with Contrarian 100 MA

The Bollinger Bands Entry/Exit Thresholds is a powerful momentum-based indicator designed to help traders identify potential entry and exit points in trending or breakout markets. By leveraging Bollinger Bands, this indicator quantifies price deviations from the bands to generate bullish and bearish momentum signals, displayed as an oscillator. It includes customizable entry and exit signals based on user-defined thresholds, with visual cues plotted either on the oscillator panel or directly on the price chart.

This indicator is ideal for traders looking to capture breakout opportunities or confirm trend strength, with flexible settings to adapt to various markets and trading styles.

How It Works
The Bollinger Bands Entry/Exit Thresholds calculates two key metrics:
Bullish Momentum (Bull): Measures the extent to which the price exceeds the upper Bollinger Band, expressed as a percentage (0–100).

Bearish Momentum (Bear): Measures the extent to which the price falls below the lower Bollinger Band, also expressed as a percentage (0–100).

The indicator generates:
Long Entry Signals: Triggered when the bearish momentum (bear) crosses below a user-defined Long Threshold (default: 40). This suggests weakening bearish pressure, potentially indicating a reversal or breakout to the upside.

Exit Signals: Triggered when the bullish momentum (bull) crosses below a user-defined Sell Threshold (default: 80), indicating a potential reduction in bullish momentum and a signal to exit long positions.

Signals are visualized as tiny colored dots:
Long Entry: Blue dots, plotted either at the bottom of the oscillator or below the price bar (depending on user settings).

Exit Signal: White dots, plotted either at the top of the oscillator or above the price bar.

Calculation Methodology
Bollinger Bands:
A user-defined Length (default: 14) is used to calculate an Exponential Moving Average (EMA) of the source price (default: close).

Standard deviation is computed over the same length, multiplied by a user-defined Multiplier (default: 1.0).

Upper Band = EMA + (Standard Deviation × Multiplier)

Lower Band = EMA - (Standard Deviation × Multiplier)

Bull and Bear Momentum:
For each bar in the lookback period (length), the indicator calculates:
Bullish Momentum: The sum of positive deviations of the price above the upper band, normalized by the total absolute deviation from the upper band, scaled to a 0–100 range.

Bearish Momentum: The sum of positive deviations of the price below the lower band, normalized by the total absolute deviation from the lower band, scaled to a 0–100 range.

Formula:
bull = (sum of max(price - upper, 0) / sum of abs(price - upper)) * 100

bear = (sum of max(lower - price, 0) / sum of abs(lower - price)) * 100

Signal Generation:
Long Entry: Triggered when bear crosses below the Long Threshold.

Exit: Triggered when bull crosses below the Sell Threshold.

Settings
Length: Lookback period for EMA and standard deviation (default: 14).

Multiplier: Multiplier for standard deviation to adjust Bollinger Band width (default: 1.0).

Source: Input price data (default: close).

Long Threshold: Bearish momentum level below which a long entry signal is generated (default: 40).

Sell Threshold: Bullish momentum level below which an exit signal is generated (default: 80).

Plot Signals on Main Chart: Option to display entry/exit signals on the price chart instead of the oscillator panel (default: false).

Style:
Bullish Color: Color for bullish momentum plot (default: #f23645).

Bearish Color: Color for bearish momentum plot (default: #089981).

Visual Features
Bull and Bear Plots: Displayed as colored lines with gradient fills for visual clarity.

Midline: Horizontal line at 50 for reference.

Threshold Lines: Dashed green line for Long Threshold and dashed red line for Sell Threshold.

Signal Dots:
Long Entry: Tiny blue dots (below price bar or at oscillator bottom).

Exit: Tiny white dots (above price bar or at oscillator top).

How to Use
Add to Chart: Apply the indicator to your TradingView chart.

Adjust Settings: Customize the Length, Multiplier, Long Threshold, and Sell Threshold to suit your trading strategy.

Interpret Signals:
Enter a long position when a blue dot appears, indicating bearish momentum dropping below the Long Threshold.

Exit the long position when a white dot appears, indicating bullish momentum dropping below the Sell Threshold.

Toggle Plot Location: Enable Plot Signals on Main Chart to display signals on the price chart for easier integration with price action analysis.

Combine with Other Tools: Use alongside other indicators (e.g., trendlines, support/resistance) to confirm signals.

Notes
This indicator is inspired by LuxAlgo’s Bollinger Bands Breakout Oscillator but has been enhanced with customizable entry/exit thresholds and signal plotting options.

Best used in conjunction with other technical analysis tools to filter false signals, especially in choppy or range-bound markets.

Adjust the Multiplier to make the Bollinger Bands wider or narrower, affecting the sensitivity of the momentum calculations.

Disclaimer
This indicator is provided for educational and informational purposes only.