The stock market tumbled last week, led by highly valued growth plays such as Palantir and Tesla. Nvidia earnings loom.

Worries about the economy sent the stock market tumbling again on Friday. The Dow slid 804 points, or 1.8%, in recent trading. The S&P 500 was down 1.7%. The Nasdaq Composite was down 2.1%.

Poor earnings results and a slump in the major gauges leave the weekend uncertain as futures hug the flatline.

U.S. stock futures on Friday pointed to a cautious start, a day after Walmart's cautious earnings outlook rattled investors. Dow Jones Industrial Average futures rose 32 points, or 0.1%, to 44300. S&P ...

UnitedHealth shares fall after WSJ flags Justice Department investigation. Follow along for live updates on stocks and other markets, including the Dow Jones Industrial Average, S&P 500 and Nasdaq ...

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

The major indexes fell modestly while big winners tumbled. Nvidia is holding up. MercadoLibre led key earnings late.