Nvidia Gains 20% in Seven Days, Nearing $6 Trillion Market Value

Attendees on the exhibition floor during the Nvidia GTC conference in San Jose, California, in March.

Photographer: David Paul Morris/Bloomberg

Nvidia Corp. shares rose on Thursday, extending a 20% rally over the past seven days as investors plow into the chipmakers profiting from a flood of investment spending on artificial intelligence.

The stock rose as much as 4.7% to $236.47. The advance added more than $900 billion to its market capitalization and pushed it toward $6 trillion, a valuation no company has ever reached.