Markets are assessing the reshaped US trade landscape after Trump on Thursday laid out steep new tariffs for dozens of countries.

Stocks across the globe closed lower Friday after President Donald Trump unveiled his plan for levying tariffs on trading partners, threatening to upend decades of international cooperation.

Amazon stock plunged 8% in premarket trades Friday. The e-commerce giant reported second-quarter results that topped Wall Street's expectations, but gave a mixed outlook. For the current quarter, Amazon predicted sales of $176.75 billion at the midpoint of its range, compared with analyst expectations for $173.27 billion.