macro

Nasdaq sell-off deepens as chip ETF logs worst week in 18 months

Nasdaq fell 4% over the week as investors exited chipmakers and CoreWeave debt worries mounted, while the VIX climbed above 22.

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what happened

US benchmark indices fell again on Friday, October 16, as investors kept exiting AI and semiconductor-linked stocks and higher crude prices weighed on sentiment. The Dow Jones lost 175 points but still gained 0.7% for the week. The S&P 500 dropped 1.1% on the day and the Nasdaq Composite slid 2.1%, while the chip-heavy Nasdaq 100 lost 2.5%. For the week, the Nasdaq ended 4% lower, its worst weekly decline since June.

According to cnbctv18.com, the VanEck Semiconductor ETF fell 3% on Friday and 10% over the week, its steepest weekly drop since April 2025. Concerns about competition from China and struggles to repay debt at companies building large data centers added to the selling. CoreWeave shares lost another 11% on Friday, taking its weekly loss to 25%, and its total debt has risen to $51 billion. The Cboe Volatility Index (VIX) moved above 22 for the first time since June. Brent jumped to $110 a barrel after Iran escalated attacks in the Strait of Hormuz.

why it matters

Rising volatility and higher oil prices together add pressure on equities, as investors reassess tech valuations while also worrying about energy costs. Analysts say the debate has shifted from how large AI can become to how much more investment will be needed before the sector turns profitable.

tags

instruments

Nasdaq CompositeS&P 500VanEck Semiconductor ETFCboe VIXBrentCoreWeave

sources

  1. Nasdaq sell-off extends; Semiconductor ETF posts worst week in 18 months while Cboe VIX jumps — cnbctv18.com, 17 October 2026 at 01:46 UTC

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