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US stocks opened lower after Chinese startup DeepSeek's AI model shows AI can be built cheaply. That sparked fears AI ...

The Mexican peso, a barometer of tariff worries, weakened 1.6% to 20.609 per dollar. The Canadian dollar was down 0.33% ...

U.S. stocks were headed for a sharp drop on Monday, led by technology shares, as surging interest in Chinese startup DeepSeek ...

Wall Street’s superstars are tumbling Monday as a competitor from China threatens to upend the artificial-intelligence frenzy ...

What do you get when an established market narrative is suddenly flipped upside down, with stretched investor sentiment and positioning, right before one of the busiest earnings weeks of the season?

Chip giant Nvidia ( NVDA) was more than 11% lower in the first hour of US trading. Industry peer ASML ( ASML) lost 8%, while Arm ( ARM ), Broadcom ( AVGO ), and Micron Technology ( MU) also got ...