Nvidia’s valuation has skyrocketed from $500 billion in 2021 to just under $4 trillion—a nearly eightfold increase that reflects its central role in the AI hardware ecosystem.

Nvidia becomes first $4 trillion company at market close. Its stock has increased more than 870 percent since ChatGPT was released in late 2022.

Nvidia ( NVDA) stock is signaling more gains early on Thursday after the chipmaker on Wednesday became the first publicly traded company to hit the $4 trillion mark, surpassing fellow tech players such as Microsoft ( MSFT) and Apple ( AAPL ).