The past few years have been undeniably profitable for Nvidia ( NVDA 4.43%) investors. The stock price has surged more than sevenfold over the past two years, and today, it topped the charts as the world's most valuable company in terms of market cap. The stock was up as much as 4.7% Wednesday morning. At 12:32 p.m. ET, the stock was still up 4.1%.

Nvidia stock rose early Wednesday after President Donald Trump sent another signal to markets that artificial intelligence would be a priority under his new administration. The absence of Nvidia CEO Jensen Huang at the inauguration Monday stuck out as Big Tech CEOs thronged to the event.