Market Mood Swings: What Bollinger Bands Reveal About Stock Sentiment Bollinger Bands have long been a staple of technical analysis, providing traders and investors with a visual representation of market volatility.
When this indicator starts flashing warning signs, it's essential to separate signal from noise.
In recent days, over 100 stocks in the S&P 500 Index (SPX) have flashed "oversold" warnings, with two thirds closing below their lower bands.