Nvidia stock briefly topped a $4 trillion market cap with Nvidia chipmaker Taiwan Semi on tap. AI plays Astera Labs and Rubrik flashed buy signals.

The tech-rich Nasdaq Composite Index vaulted nearly one per cent higher to a fresh all-time high, while artificial ...

President Donald Trump mentioned Tuesday - almost in passing - that he planned to impose a 50% tariff on copper imports. The remark hit like a bombshell and has the potential to shake up U.S. efforts ...

The U.S. will impose 50% tariffs on global imports of copper effective on Aug. 1, President Trump posted online on Wednesday.