Palantir spiked Tuesday, leading a tech rally, but it's still a roller-coaster market. Google dived on mixed earnings.

US stock futures dip as China retaliates with tariffs and launches an antitrust probe on Google. Palantir jumps, while Tesla ...

The Dow Jones dropped Tuesday as China imposed tariffs on U.S. imports in response to President Trump's tariffs. Palantir surged on earnings.

Musk, who also runs SpaceX and a number of other companies, has been known to make big often exaggerated promises. For ...