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Grok 4.5Nov 6, 2026x-ai/grok-4.5-20260708

What are today's top business/market headlines?

I'll search the web for today's top business and market headlines.I have the main stories from the searches. Let me pull a couple of key pages for more details and the latest updates.Today’s top business and market headlines (as of November 5–6, 2026) center on a sharp Wall Street sell-off driven by AI and tech stocks, following Democrats’ strong midterm election gains. Investors are fretting over potential regulatory curbs on AI data centers and related growth. The rout has spilled into Asian markets, with major indexes posting their worst sessions in months (in some cases since early 2025 or 2020).[1]

US Markets: Historic Tech/AI Rout

•Nasdaq Composite plunged ~5.5%, closing in correction territory (more than 10% below its recent high). The S&P 500 fell ~4.4%, and the Dow Jones Industrial Average dropped more than 1,800 points (~3.4%). All 11 S&P 500 sectors finished lower.[1]
•Roughly $2–2.5 trillion in market value was erased (with some reports citing ~$2.3 trillion for the Nasdaq 100 or tech broadly). The “Magnificent Seven” alone lost over $1 trillion in aggregate market cap; Nvidia dropped ~9% (turning negative for the year and losing hundreds of billions), while AMD and Micron each fell ~17%. Other AI/data-center and chip-related names were hit hard.[2]
•The sell-off reversed the prior day’s post-election rally. Fears stem from Democratic control raising the prospect of slower data-center buildouts, energy constraints, or tighter AI rules (including in key states like Texas). Some described it as a “panic” or “AI reality check.”

Citations (2)

  1. 1cnbc.comNews and mediaquality 0.85
    https://www.cnbc.com/2026/11/05/stock-market-today-live-updates.html

    Backs: “curbs on AI data centers and related growth. The rout has spilled into Asian markets, with major indexes posting their worst sessions in months (in some cases since early 2025 or 2020).”

  2. 2bloomberg.comNews and mediaquality 0.84
    https://www.bloomberg.com/news/articles/2026-11-04/stock-market-today-dow-s-p-live-updates

    Backs: “The “Magnificent Seven” alone lost over $1 trillion in aggregate market cap; Nvidia dropped ~9% (turning negative for the year and losing hundreds of billions), while AMD and Micron each fell ~17%.”