Nvidia is now the world’s most valuable company, surpassing Apple in a tech shake-up that reflects the growing dominance of artificial intelligence. Nvidia’s market capitalization rose nearly 3 percent Tuesday and closed at $3.

Jensen Huang runs Nvidia, the world's hottest chip maker. The company's stock surge means he is now worth more than $122 billion.

Nvidia (NVDA) is back on top as the world’s most valuable public company ahead of the U.S. presidential election.