Fears that American companies have been overspending on AI, with some already shelling out billions of dollars, have rocked markets over the past two weeks.

Stocks closed markedly lower on Tuesday as fears of a bubble in artificial intelligence technology hammered markets for a fourth consecutive trading day.

Major stock indexes ended sharply lower to begin the week, which will see AI darling Nvidia and retail giants report quarterly results, as well as the release of the September jobs report delayed because of the U.

The Dow Jones Industrial Average closed at a fresh record high Tuesday as investors piled into stocks beyond the hot AI plays

The Dow Jones Industrial Average soared more than 300 points, or nearly 0.7%, Wednesday as investors looked ahead to the end of the record-breaking government shutdown.

Dow fell 613 points. The S&P 500 slid 1.2% for a fourth straight loss. The Nasdaq dropped 1.7%. Tech led the sell-off. Nvidia fell 3% and is down 10% this month. Amazon and Microsoft also sank. Bitcoin hit $89,

American Express Co., which disclosed an increase in its consumer net write-off rate for October, is topping the list as the biggest loser within the Dow Jones Industrial Average on Monday. Its share price was down by about $16.

Former Speaker of the House Nancy Pelosi (D-Calif.) announced in early November that she would not run for re-election in 2026, ending her decades-long tenure in the U.S. House of Representatives. The decision means investors will no longer get public disclosures on what stocks her husband Paul Pelosi is buying and selling,

Investors drove the Dow to back-to-back record gains shrugging off concerns about an AI bubble and the lack of economic data tied to the government shutdown.

Doubts about a potential third Federal Reserve rate in December triggered an 800-point drop in the Dow Jones Industrial Average on Thursday.