Nvidia shares rose as much as 4.7% Thursday, extending a seven-day rally to 20% and pushing the chipmaker’s market value toward $6 trillion, a level no company has previously reached. The surge added more than $900 billion in market capitalization as investors continued piling into AI-linked semiconductor stocks. The Philadelphia Semiconductor Index has climbed nearly 70% since late March, with gains also seen in Intel, Micron Technology, Advanced Micro Devices and Broadcom. AI chipmaker Cerebra

Nvidia shares rose as much as 4.7% Thursday, extending a seven-day rally to 20% and pushing the chipmaker’s market value toward $6 trillion, a level no company has previously reached. The surge added more than $900 billion in market capitalization as investors continued piling into AI-linked semiconductor stocks. The Philadelphia Semiconductor Index has climbed nearly 70% since late March, with gains also seen in Intel, Micron Technology, Advanced Micro Devices and Broadcom. AI chipmaker Cerebras Systems also surged in its IPO debut Thursday.