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Nasdaq 100 Logs Worst Week In 18 Months As Chip Selloff Deepens

10/17/2026

The Nasdaq 100 recorded its worst weekly performance in over eighteen months on Friday, driven by a sharp decline in semiconductor stocks.

equity market also closed lower, with the S&P 500 dropping 1.1% and the Dow Jones Industrial Average falling 0.3%. The Russell 2000, which tracks small-cap companies, ended the session 1.7% lower.

Weakness in the chip sector was the primary factor dragging down the Nasdaq 100, which lost 2.5% on Friday.

The VanEck Semiconductor ETF (SMH) and the iShares Semiconductor ETF both declined between 3% and 4%, following a drop in shares of Micron Technology, Nvidia, and Broadcom.