S&P 500 Breaks Below Rare Oversold Line, But Most Stocks Are Fine

The S&P 500 has slid into territory it hasn't touched since April. According to The Kobeissi Letter, the index is trading more than two standard deviations below its 50-day moving average, a level the outlet calls historically extreme oversold conditions.

Here's the twist. Only about 17% of the stocks inside the index are actually oversold right now — close to the smallest share since July. So while the headline index looks beaten up, most of its components aren't.

On the other side of the ledger, roughly 47% of S&P 500 stocks are overbought. That's the highest proportion since early February, and it has more than doubled since the start of October as names rallied underneath the surface.

The divergence tells the story: a handful of heavyweights are dragging the index down while the average stock keeps climbing. The Kobeissi Letter's read is blunt — the broader market looks far healthier than the S&P 500's recent performance suggests.

What happens next hinges on whether that internal strength holds or the weakness in the index's biggest names finally spreads. For now, the tape is split: bruised at the top, buoyant underneath.