Bollinger %B Analysis & Bollinger %B Signals
Created by John Bollinger
Percent B Comes from Bollinger Bands Calculation.
This is an oscillator trading which has Three lines - 0, 50, 100
- 0 represents lower Band
- 50 represents middle Band
- 100 represents upper Band
Percentage B fluctuates between these three specific thresholds, indicating the price's position relative to the three Bollinger Bands.

%b indicator
When the price tests/touches upper band then the oscillator hits 100, if price crosses above the upper band the oscillator moves & heads to +100
When the price touches the lower band, the oscillator reaches 0: if the price goes below the lower band, the oscillator moves towards -0.
When the price tests/touches the mid band then the oscillator trading will be at 50.
Calculation
Percent B is calculated as Price Close minus Lower Band times 100.
Upper Band - Lower Band
XAU/USD Analysis & How to Generate Trading Signals
% B reflects to what degree price closes above or below any of these bands.
Buy Signal
Oscillator Technical Indicator readings above 50 is a bullish signal.

% b Bullish Buy Signal
Sell XAUUSD Signal
Oscillator Indicator readings below 50 is a bearish signal.

%b Bearish Sell Trading Signal
Learn More Lessons:
- How to Set Momentum Indicator on Gold Chart in MT4 Platform Software
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- Meaning of Bullish Reversal Chart Trade Pattern
- How Can I Modify Take-Profit XAU/USD Order MT4 XAU/USD?
- XAUUSD Hanging Man Candle Technical Analysis
- MetaTrader Gold Trading Account Sign In
- How Can I Trade MetaTrader 4 Downward XAUUSD Channel in MT4 Platform Software?
- Types of XAUUSD Traders
- Technical XAUUSD Indicators Used for Setting Stop Loss Orders

