U.S. stocks fell again following a sell-off that swept Europe and Asia.

The S&P 500 sank 0.8% Tuesday after earlier dropping as much as 1.5%. The Dow Jones Industrial Average fell 1.1%, and the Nasdaq composite sank 1.2%.

Nvidia was again the heaviest weight on the market as worries continue that its price shot too high in the frenzy around artificial-intelligence technology. Bitcoin, another former high-flyer, briefly dropped below $90,000.

Stock indexes fell around the world as questions rise about whether stocks have broadly become too expensive and whether the Federal Reserve will keep cutting interest rates.

On Tuesday:

The S&P 500 fell 55.09 points, or 0.8%, to 6,617.32.

The Dow Jones Industrial Average fell 498.50 points, or 1.1%, to 46,091.74.

The Nasdaq composite fell 275.2

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