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Nasdaq Plunges 2% in Worst Weekly Performance Since Late June Sell-Off

By Karim Fouad · Published 16 Oct 2026, 21:31 UTC

The tech-heavy Nasdaq Composite dropped 2.1% on Friday, concluding a difficult week with a 4.5% total loss that ended a monthlong winning streak.

Nasdaq
Pictured: Nasdaq · Photo: Nielsoncaetanosalmeron · CC BY 4.0 · Wikimedia Commons

Quick facts

Nasdaq daily drop
2.1%
Nasdaq weekly loss
4.5%
Brent crude price
$110 per barrel
S&P 500 weekly decline
1.95%

Investors retreated from artificial intelligence stocks as the Nasdaq Composite tumbled 2.1% on Friday. This decline snapped a monthlong winning streak, resulting in a 4.5% loss over the course of the week, the index's weakest performance since late June. The broader S&P 500 followed the downward trend with a 1% daily loss, while the Dow Jones Industrial Average slipped 0.4%.

The market volatility was fueled by a rotation away from the tech sector as investors scrutinized semiconductor and software equities. This shift occurred simultaneously with a surge in global energy costs, as Brent crude reached $110 per barrel for the first time since May, triggered by escalating tensions in the Strait of Hormuz. West Texas Intermediate crude also moved toward the $100 mark, adding pressure to equity markets.

Tech-specific concerns centered on semiconductor performance and debt-related anxiety surrounding Nvidia-backed CoreWeave. Additionally, Tesla shares erased earlier gains to close 2% lower, following the company's recent product unveiling. The Dow Jones managed to remain positive for the week with a 0.7% gain, highlighting the stark contrast in performance between traditional sectors and the tech-heavy Nasdaq index.

Investors are now turning their attention to the upcoming week, which marks a significant period for quarterly financial reporting. Several major corporations are scheduled to release their latest earnings results, including Tesla, Netflix, and Meta. These announcements are expected to provide further clarity on the health of the tech sector as it recovers from the recent wave of selling.

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