The S&P 500 Just Had Its Worst Week Since the April 2025 Tariff Crash

Quick Read

  • SPY slid 3% as AI stocks sank, and NVIDIA alone makes up about 8% of the fund, so your “diversified” index carries heavy chip risk.

  • Chip stocks plunged 12% and XLK dropped 7%, while the Dow slipped under 1%, showing the pain concentrated in AI hardware.

  • Hot October jobs data lifted December rate-hike odds to 78%, putting Tuesday’s CPI report and NVIDIA’s November 17 earnings in focus.

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The S&P 500 closed Friday, November 6, 2026, at 7,376.86, down from 7,580.07 a week earlier. That 2.68% fall was its worst Friday-to-Friday week since the week ending April 4, 2025, when the tariff crash drove a 9.08% correction.

Kevin Frayer / Getty Images

The index has now fallen for the fourth straight week. The State Street SPDR S&P 500 ETF Trust (NYSEARCA:SPY) lost 2.7%, moving from $755.72 to $735.29.

Most of the damage came on Thursday, November 5. Midterm results set off heavy selling in AI stocks, and the S&P 500 fell 4.36%, its worst day since the April 2025 crash.

Why a 2.68% Week Set a Record

The two weeks differ greatly in size. In the April 2025 week, the index fell from 5,580.94 to 5,074.08, a much steeper drop.

The November 6 week set the mark only because the two closest weeks since then just missed it: the week ended May 23, 2025 at -2.61% and the week ended June 5, 2026 at -2.59%.

The losing streak started small. The index fell 1.95%, 0.47% and 0.57% in the weeks ended October 16, 23 and 30. It now sits 5.65% below its October 6 record close of 7,818.93.

Only the S&P 500 can claim the worst-since record. The Nasdaq Composite fell 3.37% for its own fourth straight weekly loss. However, the week ending October 16 was worse for both the Composite, at -4.48%, and the Nasdaq-100, at -5.49%.

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