Not great. Here's their combined loss of market value Thursday, according to Dow Jones Market Data—a record one-day wipeout.

All U.S. imports face a baseline 10% tariff, effective Saturday. + Higher rates will apply to partners judged "bad actors" on ...

Oil prices slid Friday, after a plan to increase supply by the Organization of the Petroleum Exporting Countries and its allies added to fears that global tariffs will hit demand. Brent crude, the ...