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But some big players remain in the race, including Zoox, which is owned by Amazon, as well as chipmaker Nvidia and Elon Musk's Tesla.

On Thursday, the Santa Clara-based chipmaker confirmed it would be laying off workers to “drive better, more efficient execution across the business.”

Cantor Fitzgerald, which lost hundreds of employees in the 9/11 attacks, has billion-dollar positions in MicroStrategy — the world’s largest corporate bitcoin holder — and is invested in Nvidia, a leading AI chipmaker.

Shares in the AI chipmaker Nvidia fell nearly 7% on Wednesday after it disclosed a $5.5-billion charge linked to U.S. restrictions on export sales of its H20 chips.

U.S. chipmaker Micron and Honeywell Building Automation also announced tariff surcharges, CBS reported.