AI-Fueled Selloff Rattles Global Markets

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ByJordan Lee

November 6, 2026

With SPY down 4.34%, a technology-led retreat spread across global equities as investors sought safer assets, while verified details on commodities remained limited.

SPY was down 4.34% on the session, reflecting a broad retreat from risk rather than a move confined to one exchange-traded fund. The selloff followed the S&P 500’s largest one-day loss in market value on record: technology and AI-linked shares plunged on November 5, wiping out an estimated $2.9 trillion, according to the supplied market reporting baseline. The scale of the decline makes the move relevant well beyond technology investors, including households with retirement savings tied to broad stock indexes.

Reuters described the downturn as a reassessment of risks around AI investment and policy. Investors were concerned that midterm-election gains by Democrats could lead to tighter regulation of AI data centers, potentially slowing the costly infrastructure expansion behind some technology valuations. That is a market concern, not evidence that a policy change has occurred. The distinction matters: shares can fall when investors revise expectations about future growth, even before a company’s current business results change.

The Nasdaq fell 5.5% on November 5, its largest one-day decline since April 2025, Reuters reported. The loss in Nasdaq-listed shares was roughly $2.5 trillion. Losses spread into Asia, where technology-heavy markets were hit particularly hard. South Korea’s KOSPI closed November 6 down 324.11 points, or 6.02%, at 5,059.69. It had fallen as much as 8.8%, triggering a 20-minute trading halt. Reuters also reported an emerging-market equity gauge at about a seven-month low and said Taiwan’s benchmark was on track for its worst week since 2001. Reuters described a roughly 6% fall in Japan’s Nikkei, but this brief has no verified closing figure for that session.

Bonds moved against stocks as investors sought safety. Reuters reported the U.S. 10-year Treasury yield at 4.84%, near its lowest level since September 9. Yields also fell in Japan and Germany: the Japanese 10-year yield dropped as much as 9 basis points to 1.795%, while German 10-year bund yields reached 3.22%. When investors buy existing government bonds, their prices rise and yields fall. That can ease pressure on some borrowing costs, although mortgage and consumer-loan rates also depend on other factors and do not necessarily follow Treasury yields immediately.

The dollar held steady against major currencies as safe-haven demand supported it, while falling U.S. yields limited its appeal, Reuters reported. The yen stood out as a hedge against U.S.-centered volatility. Currency moves can affect the cost of imported goods, overseas travel and companies’ international earnings, but the available reporting does not provide a settled exchange-rate snapshot for the full session. A firmer dollar can also weigh on commodities priced in dollars, though the supplied sources do not establish that as the driver of any particular commodity move today.

The source material offers no verified same-day moves in oil, natural gas or metals. It therefore cannot establish whether commodities cushioned or compounded the equity shock, and it would be misleading to infer a change in household fuel costs from the stock-market decline alone. The available facts point more clearly to a repricing in equities and a flight toward bonds and currency havens.

There were signs of stabilization after the selloff: Reuters reported that early U.S. stock futures turned higher and chip shares recovered. That bounce does not erase the recorded losses or prove the retreat has ended. Reuters identified the October U.S. jobs report as a near-term catalyst for interest-rate expectations, underscoring that investors were weighing economic data alongside AI-related concerns.

For working households, the decline may affect retirement accounts and investment portfolios, but it does not automatically mean wages, consumer prices or loan rates will change immediately. The combination of falling stocks, lower Treasury yields and safe-haven demand shows investors reducing risk across markets. The next direction will depend on incoming economic data and how companies, policymakers and investors respond to concerns about AI spending and regulation.

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