Nvidia made history on Wednesday, powered by a stunning rally that has cemented its place at the center of the global artificial intelligence boom.

The Santa Clara chipmaker is now worth more than the stock markets of Netherlands, Spain, UAE, Italy and Poland combined, making it increasingly influential. With a 50% gain in 2025 alone, Nvidia now accounts for 9% of the S&P 500, raising questions about market concentration and valuation sustainability.

The topic of the "best" artificial intelligence (AI) stock to buy right now is a spirited debate. One may advocate for companies building AI software, while another may be a proponent of rising stars like AMD (NASDAQ: AMD) and Broadcom (NASDAQ: AVGO) after their OpenAI partnership announcement.

Nvidia is on track to become the first $5 trillion company, just three months after the Silicon Valley chipmaker was first to break through the $4 trillion barrier

Nvidia was set to open above a $5 trillion market value today, becoming the first company to reach the milestone after a powerful rally that has made the chip designer the centerpiece of the artificial intelligence boom.

The company’s shares have been boosted by the AI boom and a flurry of new deals.

After the chipmaker announced ambitious AI efforts in line with Trump’s vision of a new industrial boom, its chief executive was set to meet with the president in Korea.