Sweeping plan imposes higher duties on "worst offenders" and is in addition to 25 percent tariff on foreign automobiles slated to take effect April 3.

With the collaboration, Carroll and McKenna will generate original content directed at other real estate professionals through the company's industry-focused segment and homebuyers and sellers through the brand's more consumer-focused arm.

U.S. stocks were mostly lower, with the Nasdaq leading declines as makers of AI infrastructure suffered steep falls, many in the double digits. Nvidia was down 16%.

Gold settled 1.4% lower, down two of the past three sessions, and silver fell 2.5%, down three of the past four sessions.

Panic fueling the selloff of Nvidia, Broadcom and other tech giants is overblown.