Futures tied to the Nasdaq-100 index sank more than 4% early Monday, on concerns about disruptive Chinese AI technology. If ...

Follow along for live updates on stocks and other markets, including the Dow Jones Industrial Average, S&P 500 and Nasdaq Composite.

The heavy tech sell-off comes just ahead of the start to the sector's reporting season. With the market suddenly expressing its anxiety over AI spending and likely revenues it means Big Tech's ...