The history of this market bad breadth signal points to ominous risks ahead
Why now
Thesis: Bad breadth echoes dotcom-era warning signs
Catalyst to watch: Breadth deterioration or leadership breakdown
Main risk: Breadth can stay narrow for long stretches
Why it matters
Extreme narrow breadth historically preceded major drawdowns, warning that index gains rest on few leaders.
Details
Not since the dotcom bubble have stocks thrown up this concerning metric.
Sources
- marketwatch · 2026-09-28 10:45 UTC