Definition
A stock index of 100 of the largest non-financial companies listed on the Nasdaq exchange, heavy in technology.
The story
On Oct 14, 2026, after a hot CPI (Consumer Price Index) report, the S&P 500 closed down 1.1% but the tech-heavy Nasdaq Composite fell 1.9%. Tech stocks tend to react harder to rate worries, because more of their value depends on profits far in the future.
Why markets watch it
NQ (E-mini Nasdaq-100) futures track it, and it's often the most rate-sensitive of the big indexes.
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We explain why it moves markets. What you do with it is your call. Commentary and education only. Not financial advice. All terms