Nasdaq 100 Plunges 4.5%, On Track for Biggest Single-Day Loss of 2026

The Nasdaq 100 experienced a sharp and sustained sell-off, dropping 4.5% in what market observers describe as a straight-line decline. The move puts the index on pace for its worst single-day performance of 2026.

According to The Kobeissi Letter, the scale of the drop is unusual in its velocity and magnitude. The decline reflects broad selling pressure across major technology components of the index, though specific catalysts were not cited in the source report.