In strong, healthy bull markets, high-beta stocks tend to lead.
These are the riskier, more volatile names—mostly Tech and Discretionary. They're the high-flyers that drive markets higher.
On the other hand, low-volatility stocks are more defensive in nature. Think Consumer Staples and Utilities. They're where investors hide when uncertainty rises.
Right now, the SPHB/SPLV ratio is collapsing to fresh 52-week lows.
When risk-on stocks underperform and defensives take the lead, it's a sign of shifting tides.