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.

Brian Niccol, known for reviving Taco Bell and Chipotle, now faces investor doubts nine months into his tenure.

Nvidia became the first company to touch $4 trillion in market value, a new milestone in Wall Street's bet that artificial intelligence will transform ...

Nvidia notched a market capitalisation of US$4 trillion on Wednesday (Jul 9), making it the first public company in the world ...