Narrow Bollinger Bands indicate a period of low volatility and suggest that the stock is experiencing a calm or consolidating phase. Here's what it means:
- Low Volatility: Narrow bands reflect a reduced distance between the upper and lower bands, which occurs when the stock's price fluctuates less significantly.
- Market Calm: This condition often precedes a significant price movement. As mentioned, John Bollinger observed that periods of low volatility tend to be followed by periods of high volatility.
- Potential Breakout: Traders anticipate that the current calm period won't last long, and a breakout is expected to occur soon. The narrow bands can be seen as a coiled spring, ready to unwind as volatility increases.
- Trading Implications: Some traders see this as a opportunity to trade, believing that the market is underestimating or overestimating the stock's value. However, it's important to note that Bollinger Bands are a secondary indicator, and trades should be confirmed with other analysis methods.
In summary, narrow Bollinger Bands signal a reduction in volatility and can precede a significant price movement. Traders often view this as a setup for a potential breakout, but it's crucial to use additional analysis to validate trading decisions.