Bollinger Bands are a technical analysis tool developed by John Bollinger that helps traders assess volatility and potential buy or sell signals. They consist of three lines plotted on a chart:
1.Middle Band:
-Definition: This is a Simple Moving Average (SMA) of the stock's price, typically set to a 20-day period.
-Purpose: Serves as the baseline for the upper and lower bands.
2.Upper Band:
-Definition: The middle band plus two standard deviations of the price. It represents a high price threshold.
-Calculation: Upper Band = Middle Band + (2 * Standard Deviation).
3.Lower Band:
-Definition: The middle band minus two standard deviations of the price. It represents a low price threshold.
-Calculation: Lower Band = Middle Band - (2 * Standard Deviation).
Uses of Bollinger Bands:
-Volatility Measurement: Bands expand when volatility increases and contract when volatility decreases.
-Overbought/Oversold Conditions: Prices touching the upper band may indicate overbought conditions, while prices touching the lower band may indicate oversold conditions.
-Trend Confirmation: A price moving close to or breaking out of the bands can signal continuation or reversal of a trend.
Key Considerations:
-Band Squeeze: When the bands come close together, it can signal a period of low volatility and a potential upcoming price breakout.
-Band Breakouts: Moving beyond the bands does not always indicate a reversal; it can also signal the continuation of the current trend.
Bollinger Bands are widely used to gauge market conditions and guide trading decisions based on price volatility and potential trend changes.
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